Leakage-proof colorectal administration device

Abstract

The invention relates to the technical field of colorectal administration, in particular to a leakage-proof colorectal administration device which comprises a material pushing assembly, an anti-seepage assembly arranged on the material pushing assembly and a quantity-control liquid discharging assembly installed on the anti-seepage assembly, heat supply assemblies are installed in the material pushing assembly and the quantity-control liquid discharging assembly, and the heat supply assemblies penetrate into the anti-seepage assembly; the material pushing assembly comprises a tail end cushion piece. The anti-seepage assembly comprises an external end head installed at the inner end of the tail end cushion piece, by reducing the size of the dosing tool, after the volume-controlled liquid discharging assembly and the anti-seepage assembly are fed into the colorectum in a barrier-free mode, the compression balloon is inflated till the compression balloon is expanded and matched with the inner wall of the colorectum, and at the moment, the anti-seepage assembly is connected with the external end head. By means of the compression balloon, the area of stimulation to the colorectum can be reduced through the expansion area of the compression balloon, effective anti-overflow protection is provided for feeding of liquid medicine, meanwhile, the soft compression balloon can change according to the contraction change of the colorectum mucosa wall, and therefore the anti-overflow protection after medicine feeding is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of colorectal drug delivery, in particular to a leak-proof colorectal drug delivery device. Background Art

[0002] Colorectal drug administration refers to a method of delivering drugs into the intestine through the anus, where they are rapidly absorbed by the rectal mucosa into the general circulation to exert their efficacy in treating systemic or local diseases.

[0003] At present, colorectal drug delivery tools have many disadvantages during actual use. The most important one is that in order to avoid the overflow of the drug solution in the colorectum, the volume of the drug delivery tool is relatively large. Even if the surface of the drug delivery tool is coated with lubricating drug solution, the large volume of the drug delivery tool will still cause irritation to the patient's colorectum, and the pain will be aggravated. At the same time, as the drug delivery tool is exposed to the environment for a longer time, the tool will lose temperature, which will increase the tingling sensation in the patient's colorectum. On the other hand, even if the drug delivery tool is successfully delivered into the patient's colorectum, the drug solution that cannot be controlled in pressure will cause damage to the patient's colorectal mucosa at the moment of squeezing out.

[0004] In view of this, a leak-proof colorectal drug delivery device is designed to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] To this end, the technical solution adopted in the present invention is: A leak-proof colorectal medication device comprises a pushing assembly, an anti-seepage assembly arranged on the pushing assembly, and a volume control and liquid discharge assembly installed on the anti-seepage assembly, wherein a heating assembly is installed in the pushing assembly and the volume control and liquid discharge assembly, and the heating assembly penetrates into the anti-seepage assembly; the pushing assembly comprises a tail end pad; the anti-seepage assembly comprises an external end head installed at the inner end of the tail end pad, the interior of the external end head is provided with a plurality of air holes, and the inner end of the external end head is provided with a first annular groove, a compression balloon clamped in the first annular groove, a beam tube adapted to fit the inner end of the external end head, inserted into the beam tube and fixed Multiple bolts fixed on the external end head are adapted to compress the sealing gasket between the external end head and the beam tube, and are installed on the built-in end head at the other end of the beam tube. The inner end of the built-in end head is provided with a second annular groove, and the other end of the compression balloon is clamped in the second annular groove, and a main screw hole is provided in the middle of the built-in end head; a material guide hole is provided inside the beam tube, and an air hole is provided on the inner wall of the beam tube, and a plurality of evenly distributed circular holes are provided on the outer wall of the beam tube; the controlled liquid discharge component includes two transfer covers installed in the built-in end head, and the other end of the transfer cover is provided with a secondary screw hole and two ball covers installed in the secondary screw hole.

[0007] In a preferred embodiment, the present invention can be further configured as follows: a preheating chamber is provided inside the transfer cover, and a second hopper is fixedly installed inside the preheating chamber; The heating assembly includes a conductor fixedly installed in the middle of the preheating chamber, a heating plate installed on the conductor and located in the preheating chamber, and a connector fixedly installed at the other end of the conductor.

[0008] In a preferred embodiment, the present invention can be further configured as follows: a cylindrical cavity is formed in the middle of the spherical cover, and two drainage cavities and two diversion cavities are formed inside the spherical cover, and the diversion cavity is connected to the drainage cavity, and the diversion cavity is connected to the cylindrical cavity. A limit ring is fixedly installed inside the cylindrical cavity, a main plug is arranged inside the cylindrical cavity and affixed to one side of the limit ring, a plurality of guide rods are fixedly installed on one side of the main plug, and a spring is fixedly connected to the other side of the main plug, and the other end of the spring is adapted to bear pressure on the inner wall of the secondary screw hole; The end surface of the ball cover is provided with multiple evenly distributed liquid outlet holes, and multiple guide rods are adapted to be inserted into the multiple liquid outlet holes; Two symmetrically distributed first clamps and a first sliding piece fixedly installed on the outside of the first clamps are fixedly installed on both sides of the main plug; The drainage cavity is provided with a secondary plug movably mounted therein, a second clamp fixedly mounted thereon, and a second sliding piece fixedly mounted outside the second clamp; The interior of the ball cover is provided with two rectangular grooves, two clamps fixedly mounted on the inner walls of the rectangular grooves, a guide wheel movably mounted between the two clamps, and a traction rope connected to the second clamp and the first clamp, wherein the traction rope bears pressure on the guide wheel; The inner wall of the rectangular groove is provided with an inner slide, and the outer wall of the rectangular groove is provided with an outer slide. The first chuck is movably installed in the inner slide, and the first slide is adapted to fit on the inner slide. The second chuck is movably installed in the outer slide, and the second slide is adapted to fit on the outer slide.

[0009] In a preferred embodiment of the present invention, the configuration may be further as follows: a transverse hole connected to the material guide hole is opened in the middle of the external end head, and the main screw hole is connected to the material guide hole; The anti-seepage component further includes four protective covers, with two protective covers forming a group, and the two groups of protective covers are respectively plugged into the external terminal and the internal terminal; The protective cover is made of silicone material, and a cleaning slot is opened on the inner wall of the protective cover.

[0010] In a preferred embodiment of the present invention, the pusher assembly may further include a material tube fixedly mounted on the outer end of the external end head, with the inner end of the material tube inserted into the transverse hole, a plurality of inner pads fixedly mounted on the outside of the material tube, a rubber hose sleeved on the outside of the plurality of inner pads, with the inner end of the rubber hose fixedly mounted on the external end head, and a gap between the material tube and the rubber hose communicating with the air hole; A plug is installed at the other end of the gap between the rubber hose and the material pipe, and a guide tube is fixedly installed on the plug, and the plug is fixedly installed on the material pipe.

[0011] In a preferred embodiment of the present invention, the pusher assembly may further include two support plates fixedly mounted on an end of the material pipe away from the external end, a sealing cover mounted on the threaded section of the material pipe, and a plug rod movably mounted inside the sealing cover and inserted into the inner cavity of the material pipe; A transverse groove is provided inside the plug rod.

[0012] In a preferred example, the present invention can be further configured as follows: a drug injection tube is fixedly mounted on the outer wall of the material tube, and the inner cavity of the drug injection tube is connected to the inner cavity of the material tube for inputting the drug solution.

[0013] In a preferred example, the present invention can be further configured as follows: a through hole is formed in the plug at the inner end of the plug rod, the conductor is adapted to pass through the outside of the through hole, and the connector is movably installed in the transverse groove.

[0014] In a preferred example, the present invention can be further configured as follows: the pushing assembly also includes a first hopper fixedly installed in the inner cavity of the material tube, and the interior of the first hopper is provided with a funnel-shaped groove adapted to fit the plug at the inner end of the plug rod.

[0015] In a preferred example, the present invention can be further configured as follows: the end of the protective cover facing the compression balloon has an arc-shaped structure, which is used to improve the smoothness of the device entering and exiting the colorectum and avoid damage to the colorectal mucosa.

[0016] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows: 1. The present invention reduces the volume of the drug delivery tool. After the controlled liquid discharge component and the anti-seepage component are unimpededly delivered into the colorectal interior, the compression balloon is inflated until the compression balloon expands and fits the inner wall of the colorectal rectum. At this time, the expanded area of the compression balloon can reduce the area of colorectal irritation and provide effective anti-overflow protection for the delivery of the drug solution. At the same time, the soft compression balloon can change according to the contraction of the colorectal mucosal wall, thereby improving the anti-overflow protection after drug delivery.

[0017] 2. The present invention arranges a heating component in the cavity where the quantity-controlled liquid-discharging component and the anti-overflow component transfer the liquid medicine. When the heating component is powered on and releases heat, the liquid medicine that first fills the cavity will be heated and maintained at a constant temperature. The heat energy radiated by the liquid medicine will act on the quantity-controlled liquid-discharging component and the anti-overflow component. Even if the drug delivery tool is exposed to the environment for a longer period of time, it will not suffer from hypothermia.

[0018] 3. The present invention provides a spherical cover and opens liquid outlet holes with uniform distribution and fine pore size on the end surface of the spherical cover. When the auxiliary plug is pushed open by the liquid medicine under pressure, the insulated liquid medicine will be output through the drainage cavity and the diversion cavity, and will eventually be squeezed out from the liquid outlet holes. The gently squeezed liquid medicine will reduce the irritation to the colorectal mucosa. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the present invention when in use; Figure 2 It is a bottom view schematic diagram of the present invention; Figure 3 This is an exploded schematic diagram of the pusher assembly of the present invention; Figure 4 It is a partial schematic diagram of the present invention; Figure 5 For the present invention Figure 4 Explosion diagram of Figure 6 Schematic diagram of explosion of the anti-seepage component of the present invention; Figure 7 For the present invention Figure 6 A magnified schematic diagram of point A in the middle; Figure 8 Schematic cross-sectional view of the external terminal and the internal terminal of the present invention; Figure 9 Schematic diagram of the explosion of the controlled liquid discharge component of the present invention; Figure 10 This is a schematic diagram of the explosion of the ball cover of the present invention; Figure 11 For the present invention Figure 10 Enlarged schematic diagram of point B in the middle.

[0020] Reference numerals: 100, pusher assembly; 110, feed pipe; 1101, inner pad; 1102, hose; 1103, tail end pad; 1104, first hopper; 1105, support plate; 1106, injection tube; 120, plug; 1201, guide tube; 130, cover; 140, plug rod; 1401, transverse groove; 200, heating component; 210, connector; 220, conductor; 230, heating plate; 300, anti-seepage component; 310, external terminal; 3101, first annular groove; 3102, transverse hole; 3103, air hole; 320, internal terminal; 3201, main screw hole; 3202, second annular groove; 330, protective cover; 340, sealing gasket; 350, beam tube; 3501, material guide hole; 3502, circular hole; 3503, bolt; 360, compression balloon; 400, controlled liquid discharge assembly; 410, transfer cover; 4101, auxiliary screw hole; 4102, preheating chamber; 420, second hopper; 430, spherical cover; 4301, cylindrical chamber; 4302, drainage chamber; 4303, diversion chamber; 4304, liquid outlet; 4305, rectangular groove; 4306, inner slide; 4307, outer slide; 440, spring; 450, main plug; 4501, first chuck; 4502, first slide; 4503, guide rod; 460, limiting ring; 470, auxiliary plug; 4701, second chuck; 4702, second slide; 480, clamp; 4801, guide wheel; 4802, traction rope. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other without conflict.

[0022] It is to be understood that these descriptions are illustrative only and are not intended to limit the scope of the invention.

[0023] A leakage-proof colorectal drug delivery device provided by some embodiments of the present invention will be described below with reference to the accompanying drawings.

[0024] Example 1: Combine Figures 1 to 11 As shown, the present invention provides a leakage-proof colorectal drug delivery device, which includes a pushing component 100, an anti-seepage component 300 arranged on the pushing component 100, and a volume control and liquid discharge component 400 installed on the anti-seepage component 300, and a heating component 200 is installed in the pushing component 100 and the volume control and liquid discharge component 400, and the heating component 200 penetrates into the anti-seepage component 300, the pushing component 100 is used to increase the feeding depth of the anti-seepage component 300 and the volume control and liquid discharge component 400 to provide support, the heating component 200 is used to heat the drug solution and the anti-seepage component 300 and the volume control and liquid discharge component 400, the anti-seepage component 300 is used to seal the colorectum, and the volume control and liquid discharge component 400 is used for gentle drug delivery.

[0025] The pusher assembly 100 includes a tail end pad 1103; The anti-seepage component 300 includes an external terminal 310 installed at the inner end of the tail end gasket 1103, the external terminal 310 is provided with a plurality of air holes 3103 inside, and the inner end of the external terminal 310 is provided with a first annular groove 3101, a compression balloon 360 clamped in the first annular groove 3101, a beam tube 350 adapted to fit the inner end of the external terminal 310, a plurality of bolts 3503 inserted in the beam tube 350 and fixed on the external terminal 310, a sealing gasket 340 adapted to be compressed between the external terminal 310 and the beam tube 350, an internal terminal 320 installed at the other end of the beam tube 350, a second annular groove 3202 is provided at the inner end of the internal terminal 320, and the other end of the compression balloon 360 is clamped in the second annular groove 3202, and a main screw hole 3201 is provided in the middle of the internal terminal 320; The beam tube 350 has a material guide hole 3501 formed inside, an air hole formed on the inner wall of the beam tube 350, and a plurality of evenly distributed circular holes 3502 formed on the outer wall of the beam tube 350. A transverse hole 3102 is formed in the middle of the external end 310 and is connected to the material guide hole 3501. The main screw hole 3201 is connected to the material guide hole 3501. The anti-seepage component 300 further includes four protective covers 330 , and two protective covers 330 form a group, and the two groups of protective covers 330 are respectively plugged into the external terminal 310 and the internal terminal 320 ; The protective cover 330 is made of silicone material, and the inner wall of the protective cover 330 is provided with a cleaning slot; The end of the protective cover 330 facing the compression balloon 360 is in an arc-shaped structure, which is used to improve the smoothness of the device entering and exiting the colorectal cavity and avoid damage to the colorectal mucosa; The pusher assembly 100 further includes a material tube 110 fixedly mounted on the outer end of the external end 310, with the inner end of the material tube 110 inserted into the transverse hole 3102, a plurality of inner pads 1101 fixedly mounted on the outside of the material tube 110, and a rubber hose 1102 sleeved on the outside of the plurality of inner pads 1101, with the inner end of the rubber hose 1102 fixedly mounted on the external end 310, and the gap between the material tube 110 and the rubber hose 1102 communicating with the air hole 3103; The controlled liquid discharge assembly 400 includes two transfer covers 410 installed in the internal terminal 320 , and the other end of the transfer cover 410 is provided with a secondary screw hole 4101 and two ball covers 430 installed in the secondary screw hole 4101 .

[0026] The anti-seepage component 300 and the controlled-volume liquid-discharging component 400 are delivered toward the patient's affected area through the control tube 110. After the pushing component 100 pushes the anti-seepage component 300 and the controlled-volume liquid-discharging component 400 into the designated position inside the colorectum, the external spherical air cylinder is plugged into the pushing component 100. The spherical air cylinder is then pressed. As the air flow continues to flow in, the compression balloon 360 expands outward within the gap between the two sets of protective covers 330. After expansion, the compression balloon 360 blocks the colorectal drug delivery area. After inflation, the compression balloon 360 changes accordingly with the contraction of the colorectum. At this time, the drug delivery device can reduce the stinging sensation to the patient's colorectum and will not cause chain damage to the colorectum.

[0027] Example 2: Combine Figure 3 、 Figure 4 as well as Figure 9 As shown, based on Example 1, a preheating chamber 4102 is opened inside the transfer cover 410, and a second hopper 420 is fixedly installed inside the preheating chamber 4102; The heating assembly 200 includes a conductor 220 fixedly installed in the middle of the preheating chamber 4102, a heating plate 230 installed on the conductor 220 and located in the preheating chamber 4102, and a connector 210 fixedly installed at the other end of the conductor 220.

[0028] Preferably, the joint 210 is composed of a conductor and a ceramic sleeve, and the ceramic sleeve is used to provide waterproof protection for the conductor. At the same time, the ceramic sleeve can also provide effective and stable support for the free extension and contraction of the plug rod 140.

[0029] Example 3: Combine Figures 9 to 11 As shown, based on Example 1, a cylindrical cavity 4301 is opened in the middle of the spherical cover 430, and two drainage cavities 4302 and two diversion cavities 4303 are opened inside the spherical cover 430, and the diversion cavity 4303 is connected to the drainage cavity 4302, and the diversion cavity 4303 is connected to the cylindrical cavity 4301. A limit ring 460 is fixedly installed inside the cylindrical cavity 4301, a main plug 450 is arranged inside the cylindrical cavity 4301 and affixed to one side of the limit ring 460, a plurality of guide rods 4503 are fixedly installed on one side of the main plug 450, and a spring 440 is fixedly connected to the other side of the main plug 450, and the other end of the spring 440 is adapted to bear pressure on the inner wall of the secondary screw hole 4101; The end surface of the ball cover 430 is provided with multiple evenly distributed liquid outlet holes 4304, and multiple guide rods 4503 are adapted to be inserted into the multiple liquid outlet holes 4304; Two symmetrically distributed first clamps 4501 and a first sliding piece 4502 fixedly installed on the outside of the first clamps 4501 are fixedly installed on both sides of the main plug 450; A secondary plug 470 is movably mounted in the drainage cavity 4302 , a second clamp 4701 is fixedly mounted on the secondary plug 470 , and a second sliding piece 4702 is fixedly mounted on the outside of the second clamp 4701 ; The interior of the ball cover 430 is provided with two rectangular grooves 4305, two clamps 480 fixedly mounted on the inner walls of the rectangular grooves 4305, a guide wheel 4801 movably mounted between the two clamps 480, and a traction rope 4802 connected to the second clamp 4701 and the first clamp 4501, with the traction rope 4802 bearing pressure on the guide wheel 4801; An inner slide 4306 is provided on the inner wall of the rectangular groove 4305, and an outer slide 4307 is provided on the outer wall of the rectangular groove 4305. The first chuck 4501 is movably installed in the inner slide 4306, and the first slide 4502 is adapted to fit on the inner slide 4306. The second chuck 4701 is movably installed in the outer slide 4307, and the second slide 4702 is adapted to fit on the outer slide 4307.

[0030] Preferably, the side wall of the transfer cover 410 facing the ball cover 430 is an arc-shaped structure. Rubber layers are fixedly installed on the adjacent end surfaces of the two transfer covers 410 and the two ball covers 430 to provide overflow protection for the closed cavity. An annular groove is formed on the end surface of the transfer cover 410 facing the ball cover 430, and the two drainage cavities 4302 are connected to the annular groove. Two sealing rings are installed on the outside of the auxiliary plug 470 to enhance the sealing of the drainage cavity 4302; The traction rope 4802 is composed of a rope body and two ring buckles, and the two ring buckles are respectively installed inside the first clamp 4501 and the second clamp 4701; Specifically, in the initial state, that is, the main plug head 450 is attached to the limiting ring 460 , and at this time, the outer end of the guide rod 4503 is flush with the outer end of the liquid outlet 4304 .

[0031] Example 4: Combine Figure 3 and Figure 5 As shown, in the above embodiment, the pusher assembly 100 further includes two support plates 1105 fixedly mounted on the end of the material tube 110 away from the external end head 310, a cover 130 mounted on the threaded section of the material tube 110, and a plug rod 140 movably mounted inside the cover 130 and inserted into the inner cavity of the material tube 110, and a first hopper 1104 fixedly mounted in the inner cavity of the material tube 110, and a funnel-shaped groove is formed inside the first hopper 1104 to fit the plug at the inner end of the plug rod 140; A plug 120 is installed at the other end of the gap between the rubber hose 1102 and the material pipe 110, and a guide tube 1201 is fixedly installed on the plug 120. The plug 120 is fixedly installed on the material pipe 110; A transverse groove 1401 is formed inside the plug rod 140; A drug injection tube 1106 is fixedly mounted on the outer wall of the feed tube 110, and the inner cavity of the drug injection tube 1106 is connected to the inner cavity of the feed tube 110 for inputting the drug solution; A through hole is formed in the plug at the inner end of the plug rod 140 , and the conductor 220 is adapted to pass through the through hole, while the connector 210 is movably installed in the transverse groove 1401 .

[0032] Preferably, the inner pad 1101 is made of rubber material, the tail end pad 1103 is fixedly mounted on the outside of the hose 1102, and the conduit 1201 is a hose structure; Specifically, by pressing the outer end of the plug rod 140, the plug at the inner end of the plug rod 140 will move along the inner cavity of the material tube 110 toward the external end 310, and eventually the plug will squeeze the liquid medicine in the inner cavity of the material tube 110 into the material guide hole 3501. In order to prevent the liquid medicine from overflowing from between the material tube 110 and the plug due to excessive pressure, a rubber outer layer is fixedly installed on the plug at the inner end of the plug rod 140.

[0033] The working principle and use process of the present invention are as follows: the stopper rod 140 is pulled outward in advance until the plug at the inner end of the stopper rod 140 shrinks into the inner cavity of the cover 130. At this time, the inner cavity of the drug injection tube 1106 is connected with the inner cavity of the material tube 110. Then, the drug liquid is squeezed into the inner cavity of the material tube 110 along the drug injection tube 1106. During the squeezing of the drug liquid, it should be noted that the device needs to be vertically upward, that is, the stopper rod 140 is placed at the bottom and the ball cover 430 is facing upward. As the drug liquid continues to fill the inner cavity of the material tube 110, the material guide hole 3501, the preheating cavity 4102 and the two drainage cavities 4302, the air in the above cavities will squeeze the two auxiliary plugs 470 upward until the air enters the diversion cavity 4303 from the drainage cavity 4302, and finally the air is released along the liquid outlet 4304. After the cavity is filled with liquid medicine, stop injecting medicine into the injection tube 1106, then turn the device 180 degrees until the ball cover 430 is facing downward, then gently press the plug rod 140 until the plug at the inner end of the plug rod 140 blocks the inner port of the injection tube 1106, and then use a cotton ball to wipe the outer surface of the ball cover 430; During use, the cleaned device is placed horizontally according to the patient's supine position until the ball cover 430 is aligned with the patient's affected area. Then, the medical staff needs to hold the support plate 1105 and push the controlled liquid discharge component 400 and the anti-seepage component 300 along the affected area into the colorectum. As the controlled liquid discharge component 400 and the anti-seepage component 300 are continuously pushed along the colorectum, the conductor 220 is used to supply energy to the heating plate 230 until the heating plate 230 preheats the liquid medicine in the preheating cavity 4102. As the preheating continues, the liquid medicine filled in the above cavity will maintain constant heat energy, and eventually the heat energy will be radiated to the ball cover 430, the transfer cover 410 and the anti-seepage component 300. Since the initial volume of the controlled liquid discharge component 400 and the anti-seepage component 300 is small, the stimulation to the patient's colorectum is minimal, and the patient's resistance is low. After the ball cover 430 moves to the designated position in the patient's colorectum, the existing spherical inflator is connected to the catheter 1201. Then the medical staff needs to press the spherical inflator according to the amount of medication. As the gas enters the gap between the hose 1102 and the material tube 110 along the plug 120, the continuously supplied gas will enter the gap between the beam tube 350 and the compression balloon 360 along the air hole 3103. As the amount of gas supplied to the gap between the beam tube 350 and the compression balloon 360 continues to increase, the compression balloon 360 will eventually expand outward along the gap between the two sets of protective covers 330 until the compression balloon 360 fits the patient's colorectum and blocks the affected area of the colorectum after expansion. , then it is necessary to push the plug rod 140, and the medicine in the inner cavity of the material tube 110 will be pressurized into the other cavities, and finally the medicine will enter along the two drainage cavities 4302 and push open the auxiliary plug 470. As the auxiliary plug 470 extends outward, the main plug 450 and the guide rod 4503 linked by the traction rope 4802 will shrink toward the inside of the cylindrical cavity 4301, and the medicine will enter the small space between the main plug 450 and the cylindrical cavity 4301 along the drainage cavity 4302 and the diversion cavity 4303. Finally, the medicine will be squeezed out from multiple liquid outlets 4304 into the colorectum, and the force of squeezing out the medicine is gentle, thereby preventing the colorectum from being irritated by excessive force of squeezing out the medicine.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A leak-proof colorectal drug delivery device, comprising a pushing assembly (100), characterized in that: It also includes an anti-seepage component (300) arranged on the pushing component (100) and a volume control and liquid discharge component (400) installed on the anti-seepage component (300), and a heating component (200) is installed in the pushing component (100) and the volume control and liquid discharge component (400), and the heating component (200) penetrates into the anti-seepage component (300); The pusher assembly (100) includes a tail end pad (1103); The anti-seepage component (300) includes an external terminal (310) installed at the inner end of the tail end pad (1103), a plurality of air holes (3103) are provided inside the external terminal (310), and a first annular groove (3101) is provided at the inner end of the external terminal (310), a compression balloon (360) is clamped in the first annular groove (3101), and a beam tube (350) is adapted to fit the inner end of the external terminal (310), inserted in the beam tube (350) and fixed on the outer A plurality of bolts (3503) on the external end head (310) are adapted to be compressed by a sealing gasket (340) between the external end head (310) and the beam tube (350), and an internal end head (320) is installed at the other end of the beam tube (350), wherein a second annular groove (3202) is provided at the inner end of the internal end head (320), and the other end of the compression balloon (360) is clamped in the second annular groove (3202), and a main screw hole (3201) is provided in the middle of the internal end head (320); The beam tube (350) is provided with a material guide hole (3501) inside, and the inner wall of the beam tube (350) is provided with air holes, while the outer wall of the beam tube (350) is provided with a plurality of evenly distributed circular holes (3502); The controlled liquid discharge assembly (400) comprises two transfer covers (410) installed in the built-in end head (320), and the other end of the transfer cover (410) is provided with a secondary screw hole (4101) and two ball covers (430) installed in the secondary screw hole (4101).

2. The leak-proof colorectal drug delivery device according to claim 1, characterized in that: A preheating chamber (4102) is provided inside the transfer cover (410), and a second hopper (420) is fixedly installed inside the preheating chamber (4102); The heating assembly (200) comprises a conductor (220) fixedly mounted in the middle of the inner cavity of the preheating cavity (4102), a heating plate (230) mounted on the conductor (220) and located in the preheating cavity (4102), and a connector (210) fixedly mounted at the other end of the conductor (220).

3. The leak-proof colorectal drug delivery device according to claim 1, characterized in that: A cylindrical cavity (4301) is provided in the middle of the spherical cover (430), and two drainage cavities (4302) and two diversion cavities (4303) are provided inside the spherical cover (430), and the diversion cavity (4303) is connected to the drainage cavity (4302), and the diversion cavity (4303) is connected to the cylindrical cavity (4301), and a limiting ring (460) is fixedly installed inside the cylindrical cavity (4301), a main plug (450) is arranged inside the cylindrical cavity (4301) and is attached to one side of the limiting ring (460), a plurality of guide rods (4503) are fixedly installed on one side of the main plug (450), and a spring (440) is fixedly connected to the other side of the main plug (450), and the other end of the spring (440) is adapted to bear pressure on the inner wall of the auxiliary screw hole (4101); The end surface of the ball cover (430) is provided with a plurality of evenly distributed liquid outlet holes (4304), and a plurality of guide rods (4503) are adapted to be plugged into the plurality of liquid outlet holes (4304); Two symmetrically distributed first clamps (4501) and a first sliding piece (4502) fixedly mounted on the outside of the first clamps (4501) are fixedly mounted on both sides of the main plug (450); A secondary plug (470) is movably mounted in the drainage cavity (4302), a second clamp (4701) fixedly mounted on the secondary plug (470), and a second sliding piece (4702) fixedly mounted on the outside of the second clamp (4701); The ball cover (430) is provided with two rectangular grooves (4305) inside, two clamps (480) fixedly mounted on the inner wall of the rectangular grooves (4305), a guide wheel (4801) movably mounted between the two clamps (480), and a traction rope (4802) connected to the second clamp (4701) and the first clamp (4501), and the traction rope (4802) is pressed on the guide wheel (4801); The inner wall of the rectangular groove (4305) is provided with an inner slide (4306), and the outer wall of the rectangular groove (4305) is provided with an outer slide (4307). The first chuck (4501) is movably installed in the inner slide (4306), and the first slide (4502) is adapted to fit on the inner slide (4306). The second chuck (4701) is movably installed in the outer slide (4307), and the second slide (4702) is adapted to fit on the outer slide (4307).

4. The leak-proof colorectal drug delivery device according to claim 1, characterized in that: A transverse hole (3102) connected to the material guide hole (3501) is provided in the middle of the external end head (310), and the main screw hole (3201) is connected to the material guide hole (3501); The anti-seepage component (300) further includes four protective covers (330), with two protective covers (330) forming a group, and the two groups of protective covers (330) are respectively plugged into the external terminal (310) and the internal terminal (320); The protective cover (330) is made of a silicone material, and a cleaning slot is provided on the inner wall of the protective cover (330).

5. The leak-proof colorectal drug delivery device according to claim 1, characterized in that: The pushing assembly (100) further includes a material tube (110) fixedly mounted on the outer end of the external end head (310), wherein the inner end head of the material tube (110) is inserted into the transverse hole (3102), a plurality of inner pads (1101) fixedly mounted on the outside of the material tube (110), a rubber tube (1102) sleeved on the outside of the plurality of inner pads (1101), wherein the inner end of the rubber tube (1102) is fixedly mounted on the external end head (310), and a gap between the material tube (110) and the rubber tube (1102) is connected to the air hole (3103); A plug (120) is installed at the other end of the gap between the rubber hose (1102) and the material pipe (110), and a guide tube (1201) is fixedly installed on the plug (120). The plug (120) is fixedly installed on the material pipe (110).

6. The leak-proof colorectal drug delivery device according to claim 5, characterized in that: The pusher assembly (100) further comprises two support plates (1105) fixedly mounted on one end of the material tube (110) away from the external end head (310), a cover (130) mounted on the threaded section of the material tube (110), and a plug rod (140) movably mounted inside the cover (130) and inserted into the inner cavity of the material tube (110); A transverse groove (1401) is provided inside the plug rod (140), and the joint (210) is movably installed in the transverse groove (1401).

7. The leak-proof colorectal drug delivery device according to claim 5, characterized in that: A drug injection tube (1106) is fixedly mounted on the outer wall of the material tube (110), and the inner cavity of the drug injection tube (1106) is connected to the inner cavity of the material tube (110) for inputting the drug solution.

8. The leak-proof colorectal drug delivery device according to claim 6, characterized in that: A through hole is provided on the inner end plug of the plug rod (140), and the conductor (220) is adapted to pass through the outside of the through hole.

9. The leak-proof colorectal drug delivery device according to claim 1, characterized in that: The pushing assembly (100) further comprises a first hopper (1104) fixedly mounted in the inner cavity of the material tube (110), and a funnel-shaped groove adapted to fit the inner end plug of the plug rod (140) is provided inside the first hopper (1104).

10. The leak-proof colorectal drug delivery device according to claim 4, characterized in that: The end of the protective cover (330) facing the compression balloon (360) is in an arc-shaped structure, which is used to improve the smoothness of the device entering and exiting the colorectum and avoid damage to the colorectal mucosa.

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