Infusion speed regulating device and infusion device thereof

Abstract

The present invention discloses an infusion speed regulating device comprising: a housing; an adjusting wheel; a connecting rod, one end of which is connected to the middle of the adjusting wheel, and the other end of which is provided with a first sliding block matching the first sliding groove; a compression spring, which is located on the opposite side of the connecting rod, one end of which is connected to the middle of the adjusting wheel, and the other end of which is provided with a connecting block, and a pressure block is provided on the other side of the connecting block; wherein the pressure block is pressed against the side wall of the housing under the action of the compression spring, thereby locking the position of the adjusting wheel. An infusion device, wherein the infusion speed regulating device is provided on the infusion tube. The beneficial effect of the present invention is that it can lock the position of the adjusting wheel to prevent movement.

Description

Technical Field

[0001] The present invention relates to the field of medical equipment, and in particular to an infusion speed regulating device and an infusion device thereof. Background Art

[0002] Intravenous infusion is a method of injecting a large amount of sterile liquid, electrolytes, and drugs into the body through the veins using the principles of atmospheric pressure and liquid static pressure. Injecting a large amount of liquid, electrolytes, or blood into the veins is called intravenous infusion. Due to the differences in the injection site and infusion, it can be divided into peripheral intravenous infusion, central venous infusion, hypernutrient infusion (TPN), and blood transfusion.

[0003] Existing infusion devices have the following defects: first, during the infusion process, the adjustment wheel is easily displaced, resulting in changes in the drip rate and discomfort to the patient; second, the infusion bag needs to be hung on the bracket all the time, which is inconvenient for the patient to move; in addition, there is a lack of a check device, which will cause backflow. Summary of the invention

[0004] The object of the present invention is to provide an infusion speed regulating device, which can lock the position of the regulating wheel to avoid movement.

[0005] Another object of the present invention is to provide an infusion device which can lock the position of the adjustment wheel to prevent movement.

[0006] To achieve the above object, the present invention adopts the following technical solutions, including:

[0007] A shell, which is provided with an axial through groove, an inclined hypotenuse is provided on the upper part of the shell, and an inclined slide groove is provided on the side wall of one side of the shell, the slide groove is arranged parallel to the hypotenuse, and the distance between the initial end of the slide groove and the bottom wall of the through groove is greater than the distance between the terminal end of the slide groove and the bottom wall of the through groove;

[0008] an adjusting wheel, which is embedded in the through groove and at least partially extends out of the through groove, and an accommodating space for the infusion tube to pass through is formed between the lower part of the adjusting wheel and the bottom wall of the through groove; and

[0009] A connecting rod, one end of which is connected to the middle of the adjusting wheel, and the other end of which is provided with a first sliding block matching the first sliding groove;

[0010] A compression spring, which is located on the opposite side of the connecting rod, has one end connected to the middle of the adjusting wheel, and the other end is provided with a connecting block, and a pressure block is provided on the other side of the connecting block;

[0011] Wherein, the pressing block is pressed against the side wall of the housing under the action of the compression spring, thereby locking the position of the adjusting wheel.

[0012] Preferably, it also includes:

[0013] A push rod is vertically arranged on the connecting block, with its upper end extending out of the through slot, and is used to drive the connecting block to move, thereby adjusting the compression state of the compression spring.

[0014] Preferably, it also includes:

[0015] A plurality of limiting grooves are arranged on the side walls opposite to the slide groove and distributed along the slide groove, and are used to cooperate with the pressing block to fix the pressing block.

[0016] An infusion device comprises an infusion bag and an infusion tube, wherein the infusion speed regulating device described in any one of the above items is arranged on the infusion tube.

[0017] Preferably, it also includes:

[0018] A shoulder strap is detachably arranged on the infusion bag and is used to fix the infusion bag on the back of a human body.

[0019] Preferably, a joint is provided at the upper portion of the infusion tube, and the joint is detachably connected to the infusion bag; an air filter device for filtering air is provided at the middle portion of the infusion tube, and a needle is provided at the lower end of the infusion tube.

[0020] Preferably, it also includes:

[0021] A fixing device, which is arranged on the upper part of the infusion tube and is used to fix the infusion tube on the wall;

[0022] Wherein, the fixing device comprises:

[0023] A telescopic rod, one end of which is connected to the infusion tube and is used to adjust the distance between the infusion tube and the wall;

[0024] A suction cup is arranged at the other end of the telescopic rod and is used for adsorbing on the wall.

[0025] Preferably, it also includes:

[0026] An air inlet valve, which is arranged on the suction cup and is used to balance the pressure inside and outside the suction cup;

[0027] Wherein, the intake valve comprises:

[0028] An air inlet hole, which is arranged on the suction cup;

[0029] A first limiting shoulder, which is arranged in the middle of the air inlet hole;

[0030] A piston, the front end of which abuts against the first limit shoulder, and is used to open or close the air inlet hole;

[0031] a piston rod extending out of the air inlet hole;

[0032] A second limiting shoulder, which is arranged at an outer end of the air inlet hole;

[0033] A compression spring, which is sleeved on the piston rod, with two ends respectively abutting against the first limit shoulder and the second limit shoulder;

[0034] The handle has a middle portion hinged on one side of the air inlet and a front end connected to the end of the piston rod.

[0035] Preferably, it also includes:

[0036] A check valve, which is arranged in the needle and is used to control the one-way flow of liquid in the needle;

[0037] Wherein, the check valve comprises:

[0038] A mounting seat, which is arranged on the inner wall of the needle;

[0039] The first valve flap and the second valve flap are arranged in the needle head, the front part of which is semi-arc-shaped and interlocked with each other to open or close the flow channel in the needle head;

[0040] A rotating shaft is respectively arranged at the ends of the first valve flap and the second valve flap, and is used to fix the first valve flap and the second valve flap on the mounting seat respectively. A torsion spring is arranged on the rotating shaft.

[0041] Preferably, it also includes:

[0042] The buffer balls are evenly distributed on the inner wall of the needle and are used to slow down the flow rate of the drug solution.

[0043] The beneficial effects of the invention are as follows: 1. The pressing block is pressed against the side wall of the shell under the action of the compression spring, thereby locking the position of the adjusting wheel to prevent movement; 2. A detachable shoulder strap is provided, which can be fixed on the back of the human body; 3. A fixing device is provided, which can fix the infusion tube on the wall; 4. A check valve is provided in the needle to prevent blood return. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 The invention discloses a three-dimensional diagram of an infusion speed regulating device.

[0045] Figure 2 The invention is a top view of an infusion speed regulating device.

[0046] Figure 3 yes Figure 2 AA section view.

[0047] Figure 4 It is a schematic diagram of an infusion device invented.

[0048] Figure 5It is a schematic diagram of the fixing device in the present invention.

[0049] Figure 6 It is a schematic diagram of a needle in the present invention.

[0050] Figure 7 It is a schematic diagram of the check valve in the present invention. DETAILED DESCRIPTION

[0051] The invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement it according to the description.

[0052] It should be understood that terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or other elements or combinations thereof.

[0053] like Figure 1-7 As shown, one implementation form of the present invention, in order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme, the infusion speed regulating device comprises:

[0054] The shell 110 is provided with an axial through groove 111, an inclined hypotenuse is provided on the upper part of the shell 110, and an inclined slide groove 112 is provided on the side wall of one side of the shell 110. The slide groove 112 is arranged parallel to the hypotenuse, and the distance between the initial end of the slide groove 112 and the bottom wall of the through groove 111 is greater than the distance between the terminal end of the slide groove and the bottom wall of the through groove 111; as a preferred embodiment, the shell 110 is made of polypropylene material. The adjusting wheel 113 is embedded in the through slot 111 and at least partially extends out of the through slot 111, and a receiving space for the infusion tube 130 to pass through is formed between the lower part of the adjusting wheel 113 and the bottom wall of the through slot 111; one end of the connecting rod 114 is connected to the middle part of the adjusting wheel 130, and the other end is provided with a first sliding block 114a matching the first sliding slot 112; the compression spring 115 is located on the opposite side of the connecting rod 114, one end is connected to the middle part of the adjusting wheel, and the other end is provided with a connecting block 116, and a pressing block 117 is provided on the other side of the connecting block 116; wherein, the pressing block 117 is pressed against the side wall of the housing 110 under the action of the compression spring 115, thereby locking the position of the adjusting wheel 113. As a preferred embodiment, a push rod 116a is provided on the connecting block 116, and the upper end of the push rod 116a extends out of the through slot 111. As a further preference, a plurality of limit grooves 118 are provided on the side wall opposite to the slide groove 112, and the plurality of limit grooves 118 are distributed along the slide groove 112. As a further preference, a resistance block for supporting the infusion tube is provided on the bottom wall of the through groove 111. The thickness of the resistance block gradually decreases from the starting end to the end.

[0055] During use, when the position of the adjusting wheel 130 needs to be adjusted, the compression spring 115 is further compressed by pushing the push rod 116a. After the compression spring 115 is compressed, the pressure block 117 is separated from the side wall of the housing 110. At this time, the adjusting wheel 130 can move arbitrarily along the slide groove 112. When it is adjusted to a suitable position, the push rod 116a is released. Under the action of the compression spring 115, the pressure block 117 presses against the side wall of the housing 110 and locks the adjusting wheel 130 through friction.

[0056] In another embodiment, the push rod 116 a is further included. The push rod 116 a is vertically disposed on the connection block 116 , with the upper end extending out of the through slot 111 , and is used to drive the connection block 116 to move, thereby adjusting the compression state of the compression spring 115 .

[0057] In another embodiment, it further comprises: a plurality of limiting grooves 118 . The plurality of limiting grooves 118 are arranged on the side walls opposite to the slide groove 112 and distributed along the slide groove 112 , and are used to cooperate with the pressing block 117 to fix the pressing block 117 .

[0058] An infusion device 1 comprises an infusion bag 120 and an infusion tube 130, on which the infusion tube is provided with any of the above-mentioned infusion speed regulating devices 110. Preferably, a liquid outlet 121 is provided at the lower end of the infusion bag 120, and a joint 131 is provided at the upper end of the infusion tube 130, and the liquid outlet 121 and the joint 131 are detachably connected. More preferably, the liquid outlet 121 and the joint 131 are connected by threads.

[0059] In another embodiment, it further comprises: a shoulder strap 122 is detachably provided on the infusion bag 120, for fixing the infusion bag 120 on the back of a human body. As a preferred embodiment, buttons matching the infusion bag 120 are provided at both ends of the shoulder strap 122. As a further preferred embodiment, a detachable hook 123 is provided at the upper end of the infusion bag 120.

[0060] In another embodiment, a joint 131 is provided at the upper part of the infusion tube 130, and the joint is detachably connected to the infusion bag 120; an air filter 132 for filtering air is provided at the middle part of the infusion tube 130, and a needle 140 is provided at the lower end of the infusion tube. Preferably, a drug adding port 150 is provided at the upper part of the infusion tube 130. Preferably, a handrail block 141 for easy holding is provided at the rear part of the 140, and a liquid outlet 143 is provided at the end of the needle.

[0061] In another embodiment, it also includes: a fixing device 160, which is arranged on the upper part of the infusion tube 130 and is used to fix the infusion tube 130 on the wall; wherein the fixing device includes: one end of a telescopic rod is connected to the infusion tube 130 and is used to adjust the distance between the infusion tube 130 and the wall; a suction cup 166 is arranged at the other end of the telescopic rod and is used to be adsorbed on the wall. As a preferred embodiment, the telescopic rod comprises: a first telescopic rod 161 whose end is connected to the infusion tube, a first spring pin 162 is provided at the front of the first telescopic rod 161, a second telescopic rod 163 is sleeved on the outside of the first telescopic rod 161, a plurality of first limiting holes 163a are provided on the second telescopic rod 163, the first spring pin 162 and the plurality of first limiting holes 163a can be selectively matched, a second spring pin 164 is provided at the front end of the second telescopic rod 163, a third telescopic rod 165 is sleeved on the outside of the second telescopic rod 163, a plurality of second limiting holes 165a are provided on the third telescopic rod 165, the second spring pin 164 and the plurality of second limiting holes 165a can be selectively matched. A suction cup 166 is provided at the front end of the third telescopic rod 165.

[0062] In another embodiment, it also includes: an air intake valve is arranged on the suction cup 166, which is used to balance the pressure inside and outside the suction cup. The air intake valve includes: an air intake hole 171 is arranged on the suction cup 166; a first limit shoulder 172 is arranged in the middle of the air intake hole 171; the front end of the piston 173 abuts against the first limit shoulder 172, which is used to open or close the air intake hole 171; the upper end of the piston rod 174 extends out of the air intake hole 171; the second limit shoulder 175 is arranged at the outer end of the air intake hole 171; the compression spring 176 is sleeved on the piston rod 174, and the two ends are respectively abutted against the first limit shoulder 172 and the second limit shoulder 175; the middle part of the handle 177 is hinged to one side of the air intake hole 171, and the front end is connected to the end of the piston rod 174. When it is necessary to remove the suction cup 166 from the wall, the handle 177 is pressed down, the piston rod 174 drives the piston 173 to move upward, the air inlet 171 is opened, and the gas enters the suction cup 166. When the air pressure is balanced, the suction cup 166 can be removed. After removal, the handle 177 is released, and the piston rod 174 is reset under the action of the compression spring 176, so that the front end of the piston 173 abuts against the first limit shoulder 172, and the air inlet 171 is closed.

[0063] In another embodiment, it also includes: a check valve 180 is arranged in the needle 140, for controlling the unidirectional flow of liquid in the needle; wherein the check valve 180 includes: a mounting seat 181 is arranged on the inner wall of the needle 140; a first valve flap 182 and a second valve flap 183 are arranged in the needle 140, and the front part is semi-arc-shaped, which are interlocked and used to open or close the flow channel in the needle; a rotating shaft 184 is respectively arranged at the ends of the first valve flap 182 and the second valve flap 183, for respectively fixing the first valve flap 182 and the second valve flap 183 on the mounting seat 181; a torsion spring is provided on the rotating shaft 184.

[0064] In another embodiment, it further includes: buffer balls 142, which are evenly distributed on the inner wall of the needle 140 to slow down the flow rate of the drug solution.

[0065] In summary, the present invention provides an infusion speed regulating device and an infusion device thereof, wherein the pressure block 117 is pressed against the side wall of the housing 110 under the action of the compression spring 115, thereby locking the position of the regulating wheel 113 to prevent movement; a detachable shoulder strap 122 is provided, which can be fixed to the back of the human body; a fixing device 160 is provided, which can fix the infusion tube to the wall; and a check valve 180 is provided in the needle to prevent blood return.

[0066] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An infusion device, comprising an infusion bag and an infusion tube, characterized in that: A fixing device, which is arranged on the upper part of the infusion tube and is used to fix the infusion tube on the wall; the fixing device comprises: one end of a telescopic rod is connected to the infusion tube and is used to adjust the distance between the infusion tube and the wall; a suction cup is arranged on the other end of the telescopic rod and is used to be adsorbed on the wall; An air intake valve, which is arranged on the suction cup and is used to balance the pressure inside and outside the suction cup; the air intake valve comprises: an air intake hole, which is arranged on the suction cup; a first limit shoulder, which is arranged in the middle of the air intake hole; a piston, whose front end abuts against the first limit shoulder, and is used to open or close the air intake hole; A piston rod extending out of the air inlet hole; a second limit shoulder disposed at an outer end of the air inlet hole; a compression spring sleeved on the piston rod, with its two ends respectively abutting against the first limit shoulder and the second limit shoulder; a handle, the middle of which is hinged on one side of the air inlet hole, and the front end of which is connected to the end of the piston rod; A check valve is arranged in the needle and used to control the one-way flow of liquid in the needle. The check valve comprises: a mounting seat arranged on the inner wall of the needle; a first valve flap and a second valve flap arranged in the needle, the front part of which is semi-arc-shaped and interlocked with each other, and used to open or close the flow channel in the needle; a rotating shaft is respectively arranged at the ends of the first valve flap and the second valve flap, and used to fix the first valve flap and the second valve flap on the mounting seat respectively, and a torsion spring is arranged on the rotating shaft; Buffer balls are evenly distributed on the inner wall of the needle to slow down the flow rate of the liquid medicine; The infusion speed regulating device is arranged on the infusion tube, and the infusion speed regulating device comprises: a shell body, which is provided with an axial through groove, an inclined hypotenuse is arranged on the upper part of the shell body, and an inclined slide groove is arranged on the side wall of one side of the shell body, the slide groove is arranged in parallel with the hypotenuse, and the distance between the initial end of the slide groove and the bottom wall of the through groove is greater than the distance between the terminal end of the slide groove and the bottom wall of the through groove; an adjusting wheel, which is embedded in the through groove and at least partially extends out of the through groove, and a receiving space for the infusion tube to pass through is formed between the lower part of the adjusting wheel and the bottom wall of the through groove; a connecting rod, one end of which is connected to the middle part of the adjusting wheel, and the other end is provided with a first sliding block matching the first slide groove; a compression spring, which is located on the opposite side of the connecting rod, one end of which is connected to the middle part of the adjusting wheel, and the other end is provided with a connecting block, and a pressure block is provided on the other side of the connecting block; the pressure block is pressed against the side wall of the shell under the action of the compression spring, thereby locking the position of the adjusting wheel; A push rod, which is vertically arranged on the connecting block, with its upper end extending out of the through slot, and is used to drive the connecting block to move, thereby adjusting the compression state of the compression spring; A plurality of limiting grooves are arranged on the side walls opposite to the slide groove and distributed along the slide groove, and are used to cooperate with the pressing block to fix the pressing block.

2. The infusion device according to claim 1, characterized in that: Also includes: A shoulder strap is detachably arranged on the infusion bag and is used to fix the infusion bag on the back of a human body.

3. The infusion device according to claim 2, characterized in that: A joint is provided at the upper part of the infusion tube, and the joint is detachably connected to the infusion bag; an air filter device for filtering air is provided at the middle part of the infusion tube, and a needle is provided at the lower end of the infusion tube.

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