CN113289104A - Anticoagulant injection device for hemodialysis - Google Patents
Anticoagulant injection device for hemodialysis Download PDFInfo
- Publication number
- CN113289104A CN113289104A CN202110634300.5A CN202110634300A CN113289104A CN 113289104 A CN113289104 A CN 113289104A CN 202110634300 A CN202110634300 A CN 202110634300A CN 113289104 A CN113289104 A CN 113289104A
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- Prior art keywords
- injection
- sleeve
- anticoagulant
- hemodialysis
- sliding
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- 238000002347 injection Methods 0.000 title claims abstract description 113
- 239000007924 injection Substances 0.000 title claims abstract description 113
- 239000003146 anticoagulant agent Substances 0.000 title claims abstract description 35
- 229940127219 anticoagulant drug Drugs 0.000 title claims abstract description 35
- 238000001631 haemodialysis Methods 0.000 title claims abstract description 26
- 230000000322 hemodialysis Effects 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000001802 infusion Methods 0.000 claims description 12
- 239000013013 elastic material Substances 0.000 claims description 4
- 238000009395 breeding Methods 0.000 abstract description 2
- 230000001488 breeding effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
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- 238000001727 in vivo Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000010100 anticoagulation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 description 2
- 102000015081 Blood Coagulation Factors Human genes 0.000 description 1
- 108010039209 Blood Coagulation Factors Proteins 0.000 description 1
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 1
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- WQPDUTSPKFMPDP-OUMQNGNKSA-N hirudin Chemical compound C([C@@H](C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC(OS(O)(=O)=O)=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCC(N)=O)C(O)=O)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(O)=O)NC(=O)[C@H](CC(N)=O)NC(=O)[C@H](CC=1NC=NC=1)NC(=O)[C@H](CO)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H]1N(CCC1)C(=O)[C@H](CCCCN)NC(=O)[C@H]1N(CCC1)C(=O)[C@@H](NC(=O)CNC(=O)[C@H](CCC(O)=O)NC(=O)CNC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@H]1NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](CC(N)=O)NC(=O)[C@H](CCCCN)NC(=O)[C@H](CCC(O)=O)NC(=O)CNC(=O)[C@H](CC(O)=O)NC(=O)[C@H](CO)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@H]([C@@H](C)CC)NC(=O)[C@@H]2CSSC[C@@H](C(=O)N[C@@H](CCC(O)=O)C(=O)NCC(=O)N[C@@H](CO)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@H](C(=O)N[C@H](C(NCC(=O)N[C@@H](CCC(N)=O)C(=O)NCC(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CCCCN)C(=O)N2)=O)CSSC1)C(C)C)NC(=O)[C@H](CC(C)C)NC(=O)[C@H]1NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC(N)=O)NC(=O)[C@H](CCC(N)=O)NC(=O)CNC(=O)[C@H](CO)NC(=O)[C@H](CCC(O)=O)NC(=O)[C@H]([C@@H](C)O)NC(=O)[C@@H](NC(=O)[C@H](CC(O)=O)NC(=O)[C@@H](NC(=O)[C@H](CC=2C=CC(O)=CC=2)NC(=O)[C@@H](NC(=O)[C@@H](N)C(C)C)C(C)C)[C@@H](C)O)CSSC1)C(C)C)[C@@H](C)O)[C@@H](C)O)C1=CC=CC=C1 WQPDUTSPKFMPDP-OUMQNGNKSA-N 0.000 description 1
- 229940006607 hirudin Drugs 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 239000011698 potassium fluoride Substances 0.000 description 1
- 235000003270 potassium fluoride Nutrition 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1621—Constructional aspects thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3621—Extra-corporeal blood circuits
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3672—Means preventing coagulation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/52—Arm-rests
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0413—Blood
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Cardiology (AREA)
- Urology & Nephrology (AREA)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- External Artificial Organs (AREA)
Abstract
The invention relates to the technical field of breeding, and discloses an anticoagulant injection device for hemodialysis, which comprises a body, wherein a supporting structure for placing an arm is arranged on the body, the supporting structure comprises a sleeve horizontally connected with the body in a sliding manner, and a limiting ring is arranged on the sleeve; the injection mechanism comprises an injection body, an injection nozzle is communicated with the injection body, a sealing piece is detachably connected to the injection nozzle, an injection pipe is detachably connected to the sealing piece, and the injection pipe is communicated with a needle head; the injection body is internally and vertically connected with an injection plate in a sliding manner, a driving mechanism is arranged below the injection plate and electrically connected with a controller, and the controller is used for controlling the driving mechanism and controlling the movement stroke of the injection plate by the driving mechanism. The invention has simple structure, can control the amount of anticoagulant to be injected, and stably fixes the arm of the patient so as to improve the safety of the injection device.
Description
Technical Field
The invention relates to the technical field of breeding, in particular to an anticoagulant injection device for hemodialysis.
Background
Physical or chemical methods are used to remove or inhibit certain coagulation factors from the blood, to prevent blood coagulation, called anticoagulation, chemical agents or substances that prevent blood coagulation, called anticoagulants or anticoagulation substances, such as natural anticoagulants (heparin, hirudin, etc.) Ca2+ chelating agents (sodium citrate, potassium fluoride).
Hemodialysis is a whole process of draining blood in vivo to a dialyzer consisting of numerous hollow fibers, exchanging substances through dispersion/convection, removing metabolic wastes in vivo, maintaining electrolyte and acid-base balance, simultaneously removing excessive water in vivo, and returning purified blood, wherein the most important ring in the hemodialysis process is to inject anticoagulant, so as to prevent blood from coagulating in blood vessels to form thrombus.
The most important thing is the amount of anticoagulant to be injected during hemodialysis, but these anticoagulant injection devices are ubiquitous and cannot properly inject the amount of anticoagulant in accordance with the coagulation status of the patient during hemodialysis.
Disclosure of Invention
The present invention is intended to provide an anticoagulant infusion device for hemodialysis, which controls the amount of anticoagulant infused.
In order to achieve the purpose, the invention adopts the following technical scheme: an anticoagulant injection device for hemodialysis comprises a body, wherein a support structure for placing an arm is arranged on the body, the support structure comprises a sleeve horizontally connected with the body in a sliding manner, and a limit ring is arranged on the sleeve;
the injection mechanism comprises an injection body, an injection nozzle is communicated with the injection body, a sealing piece is detachably connected to the injection nozzle, an injection pipe is detachably connected to the sealing piece, and the injection pipe is communicated with a needle head;
the injection body is internally and vertically connected with an injection plate in a sliding manner, a driving mechanism is arranged below the injection plate and electrically connected with a controller, and the controller is used for controlling the driving mechanism and controlling the movement stroke of the injection plate by the driving mechanism.
The principle and the advantages of the scheme are as follows: (1) in this scheme, utilize the sleeve to be used for supporting the arm to slow down the fatigue of patient's arm. Simultaneously, the sleeve can carry out spacingly to the arm, especially children like the patient who moves, avoids breaking away from with the arm owing to various syringe needles that lead to of rocking, guarantees the security of hemodialysis in-process. Compare with traditional only with the syringe needle, the great improvement of this scheme stability in use also adopts magic subsides etc. to fix among the prior art, however, this type of fixed knot constructs the gas permeability not good, leads to user experience not good, and this scheme utilizes the great improvement gas permeability of sleeve for the travelling comfort of whole device improves.
(2) In this scheme, the reduction impurity that the sealing member can be great gets into to pouring into internally, reduces the anticoagulant and is polluted, simultaneously, can dismantle the injection tube of connection on the sealing member and can change, has avoided the whole change of the injection body, has reduced the replacement cost.
(3) In this scheme, utilize the controller to be used for being connected with outside hemodialysis machine, acquire patient's blood coagulation state, cerini dialyser cerini blood colour transform, pressure parameter change etc. the controller is used for controlling actuating mechanism work based on above information, and actuating mechanism drives the injection plate and moves to certain stroke, and then the volume of anticoagulant is poured into in control, improves the accuracy nature of anticoagulant injection volume, great having overcome the artifical inaccurate condition of anticoagulant that pours into, has guaranteed the precision of hemodialysis work.
Preferably, as an improvement, the driving mechanism comprises a motor, an outer shaft is coaxially fixed on an output shaft of the motor, an inner shaft is connected with the outer shaft in a threaded manner, and the inner shaft is fixedly connected with the injection plate.
Has the advantages that: the controller control motor rotates certain number of turns, again because outer axle and interior spindle thread are connected, drives outer axle and rotates certain number of turns when the motor rotates, then can control interior spindle upwards sliding distance, and then controls the upwards sliding distance of filling in the board to reach the purpose that the accurate control anticoagulant pours into.
Preferably, as an improvement, be fixed with the slider on the injection plate, open the spout on the injection body, the injection plate passes through slider and spout and the vertical sliding fit of injection body.
Has the advantages that: the injection plate utilizes the slide block and the slide groove to conduct guiding sliding in the upward or downward sliding process, and the probability of position deviation in the upward or downward sliding process of the injection plate is reduced.
Preferably, as a modification, the injection body is provided with an injection port, and the injection port is communicated with an injection valve.
Has the advantages that: the injection valve is in order to control the opening and closing of filling opening, and the operating personnel of being convenient for pours into a certain amount of anticoagulant into to pouring into the body into, and when the injection valve was sealed, it was internal to have effectively isolated the outside air and got into to pouring into, and it is internal to isolate impurity entering into simultaneously.
Preferably, as an improvement, be provided with on the body and be conical guide way, the sleeve is located the guide way, has along its circumference sliding connection on the sleeve to promote the axle, promotes an one end and offsets with the guide way, promotes the other end of axle and is fixed with the holding piece that is located the sleeve, promotes epaxial cover and is equipped with the elastic component, and the one end of elastic component is fixed on the sleeve, and the other end of elastic component is fixed and is promoted epaxially.
Has the advantages that: in the injection device use, can meet the patient of arm size difference, for better fixed arm, designed contraction structure in this scheme, it is specific: slide the sleeve in the direction way, at the slip in-process (towards the little one end motion of toper diameter), at this moment promote the axle and can receive the extrusion of direction way lateral wall, then promote the axle and can promote the holding piece towards the arm motion, and then carry out certain centre gripping to the arm, so fixed patient's that can be better arm, when the sleeve resets, the sleeve can take to promote the axle and reset, under the effect of spring, the holding piece breaks away from with the arm.
Preferably, as a modification, the holding piece is made of an elastic material.
Has the advantages that: by using the elastic material, on one hand, the diameter of the clamping arm can be finely adjusted, and on the other hand, the damage of the clamping piece to the arm can be reduced.
Preferably, as an improvement, be fixed with the stopper on the sleeve, open on the body has the spacing groove, stopper and spacing groove sliding fit.
Has the advantages that: through the cooperation of spacing groove and stopper to carry on spacingly to the sleeve.
Preferably, as an improvement, there is the guiding axle along its circumference horizontal sliding connection on the spacing ring, and the one end threaded connection that the body was kept away from to the guiding axle has the stopper.
Has the advantages that: at sleeve slip in-process, the guiding axle can lead to spacing ring and sleeve, avoids sleeve and spacing ring to take place the offset, when sleeve and spacing ring slip to a locating position, utilizes the stopper with sleeve locking, improves telescopic stability.
Drawings
Fig. 1 is an isometric view of an anticoagulant infusion device for hemodialysis in accordance with an embodiment of the present invention.
Fig. 2 is a plan view of an anticoagulant injection device for hemodialysis according to an embodiment of the present invention.
Fig. 3 is a sectional view taken along line E-E of fig. 2.
Fig. 4 is an enlarged view of an injector in an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a sleeve according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail below by way of specific embodiments:
reference numerals in the drawings of the specification include: the injection device comprises a body 11, a guide groove 111, a guide block 112, a cover plate 12, a storage cavity 121, an injection body 13, an injection plate 131, a motor 132, a sliding groove 133, an outer shaft 134, an inner shaft 135, a sleeve 14, a clamping piece 141, a pushing shaft 142, a spring 143, a limiting ring 15, a guide shaft 151, a limiting block 152, an injection nozzle 16, a sealing member 161, an injection port 17, an injection valve 171, a guide channel 18, a controller 21, a needle 31, an injection pipe 32 and a connecting head 33.
Example (b):
referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, an anticoagulant injection device for hemodialysis includes a body 11, an injection body 13 is fixed on the upper left side of the body 11 by bolts, an injection nozzle 16 is fixed on the injection body 13 by screws, the injection nozzle 16 is communicated with the injection body 13, an injection port 17 is communicated with the injection body 13, an injection valve 171 is communicated with the injection port 17, the injection valve 171 is fixedly connected with the injection body 13 by screws, an injection plate 131 is arranged in the injection body 13, a slide block is fixed on the injection plate 131 by screws, a slide groove 133 is formed on the injection body 13, and the injection plate 131 is vertically and slidably connected with the injection body 13 through the slide groove 133 and the slide block.
The injection nozzle 16 is detachably connected with a sealing member 161, in this embodiment, the sealing member 161 is made of rubber material, the injection nozzle 16 is communicated with the injection pipe 32, in this embodiment, one end of the injection pipe 32 is communicated with a connector 33, the connector 33 is inserted into the sealing member 161, the injection nozzle 16 is communicated with the injection pipe 32 by the connector 33, and the other end of the injection pipe 32 is communicated with the needle 31.
A driving mechanism is arranged below the injection plate 131, and in this embodiment, the driving mechanism includes a motor 132, an output shaft of the motor 132 is coaxially and fixedly connected with a hollow outer shaft 134, an inner shaft 135 is connected with the outer shaft 134 through internal threads, and an upper end of the inner shaft 135 is fixedly connected with the injection plate 131 through a bolt. Motor 132 electricity is connected with the controller 21 of fix with screw on body 11, and controller 21 is the singlechip in this embodiment, and the model of singlechip is: HT17-69 SAMPLE (Taobao ), in this example, the single chip microcomputer is electrically connected with the hemodialyzer. During specific work, the single chip microcomputer obtains the blood coagulation state of a patient, the blood color of a dialyzer, pressure parameter change and the like from the hemodialysis machine, the single chip microcomputer controls the motor 132 to work, the motor 132 drives the outer shaft 134 to rotate for a certain number of turns, and the distance that the outer shaft 134 drives the inner shaft 135 to move upwards or downwards can be controlled, namely the inner shaft 135 drives the injection plate 131 to move for a certain distance.
The body 11 is provided with a storage cavity 121 positioned at one side far away from the injection body 13, the upper part of the storage cavity 121 is provided with an opening, and a cover plate 12 for sealing the storage cavity 121 is fixed on the body 11 through bolts. Be used for storing the filling tube 32 in the storage chamber 121, make things convenient for operating personnel to obtain filling tube 32, be convenient for operating personnel to change.
As shown in fig. 3 and fig. 5, the supporting structure for supporting an arm on the body 11 includes a sleeve 14, a limiting block 152 is coaxially welded and fixed at one end of the sleeve 14, a guide block 112 is fixed at the other end of the sleeve 14, a guide groove 111 is formed on the body 11, the sleeve 14 is horizontally connected with the body 11 through the guide groove 111 and the guide block 112 in a sliding manner, a guide channel 18 is formed on the body 11, the sleeve 14 is located in the guide channel 18, the guide channel 18 is tapered in this embodiment, and the diameter of the end of the guide channel 18 close to the limiting ring 15 is larger than the diameter of the end far from the limiting ring 15.
There is pushing shaft 142 along its circumference horizontal sliding connection on the sleeve 14, and the one end that pushes shaft 142 is the inclined plane and offsets with the direction way 18, and the other end screw fixation that pushes shaft 142 has clamping piece 141 that is curved, and clamping piece 141 and pushing shaft 142 are four, and clamping piece 141 is made by elastic material, if: rubber. The pushing shaft 142 is sleeved with an elastic member, which is a spring 143 in this embodiment, one end of the spring 143 is fixed on the sleeve 14, and the other end of the spring 143 is fixed on the pushing shaft 142.
The vertical sliding connection in its circumference has guiding axle 151 on the spacing ring 15, and guiding axle 151 and body 11 fixed connection have stopper 152 on the guiding axle 151.
The specific implementation process is as follows:
the patient inserts an arm into the sleeve 14, and the nurse slides the sleeve 14 on the body 11 according to the size of the arm, and stops the sliding when the holding piece 141 holds the arm. During the sliding process, under the squeezing action of the guiding channel 18, the pushing shaft 142 will push the holding piece 141 to move toward the arm, so as to achieve the purpose of holding the arm. Meanwhile, the retainer ring 15 slides on the guide shaft 151, is guided by the guide shaft 151, and is locked with the sleeve 14 by the stopper 152 after clamping. The arm is placed in sleeve 14, can breathe freely to the arm to can also carry out certain fixed to the arm, guarantee not taking place easily of arm and rock, and then reduced the probability that syringe needle and arm break away from, especially like the children who move. Of course, the body 11 can also support the arms to relieve fatigue of the arms.
When puncturing is performed, the injection tube 32 is removed from the storage chamber 121, the injection tube 32 communicates the injection nozzle 16 with the injection tube 32 through the connector 33, and then the needle 31 punctures the vein of the patient.
During the injection of the anticoagulant, the injection valve 171 is opened, and the anticoagulant is injected into the injection body 13. During injection, the single chip microcomputer gets the blood coagulation state of the patient, the blood color change of the dialyzer, the pressure parameter change and the like from the hemodialysis machine, the single chip microcomputer controls the motor 132 to work, the motor 132 drives the outer shaft 134 to rotate for a certain number of turns, namely, the distance that the outer shaft 134 drives the inner shaft 135 to move upwards can be controlled, namely, the inner shaft 135 drives the injection plate 131 to move for a certain distance, for example: the injection plate 131 is slid upward by 1cm, and the amount of anticoagulant injected is 1 ml. After anticoagulant infusion is complete, motor 132 is again controlled to rotate outer shaft 134 in the opposite direction to reposition inner shaft 135 and infusion plate 131.
The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. An anticoagulant infusion device for hemodialysis, characterized in that: the arm support device comprises a body, wherein a support structure for placing an arm is arranged on the body, the support structure comprises a sleeve horizontally connected with the body in a sliding manner, and a limit ring is arranged on the sleeve;
the injection mechanism comprises an injection body, an injection nozzle is communicated with the injection body, a sealing piece is detachably connected to the injection nozzle, an injection pipe is detachably connected to the sealing piece, and the injection pipe is communicated with a needle head;
the injection body is internally and vertically connected with an injection plate in a sliding manner, a driving mechanism is arranged below the injection plate and electrically connected with a controller, and the controller is used for controlling the driving mechanism and controlling the movement stroke of the injection plate by the driving mechanism.
2. An anticoagulant infusion device for hemodialysis according to claim 1, wherein: the driving mechanism comprises a motor, an outer shaft is coaxially fixed on an output shaft of the motor, an inner shaft is in threaded connection with the outer shaft, and the inner shaft is fixedly connected with the injection plate.
3. An anticoagulant infusion device for hemodialysis according to claim 2, wherein: the injection plate is fixed with a sliding block, the injection body is provided with a sliding groove, and the injection plate is in vertical sliding fit with the injection body through the sliding block and the sliding groove.
4. An anticoagulant infusion device for hemodialysis according to claim 3, wherein: the injection body is provided with an injection port which is communicated with an injection valve.
5. An anticoagulant infusion device for hemodialysis according to any one of claims 1 to 4, wherein: be provided with on the body and be conical guide way, the sleeve is located the guide way, has along its circumference sliding connection to promote the axle on the sleeve, promotes an one end and offsets with the guide way, promotes the other end of axle and is fixed with the holding piece that is located the sleeve, promotes epaxial cover and is equipped with the elastic component, and the one end of elastic component is fixed on the sleeve, and the other end of elastic component is fixed and is promoted epaxially.
6. An anticoagulant infusion device for hemodialysis according to claim 5, wherein: the clamping piece is made of elastic material.
7. An anticoagulant infusion device for hemodialysis according to claim 6, wherein: a limiting block is fixed on the sleeve, a limiting groove is formed in the body, and the limiting block is in sliding fit with the limiting groove.
8. An anticoagulant infusion device for hemodialysis according to claim 7, wherein: the limiting ring is horizontally connected with a guide shaft in a sliding mode along the circumferential direction of the limiting ring, and one end, far away from the body, of the guide shaft is connected with a limiting block through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110634300.5A CN113289104A (en) | 2021-06-07 | 2021-06-07 | Anticoagulant injection device for hemodialysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110634300.5A CN113289104A (en) | 2021-06-07 | 2021-06-07 | Anticoagulant injection device for hemodialysis |
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Application publication date: 20210824 |