Enema device

Abstract

The invention relates to the technical field of medical instruments, in particular to an enema device which comprises an intubation tube, a connector and a plurality of connecting rods, the output end of the intubation tube is used for being inserted into the anus, the input end of the intubation tube is fixedly connected with an annular connecting piece, the input end of the connector is connected with an injector, and the output end of the connector is fixedly connected with an annular shell. According to the device, through expansion and contraction of the ring piece and the air bag, the ring piece and the air bag alternately seal the anus, in the process of keeping the anus in a sealed state, the ring piece and the air bag are intermittently separated from the inner wall of the intestinal tract, and therefore the sealing effect of the anus is improved. In the separation process, a period of recovery time can be provided for the intestinal tract in a tightened state, the adhesion phenomenon caused by long-time contact of the intestinal mucosa can be effectively prevented, and therefore mucosa tearing caused in the process that the enema device is taken out of the anus is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and in particular to an enema device. Background Art

[0002] Medical institutions use enema to administer medicine to the intestine or clean the inner wall of the intestine. A common enema method is to use a syringe to inject the medicine into a slender hose. The tail end of the hose is inserted into the intestine from the anus, and the syringe can be pushed to deliver the medicine directly to the intestine. In actual use, in order to prevent the medicine from leaking out of the anus, the tail end of the hose will be connected to a spindle-shaped infuser made of elastic material. During the process of inserting the tail end of the hose into the anus, the infuser needs to be inserted into the anus. The infuser rests on the inner wall of the intestine and keeps the intestine in a taut state, thereby preventing the medicine from leaking out during the infusion process. However, since the outer wall of the infuser is relatively wide, after the anus is sealed after being inserted into the patient's body, it will not move again. The intestine in contact with the outer wall of the infuser will remain in a taut state for a long time. During this period, the mucosa of the inner wall of the intestine will be tightly attached to the infuser. When the infuser is taken out after the enema is completed, due to the adhesion of the mucosa, part of the mucosa will be torn and taken out with the infuser, causing pain and discomfort to the patient. Summary of the invention

[0003] The purpose of the present invention is to solve the defect in the prior art that the mucosa is easily torn when the syringe is taken out, and to propose an enema device.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An enema device is designed, including a cannula, a joint and a plurality of connecting rods, wherein the output end of the cannula is used for inserting into the anus, the input end of the cannula is fixedly connected with a circular ring-shaped connecting piece, the input end of the joint is connected to a syringe, the output end of the joint is fixedly connected with a circular ring-shaped shell, the connecting rod is located between the connecting piece and the shell, and one end of the connecting rod is vertically fixedly connected to the end face of the connecting piece, and the other end of the connecting rod is vertically fixedly connected to the end face of the shell, a first circular ring-shaped slide plate is slidably fitted inside the connecting piece, a second circular ring-shaped slide plate is slidably fitted inside the shell, a ring member made of a circular ring-shaped silicone material is provided between the first slide plate and the second slide plate, an circular ring-shaped air bag is fixedly connected to the outer wall of the shell, and a driving mechanism is provided inside the shell to drive the ring member and the air bag to intermittently deform when the syringe administers the drug.

[0006] Preferably, the driving mechanism comprises a driving structure, a first transmission structure and a second transmission structure, the driving structure drives the ring to deform through the first transmission structure, and the driving structure drives the airbag to deform through the second transmission structure.

[0007] Preferably, the driving structure includes a rotating tube, in which a turbine is fixedly connected, one end of the rotating tube is rotatably installed in the connecting piece, and the other end is rotatably installed in the shell and an incomplete end face gear is fixedly connected to the outer wall, a plurality of mounting plates are fixedly connected inside the shell, and the mounting plates correspond to the connecting rods one by one, and a rotating shaft is rotatably installed on the mounting plate, one end of the rotating shaft is fixedly connected to a driven gear, and the other end is fixedly connected to an incomplete gear, the driven gear cooperates with the incomplete end face gear, and a spring is provided on the mounting plate, one end of the spring is fixedly connected to the rotating shaft, and the other end is fixedly connected to the mounting plate.

[0008] Preferably, the first transmission structure includes a first rack, a second rack and an internally threaded tube, the first rack is fixedly connected to the first slide, the second rack is fixedly connected to the second slide, a pinion is rotatably mounted on the connecting rod, both the first rack and the second rack are matched with the pinion, the internally threaded tube is rotatably mounted on the inner wall of the shell, a driven end face gear is coaxially fixedly connected to the end face of the internally threaded tube, the driven end face gear matches the incomplete gear, the internal thread of the internally threaded tube is matched with a first screw, and one end of the first screw is fixedly connected to the end of the first rack.

[0009] Preferably, the second transmission structure includes a cylinder body and a transmission gear, the transmission gear is rotatably mounted on the mounting plate, a nut seat is fixedly connected to the end face of the transmission gear, a second screw rod is fitted with the inner thread of the nut seat, a piston is fixedly connected to the end of the second screw rod, the cylinder body is fixedly connected to the inner wall of the shell, the cylinder body is connected to the airbag, and the piston is slidably fitted in the cylinder body.

[0010] The enema device proposed by the present invention has the beneficial effect that: the enema device expands and contracts the ring and the air bag so that the two alternately seal the anus. In the process of keeping the anus in a sealed state, the ring and the air bag are intermittently separated from the inner wall of the intestine. The separation process can not only provide a period of recovery time for the intestine in a taut state, but also effectively prevent the adhesion of the intestinal mucosa due to long-term contact, thereby preventing the mucosal tearing during the process of taking the enema device out of the anus. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The present invention is a schematic structural diagram of an enema device.

[0012] Figure 2 The figure is a schematic diagram of the internal structure of an enema device proposed by the present invention.

[0013] Figure 3 The present invention is a schematic diagram of the structure inside the shell of an enema device.

[0014] Figure 4The present invention is a schematic diagram of the structure inside a rotating tube of an enema device.

[0015] Figure 5 An enema device proposed by the present invention Figure 4 A partial enlarged view.

[0016] Figure 6 An enema device proposed by the present invention Figure 5 main view.

[0017] Figure 7 This is a schematic structural diagram of an incomplete end face gear of an enema device proposed by the present invention.

[0018] In the figure: 1, insert tube; 2, joint; 3, connecting piece; 4, housing; 5, connecting rod; 6, rotating tube; 7, first slide plate; 8, second slide plate; 9, ring; 10, second rack; 11, first rack; 12, air bag; 13, pinion; 14, first screw; 15, internal threaded tube; 16, driven end face gear; 17, incomplete end face gear; 18, driven gear; 19, rotating shaft; 20, incomplete gear; 21, second screw; 22, transmission gear; 23, cylinder; 24, piston; 25, nut seat; 26, mounting plate; 27, turbine; 28, spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figure 1-Figure 3 , an enema device, comprising a cannula 1, a joint 2 and a plurality of connecting rods 5, the output end of the cannula 1 is used to be inserted into the anus, the input end of the cannula 1 is fixedly connected with a circular connecting piece 3, the input end of the joint 2 is connected to a syringe, the output end of the joint 2 is fixedly connected with a circular shell 4, the connecting rod 5 is located between the connecting piece 3 and the shell 4, and one end of the connecting rod 5 is vertically fixedly connected to the end surface of the connecting piece 3, and the other end of the connecting rod 5 is vertically fixedly connected to the end surface of the shell 4, a circular first slide plate 7 is slidably fitted inside the connecting piece 3, a circular second slide plate 8 is slidably fitted inside the shell 4, a circular ring member 9 made of a silicone material is provided between the first slide plate 7 and the second slide plate 8, an circular air bag 12 is fixedly connected to the outer wall of the shell 4, and a driving mechanism is provided inside the shell 4 to drive the ring member 9 and the air bag 12 to intermittently deform when the syringe administers the drug.

[0021] When performing enema, the syringe is connected to the connector 2 through a slender hose, and then the cannula 1 is inserted into the intestine from the patient's anus until the ring 9 and the air bag 12 enter the anus. During the process of the cannula 1 entering the intestine, the ring 9 is in a contracted state, and the air bag 12 is in an expanded state.

[0022] After the ring 9 and the air bag 12 enter the intestine, the syringe inputs the enema liquid into the connector 2 through the hose, and the liquid in the connector 2 is poured into the intestine through the cannula 1 to administer the drug to the intestine.

[0023] During the process of injecting the drug solution into the intestine, the driving mechanism will cause the ring 9 and the air bag 12 to expand and contract alternately. The expanded ring 9 and the air bag 12 will seal the anus, thereby preventing the drug solution in the intestine from leaking.

[0024] Moreover, when the ring 9 is in the expanded state, the airbag 12 is in the contracted state, and the ring 9 seals the anus; when the airbag 12 is in the collision state, the ring 9 is in the contracted state, and the airbag 12 seals the anus.

[0025] Compared with the syringe in the prior art, the enema device provided by the present invention uses the expansion and contraction of the ring 9 and the air bag 12 to alternately seal the anus. In the process of keeping the anus in a sealed state, the ring 9 and the air bag 12 are intermittently separated from the inner wall of the intestine. The separation process can not only provide a period of recovery time for the intestine in a taut state, but also effectively prevent the adhesion of the intestinal mucosa due to long-term contact, thereby preventing the mucosal tearing during the process of removing the enema device from the anus.

[0026] like Figure 2-Figure 7 As shown, the driving mechanism includes a driving structure, a first transmission structure and a second transmission structure. The driving structure drives the ring 9 to deform through the first transmission structure, and the driving structure drives the airbag 12 to deform through the second transmission structure, wherein:

[0027] like Figure 3-Figure 5 As shown, the driving structure includes a rotating tube 6, in which a turbine 27 is fixedly connected. One end of the rotating tube 6 is rotatably installed in the connecting member 3, and the other end is rotatably installed in the shell 4 and an incomplete end face gear 17 is fixedly connected to the outer wall. A plurality of mounting plates 26 are fixedly connected inside the shell 4, and the mounting plates 26 correspond to the connecting rods 5 one by one. A rotating shaft 19 is rotatably installed on the mounting plate 26, and one end of the rotating shaft 19 is fixedly connected to a driven gear 18, and the other end is fixedly connected to an incomplete gear 20, and the driven gear 18 cooperates with the incomplete end face gear 17. A spring 28 is provided on the mounting plate 26, and one end of the spring 28 is fixedly connected to the rotating shaft 19, and the other end is fixedly connected to the mounting plate 26.

[0028] During the process of infusing the drug solution into the intestine, the drug solution flows through the inside of the rotating tube 6. Since a turbine 27 is provided inside the rotating tube 6, the drug solution flowing through the inside of the rotating tube 6 will drive the turbine 27 to rotate. The rotation of the turbine 27 will drive the rotating tube 6 to rotate synchronously. During the rotation of the rotating tube 6, the incomplete end face gear 17 will be driven to rotate synchronously. Since the incomplete end face gear 17 is meshed with the driven gear 18, the driven gear 18 will be driven to rotate intermittently during the rotation of the incomplete end face gear 17. The rotation of the driven gear 18 will drive the incomplete gear 20 to rotate through the rotating shaft 19.

[0029] like Figure 5 and Figure 6 As shown, the first transmission structure includes a first rack 11, a second rack 10 and an internally threaded tube 15. The first rack 11 is fixedly connected to the first slide 7, the second rack 10 is fixedly connected to the second slide 8, a pinion 13 is rotatably mounted on the connecting rod 5, both the first rack 11 and the second rack 10 are matched with the pinion 13, the internally threaded tube 15 is rotatably mounted on the inner wall of the housing 4, a driven end face gear 16 is coaxially fixedly connected to the end face of the internally threaded tube 15, the driven end face gear 16 matches the incomplete gear 20, the internal thread of the internally threaded tube 15 is matched with a first screw 14, and one end of the first screw 14 is fixedly connected to the end of the first rack 11.

[0030] During the rotation of the incomplete gear 20, the driven end face gear 16 will be driven to rotate intermittently. The rotation of the driven end face gear 16 will drive the internal threaded tube 15 to rotate synchronously. Since the first screw 14 is threadedly matched with the internal threaded tube 15 and the first screw 14 cannot rotate, the first screw 14 will be driven to make linear motion along the axial direction during the rotation of the internal threaded tube 15.

[0031] During the process of the first screw 14 making linear motion along the axial direction, the first screw 14 will drive the first rack 11 to make linear motion, and the linear motion of the first rack 11 will drive the second rack 10 to make linear motion through the pinion 13, and the movement directions of the first rack 11 and the second rack 10 are opposite. Therefore, during the process of the first screw 14 driving the first rack 11 to make linear motion, the second rack 10 will also make linear motion, and the movement directions of the two remain opposite at all times.

[0032] Since the first slide plate 7 is fixedly connected to the first rack 11, and the second slide plate 8 is fixedly connected to the second rack 10, the distance between the first slide plate 7 and the second slide plate 8 increases or decreases during the linear motion of the first rack 11 and the second rack 10, wherein:

[0033] When the distance between the first slide plate 7 and the second slide plate 8 decreases, the first slide plate 7 and the second slide plate 8 will make the two end faces of the ring 9 approach each other. After the two end faces of the ring 9 approach each other, the outer circle of the ring 9 will expand outward, so that the ring 9 is in an expanded state.

[0034] When the distance between the first slide plate 7 and the second slide plate 8 increases, the first slide plate 7 and the second slide plate 8 will move the two end faces of the ring 9 away from each other. After the two end faces of the ring 9 move away from each other, the outer ring part of the ring 9 will collapse inward, so that the ring 9 is in a contracted state.

[0035] like Figure 5 and Figure 6 The second transmission structure includes a cylinder body 23 and a transmission gear 22. The transmission gear 22 is rotatably mounted on the mounting plate 26. A nut seat 25 is fixedly connected to the end face of the transmission gear 22. The internal thread of the nut seat 25 is matched with the second screw rod 21. A piston 24 is fixedly connected to the end of the second screw rod 21. The cylinder body 23 is fixedly connected to the inner wall of the shell 4. The cylinder body 23 is connected to the airbag 12. The piston 24 is slidably matched in the cylinder body 23.

[0036] During the rotation of the incomplete gear 20, the transmission gear 22 will rotate intermittently, and the rotation of the transmission gear 22 will drive the nut seat 25 to rotate. Since the second screw rod 21 is threadedly matched with the nut seat 25 and the second screw rod 21 cannot rotate, the second screw rod 21 will be driven to make a linear motion along the axial direction during the rotation of the nut seat 25. During the linear motion of the second screw rod 21, the piston 24 will be driven to slide in the cylinder body 23, so that the internal air pressure of the cylinder body 23 increases or decreases, wherein:

[0037] When the air pressure in the cylinder 23 increases, since the airbag 12 is connected to the cylinder 23 , the air pressure in the airbag 12 will increase synchronously. After the air pressure in the airbag 12 increases, it will expand outward, causing the airbag 12 to enter an expanded state.

[0038] When the air pressure in the cylinder 23 decreases, since the airbag 12 is connected to the cylinder 23 , the air pressure in the airbag 12 will decrease synchronously. After the air pressure in the airbag 12 decreases, the airbag 12 will shrink inward, causing the airbag 12 to enter a contracted state.

[0039] Working principle and workflow:

[0040] When performing enema, the syringe is connected to the connector 2 through a slender hose, and the cannula 1 is inserted into the intestine from the patient's anus until the ring 9 and the air bag 12 enter the anus. During the process of the cannula 1 entering the intestine, the ring 9 and the air bag 12 are both in a contracted state, thereby preventing the ring 9 and the air bag 12 from rubbing against the intestine and causing anal tearing during the process of entering the intestine due to their large volume.

[0041] After the ring 9 and the airbag 12 enter the intestine, the syringe inputs enema solution into the connector 2 through the hose, and the solution in the connector 2 is injected into the intestine through the cannula 1 to administer the drug to the intestine. Since the airbag 12 is in an expanded state in the initial state, the airbag 12 will seal the anus after entering the intestine to prevent the fluid in the intestine from leaking out from the anus.

[0042] During the process of infusing the medicine into the intestine, the medicine flows through the inside of the rotating tube 6. Since a turbine 27 is provided inside the rotating tube 6, the medicine flowing through the inside of the rotating tube 6 will drive the turbine 27 to rotate. The rotation of the turbine 27 will drive the rotating tube 6 to rotate synchronously. During the rotation of the rotating tube 6, the incomplete end face gear 17 will be driven to rotate synchronously. Since the incomplete end face gear 17 is meshed with the driven gear 18, during the rotation of the incomplete end face gear 17, the driven gear 18 will be driven to rotate intermittently and the clockwork 28 will be charged. The rotation of the driven gear 18 will drive the incomplete gear 20 to rotate through the rotating shaft 19.

[0043] The steps of the rotation process of the incomplete gear 20 are as follows:

[0044] S1: The incomplete gear 20 first drives the driven end face gear 16 to rotate, and the rotation of the driven end face gear 16 drives the internal threaded tube 15 to rotate synchronously. The rotation of the internal threaded tube 15 drives the first screw 14 to move linearly. The first screw 14 reduces the distance between the first slide 7 and the second slide 8 through the cooperation of the first rack 11, the second rack 10 and the pinion 13. At this time, the first slide 7 and the second slide 8 will make the two end faces of the ring 9 approach each other. After the two end faces of the ring 9 approach each other, the outer circle of the ring 9 will expand outward, so that the ring 9 is in an expanded state to seal the anus.

[0045] S2: When the first screw rod 14 moves linearly to the maximum distance, the incomplete gear 20 is separated from the driven end face gear 16. After the incomplete gear 20 and the driven end face gear 16 are separated, the incomplete gear 20 starts to drive the transmission gear 22 to rotate.

[0046] S3: The rotation of the transmission gear 22 will drive the nut seat 25 to rotate. The nut seat 25 drives the piston 24 to slide in the cylinder 23 through the second screw 21 to reduce the internal air pressure of the cylinder 23. Since the airbag 12 is connected to the cylinder 23, the air pressure in the airbag 12 will decrease synchronously. After the air pressure in the airbag 12 is reduced, it will shrink inward, so that the airbag 12 is in a contracted state, separating the airbag 12 from the intestinal mucosa to prevent the mucosa from adhering to the surface of the airbag 12.

[0047] S4: When the second screw 21 moves to the maximum distance, the incomplete gear 20 is separated from the transmission gear 22. After the incomplete gear 20 is separated from the transmission gear 22, and before the incomplete gear 20 begins to contact the driven end face gear 16 again, the incomplete end face gear 17 is separated from the driven gear 18.

[0048] S5: After the incomplete end face gear 17 is separated from the driven gear 18, the incomplete end face gear 17 idles, and the incomplete gear 20 reverses under the drive of the mainspring 28.

[0049] S6: During the reversal of the incomplete gear 20, the incomplete gear 20 first contacts the transmission gear 22 and drives the transmission gear 22 to reverse. The reversal of the transmission gear 22 will drive the nut seat 25 to reverse. The reversal of the nut seat 25 will cause the second screw 21 to drive the piston 24 to reset in the cylinder 23. After the piston 24 is reset, the internal air pressure of the cylinder 23 increases, causing the airbag 12 to expand again and seal the anus.

[0050] S7: After the airbag 12 is inflated again, the incomplete gear 20 is separated from the transmission gear 22. After the incomplete gear 20 is separated from the transmission gear 22, it begins to contact the driven end face gear 16 and drives the driven end face gear 16 to reverse.

[0051] S8: After the driven end face gear 16 is reversed, it will drive the first screw 14 to move in the opposite direction. The first screw 14 increases the distance between the first slide 7 and the second slide 8 through the cooperation of the first rack 11, the second rack 10 and the pinion 13. At this time, the first slide 7 and the second slide 8 will make the two end faces of the ring 9 move away from each other. After the two end faces of the ring 9 move away from each other, the outer ring part of the ring 9 will collapse inward and reset, so that the ring 9 is in a contracted state.

[0052] S9: After the ring 9 is reset, the incomplete end face gear 17 drives the driven gear 18 to rotate again, and the above steps S1-S8 are repeated until the liquid medicine perfusion is completed.

[0053] 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An enema device, characterized in that: The invention comprises a cannula (1), a joint (2) and a plurality of connecting rods (5), wherein the output end of the cannula (1) is used for inserting into the anus, the input end of the cannula (1) is fixedly connected to a circular connecting piece (3), the input end of the joint (2) is connected to a syringe, the output end of the joint (2) is fixedly connected to a circular shell (4), the connecting rod (5) is located between the connecting piece (3) and the shell (4), one end of the connecting rod (5) is vertically fixedly connected to the end surface of the connecting piece (3), and the other end of the connecting rod (5) is vertically fixedly connected to the end surface of the connecting piece (3). On the end surface of the shell (4), a first annular slide plate (7) is slidably fitted inside the connecting member (3), a second annular slide plate (8) is slidably fitted inside the shell (4), a ring member (9) made of an annular silicone material is provided between the first slide plate (7) and the second slide plate (8), an annular air bag (12) is fixedly connected to the outer wall of the shell (4), and a driving mechanism is provided inside the shell (4) to drive the ring member (9) and the air bag (12) to intermittently deform when the syringe administers the drug.

2. The enema device according to claim 1, characterized in that: The driving mechanism comprises a driving structure, a first transmission structure and a second transmission structure. The driving structure drives the ring (9) to deform through the first transmission structure, and the driving structure drives the airbag (12) to deform through the second transmission structure.

3. The enema device according to claim 2, characterized in that: The driving structure comprises a rotating tube (6), a turbine (27) is fixedly connected inside the rotating tube (6), one end of the rotating tube (6) is rotatably mounted inside the connecting member (3), and the other end is rotatably mounted inside the housing (4) and an incomplete end face gear (17) is fixedly connected to the outer wall thereof, a plurality of mounting plates (26) are fixedly connected inside the housing (4), the mounting plates (26) correspond to the connecting rods (5) one by one, a rotating shaft (19) is rotatably mounted on the mounting plates (26), one end of the rotating shaft (19) is fixedly connected to a driven gear (18), and the other end is fixedly connected to an incomplete gear (20), the driven gear (18) cooperates with the incomplete end face gear (17), a spring (28) is provided on the mounting plate (26), one end of the spring (28) is fixedly connected to the rotating shaft (19), and the other end is fixedly connected to the mounting plate (26).

4. The enema device according to claim 3, characterized in that: The first transmission structure comprises a first rack (11), a second rack (10) and an internally threaded tube (15); the first rack (11) is fixedly connected to the first slide plate (7); the second rack (10) is fixedly connected to the second slide plate (8); a pinion (13) is rotatably mounted on the connecting rod (5); both the first rack (11) and the second rack (10) are matched with the pinion (13); the internally threaded tube (15) is rotatably mounted on the inner wall of the housing (4); a driven end face gear (16) is coaxially fixedly connected to the end face of the internally threaded tube (15); the driven end face gear (16) matches the incomplete gear (20); the internal thread of the internally threaded tube (15) is matched with a first screw (14); one end of the first screw (14) is fixedly connected to the end of the first rack (11).

5. The enema device according to claim 3 or 4, characterized in that: The second transmission structure comprises a cylinder body (23) and a transmission gear (22); the transmission gear (22) is rotatably mounted on a mounting plate (26); a nut seat (25) is fixedly connected to the end face of the transmission gear (22); the internal thread of the nut seat (25) is matched with a second screw rod (21); a piston (24) is fixedly connected to the end of the second screw rod (21); the cylinder body (23) is fixedly connected to the inner wall of the housing (4); the cylinder body (23) is connected to the air bag (12); and the piston (24) is slidably matched in the cylinder body (23).

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