Suppository administration device

Abstract

The present invention belongs to the technical field of medical devices, and in particular relates to a suppository administration device. It includes a sleeve, in which a control mechanism is inserted and fixedly connected to the control mechanism. A push rod is slidably connected to the control mechanism. A reverse drive mechanism is also provided in the sleeve. The reverse drive mechanism and the push rod are connected through a transmission element. A flap-type protective cover is also connected to the sleeve. The advantages are as follows: By controlling the reverse drive mechanism through the control mechanism, the reverse drive mechanism drives the push rod to move towards the head direction of the suppository administration device, thereby pushing the suppository, and the suppository is completely pushed out, thus completing the administration. A patient can complete the operation with one hand, and the operation is simple and convenient to use.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a suppository administration device. Background Art

[0002] A suppository refers to a solid preparation for administration into the human body cavity, which is made by mixing a drug with a suitable matrix and has a certain shape. A suppository is solid at normal temperature. After being inserted into the cavity, it can quickly soften, melt or dissolve in the secretion at body temperature, and gradually release the drug to produce local or systemic effects.

[0003] Classified by different administration routes, there are rectal suppositories, vaginal suppositories, urethral suppositories, dental suppositories, etc. The main efficacy of rectal suppositories is to astringe the intestine and stop bleeding, clear heat and cool blood and detoxify, and they are mostly used for treating hematochezia caused by hemorrhoids and discomfort such as anal distension. They have shapes such as conical, cylindrical, torpedo-shaped, etc.; The usage method of rectal suppositories: The patient lies on the side, straightens the lower leg, bends the thigh forward and presses it against the abdomen, applies clear water or water-soluble lubricant to the head of the suppository, inserts the suppository into the anus, and pushes it in 3 cm with a finger, then closes the legs and maintains the side-lying position for 15 minutes to prevent the rectal suppository from being extruded.

[0004] Vaginal suppositories are an external medicine for treating vaginitis or cervicitis, and have shapes such as spherical, oval, duckbill-shaped, etc. The usage method of vaginal suppositories: Lie flat or adopt an appropriate position, bend the knees and separate the legs; then insert the pointed end into the vaginal orifice and slowly push it deep into the vagina with the index finger. The appropriate depth is about five centimeters, and place it in the posterior fornix of the vagina. Because the female vagina is relatively long and elastic, placing it in the posterior fornix can give full play to the effect of the drug and also avoid the outflow of drug residues.

[0005] Whether it is a rectal suppository or a vaginal suppository, it is pushed into the anus or vagina by a finger. However, the finger is not hygienic and is prone to scratching the mucosa to produce sores, leading to other diseases. In addition, when pushed in by a finger, the depth of the suppository sent in is often insufficient, which will cause the following adverse effects: First, the suppository cannot reach the medication site, thus affecting the drug effect; Second, the inserted suppository is close to the anus or vaginal orifice, and the patient will have a strong foreign body sensation and thus feel uncomfortable; Third, if the inserted depth is insufficient, the suppository is likely to prolapse from the anus or vagina.

[0006] Patent document [CN2018101406256] discloses a vaginal suppository applicator, including a medicine tube. The medicine tube is provided with a first chamber and a second chamber for accommodating suppositories. The first chamber and the second chamber are separated by a partition. The partition is provided with a first through hole and a second through hole; a piston rod is arranged in the first chamber. The front end of the piston rod is provided with a medicine pushing head corresponding to the position of the first through hole and a push rod corresponding to the position of the second through hole. The size of the medicine pushing head is adapted to the first through hole, and the size of the push rod is adapted to the size of the second through hole. The end of the second chamber is provided with a flexible arc plate for closing the second chamber. The end of the push rod abuts against the flexible arc plate.

[0007] During use, insert the applicator into the vagina of the patient, push the piston rod towards the second chamber, the two flexible arc plates move outwards of the chamber, the second chamber opens, the medicine pushing head pushes the medicine out of the second chamber, and sends the medicine to a predetermined position in the vagina of the patient, and then take out the applicator. In this process, the patient needs to hold the medicine tube with one hand and push the piston rod with the other hand, and push at least five centimeters to push the suppository to the predetermined position. Moreover, a return spring is provided in this device, and the spring force needs to be overcome when pushing, so the operation is strenuous and the use is not convenient enough.

[0008] Because it requires two-handed operation, it is very difficult to send an anal suppository into the anus. Therefore, this device can only be used as a vaginal suppository applicator and cannot be applied to other suppositories, so the scope of application is small.

[0009] Patent document [CN2018200372084] discloses a novel sterile suppository applicator, including a sleeve and a first push rod, which is in the shape of a syringe; one end of the first push rod extending into the sleeve is provided with a bowl-shaped receiving groove for placing suppositories; it also includes a second push rod and a spreading head end; the second push rod passes through the hollow first push rod, and the end of it passing through the receiving cavity is provided with a claw-shaped head for inserting into the suppository; convex strips are arranged on the outer wall of the second push rod for cooperating with the slots on the inner wall of the first push rod; the spreading head end is bullet-shaped; it includes a plurality of support pieces, which will expand when the first push rod pushes the suppository.

[0010] When in use, align the head end of the spreader with the anal position, insert it moderately, push the first push rod forward, and the suppository passes through the opening of the sleeve and enters the head end of the spreader. The head end of the spreader slowly expands under the action of the suppository, and then push the second push rod until it reaches the predetermined position. It is necessary to push twice to achieve suppository administration because the distance to push the suppository is relatively long, and the patient needs to operate the suppository administration device with one hand without the assistance of others, that is, pinch the sleeve with the thumb and ring finger, press the first push rod with the index finger and middle finger. Limited by the structure of the hand, the suppository can only be pushed a short distance, and then continue to push a certain distance by pressing the second push rod with the index finger and middle finger to push the suppository to the predetermined position. The operation is rather troublesome and not convenient to use. Summary of the Invention

[0011] The object of the present invention is to solve the above problems and provide a suppository administration device that is simple to operate, convenient to use, can be operated with one hand, and is applicable to various suppositories.

[0012] To achieve the above object, the present invention adopts the following technical solutions: This suppository administration device is characterized in that it includes a sleeve, a manipulation mechanism is inserted into the sleeve and fixedly connected to the manipulation mechanism, a push rod is slidably connected to the manipulation mechanism, a reverse drive mechanism is further provided in the sleeve, the reverse drive mechanism and the push rod are connected by a transmission element, and a petal-shaped protective cover is also connected to the sleeve.

[0013] In the above suppository administration device, the manipulation mechanism includes an intermediate rod, and the intermediate rod is connected to at least one button through a first spring, and the first spring has a radially outward pre-tightening force on the button.

[0014] In the above suppository administration device, the button is provided with a first stop surface and a second stop surface. When the button is not pressed, the reverse drive mechanism abuts against the first stop surface, and when the button is pressed, the reverse drive mechanism abuts against the second stop surface.

[0015] In the above suppository administration device, the reverse drive mechanism includes a drive element and a second spring. One end of the second spring is connected to the sleeve, and the other end of the second spring is connected to the drive element and has a pre-tightening force on the drive element in the direction of the tail of the suppository administration device. And when the button is not pressed, the reverse drive mechanism and the push rod are relatively stationary, and when the button is pressed, the reverse drive mechanism moves towards the tail of the suppository administration device and drives the push rod to move towards the head of the suppository administration device.

[0016] In the above suppository administration device, the transmission element is a gear, a first rack meshing with the gear is provided on the reverse drive mechanism, and a second rack meshing with the gear is provided on the push rod.

[0017] In the above-mentioned suppository administration device, a sliding cavity is formed on the middle rod, the push rod is slidably connected to the sliding cavity, and a third spring is arranged in the sliding cavity. The third spring has a pre-tightening force on the push rod in the direction of the head of the suppository administration device.

[0018] In the above-mentioned suppository administration device, the middle rod includes a fixed sub-rod and a movable sub-rod. The fixed sub-rod is fixedly connected to the sleeve. One end of the movable sub-rod is axially fixed and circumferentially rotatably connected to the fixed sub-rod. The other end of the movable sub-rod is engaged with the button. A limit switch is also arranged between the movable sub-rod and the push rod. When the button is not pressed, the limit switch is in the closed state and the push rod cannot move towards the head of the suppository administration device. When the button is pressed, the limit switch is in the open state and the push rod can move towards the head of the suppository administration device.

[0019] In the above-mentioned suppository administration device, the limit switch includes a first limit block and a second limit block. The first limit block is arranged on the movable sub-rod, and the second limit block is arranged on the push rod. When the button is not pressed, the second limit block and the first limit block overlap. When the button is pressed, the first limit block and the second limit block are circumferentially displaced.

[0020] In the above-mentioned suppository administration device, a seat body is connected to the middle rod. An outer groove and an inner groove are formed on the seat body. The outer groove is slidably connected to the button. One end of the movable sub-rod is inserted into the inner groove. A third rack capable of being inserted into the inner groove is arranged on the button. Tooth patterns are arranged on the movable sub-rod and are matched with the third rack. The third rack and the movable sub-rod are engaged.

[0021] In the above-mentioned suppository administration device, the button includes a first pressing member and a second pressing member which are slidably connected to each other. The first pressing member and the second pressing member are connected by a screw rod.

[0022] Compared with the existing technology, the advantages of the present suppository administration device are as follows:

[0023] First, by controlling the reverse driving mechanism through the operating mechanism, the reverse driving mechanism drives the push rod to move towards the head of the suppository administration device, thereby pushing the suppository. The suppository is completely pushed out, thus completing the administration. The patient can complete the operation with one hand, and the operation is simple and convenient to use.

[0024] Second, a petal-shaped protective cover is connected to the sleeve, which is made of silica gel material, soft and comfortable, and will not harm the human skin. The petal-shaped protective cover has a protective effect on the suppository.

[0025] Third, by adopting the gear transmission method, it is beneficial to slowly push out the suppository instead of instantaneously ejecting the suppository under the action of ordinary elastic force. Slowly pushing out will not damage the mucous membrane of the human body cavity. The pushing distance is determined, and it can be accurately pushed to the predetermined position, which is beneficial to the exertion of the drug effect and the patient feels comfortable.

[0026] Fourth, the third spring has a pre-tightening force on the push rod in the direction of the head of the suppository administration device. That is, during the reverse driving process, the push rod is not only driven by the reverse driving mechanism, but the third spring also has a driving force on the push rod. The combined action of the two thrusts can better push the push rod.

[0027] Fifth, different types of suppositories need to be pushed to different depths at the predetermined position. The button of this suppository administration device can be adjusted. If it is necessary to increase the pushing depth, adjust it in the direction of the tail of the suppository administration device. Conversely, if it is necessary to reduce the pushing depth, adjust it in the direction of the head of the suppository administration device. It can be applicable to a variety of suppositories and has a wide range of applications. Description of the Drawings

[0028] Figure 1 is a perspective view of the suppository administration device provided by the present invention.

[0029] Figure 2 is an exploded view of the suppository administration device provided by the present invention.

[0030] Figure 3 is a cross-sectional view of the suppository administration device provided by the present invention.

[0031] Figure 4 is provided by the present invention Figure 3 partial enlarged view of part A.

[0032] Figure 5 is a front view of the present invention with the cap removed.

[0033] Figure 6 is a perspective view of the internal structure of the suppository administration device provided by the present invention.

[0034] Figure 7 is a front view of the internal structure of the suppository administration device provided by the present invention.

[0035] Figure 8 is a side view of the internal structure of the suppository administration device provided by the present invention.

[0036] Figure 9 is a perspective view of the operating mechanism provided by the present invention.

[0037] Figure 10 is a cross-sectional view of the operating mechanism provided by the present invention.

[0038] Figure 11 is a sectional perspective view of the operating mechanism provided by the present invention.

[0039] Figure 12 is a perspective view of the operating mechanism in an exploded state provided by the present invention.

[0040] Figure 13It is the front view of the operating mechanism provided by the present invention when in an exploded state.

[0041] Figure 14 It is the sectional perspective view of the operating mechanism provided by the present invention when in an exploded state.

[0042] Figure 15 It is the perspective view of one angle of the internal structure of the operating mechanism provided by the present invention.

[0043] Figure 16 It is the perspective view of another angle of the internal structure of the operating mechanism provided by the present invention.

[0044] Figure 17 It is the perspective view of one angle of the seat body and the fixed split rod provided by the present invention.

[0045] Figure 18 It is the perspective view of another angle of the seat body and the fixed split rod provided by the present invention.

[0046] Figure 19 It is the sectional view of the button after being pressed provided by the present invention.

[0047] Figure 20 It is the sectional view of the button not being pressed provided by the present invention.

[0048] Figure 21 It is the perspective view of the reverse drive mechanism and the transmission element provided by the present invention.

[0049] Figure 22 It is the front view of the reverse drive mechanism and the transmission element provided by the present invention.

[0050] Figure 23 It is the perspective view of one angle of the reverse drive mechanism provided by the present invention.

[0051] Figure 24 It is the perspective view of another angle of the reverse drive mechanism provided by the present invention.

[0052] Figure 25 It is the sectional view of the reverse drive mechanism and the transmission element provided by the present invention.

[0053] Figure 26 It is the perspective view of the fixed bracket provided by the present invention.

[0054] Figure 27 It is the top view of the fixed bracket provided by the present invention.

[0055] Figure 28 It is the perspective view of one angle of the petal-shaped protective cover provided by the present invention.

[0056] Figure 29 It is the perspective view of another angle of the petal-shaped protective cover provided by the present invention.

[0057] Figure 30 It is a perspective three-dimensional view of one perspective after the button provided by the present invention is disassembled.

[0058] Figure 31 It is a perspective three-dimensional view of another perspective after the button provided by the present invention is disassembled.

[0059] Figure 32 It is the front view of the suppository administration device provided by the present invention when it is in the intermediate state.

[0060] Figure 33 It is the front view of the suppository administration device provided by the present invention when it is in the final state.

[0061] Figure 34 It is a perspective three-dimensional view of the suppository administration device provided by the present invention when it is in the final state.

[0062] Figure 35 It is provided by the present invention Figure 32 Cross-sectional view.

[0063] Figure 36 It is provided by the present invention Figure 33 Cross-sectional view.

[0064] In the figure, sleeve 1, operating mechanism 2, push rod 3, reverse drive mechanism 4, transmission element 5, placement cavity 6, intermediate rod 7, first spring 8, button 9, first stop surface 10, second stop surface 11, drive element 12, second spring 13, tail 14 of the suppository administration device, head 15 of the suppository administration device, gear 16, first rack 17, second rack 18, sliding cavity 19, third spring 20, fixed split rod 21, movable split rod 22, limit switch 23, first limit block 24, second limit block 25, outer groove 26, inner groove 27, third rack 28, tooth pattern 29, fixed bracket 30, inner ring body 31, fixed rod 32, petal-shaped protective cover 33, petal 34, sliding surface 36, fixed block 37, first sliding sub-cavity 38, second sliding sub-cavity 39, seat body 40, through port 41, disc 42, through hole 43, first pressing member 45, second pressing member 46, sliding bar 47, sliding groove 48, opening 49, side groove 50, screw 51, threaded hole 52, traction rope 53, guide ring 54, cap 55, sponge 56, capsule shell 57, paraffin oil 58. Detailed implementation manners

[0065] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0066] As Figures 1 - 3 shown, the upper cover of this suppository administration device is provided with a cap 55. Inside the cap 55, there is a sponge 56 that cooperates with the petal-shaped protective cover 33. Inside the sponge 56, there is a capsule shell 57 made of gelatin. Inside the capsule shell 57, there is paraffin oil 58 filled. Several small holes are opened on the capsule shell 57. When in use, cover the cap 55 and slightly squeeze it to squeeze the paraffin oil out of the capsule shell 57 to moisten the sponge 56. Hold the sleeve 1 and rotate it so that the petal-shaped protective cover 33 is coated with a layer of paraffin oil 58, which is beneficial for inserting it into the anus or vagina.

[0067] As Figures 5 - 8 shown, this suppository administration device includes a sleeve 1. Inside the sleeve 1, there is a control mechanism 2 inserted. A fixed connection is provided between the inner wall of the sleeve 1 and the control mechanism 2. One end of the control mechanism 2 extends out of the sleeve 1. Inside the sleeve 1, there is also a reverse driving mechanism 4. The end of the reverse driving mechanism 4 abuts against the control mechanism 2. The patient can operate the control mechanism 2 with one hand and control the reverse driving mechanism 4 through the control mechanism 2. A push rod 3 is slidably connected to the control mechanism 2. The push rod 3 is used to push the suppository. A transmission element 5 is connected between the reverse driving mechanism 4 and the push rod 3. The reverse driving mechanism 4 reversely drives the push rod 3 to move through the transmission element 5. Reverse driving means that the moving directions of the reverse driving mechanism 4 and the push rod 3 are opposite, and it is driven by reverse movement. A petal-shaped protective cover 33 is also connected to the sleeve 1. When the suppository administration device is in the state where the suppository is not pushed out, a placement cavity 6 for placing the suppository is formed inside the petal-shaped protective cover 33.

[0068] When in use, operate the control mechanism 2 with one hand. After the operation is completed, the reverse driving mechanism 4 starts to move towards the tail 14 of the suppository administration device. During the movement of the reverse driving mechanism 4, it drives the push rod 3 to move towards the head 15 of the suppository administration device through the transmission element 5. Then, the push rod 3 pushes the suppository to move until the reverse driving mechanism 4 stops moving and the suppository is completely pushed out, thus completing the administration.

[0069] As Figures 9 - 14 shown, the control mechanism 2 includes an intermediate rod 7. At least one button 9 is provided on the side of the intermediate rod 7. The button 9 is connected to the intermediate rod 7 through a first spring 8. The first spring 8 is arranged radially, and the first spring 8 has a radially outward pre-tightening force on the button 9. The button 9 is provided with a first stop surface 10 and a second stop surface 11. When the patient does not operate, that is, when the button 9 is not pressed, the reverse driving mechanism 4 abuts against the first stop surface 10 and the reverse driving mechanism 4 does not move relative to the control mechanism 2. When the patient operates with one hand, that is, presses the button 9 with one hand, the button 9 moves radially relative to the intermediate rod 7. At this time, the reverse driving mechanism 4 disengages from the first stop surface 10 and moves towards the tail 14 of the suppository administration device along the sliding surface 36 of the button 9 until the reverse driving mechanism 4 abuts against the second stop surface 11.

[0070] Furthermore, a sliding cavity 19 is formed in the middle rod 7. The push rod 3 is slidably connected to the sliding cavity 19. A third spring 20 is arranged in the sliding cavity 19. The third spring 20 has a pre-tightening force on the push rod 3 in the direction of the head 15 of the suppository administration device. That is, during the reverse driving process, the push rod 3 is not only driven by the reverse driving mechanism 4. The third spring 20 also has a driving force on the push rod 3. The action of the double thrust can better push the push rod 3. Moreover, when the patient does not operate, that is, when the button 9 is not pressed, the reverse driving mechanism 4 abuts against the first stop surface 10, and the reverse driving mechanism 4 cannot move towards the tail 14 of the suppository administration device. At this time, due to the limitation of the gear transmission, the third spring 20 cannot push the push rod 3 to move either. That is, when the patient does not operate, the double thrust is limited by the operating mechanism 2, avoiding the situation that the third spring 20 alone pushes the push rod 3 out.

[0071] Furthermore, as Figures 14 - 20 shown, the middle rod 7 includes a fixed sub-rod 21 and a movable sub-rod 22. The fixed sub-rod 21 is fixedly connected to the sleeve 1 through a fixed bracket 30. One end of the movable sub-rod 22 is axially fixedly and circumferentially rotatably connected to the fixed sub-rod 21, and the other end of the movable sub-rod 22 is engaged with the button 9. A limit switch 23 is also arranged between the movable sub-rod 22 and the push rod 3. A first limit block 24 is arranged on the movable sub-rod 22, and a second limit block 25 is arranged on the push rod 3. The first limit block 24 and the second limit block 25 together constitute the limit switch 23. The limit switch 23 is used to limit the third spring 20 from pushing the push rod 3 to move in the direction of the head 15 of the suppository administration device. The limit switch 23 has two states, namely a closed state and an open state. When the button 9 is not pressed, the limit switch 23 is in the closed state, and the third spring 20 cannot push the push rod 3 to move towards the head 15 of the suppository administration device; when the button 9 is pressed, the limit switch 23 is in the open state, and the third spring 20 can push the push rod 3 to move towards the head 15 of the suppository administration device.

[0072] Furthermore, a seat body 40 is fixedly connected to the fixed sub-rod 21. The movable sub-rod 22 passes through the seat body 40. An outer groove 26 and an inner groove 27 are formed in the seat body 40. The opening of the outer groove 26 faces the side. The button 9 is inserted into the outer groove 26 and is slidably connected to the outer groove 26. The first spring 8 is arranged in the outer groove 26. One end of the first spring 8 is connected to the button 9, and the other end of the first spring 8 is connected to the inner wall of the outer groove 26. The movable sub-rod 22 is inserted into the inner groove 27 and a tooth pattern 29 is arranged on the inserted end. The outer groove 26 and the inner groove 27 are communicated. A third rack 28 that can be inserted into the inner groove 27 is arranged on the button 9. The third rack 28 is engaged with the tooth pattern 29 on the movable sub-rod 22.

[0073] When the patient does not operate, that is, when the button 9 is not pressed, the second limit block 25 and the first limit block 24 are in a superposed state, that is, they are not circumferentially offset. At this time, the limit switch 23 is in a closed state, and the second limit block 25 on the push rod 3 is blocked by the first limit block 24, and the third spring 20 cannot push the push rod 3 to move towards the head 15 of the suppository administration device; when the patient operates with one hand, that is, when the button 9 is pressed, the third rack 28 moves towards the middle. Since the movable split rod 22 is engaged with the third rack 28, the third rack 28 drives the movable split rod 22 to rotate by a certain angle. The second limit block 25 and the first limit block 24 that were originally in a superposed state are circumferentially misaligned, the limit switch 23 is in an open state, and the third spring 20 pushes the push rod 3 to move towards the head 15 of the suppository administration device.

[0074] As Figures 21 - 25 shown, the reverse drive mechanism 4 includes a drive element 12 and a second spring 13. The sleeve 1 and the drive element 12 are circumferentially fixed and axially slidably connected. The fixed bracket 30 restricts the circumferential rotation of the drive element 12, and the drive element 12 axially moves along the inner walls of the fixed bracket 30 and the sleeve 1. A side groove 50 for accommodating the second spring 13 is provided on the drive element 12. A fixed block 37 is provided on the sleeve 1. One end of the second spring 13 is connected to the fixed block 37, and the other end of the second spring 13 is connected to the drive element 12. The second spring 13 has a pre-tightening force on the drive element 12 towards the tail 14 of the suppository administration device. When the patient operates with one hand, that is, when pressing the button 9 with one hand, the end of the drive element 12 disengages from the first stop surface 10. Under the action of the second spring 13, the drive element 12 moves towards the tail 14 of the suppository administration device along the sliding surface 36 of the button 9 until it abuts against the second stop surface 11. During this process, the drive element 12 reversely drives the push rod 3 to move towards the head 15 of the suppository administration device, thereby pushing out the suppository to complete the administration.

[0075] As Figure 28 and 29 shown, a disc 42 is fixedly connected to the sleeve 1. A through hole 43 is provided in the middle of the disc 42. A plurality of petals 34 are connected to the edge of the disc 42. The petals 34 are made of silica gel material, which is soft and comfortable and will not harm the human skin. The adjacent petals 34 partially overlap with each other to jointly form a petal-shaped protective cover 33. When the suppository administration device is in a state where the suppository is not pushed out, a placement cavity 6 for placing the suppository is formed inside the petal-shaped protective cover 33. Before use, the suppository needs to be placed in the placement cavity 6 and inserted into the through hole 43 of the disc 42. The petal-shaped protective cover 33 has a protective effect on the suppository. As an improvement, a hollow guide tube is also connected to the disc 42, and the guide tube is communicated with the through hole 43. The suppository is placed in the guide tube and circumferentially moves along the inner wall of the guide tube.

[0076] As Figure 3 and 4As shown in the figure, the outer surface of the flap 34 and the driving element 12 are connected by a traction rope 53, and the traction rope 53 has elasticity. A guide ring 54 is provided on the sleeve 1, and the traction rope 53 passes through the guide ring 54. When the patient operates the operating mechanism 2 with one hand, the driving element 12 moves towards the tail 14 of the suppository administration device under the action of the second spring 13. The driving element 12 drives the flap 34 to open outwards through the traction rope 53, that is, the flap-type protective cover 33 opens, and the suppository is exposed, which is beneficial to pushing the suppository into the vagina or anus.

[0077] As Figure 25 shown in the figure, the transmission element 5 is a gear 16, a first rack 17 meshing with the gear 16 is provided on the driving element 12, and a second rack 18 meshing with the gear 16 is provided on the push rod 3. When the patient operates with one hand, that is, presses the button 9 with one hand, the driving element 12 moves towards the tail 14 of the suppository administration device, the first rack 17 moves towards the tail 14 of the suppository administration device, and drives the second rack 18 to move towards the head 15 of the suppository administration device through the gear 16, thereby driving the push rod 3 to move towards the head 15 of the suppository administration device. The push rod 3 pushes the suppository to a predetermined position to complete the administration.

[0078] Adopting the gear transmission method is beneficial to slowly pushing out the suppository instead of instantaneously ejecting the suppository under the action of ordinary elastic force. Instantaneous ejection under ordinary elastic force is likely to damage the mucous membrane of the human body cavity, and the ejection distance is not certain, that is, it cannot be accurately pushed to the predetermined position. If it is pushed too deep, the better medicinal effect cannot be exerted. If it is pushed too shallow, the patient will have a foreign body sensation and be very uncomfortable. However, slow ejection will not cause damage to the mucous membrane of the human body cavity, the pushing distance is determined, it can be accurately pushed to the predetermined position, which is beneficial to the exertion of the medicinal effect, and the patient feels comfortable.

[0079] As Figure 30 and 31 shown in the figure, because different types of suppositories need to be pushed to different depths at the predetermined position, in order to improve the applicability, the button 9 is divided into a first pressing part 45 and a second pressing part 46. The length of the first pressing part 45 is less than that of the second pressing part 46. A sliding bar 47 is provided on the first pressing part 45, a sliding groove 48 is provided on the first pressing part 45, the sliding bar 47 is inserted into the sliding groove 48, and a number of threaded holes are provided at intervals at the bottom of the sliding groove 48. The first pressing part 45 is fixed on the second pressing part 46 through a screw 51. If it is necessary to increase the pushing depth, adjust the first pressing part 45 towards the tail 14 of the suppository administration device. At this time, the distance between the first pressing part 45 and the sleeve 1 increases, and the reverse driving mechanism 4 drives the push rod 3 to move a longer distance; conversely, if it is necessary to reduce the pushing depth, adjust the first pressing part 45 towards the head 15 of the suppository administration device. At this time, the distance between the first pressing part 45 and the sleeve 1 decreases, and the reverse driving mechanism 4 drives the push rod 3 to move a shorter distance.

[0080] As Figure 26 and 27 shown, the sleeve 1 and the operating mechanism 2 are connected by a fixing bracket 30. The fixing bracket 30 includes an inner ring body 31. A number of fixing rods 32 are provided on the inner ring body 31. One end of the fixing rod 32 is fixedly connected to the sleeve 1, and the other end of the fixing rod 32 is fixedly connected to the fixing sub-rod 21. A through opening 41 is formed on the fixing sub-rod 21. The gear 16 passes through the through opening 41 and is rotatably connected to the inner ring body 31 through a rotating shaft. The gear 16 is radially arranged.

[0081] As Figure 1 shown, after use, the suppository administration device needs to be restored to its initial state for the next use. To restore the initial state, the driving element 12 needs to be pushed towards the head 15 of the suppository administration device. When pushing, it is not easy to completely push the driving element 12 into the sleeve 1 only by pinching the side of the driving element 12. For this reason, an opening 49 is formed on the sleeve 1, and the finger pinching the driving element 12 can move to the position where the opening 49 is located, and it is very convenient to completely push the driving element 12 into the sleeve 1.

[0082] As Figure 2 and Figure 5 shown, at this time, the button 9 of the suppository administration device is not pressed, the driving element 12 abuts against the first stop surface 10 of the button 9, and the suppository administration device is in the initial state. As Figure 32 and 35 shown, at this time, the button 9 is pressed into the seat body 40, but the driving element 12 has not yet moved down along the sliding surface 36, and the suppository administration device is in the intermediate state. As Figure 33 , 34 and 36 shown, the driving element 12 moves towards the tail 14 of the suppository administration device until the driving element 12 abuts against the second stop surface 11, and the suppository administration device is in the final state. From the initial state - intermediate state - final state, it shows the change track during the use of the suppository administration device.

[0083] Usage method of this suppository administration device: When the button 9 is not pressed and the flap-shaped protective cover 33 is closed, the placement cavity 6 is empty at this time. Press the button 9, and the driving element 12 moves towards the tail 14 of the suppository administration device under the action of the second spring 13, and the flap-shaped protective cover 33 opens. Then, place the suppository into the placement cavity 6 and insert it into the through hole 43 of the disc 42. Then, hold the sleeve 1 with one hand and pinch the driving element 12 with the other hand to push it towards the head 15 of the suppository administration device. The pressed button 9 resets under the action of the first spring 8, and the flap-shaped protective cover 33 closes again. At this time, put on the cap 55 and squeeze it slightly to squeeze out the paraffin oil from the capsule shell 57 to moisten the sponge 56. Rotate the sleeve 1 held by hand so that the flap-shaped protective cover 33 is coated with a layer of paraffin oil 58. Align the flap-shaped protective cover 33 with the vaginal or anal orifice, insert it moderately, and then press the button 9 with one hand. The driving element 12 moves towards the tail 14 of the suppository administration device under the action of the second spring 13, and drives the push rod 3 to move towards the head 15 of the suppository administration device to push the suppository to the predetermined position. Finally, take out this device from the vaginal or anal orifice.

[0084] The specific embodiments described herein are merely illustrative of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the present invention or exceed the scope defined by the appended claims.

[0085] Although this article uses more terms, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the present invention.

Claims

1. A suppository administration device, characterized in that, it includes a sleeve (1), a manipulation mechanism (2) is inserted through the sleeve (1) and fixedly connected to the manipulation mechanism (2), a push rod (3) is slidably connected to the manipulation mechanism (2), a reverse driving mechanism (4) is further provided in the sleeve (1), and the reverse driving mechanism (4) and the push rod (3) are connected by a transmission element (5), and a flap-shaped protective cover (33) is also connected to the sleeve (1). The manipulation mechanism (2) includes an intermediate rod (7), the intermediate rod (7) is connected to at least one button (9) through a first spring (8), and the first spring (8) has a radially outward pre-tightening force on the button (9). The button (9) is provided with a first stop surface (10) and a second stop surface (11). When the button (9) is not pressed, the reverse driving mechanism (4) abuts against the first stop surface (10), and when the button (9) is pressed, the reverse driving mechanism (4) abuts against the second stop surface (11). The reverse driving mechanism (4) includes a driving element (12) and a second spring (13). One end of the second spring (13) is connected to the sleeve (1), and the other end of the second spring (13) is connected to the driving element (12) and has a pre-tightening force on the driving element (12) in the direction of the tail (14) of the suppository administration device. And when the button (9) is not pressed, the reverse driving mechanism (4) and the push rod (3) are relatively stationary. When the button (9) is pressed, the reverse driving mechanism (4) moves towards the tail (14) of the suppository administration device and drives the push rod (3) to move towards the head (15) of the suppository administration device. The transmission element (5) is a gear (16), a first rack (17) meshing with the gear (16) is provided on the reverse driving mechanism (4), and a second rack (18) meshing with the gear (16) is provided on the push rod (3). A sliding cavity (19) is formed on the intermediate rod (7), the push rod (3) is slidably connected to the sliding cavity (19), and a third spring (20) is provided in the sliding cavity (19), and the third spring (20) has a pre-tightening force on the push rod (3) in the direction of the head (15) of the suppository administration device. The intermediate rod (7) includes a fixed sub-rod (21) and a movable sub-rod (22). The fixed sub-rod (21) is fixedly connected to the sleeve (1). One end of the movable sub-rod (22) is axially fixedly and circumferentially rotatably connected to the fixed sub-rod (21), and the other end of the movable sub-rod (22) meshes with the button (9). A limit switch (23) is also provided between the movable sub-rod (22) and the push rod (3). And when the button (9) is not pressed, the limit switch (23) is in a closed state and the push rod (3) cannot move towards the head (15) of the suppository administration device. When the button (9) is pressed, the limit switch (23) is in an open state and the push rod (3) can move towards the head (15) of the suppository administration device. The limit switch (23) includes a first limit block (24) and a second limit block (25). The first limit block (24) is arranged on the movable split rod (22), and the second limit block (25) is arranged on the push rod (3). When the button (9) is not pressed, the second limit block (25) and the first limit block (24) overlap each other. When the button (9) is pressed, the first limit block (24) and the second limit block (25) are circumferentially displaced. A seat body (40) is connected to the intermediate rod (7). An outer groove (26) and an inner groove (27) are formed in the seat body (40). The outer groove (26) is slidably connected to the button (9). One end of the movable split rod (22) is inserted into the inner groove (27). A third rack (28) capable of being inserted into the inner groove (27) is provided on the button (9). A tooth pattern (29) cooperating with the third rack (28) is provided on the movable split rod (22). The third rack (28) and the movable split rod (22) are meshed with each other. A disc (42) is fixedly connected to the sleeve (1). A through hole (43) is formed in the middle of the disc (42). A plurality of petals (34) are connected to the edge of the disc (42). The adjacent petals (34) partially overlap each other to jointly form a petal-shaped protective cover (33).

2. The suppository administration device according to claim 1, characterized in that the button (9) includes a first pressing member (45) and a second pressing member (46) which are slidably connected to each other. The first pressing member (45) and the second pressing member (46) are connected by a screw rod (51).

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