Improved infusion apparatus

Abstract

The utility model discloses an improved infusion apparatus, which relates to the technical field of infusion and comprises an infusion tube and a reinforcing mechanism, an infusion needle is arranged at one end of the infusion tube, a heparin cap is arranged at one end of the infusion needle, the reinforcing mechanism comprises a fixing tube sleeved on the outer wall of the heparin cap in a threaded manner, and a hard connecting tube is arranged between the infusion tube and the infusion needle. A plurality of annular clamping grooves are formed in the outer wall of the hard connecting pipe, a plurality of extrusion balls are arranged between the annular clamping grooves and the inner wall of the fixing pipe, and an extrusion mechanism is arranged on the outer wall of the fixing pipe. By means of the arrangement of the hard connecting pipe, the annular clamping grooves and the fixing pipe, when an infusion needle head is inserted into the heparin cap, the hard connecting pipe can be inserted into the fixing pipe, then under the cooperation of the extrusion mechanism, the extrusion balls are extruded by the extrusion mechanism and clamped in the corresponding annular clamping grooves, and the hard connecting pipe can be positioned in the fixing pipe; the situation that an infusion tube is not prone to being separated from the heparin cap in the infusion process is avoided, and therefore the infusion stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of infusion, in particular to an improved infusion set. Background Art

[0002] An infusion set is a device used to perform infusions on clinical patients. The needle is inserted into the patient's body so that the injection liquid in the injection bottle can enter the patient's body along the infusion tube and needle.

[0003] Some patients need long-term and regular infusions. In order to avoid having to get an injection every time they get an infusion, an indwelling needle will be used directly for the patient. The indwelling needle will remain inserted in the patient's body. Each time an infusion is given, you only need to insert the needle of the infusion set into the heparin cap of the indwelling needle.

[0004] A rubber block is fixedly connected to the tube mouth of the heparin cap, and the needle of the infusion set is directly inserted into the rubber block for injection, and then the needle is stably inserted into the heparin cap by squeezing the rubber block. However, if the infusion tube is pulled, the needle may fall off the heparin cap, thereby reducing the stability of the infusion. For this reason, we propose an improved infusion set. Utility Model Content

[0005] The purpose of the utility model is to provide an improved infusion set to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an improved infusion set, comprising:

[0007] An infusion tube, one end of which is provided with an infusion needle, and one end of which is provided with a heparin cap;

[0008] A reinforcement mechanism is arranged between the infusion tube and the heparin cap, the reinforcement mechanism comprises a fixed tube threadedly sleeved on the outer wall of the heparin cap, a hard connecting tube is arranged between the infusion tube and the infusion needle, a plurality of annular grooves are opened on the outer wall of the hard connecting tube, a plurality of squeezing balls are arranged between the annular grooves and the inner wall of the fixed tube, and a squeezing mechanism is arranged on the outer wall of the fixed tube.

[0009] Preferably, the extrusion mechanism includes a movable tube sleeved on the outer wall of the fixed tube, the inner wall of the fixed tube is provided with a plurality of connecting holes, the extrusion ball is movably arranged inside the connecting holes, the bottom of the inner wall of the movable tube is fixedly connected with an extrusion ring, and the inner wall of the extrusion ring is fitted with the outer wall of the extrusion ball.

[0010] Preferably, a first fixing ring is fixedly sleeved on the outer wall of the fixed tube, a second fixing ring is fixedly connected to the top of the inner wall of the movable tube, a spring is arranged between the first fixing ring and the second fixing ring, and the spring is sleeved on the outer wall of the fixed tube.

[0011] Preferably, a first connecting tube is provided at one end of the heparin cap, and an indwelling needle is provided at one end of the first connecting tube.

[0012] Preferably, a drip pot is provided at one end of the infusion tube away from the hard connecting tube, a second connecting tube is provided at the top end of the drip pot, and an insertion head is provided at one end of the second connecting tube.

[0013] Preferably, a connecting frame is sleeved on the outer wall of the infusion tube, and an adjusting roller is slidably provided on the outer wall of the connecting frame.

[0014] Technical effects and advantages of the utility model:

[0015] The utility model utilizes the arrangement of the hard connecting tube, the annular groove and the fixed tube. When the infusion needle is inserted into the heparin cap, the hard connecting tube will be inserted into the fixed tube. Then, with the cooperation of the extrusion mechanism, the extrusion ball is squeezed by the extrusion mechanism and clamped in the corresponding annular groove. The hard connecting tube is relatively hard, so that the hard connecting tube is not easily deformed. The hard connecting tube can be positioned in the fixed tube, so that the infusion tube is not easily separated from the heparin cap during the infusion process, thereby improving the stability of the infusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0017] Figure 2 This is a front sectional structural diagram of the fixed pipe of the utility model.

[0018] In the figure: 101, infusion tube; 102, heparin cap; 103, infusion needle; 201, hard connecting tube; 202, annular groove; 203, fixed tube; 204, squeezing ball; 301, connecting hole; 302, movable tube; 303, squeezing ring; 401, first fixed ring; 402, second fixed ring; 403, spring; 501, first connecting tube; 502, indwelling needle; 601, drip pot; 602, second connecting tube; 603, insertion head; 701, connecting frame; 702, adjusting roller. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model provides Figure 1-2An improved infusion set shown in the figure comprises an infusion tube 101 and a reinforcement mechanism. An infusion needle 103 is arranged at one end of the infusion tube 101, and a heparin cap 102 is arranged at one end of the infusion needle 103. A rubber block is arranged inside the heparin cap 102. When the infusion tube 101 is connected to the heparin cap 102, the infusion needle 103 is directly inserted into the rubber block. At this time, the rubber block will clamp the infusion needle 103, so that the infusion needle 103 is connected to the inside of the heparin cap 102.

[0021] In a preferred embodiment, the reinforcement mechanism is arranged between the infusion tube 101 and the heparin cap 102, and the reinforcement mechanism includes a fixed tube 203 threadedly sleeved on the outer wall of the heparin cap 102, a hard connecting tube 201 is arranged between the infusion tube 101 and the infusion needle 103, and a plurality of annular grooves 202 are opened on the outer wall of the hard connecting tube 201, and a plurality of squeezing balls 204 are arranged between the annular grooves 202 and the inner wall of the fixed tube 203, and a squeezing mechanism is arranged on the outer wall of the fixed tube 203. When the hard connecting tube 201 is inserted into the heparin cap 102, the hard connecting tube 201 will be inserted into the fixed tube 203, and then with the cooperation of the squeezing mechanism, the squeezing ball 204 is squeezed by the squeezing mechanism and stuck in the corresponding annular groove 202. The hard connecting tube 201 is relatively hard, so that the hard connecting tube 201 is not easy to deform. The hard connecting tube 201 can be positioned in the fixed tube 203, avoiding the infusion tube 101 from being easily separated from the heparin cap 102 during the infusion process, thereby improving the stability of the infusion.

[0022] Among them, the extrusion mechanism includes a movable tube 302 sleeved on the outer wall of the fixed tube 203, the inner wall of the fixed tube 203 is provided with a plurality of connecting holes 301, the extrusion ball 204 is movably arranged inside the connecting hole 301, the bottom of the inner wall of the movable tube 302 is fixedly connected with an extrusion ring 303, the inner wall of the extrusion ring 303 is fitted with the outer wall of the extrusion ball 204, the outer wall of the fixed tube 203 is provided with a stepped groove, the movable tube 302 is sleeved on the part with a smaller outer diameter of the fixed tube 203, the inner wall of the extrusion ring 303 is arranged in an inclined surface, the movable tube 302 can be raised to drive the extrusion ring 303 to rise, so that the inner wall of the extrusion ring 303 is against the outer wall of the extrusion ball 204, the extrusion ball 204 can be moved and stuck in the annular groove 202, thereby improving the working stability of the reinforcement mechanism.

[0023] The outer wall of the fixed tube 203 is fixedly sleeved with a first fixed ring 401, the top of the inner wall of the movable tube 302 is fixedly connected with a second fixed ring 402, a spring 403 is arranged between the first fixed ring 401 and the second fixed ring 402, and the spring 403 is sleeved on the outer wall of the fixed tube 203. Through the elastic action of the spring 403, the spring 403 always has an upward squeezing effect on the second fixed ring 402, so that the movable tube 302 always has an upward movement tendency, so that when the squeezing ring 303 is not subjected to a large external force, the inner wall of the squeezing ring 303 can always squeeze the squeezing ball 204, so that the squeezing ball 204 is stuck in the annular groove 202, thereby improving the working stability of the squeezing mechanism. When it is necessary to pull out the infusion needle 103 to separate the infusion tube 101 from the heparin cap 102, the staff moves the movable tube 302 downward to release the infusion needle 103. The tube 302 causes the squeezing ring 303 to move downward. At this time, the squeezing ring 303 gives way to the squeezing ball 204, so that the squeezing ball 204 no longer tightly presses against the inner wall of the annular groove 202, and the infusion needle 103 can be pulled out from the rubber in the heparin cap 102 by pulling out the hard connecting tube 201. Similarly, when inserting the infusion needle 103 into the heparin cap 102, it is also necessary to first move the movable tube 302 downward, and then insert the infusion needle 103 into the fixed tube 203 until the infusion needle 103 is inserted into the rubber in the heparin cap 102, and then release the movable tube 302, and the movable tube 302 can be moved up and reset under the elastic action of the spring 403, and the anti-slip texture can be provided on the outer wall of the movable tube 302, so that the staff can save more effort when moving the movable tube 302, thereby improving the stability of the infusion set and the three-way tube when used together.

[0024] Among them, a first connecting tube 501 is provided at one end of the heparin cap 102, and a retention needle 502 is provided at one end of the first connecting tube 501. The retention needle 502 is directly inserted into the patient's body. Through the connection of the first connecting tube 501, the infusion tube 101 injects the injection liquid into the patient's body through the first connecting tube 501 and the retention needle 502 at one time through the infusion needle 103.

[0025] Among them, a drip pot 601 is provided at one end of the infusion tube 101 away from the hard connecting tube 201, a second connecting tube 602 is provided at the top of the drip pot 601, an insertion head 603 is provided at one end of the second connecting tube 602, and the insertion head 603 is directly inserted into the rubber of the bottle mouth of the injection bottle, so that the injection can be injected into the patient's body through the insertion head 603, the second connecting tube 602, the drip pot 601, the infusion tube 101, the hard connecting tube 201, the infusion needle 103, the heparin cap 102, the first connecting tube 501 and the indwelling needle 502 in sequence.

[0026] Among them, the outer wall of the infusion tube 101 is provided with a connecting frame 701, and the outer wall of the connecting frame 701 is slidably provided with an adjusting roller 702. By moving the adjusting roller 702 in the connecting frame 701, the squeezing degree of the infusion tube 101 by the adjusting roller 702 can be changed, thereby adjusting the flow rate of the injection liquid in the infusion tube 101, and the flow rate of the injection liquid in the infusion tube 101 can be judged by the dripping speed of the injection liquid from the second connecting tube 602 to the drip pot 601.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An improved infusion set, characterized in that: include: An infusion tube (101), wherein one end of the infusion tube (101) is provided with an infusion needle (103), and one end of the infusion needle (103) is provided with a heparin cap (102); A reinforcement mechanism is provided between the infusion tube (101) and the heparin cap (102), the reinforcement mechanism comprising a fixed tube (203) threadedly sleeved on the outer wall of the heparin cap (102), a hard connecting tube (201) is provided between the infusion tube (101) and the infusion needle (103), a plurality of annular grooves (202) are provided on the outer wall of the hard connecting tube (201), a plurality of squeezing balls (204) are provided between the annular grooves (202) and the inner wall of the fixed tube (203), and a squeezing mechanism is provided on the outer wall of the fixed tube (203).

2. An improved infusion set according to claim 1, characterized in that: The squeezing mechanism comprises a movable tube (302) sleeved on the outer wall of a fixed tube (203); a plurality of connecting holes (301) are provided on the inner wall of the fixed tube (203); the squeezing ball (204) is movably arranged inside the connecting holes (301); a squeezing ring (303) is fixedly connected to the bottom of the inner wall of the movable tube (302); and the inner wall of the squeezing ring (303) is arranged to fit the outer wall of the squeezing ball (204).

3. An improved infusion set according to claim 2, characterized in that: A first fixing ring (401) is fixedly sleeved on the outer wall of the fixing tube (203); a second fixing ring (402) is fixedly connected to the top of the inner wall of the movable tube (302); a spring (403) is provided between the first fixing ring (401) and the second fixing ring (402); and the spring (403) is sleeved on the outer wall of the fixing tube (203).

4. An improved infusion set according to claim 1, characterized in that: A first connecting tube (501) is disposed at one end of the heparin cap (102), and an indwelling needle (502) is disposed at one end of the first connecting tube (501).

5. The improved infusion set according to claim 1, characterized in that: A drip pot (601) is provided at one end of the infusion tube (101) away from the hard connecting tube (201), a second connecting tube (602) is provided at the top end of the drip pot (601), and an insertion head (603) is provided at one end of the second connecting tube (602).

6. The improved infusion set according to claim 1, characterized in that: The outer wall of the infusion tube (101) is sleeved with a connection frame (701), and the outer wall of the connection frame (701) is slidably provided with an adjustment roller (702).

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