Dripping speed adjusting device of infusion apparatus

Abstract

The utility model relates to an infusion apparatus dripping speed adjusting device which comprises a shell, a shaft rod, a pressing wheel, an adjusting mechanism and an operation key, an inner cavity is formed in the shell, a threading hole which penetrates through the two sides and allows an infusion catheter to penetrate through is formed in the shell, guide grooves are symmetrically formed in the inner walls of the two sides of the inner cavity, and the guide grooves extend in an inclined mode. The two ends of the shaft rod are inserted into the guide grooves in the two sides respectively, the shaft rod is fixedly sleeved with the pressing wheel, the pressing wheel abuts against the outer wall of the infusion catheter, and an adjusting mechanism is arranged on one side of the shell. Only if a medical worker holds the operation key to operate the adjusting mechanism, the pressing wheel can be adjusted in a rolling mode along the guide groove so that the dripping speed in the infusion catheter can be adjusted, after the medical worker adjusts the dripping speed to be proper, the operation key is taken away, and therefore a patient can be prevented from falling off under the condition that the patient lacks the operation key. The dripping speed cannot be adjusted, the locking effect is achieved, the situation that a patient adjusts the dripping speed of liquid medicine at will can be avoided, and then adverse effects on the patient due to the abnormal dripping speed of the liquid medicine are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to a drip rate regulating device for an infusion device. Background Art

[0002] An infusion set is a common medical device that can be used for intravenous infusion of drugs. For some drugs, there are requirements for the drip rate, which cannot be too fast or too slow, and the drip rate of the drug needs to be controlled.

[0003] Traditional infusion sets rely on their drip rate regulators to adjust the drip rate. The specific adjustment method is to turn the roller on the drip rate regulator with one hand. Since the adjustment method is very simple, patients can also adjust it by themselves. As a result, some patients will be eager to complete the infusion and adjust the drip rate faster after the nurse adjusts the flow rate of the infusion set and leaves, which will have an adverse effect on the patients. Utility Model Content

[0004] The purpose of the utility model is to provide a drip rate regulating device for an infusion device which can prevent arbitrary adjustment, and effectively solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose, the present utility model provides the following technical solutions.

[0006] An infusion device drip rate adjustment device includes a shell, a shaft, a pressure wheel, an adjustment mechanism and an operating key. The shell has an inner cavity, and the shell has through-holes on both sides for the infusion catheter to pass through. Guide grooves are symmetrically arranged on the inner walls of both sides of the inner cavity, and the guide grooves extend obliquely. The two ends of the shaft are respectively inserted into the guide grooves on both sides. The pressure wheel is fixedly sleeved on the shaft and abuts against the outer wall of the infusion catheter. An adjustment mechanism is provided on one side of the shell. The operating key and the adjustment mechanism are of a split-type matching design. Only when the operating key and the adjustment mechanism are operated in coordination can the pressure wheel be adjusted to roll along the guide groove to achieve adjustment of the pressure amount of the infusion catheter.

[0007] It can be seen from this that only when the medical staff operates the adjustment mechanism by holding the operating key can the pressure wheel be rolled and adjusted along the guide groove to adjust the drip rate in the infusion catheter. When the medical staff adjusts the drip rate appropriately, they take the operating key away with them. Then, when the patient lacks the operating key, he or she cannot adjust the drip rate, which has a locking effect and can prevent the patient from arbitrarily adjusting the drip rate of the drug solution, thereby avoiding adverse effects on the patient due to abnormal drug drip rate.

[0008] Furthermore, the adjustment mechanism includes a side groove opened on one side surface of the shell, an adjustment handle arranged in the side groove, and a clamping groove provided on the adjustment handle. The side groove is connected to one side guide groove, and the side groove and the guide groove extend in the same direction. One end of the shaft extends into the side groove and is fixedly connected to the adjustment handle. The end face of the adjustment handle facing away from the shaft remains flush with the outer surface of the shell.

[0009] Furthermore, the operating key includes a pinch handle and a clamping head, the clamping head is fixed on the end of the pinch handle, the clamping head can be matched and inserted into the clamping slot, the cross-section of the clamping head can be triangular, quadrilateral, pentagonal or hexagonal, and the pinch handle is a T-shaped structure.

[0010] Furthermore, a rack is fixed on the inner wall of one side of the inner cavity, and its extension direction is parallel to the guide groove. A gear is fixedly mounted on the shaft, and the gear is meshed with the rack.

[0011] Furthermore, a first indicator band, a second indicator band and a third indicator band are sequentially arranged on the outer surface of the shell along the extending direction of the guide groove, and the colors of the first indicator band, the second indicator band and the third indicator band are different.

[0012] Furthermore, both ends of the shell are connected to catheter clamps via connecting ropes, and the two catheter clamps are respectively sleeved on the infusion catheter.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0014] 1. The utility model can only be achieved by the medical staff holding the operating key to operate the adjustment mechanism, so that the pressure wheel can be rolled along the guide groove to adjust the drip rate in the infusion catheter. When the medical staff adjusts the drip rate to a suitable level, they take the operating key away with them. In the absence of the operating key, the patient cannot adjust the drip rate, which has a locking effect, preventing the patient from arbitrarily adjusting the drip rate of the drug solution, thereby avoiding adverse effects on the patient due to abnormal drug drip rate.

[0015] 2. The utility model utilizes the meshing of the gear and the rack to achieve a locking effect. When the adjustment handle, shaft and pressure wheel are not rotated, the gear always maintains a locked effect with the rack, and the pressure wheel cannot be pushed to move under the action of external force. The pressure wheel can only be rolled and adjusted when the adjustment mechanism is operated by the operating key to drive the shaft to rotate, thereby effectively preventing the patient from adjusting by himself.

[0016] 3. The utility model uses the first indicator band, the second indicator band and the third indicator band of different colors to provide an effective indication effect during adjustment, so that medical staff can clearly know the approximate dripping rate currently adjusted, so that medical staff can adjust the dripping rate to the required amount conveniently and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the local structure of the housing in the present utility model;

[0019] Figure 3 This is one of the schematic diagrams of the cross-sectional structure of the shell in the present utility model;

[0020] Figure 4 This is the second schematic diagram of the cross-sectional structure of the shell in the present utility model;

[0021] Figure 5 This is a detailed structural diagram of the operating key in the utility model.

[0022] In the figure: 1. Shell; 101. First indicator band; 102. Second indicator band; 103. Third indicator band; 11. Inner cavity; 12. Through hole; 13. Guide groove; 2. Shaft; 3. Pressure wheel; 31. Anti-slip groove; 4. Adjustment mechanism; 41. Side groove; 42. Adjustment handle; 43. Slot; 5. Gear; 51. Rack; 6. Operation key; 61. Pinch handle; 62. Clamp; 7. Connecting rope; 8. Catheter clamp. DETAILED DESCRIPTION

[0023] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 5 The utility model provides an infusion device drip rate adjustment device, including a shell 1, a shaft 2, a pressure wheel 3, an adjustment mechanism 4 and an operation key 6. The shell 1 has an inner cavity 11, and the shell 1 has a through hole 12 on both sides for the infusion catheter to pass through. Guide grooves 13 are symmetrically arranged on the inner walls on both sides of the inner cavity 11. The guide grooves 13 extend obliquely, and the two ends of the shaft 2 are respectively inserted into the guide grooves 13 on both sides. The pressure wheel 3 is fixedly sleeved on the shaft 2 and abuts against the outer wall of the infusion catheter. In addition, anti-slip grooves 31 are provided on the outer edge wall of the pressure wheel 3, which can increase the friction between the pressure wheel 3 and the outer wall of the infusion catheter. An adjustment mechanism 4 is provided on one side of the shell 1, and the operation key 6 and the adjustment mechanism 4 are split and matched. Only when the operation key 6 and the adjustment mechanism 4 are operated in coordination can the pressure wheel 3 be adjusted to roll along the guide groove 13 to adjust the pressure amount of the infusion catheter.

[0025] In this device, only when the medical staff holds the operating key 6 to operate the adjustment mechanism 4 can the pressure wheel 3 be rolled and adjusted along the guide groove 13 to adjust the drip rate in the infusion catheter. When the medical staff adjusts the drip rate to a suitable level, the operating key 6 is taken away with them. Therefore, the patient cannot adjust the drip rate without the operating key 6, which has a locking effect and can prevent the patient from arbitrarily adjusting the drip rate of the drug solution, thereby avoiding adverse effects on the patient due to abnormal drug drip rate.

[0026] Specifically, the adjustment mechanism 4 includes a side groove 41 opened on one side surface of the shell 1, an adjustment handle 42 arranged in the side groove 41, and a clamping groove 43 provided on the adjustment handle 42. The side groove 41 is connected to one side guide groove 13, and the extension direction of the side groove 41 is consistent with that of the guide groove 13. One end of the shaft rod 2 extends into the side groove 41 and is fixedly connected to the adjustment handle 42. The end face of the adjustment handle 42 facing away from the shaft rod 2 remains flush with the outer surface of the shell 1.

[0027] The operating key 6 includes a pinch handle 61 and a clamp head 62. The clamp head 62 is fixed on the end of the pinch handle 61. The clamp head 62 can be matched and inserted into the slot 43. The cross-section of the clamp head 62 can be triangular, quadrilateral, pentagonal or hexagonal. The pinch handle 61 is a T-shaped structure, which is convenient for pinching and exerting force for twisting.

[0028] When the drip rate needs to be adjusted, the medical staff holds the pinch handle 61 and aligns the clamp head 62 to insert it into the clamping slot 43, and then twists the pinch handle 61 to drive the adjustment handle 42, the shaft 2 and the pressure wheel 3 to rotate. The rotating pressure wheel 3 contacts the outer wall of the infusion catheter and rolls under the action of friction resistance. Under the limiting action of the guide groove 13 and the shaft 2, the pressure wheel 3 rolls along the outer wall of the infusion catheter. Combined with the inclined extension layout of the guide groove 13, the pressure amount of the pressure wheel 3 on the infusion catheter is changed to achieve drip rate adjustment.

[0029] Since the adjustment handle 42 is arranged in the side groove 41, when the patient inserts a sharp object into the side groove 41 and pushes the side groove 41 with force, the pressure wheel 3 may also be pushed to roll. In order to avoid this problem, the present invention makes the following design:

[0030] Specifically, a rack 51 is fixed on the inner wall of one side of the inner cavity 11, and its extension direction is parallel to the guide groove 13. A gear 5 is fixedly mounted on the shaft 2, and the gear 5 is meshed with the rack 51. The meshing of the gear 5 and the rack 51 has a locking effect. When the adjustment handle 42, the shaft 2 and the pressure wheel 3 are not rotated, the gear 5 always remains locked with the rack 51, and the pressure wheel 3 cannot be pushed to move under the action of external force. The pressure wheel 3 can only be rolled and adjusted when the adjustment mechanism 4 is operated by the operating key 6 to drive the shaft 2 to rotate, thereby effectively preventing the patient from adjusting by himself.

[0031] Specifically, the outer surface of the shell 1 is sequentially arranged with a first indicator band 101, a second indicator band 102 and a third indicator band 103 along the extension direction of the guide groove 13. The colors of the first indicator band 101, the second indicator band 102 and the third indicator band 103 are different. When the adjusting handle 42 moves to the range indicated by the first indicator band 101, the dripping rate is less than 30 drops / min. When the adjusting handle 42 moves to the range indicated by the second indicator band 102, the dripping rate is 40-60 drops / min. When the adjusting handle 42 moves to the range indicated by the third indicator band 103, the dripping rate exceeds 60 drops / min. By utilizing the first indicator band 101, the second indicator band 102 and the third indicator band 103 of different colors, an effective indication effect is achieved during adjustment, so that medical staff can clearly know the approximate dripping rate currently adjusted, so that medical staff can quickly and easily adjust the dripping rate to the required amount.

[0032] Specifically, the two ends of the shell 1 are connected to the catheter clamps 8 through the connecting rope 7. The two catheter clamps 8 are respectively mounted on the infusion catheter. The catheter clamps 8 are press-type buckles. By setting the catheter clamps 8, it is convenient to start or stop the infusion process, and it is convenient for the patient to stop the infusion autonomously when the liquid in the infusion bottle is exhausted.

[0033] The above is a detailed description of the present invention in conjunction with specific embodiments, and the specific implementation methods of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, if a number of equivalent substitutions or obvious modifications are made without departing from the concept of the present invention and the performance or use are the same, they should be considered to fall within the scope of patent protection of the present invention as determined by the submitted claims.

Claims

1. An infusion set drip rate regulating device, characterized by: The adjusting device comprises a housing (1), a shaft (2), a pressure wheel (3), an adjusting mechanism (4) and an operating key (6); The shell (1) has an inner cavity (11), and the shell (1) has a through hole (12) passing through both sides for the infusion catheter to pass through, and guide grooves (13) are symmetrically arranged on the inner walls on both sides of the inner cavity (11), and the guide grooves (13) extend obliquely; The two ends of the shaft (2) are respectively inserted into the guide grooves (13) on both sides, and the pressing wheel (3) is fixedly sleeved on the shaft (2) and abuts against the outer wall of the infusion tube; An adjustment mechanism (4) is provided on one side of the housing (1), and the operating key (6) and the adjustment mechanism (4) are designed to cooperate with each other. Only when the operating key (6) and the adjustment mechanism (4) are operated in cooperation with each other can the pressing wheel (3) be adjusted to roll along the guide groove (13), thereby achieving adjustment of the pressure amount of the infusion catheter.

2. The drip rate regulating device for an infusion device according to claim 1, characterized in that: The adjustment mechanism (4) comprises a side groove (41) provided on a side surface of the housing (1), an adjustment handle (42) arranged in the side groove (41), and a clamping groove (43) provided on the adjustment handle (42); The side groove (41) is connected to the guide groove (13) on one side, and the side groove (41) and the guide groove (13) extend in the same direction; One end of the shaft (2) extends into the side groove (41) and is fixedly connected to the adjustment handle (42); The end surface of the adjustment handle (42) facing away from the shaft (2) is kept flush with the outer surface of the housing (1).

3. The drip rate regulating device for an infusion device according to claim 2, characterized in that: The operating key (6) comprises a pinch handle (61) and a clamping head (62), wherein the clamping head (62) is fixed to the end of the pinch handle (61); The clamping head (62) can be matched and inserted into the clamping slot (43); The cross section of the clamp (62) may be triangular, quadrilateral, pentagonal or hexagonal; The pinch handle (61) is a T-shaped structure.

4. The drip rate regulating device for an infusion device according to claim 1, characterized in that: A rack (51) is fixed on the inner wall of one side of the inner cavity (11), the extension direction of which is parallel to the guide groove (13), and a gear (5) is fixedly mounted on the shaft (2), and the gear (5) is correspondingly engaged with the rack (51).

5. The drip rate regulating device for an infusion device according to claim 1, characterized in that: A first indicator band (101), a second indicator band (102), and a third indicator band (103) are sequentially arranged on the outer surface of the housing (1) along the extending direction of the guide groove (13); The first indicator band (101), the second indicator band (102), and the third indicator band (103) have different colors.

6. The drip rate regulating device for an infusion device according to claim 1, characterized in that: Both ends of the housing (1) are connected to catheter clamps (8) via connecting ropes (7), and the two catheter clamps (8) are respectively sleeved on the infusion catheter.

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