Rectum perfusion administration device

Abstract

The invention discloses rectal perfusion dosing equipment, which relates to the technical field of medical instruments and comprises a mounting plate, fixing plates are symmetrically fixed at the top end of the mounting plate, and a dosing cylinder is clamped between the two fixing plates through a clamping mechanism; the automatic propelling mechanism drives the L-shaped push plate to move from right to left, so that the piston push rod drives the medicine pushing piston to move to the leftmost side in the administration cylinder, liquid medicine in the administration cylinder can be injected into the rectum of a patient from the rubber administration catheter at a constant speed, and constant-speed administration can be achieved; electric heating plates are arranged in arc-shaped cover plates on the outer walls of the two sides of the dosing cylinder, liquid medicine in the dosing cylinder can be preheated, in addition, the dosing cylinder is clamped at the top end of a mounting plate through a clamping mechanism, a piston push rod is positioned by inserting a spring telescopic piece into a penetrating hole, and meanwhile a cylinder cover is locked and fixed to the dosing cylinder through a locking mechanism. Therefore, the rectal perfusion administration device can be conveniently disassembled, and residual liquid medicine in the administration cylinder can be conveniently cleaned after use.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a rectal perfusion medication device. Background Art

[0002] Rectal administration is a method of delivering drugs into the intestine through the anus, using the rapid absorption of the rectal mucosa into the general circulation to treat systemic or local diseases. This method of administration can avoid the first-pass effect of oral administration, reduce the decomposition of drugs in the gastrointestinal tract, and improve the bioavailability of certain drugs. The rectal infusion drug delivery device is a medical device specifically used for rectal administration. It can help medical staff give drugs to patients through the rectum.

[0003] Most of the existing rectal infusion drug delivery devices have a single structure, and manual infusion is required for drug delivery. The degree of automation is low, and uniform drug delivery cannot be guaranteed, resulting in the inability of the drug solution to enter the patient's rectum at a uniform speed, thereby affecting the patient's comfort. In addition, the existing rectal infusion drug delivery devices cannot be easily disassembled, which is inconvenient to clean the residual drug solution inside the device after use, and is inconvenient to use. In addition, the existing rectal infusion drug delivery devices do not have a preheating function, resulting in the problem of too low temperature of the drug solution before it is infused into the patient's rectum, thereby bringing a bad infusion experience to the patient. Therefore, the present invention proposes a rectal infusion drug delivery device to solve the problems existing in the prior art. Summary of the invention

[0004] In view of the above problems, the purpose of the present invention is to propose a rectal infusion drug delivery device, which solves the problems that the existing rectal infusion drug delivery device needs to be manually operated for infusion during drug delivery, has a low degree of automation, cannot ensure uniform drug delivery, cannot be easily disassembled, and is not convenient for cleaning the residual drug solution inside the device after use, and does not have a preheating function.

[0005] In order to achieve the purpose of the present invention, the present invention is implemented through the following technical scheme: a rectal perfusion drug delivery device, including a mounting plate, a fixing plate is symmetrically fixed on the top of the mounting plate, a drug delivery barrel is clamped between two groups of the fixing plates through a clamping mechanism, the drug outlet of the drug delivery barrel is interference-fitted with a rubber drug delivery tube, the end of the drug delivery barrel away from the rubber drug delivery tube is sealed and connected with a barrel cover fixed by a locking mechanism, a drug pushing piston is slidably provided inside the drug delivery barrel, a piston push rod that slides through the barrel cover is fixed on the side of the drug pushing piston away from the rubber drug delivery tube, an L-shaped push plate that is driven to move by an automatic propulsion mechanism is slidably provided on the side of the top of the mounting plate away from the rubber drug delivery tube, a spring telescopic part is fixed on the top inner side of the L-shaped push plate, a through hole matching the spring telescopic part is opened on the piston push rod, an arc-shaped cover plate is symmetrically fixed to the outer wall of the drug delivery barrel, and an electric heating plate is fixed on the inner side of the arc-shaped cover plate.

[0006] A further improvement is that the clamping mechanism includes a first screw rod threaded through a fixed plate and a knob fixed to the end of the first screw rod away from the dosing barrel, the end of the first screw rod away from the knob is rotatably connected to an arc-shaped clamping plate, and a limiting mechanism is symmetrically connected between the arc-shaped clamping plate and the fixed plate.

[0007] A further improvement is that the limiting mechanism comprises a limiting tube fixedly connected to the fixing plate and a limiting rod fixedly connected to the arc-shaped clamping plate, and one end of the limiting rod away from the arc-shaped clamping plate is slidably disposed in the limiting tube.

[0008] A further improvement is that the locking mechanism comprises a threaded connection ring slidably sleeved on the outside of the barrel cover, and the outer wall of the dosing barrel close to the barrel cover is provided with an external thread matched with the threaded connection ring.

[0009] A further improvement is that a limiting convex ring is fixed on the outer wall of the cylinder cover, a limiting groove matched with the limiting convex ring is opened on the inner wall of the threaded connection ring, and the limiting convex ring extends into the limiting groove.

[0010] A further improvement is that an annular sealing groove is formed at one end of the barrel cover close to the dosing barrel, and a rubber sealing ring matched with the annular sealing groove is fixed at one end of the dosing barrel close to the barrel cover.

[0011] A further improvement is that the automatic propulsion mechanism includes a motor fixed to the outer wall of the mounting plate and a second screw rod rotatably connected to the inside of the mounting plate and driven to rotate by the motor, and the lower part of the L-shaped push plate slides through the inside of the mounting plate and is threadedly sleeved on the second screw rod.

[0012] A further improvement is that the spring telescopic member includes a telescopic rod fixed to the top inner side of the L-shaped push plate and a telescopic tube slidably sleeved on the outside of the telescopic rod, and a limit spring is fixedly connected between the bottom end of the telescopic rod and the bottom end of the telescopic tube.

[0013] A further improvement is that handles are fixed to the outer walls on both sides of the mounting plate, graduation lines are printed on the outer wall of the dosing barrel, and the end of the drug outlet of the dosing barrel is designed to be conical.

[0014] The beneficial effects of the present invention are as follows: the present invention drives the L-shaped push plate to move from right to left through the automatic propulsion mechanism, so as to drive the medicine pushing piston to move to the leftmost side of the drug delivery cylinder through the piston push rod, so that the medicine liquid in the drug delivery cylinder can be uniformly injected into the patient's rectum from the rubber drug delivery catheter, without the need for manual operation, saving time and effort, and achieving uniform drug delivery to ensure the comfort of the patient. In addition, by arranging electric heating plates in the arc-shaped cover plates on the outer walls of both sides of the drug delivery cylinder, the medicine liquid in the drug delivery cylinder can be preheated to make the temperature of the medicine liquid adapt to the human body temperature, avoiding the stimulation of the patient by the excessively low temperature of the medicine liquid, and improving the patient's experience. In addition, the drug delivery cylinder is clamped on the top of the mounting plate through the clamping mechanism, and the piston push rod is positioned by inserting the spring telescopic part into the through hole, and the cylinder cover is locked and fixed on the drug delivery cylinder through the locking mechanism, so that the rectal infusion drug delivery device can be conveniently disassembled, and then it is convenient to clean the residual medicine liquid in the drug delivery cylinder after use, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a top view of the present invention;

[0016] Figure 2 is a top cross-sectional view of the present invention;

[0017] Figure 3 The present invention Figure 2 A in the enlarged view;

[0018] Figure 4 is a front cross-sectional view of the present invention;

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the spring expansion member of the present invention;

[0020] Figure 6 It is a cross-sectional view of a spring expansion member of the present invention.

[0021] Among them: 1. Mounting plate; 2. Fixing plate; 3. Dosing cylinder; 4. Rubber dosing catheter; 5. Cylinder cover; 6. Medicine pushing piston; 7. Piston push rod; 8. L-shaped push plate; 9. Spring telescopic member; 10. Perforation; 11. Arc cover plate; 12. Heating plate; 13. First screw rod; 14. Knob; 15. Arc splint; 16. Limiting tube; 17. Limiting rod; 18. Threaded connecting ring; 19. Limiting convex ring; 20. Limiting groove; 21. Annular sealing groove; 22. Rubber sealing ring; 23. Motor; 24. Second screw rod; 25. Handle; 26. Scale line; 901. Telescopic rod; 902. Telescopic tube; 903. Limiting spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The present embodiment provides a rectal perfusion medication device, comprising a mounting plate 1 with a hollow interior and a fixing plate 2 fixed to the top right side of the mounting plate 1 by bolts, the fixing plates 2 are provided with two groups and are symmetrically distributed front to back, a medication tube 3 for storing medication liquid is provided between the two groups of fixing plates 2, and the medication tube 3 is clamped and fixed between the two groups of fixing plates 2 by a clamping mechanism, a medication outlet of the medication tube 3 is interference-fitted with a rubber medication tube 4 for docking with the patient's rectum, the end of the rubber medication tube 4 away from the medication tube 3 is arc-shaped and has evenly distributed medication outlet holes, a medication tube 3 is sealed and docked with a tube cover 5 at one end away from the rubber medication tube 4, and the tube cover 5 is fixed to the left end of the medication tube 3 by a locking mechanism, so as to seal the left end of the medication tube 3, a medication piston 6 made of rubber material is slidably provided inside the medication tube 3, and the medication piston 6 is away from the rubber medication tube 4 at one end A piston push rod 7 is fixed on the side, and the left end of the piston push rod 7 slides through the cylinder cover 5 and extends to the outside of the drug delivery cylinder 3. An L-shaped push plate 8 is slidably provided on the left side of the top of the mounting plate 1, and the L-shaped push plate 8 is driven by the automatic propulsion mechanism inside the mounting plate 1 and displaced horizontally to the left and right. A spring telescopic member 9 with a telescopic rebound function is fixed to the top of the inner side of the L-shaped push plate 8. A through hole 10 is provided on the side of the piston push rod 7 located outside the drug delivery cylinder 3, and the through hole 10 is adapted to the spring telescopic member 9. The spring telescopic member 9 is inserted into the through hole 10 to realize the positioning of the piston push rod 7, that is, the piston push rod 7 can be moved synchronously with the L-shaped push plate 8, and the L-shaped push plate 8 is driven by the automatic propulsion mechanism to displace from right to left, so as to drive the drug pushing piston 6 to move to the leftmost side of the drug delivery cylinder 3 through the piston push rod 7, so that the drug solution in the drug delivery cylinder 3 can be injected into the patient's rectum from the rubber drug delivery catheter 4 at a uniform speed;

[0024] The drug delivery cylinder 3 is clamped on the top of the mounting plate 1 by a clamping mechanism, and the piston push rod 7 is positioned by inserting the spring expansion member 9 into the through hole 10, and the cylinder cover 5 is locked and fixed on the drug delivery cylinder 3 by a locking mechanism, so that the rectal irrigation drug delivery device can be easily disassembled;

[0025] An arc-shaped cover plate 11 is fixed to the outer walls of the front and rear sides of the dosing barrel 3 by bolts, and an electric heating plate 12 with a temperature control component is fixed to the inner side of the arc-shaped cover plate 11. The heating temperature of the electric heating plate 12 is set with an upper limit to avoid excessive temperature. By arranging the electric heating plate 12 in the arc-shaped cover plate 11 on the outer walls of both sides of the dosing barrel 3, the medicine liquid inside the dosing barrel 3 can be preheated so that the temperature of the medicine liquid is adapted to the human body temperature.

[0026] The clamping mechanism includes a first screw rod 13 and a knob 14, wherein the first screw rod 13 is provided with two groups and respectively threadedly penetrates the two groups of fixed plates 2, the knob 14 is provided with two groups and is respectively fixed to the opposite ends of the two groups of first screw rods 13 by screws, and the end of the first screw rod 13 away from the knob 14 is rotatably connected with an arc clamping plate 15 through a bearing, and a limiting mechanism is symmetrically connected between the arc clamping plate 15 and the fixed plate 2, which plays a limiting role on the arc clamping plate 15, so that the arc clamping plate 15 is more stable during the movement process, and the first screw rod 13 is driven to rotate in the direction of the arc clamping plate 15 by rotating the knob 14, and the arc clamping plate 15 is driven to move, and when the two groups of arc clamping plates 15 are displaced toward each other, the drug cartridge 3 can be clamped and fixed.

[0027] The limiting mechanism includes a limiting tube 16 and a limiting rod 17, wherein the limiting tube 16 is fixedly connected to the fixing plate 2 by screws, and the limiting rod 17 is fixedly connected to the arc-shaped clamping plate 15 by screws. One end of the limiting rod 17 away from the arc-shaped clamping plate 15 is slidably arranged in the limiting tube 16, and the arc-shaped clamping plate 15 is limited by the cooperation of the limiting rod 17 and the limiting tube 16 to prevent the arc-shaped clamping plate 15 from rotating with the first screw 13.

[0028] The locking mechanism includes a threaded connection ring 18, which is slidably sleeved on the outside of the tube cover 5 and has an inner wall on the side close to the dosing tube 3 with an internal thread, and an outer wall on the side close to the tube cover 5 with an external thread matching the threaded connection ring 18, a limiting convex ring 19 is fixed to the outer wall of the tube cover 5, and a limiting groove 20 matching the limiting convex ring 19 is provided on the inner wall of the threaded connection ring 18, and the limiting convex ring 19 extends into the limiting groove 20, and the threaded connection ring 18 is limited by the limiting convex ring 19. By screwing the threaded connection ring 18 onto the dosing tube 3, the tube cover 5 and the dosing tube 3 can be driven to closely connect, thereby realizing the locking and fixation between the tube cover 5 and the dosing tube 3.

[0029] An annular sealing groove 21 is formed at one end of the tube cover 5 close to the dosing tube 3, and a rubber sealing ring 22 is fixed to the other end of the dosing tube 3 close to the tube cover 5. The rubber sealing ring 22 is adapted to the annular sealing groove 21. When the tube cover 5 is placed on the dosing tube 3, the rubber sealing ring 22 is embedded in the annular sealing groove 21 to achieve a sealed connection between the tube cover 5 and the dosing tube 3.

[0030] The automatic propulsion mechanism includes a motor 23 and a second screw rod 24, wherein the motor 23 is fixed to the left outer wall of the mounting plate 1 by bolts, and the second screw rod 24 is rotatably connected to the inside of the mounting plate 1 through a bearing. The left end of the second screw rod 24 passes through the outside of the mounting plate 1 through a bearing and is fixedly connected to the output end shaft of the motor 23. The lower part of the L-shaped push plate 8 slides through the inside of the mounting plate 1 and is threadedly sleeved on the second screw rod 24. A through groove adapted to the L-shaped push plate 8 is opened at the top of the mounting plate 1 for the L-shaped push plate 8 to slide through. The second screw rod 24 is driven to rotate by the motor 23, so that the L-shaped push plate 8 threadedly sleeved on the second screw rod 24 is displaced laterally.

[0031] The spring telescopic part 9 includes a telescopic rod 901 and a telescopic tube 902, wherein the telescopic rod 901 is fixed to the inner top of the L-shaped push plate 8 by screws, and the telescopic tube 902 is slidably sleeved on the outside of the telescopic rod 901 and adapted to the through hole 10, and a limiting spring 903 is fixedly connected between the bottom end of the telescopic rod 901 and the bottom end of the inside of the telescopic tube 902. The limiting spring 903 provides an elastic ejection force for the telescopic tube 902, so that the telescopic tube 902 can be automatically ejected downward and inserted into the through hole 10.

[0032] Handles 25 are fixed to the outer walls of the front and rear sides of the mounting plate 1 by bolts, which is convenient for medical staff to hold the device. Graduation lines 26 are printed on the outer wall of the drug delivery barrel 3, which is convenient for observing the liquid level when adding medicine. The end of the drug outlet of the drug delivery barrel 3 is designed to be conical, which is convenient for the rubber drug delivery catheter 4 to be connected.

[0033] When it is necessary to administer medication by rectal perfusion to the patient, the medication barrel 3 is clamped on the top of the mounting plate 1, and the spring expansion member 9 on the top inner side of the L-shaped push plate 8 is inserted into the through hole 10 on the piston push rod 7. The drug outlet of the medication barrel 3 is first extended into the drug liquid storage container, and the automatic propulsion mechanism is used to drive the L-shaped push plate 8 to move from right to left, so as to drive the drug pushing piston 6 to move to the leftmost side of the medication barrel 3 through the piston push rod 7, and the drug liquid in the drug liquid storage container is drawn into the medication barrel 3, and then the rubber medication conduit 4 is interference-fitted to the drug outlet of the medication barrel 3. Then, the medical staff holds the rectal perfusion medication device and inserts the rubber medication catheter 4 from the patient's anus into the rectum, and then starts the electric heating plate 12 in the arc-shaped cover plate 11 to heat the medication barrel 3 until the temperature of the medication liquid is adapted to the temperature of the human body, so as to achieve preheating before medication liquid perfusion, and then uses the automatic propulsion mechanism to drive the L-shaped push plate 8 to move from left to right, so as to drive the medication push piston 6 to move uniformly to the leftmost side of the medication barrel 3 through the piston push rod 7, so that the medication liquid in the medication barrel 3 is uniformly and uniformly injected into the patient's rectum, so as to achieve uniform medication;

[0034] When the drug solution is injected, the rubber drug delivery catheter 4 is pulled out from the patient's anus, and then the rubber drug delivery catheter 4 is pulled out from the drug outlet of the drug delivery barrel 3 and disposed of as medical waste. Then, the clamping mechanism for the drug delivery barrel 3 is released, and the spring telescopic part 9 is taken out from the through hole 10 on the piston push rod 7 to release the positioning of the piston push rod 7. Then, the drug delivery barrel 3 is directly removed from the mounting plate 1, and then the locking mechanism for the locking fixation between the barrel cover 5 and the drug delivery barrel 3 is released, and the barrel cover 5 is easily removed from the drug delivery barrel 3 to open the drug delivery barrel 3 and clean the residual inside it.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A rectal irrigation medication device, comprising a mounting plate (1), characterized in that: A fixing plate (2) is symmetrically fixed to the top of the mounting plate (1), a drug delivery barrel (3) is clamped between two groups of the fixing plates (2) via a clamping mechanism, a drug delivery barrel (3) is interference-fitted with a rubber drug delivery tube (4) at a drug delivery outlet, a barrel cover (5) fixed via a locking mechanism is sealed and docked at one end of the drug delivery barrel (3) away from the rubber drug delivery tube (4), a drug delivery barrel (3) is slidably provided with a drug pushing piston (6) inside, and a sliding stopper (6) is fixed on the side of the drug pushing piston (6) away from the rubber drug delivery tube (4) A piston push rod (7) passes through the cylinder cover (5); an L-shaped push plate (8) is slidably provided on the top of the mounting plate (1) away from the rubber drug delivery tube (4) and driven to move by an automatic propulsion mechanism; a spring telescopic member (9) is fixed to the top of the inner side of the L-shaped push plate (8); a through hole (10) adapted to the spring telescopic member (9) is opened on the piston push rod (7); an arc-shaped cover plate (11) is symmetrically fixed to the outer wall of the drug delivery cylinder (3); an electric heating plate (12) is fixed to the inner side of the arc-shaped cover plate (11).

2. A rectal irrigation medication device according to claim 1, characterized in that: The clamping mechanism comprises a first screw rod (13) threadedly penetrating the fixed plate (2) and a knob (14) fixed to an end of the first screw rod (13) away from the drug delivery barrel (3); an end of the first screw rod (13) away from the knob (14) is rotatably connected to an arc-shaped clamping plate (15); and a limiting mechanism is symmetrically connected between the arc-shaped clamping plate (15) and the fixed plate (2).

3. A rectal infusion medication device according to claim 2, characterized in that: The limiting mechanism comprises a limiting tube (16) fixedly connected to the fixing plate (2) and a limiting rod (17) fixedly connected to the arc-shaped clamping plate (15); one end of the limiting rod (17) away from the arc-shaped clamping plate (15) is slidably arranged in the limiting tube (16).

4. A rectal infusion medication device according to claim 1, characterized in that: The locking mechanism comprises a threaded connection ring (18) slidably sleeved on the outside of the barrel cover (5); an outer wall of the medication barrel (3) close to the barrel cover (5) is provided with an external thread matched with the threaded connection ring (18).

5. A rectal irrigation medication device according to claim 4, characterized in that: A limiting convex ring (19) is fixed on the outer wall of the cylinder cover (5), a limiting groove (20) adapted to the limiting convex ring (19) is formed on the inner wall of the threaded connection ring (18), and the limiting convex ring (19) extends into the limiting groove (20).

6. A rectal irrigation medication device according to claim 1, characterized in that: An annular sealing groove (21) is formed at one end of the barrel cover (5) close to the medication barrel (3), and a rubber sealing ring (22) adapted to the annular sealing groove (21) is fixed to one end of the medication barrel (3) close to the barrel cover (5).

7. A rectal irrigation medication device according to claim 1, characterized in that: The automatic propulsion mechanism comprises a motor (23) fixed to the outer wall of the mounting plate (1) and a second screw rod (24) rotatably connected to the inside of the mounting plate (1) and driven to rotate by the motor (23); the lower part of the L-shaped push plate (8) slides through the inside of the mounting plate (1) and is threadedly sleeved on the second screw rod (24).

8. A rectal irrigation medication device according to claim 1, characterized in that: The spring telescopic member (9) comprises a telescopic rod (901) fixed to the inner top end of the L-shaped push plate (8) and a telescopic tube (902) slidably sleeved on the outside of the telescopic rod (901), and a limit spring (903) is fixedly connected between the bottom end of the telescopic rod (901) and the inner bottom end of the telescopic tube (902).

9. A rectal irrigation medication device according to claim 1, characterized in that: Handles (25) are fixed to the outer walls on both the front and rear sides of the mounting plate (1), scale lines (26) are printed on the outer wall of the drug delivery barrel (3), and the drug outlet end of the drug delivery barrel (3) is designed to be conical.

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