CN114129815B - Automatic deep vein thrombolysis device - Google Patents
Automatic deep vein thrombolysis device Download PDFInfo
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- CN114129815B CN114129815B CN202111442486.0A CN202111442486A CN114129815B CN 114129815 B CN114129815 B CN 114129815B CN 202111442486 A CN202111442486 A CN 202111442486A CN 114129815 B CN114129815 B CN 114129815B
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- 210000003462 vein Anatomy 0.000 title claims abstract description 21
- 230000002537 thrombolytic effect Effects 0.000 title claims abstract description 18
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 208000007536 Thrombosis Diseases 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 239000003146 anticoagulant agent Substances 0.000 description 8
- 229940127219 anticoagulant drug Drugs 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000001990 intravenous administration Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
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
- 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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
- A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/223—Multiway valves
-
- 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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/14212—Pumping with an aspiration and an expulsion action
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Pulmonology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to the field of medical instruments. The purpose is to provide a deep vein automatic thrombolysis device, which comprises a base, wherein the upper surface of the base is provided with two strip-shaped first mounting grooves for placing syringes and one second mounting groove which is used for mounting a three-way valve and is matched with the three-way valve; the first mounting groove is communicated with the second mounting groove; the upper surface of the base between the two first mounting grooves is provided with a pumping and exhausting driving mechanism, the pumping and exhausting driving mechanism comprises a screw rod arranged along the length direction of the base and a moving block arranged on the screw rod, and one end of the screw rod is in transmission connection with a driving motor; the moving block is sleeved on the screw rod and is in threaded fit with the screw rod. According to the invention, the moving block is driven by the screw, so that the operation of the injector is more stable when negative pressure is built, the risk of misoperation is reduced, the overall safety is improved, and the injector can be directly matched with the existing injector and the three-way valve, so that the assembly is flexible.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a deep vein automatic thrombolysis device.
Background
PICC technology is short for central venous catheterization through peripheral venipuncture, and is characterized in that a PICC catheter is used for performing puncture catheterization from a great vein, a median elbow vein and a head vein until the PICC catheter is inserted into the central vein. The PICC is mainly used for providing medium-term and long-term intravenous transfusion treatment for patients, and can avoid irreversible damage caused by long-term repeated puncture of veins, reduce the stimulation of medicaments to peripheral veins and provide a stable channel for long-term intravenous administration.
In the using process of the PICC tube, thrombolysis operation is an important maintenance step for ensuring the normal use of the PICC tube, and in the traditional thrombolysis step, the operation mainly comprises the following steps of connecting a PICC catheter, a dosing injector containing anticoagulant and a suction injector through a three-way valve; the three-way valve is regulated to a state that the PICC catheter is communicated with the suction injector, and the suction injector is utilized to extract the tube sealing medicine in the catheter; then the three-way valve is regulated to a state that the PICC catheter and the dosing injector are conducted, and anticoagulant is sucked into the PICC catheter by utilizing negative pressure formed in the PICC catheter; the above procedure was repeated until the thrombus was completely dissolved and eliminated.
When using aspiration syringes to construct negative pressure, the current regulations require more than 10ml syringes to buffer the aspiration force to avoid catheter rupture due to excessive aspiration force. However, in actual operation, the control of the suction force and the control of the suction speed are mainly based on the operation experience of medical staff, which increases a certain risk for thrombolysis operation. In addition, in order to avoid infection, the injector, the three-way valve and the like belong to disposable consumables, are not suitable for excessively complex design and excessively high cost, and can be directly matched with the existing consumables; for this reason, how to find an appropriate balance between improving the operation stability and controlling the cost is also a great difficulty in the art.
Disclosure of Invention
The invention aims to provide a deep vein automatic thrombolysis device which is stable and reliable in operation.
In order to achieve the aim of the invention, the invention adopts the following technical scheme: the automatic deep vein thrombolysis device comprises a base, wherein the upper surface of the base is provided with two strip-shaped first mounting grooves for accommodating a syringe and a second mounting groove which is used for mounting a three-way valve and is matched with the three-way valve; the first mounting groove is communicated with the second mounting groove;
the upper surface of the base between the two first mounting grooves is provided with a pumping and exhausting driving mechanism, the pumping and exhausting driving mechanism comprises a screw rod arranged along the length direction of the base and a moving block arranged on the screw rod, and one end of the screw rod is in transmission connection with a driving motor; the moving block is sleeved on the screw rod and is in threaded fit with the screw rod; the lower parts of the two sides of the moving block are provided with inverted trapezoid guide blocks, the upper surfaces of the bases of the two sides of the screw are also provided with guide grooves extending along the length direction of the screw, and the guide blocks are matched with the guide grooves and are clamped in the guide grooves; the moving block is also provided with a connecting rod which is used for being connected with a piston handle of the injector.
Preferably, the driving motor is electrically connected with a controller, and the controller is installed inside the base; the rear side of base upper surface is provided with operating unit and display element, display element and operating unit respectively with the controller electric connection.
Preferably, the display unit and the operation unit are constituted by a touch display screen.
Preferably, a mounting round hole is formed in the center of the moving block, a driving ring is arranged in the mounting round hole, the driving ring and the moving block form running fit, and the screw rod penetrates through the ring hole of the driving ring and forms threaded fit with the driving ring; the pressure limiting assembly comprises an adjusting hole which is arranged on one side surface of the moving block and transversely penetrates through the mounting round hole, an adjusting bolt is adapted to the outer end of the adjusting hole, the adjusting bolt is in threaded fit with the adjusting hole, and a pressure limiting spring and a pressure limiting ball are sequentially arranged in the adjusting hole at the inner end of the adjusting bolt along the direction away from the adjusting bolt; the side wall of the driving ring is provided with an arc-shaped groove matched with a pressure limiting ball, and the pressure limiting ball is propped against the arc-shaped groove through a pressure limiting spring;
the upper surface of base still is provided with the position detection sensor that is used for detecting the movable block position, position detection sensor and controller electric connection.
Preferably, a circle of annular edges are arranged on the side walls at two ends of the driving ring along the circumferential direction, and the moving block is clamped between the two annular edges of the driving ring.
Preferably, the connecting rod comprises a crank arm section and a chuck section, a U-shaped groove is formed in the top of the moving block, and one end, far away from the chuck section, of the crank arm section is fixed in the U-shaped groove through a connecting screw; the chuck section is Y-shaped.
Preferably, an adapter pad is arranged in the first mounting groove, the outer edge of the adapter pad is matched with the first mounting groove, and a positioning groove matched with the type of the injector and used for clamping the injector is arranged on the adapter pad.
Preferably, the second installation groove is Y-shaped, the upper surfaces of the bases corresponding to the Y-shaped bifurcation of the second installation groove are respectively provided with a cutting-off assembly, the cutting-off assembly comprises a mounting frame in a shape like a Chinese character 'ji', one end of the mounting frame is hinged with the base, and the other end of the mounting frame is detachably connected with the base through a locking piece; the top of mounting bracket is provided with miniature electric putter, miniature electric putter's output is down, and the tip is provided with and second mounting groove matched with floodgate head.
Preferably, the locking piece is a magnetic adsorption piece.
The beneficial effects of the invention are concentrated in that: through screw rod drive movable block for when constructing the negative pressure, the operation to the syringe is more steady, has reduced the maloperation risk, has improved holistic security, and can directly accomplish general match with current syringe, three-way valve, the group is joined in marriage in a flexible way. Specifically, in the use process, the three-way valve is arranged in the second mounting groove and is assembled with the PICC catheter; then a syringe containing anticoagulant and an evacuated suction syringe are respectively installed in the first installation groove, and after the syringe is fixed, the syringe is connected with the three-way valve. Then the driving motor stably operates in a preset suction mode, the driving motor drives the screw rod to move, the screw rod drives the moving block to move along the guide groove in the rotating process, and the piston handle of the injector is driven to move through the connecting rod, so that suction action is realized, and negative pressure is built; after the negative pressure construction is completed, the flow direction of the three-way valve is switched, and anticoagulant is automatically sucked into the PICC through the negative pressure in the PICC; when the thrombus is serious, the steps are repeated until the thrombus is completely dissolved, and the observation of the thrombus condition can be carried out in combination with real-time ultrasonic detection. Compared with the traditional mode of operating by medical staff, the invention reduces the operation difficulty and the error risk, lightens the labor intensity of the medical staff, can directly utilize the existing injector and the three-way valve, and is extremely convenient to use.
Drawings
FIG. 1 is a schematic view of the structure of the present invention in a top view;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic view showing the internal structure of a preferred embodiment of the moving block;
FIG. 4 is a schematic diagram of the structure of the drive ring in a side view;
FIG. 5 is a schematic view of the structure of the cutoff assembly;
fig. 6 is a schematic structural view of the adapter pad.
Detailed Description
1-6, the deep vein automatic thrombolysis device comprises a base 1, wherein the base 1 can be made of different materials such as plastic, stainless steel and the like, and the plastic is preferable, so that the deep vein automatic thrombolysis device has the advantages of light weight, high strength, corrosion resistance and the like. The specific shape and the like adopted by the base 1 have sufficient design margin according to the specific design requirements of the product model, and for example, it is possible to adopt a round shape, a square shape, a rectangular shape and the like, as shown in fig. 1, that is, to adopt a rectangular base 1.
In order to facilitate the installation of the three-way valve 3 and the syringe 0, as shown in fig. 1, the upper surface of the base 1 of the present invention is provided with two elongated first installation grooves 2 for receiving the syringe 0 and one second installation groove 4 for installing the three-way valve 3, which is matched with the three-way valve 3. The first mounting groove 2 is communicated with the second mounting groove 4, so that the connection of the syringe 0 and the three-way valve 3 is facilitated. The two first mounting grooves 2 are used for mounting a syringe containing anticoagulant and a suction syringe respectively. The shape of the second mounting groove 4 is matched with the three-way valve 3, the commonly used three-way valve 3 can be a traditional hand-rotating three-way valve, and the switching of the conducting direction of the three-way valve is realized through controlling a knob on the three-way valve. But in order to improve the automation control level and reduce the electric control difficulty, the three-way valve 3 can also be a silica gel three-way pipe, and the on-off of the three-way pipe is directly controlled through a cutting-off component arranged on the base 1 so as to realize the function of the three-way valve 3.
As shown in fig. 1 and 5, the second mounting groove 4 is Y-shaped, the upper surfaces of the bases 1 corresponding to two branches of the Y-shape of the second mounting groove 4 are respectively provided with a cutting assembly, the cutting assembly comprises a mounting frame 23 in a shape like a Chinese character 'ji', one end of the mounting frame 23 is hinged with the base 1, the other end of the mounting frame is detachably connected with the base 1 through a locking piece 24, and the locking piece 24 can be in the form of a snap fastener, a fastening tape or the like, or can be in the form of a magnetic adsorption sheet. The top of mounting bracket 23 is provided with miniature electric putter 25, miniature electric putter 25's output is down, and the tip is provided with the floodgate head 26 that cooperatees with second mounting groove 4. When the corresponding passage needs to be cut off, the output end of the miniature electric push rod 25 extends out to drive the gate head 26 to gate off the three-way pipe.
In the use process of the invention, considering that the types of the syringes 0 used by each use terminal are greatly different, in order to improve the overall universality, the invention adapts to the syringes 0 of different types, and is combined with the description of fig. 1 and 6, an adapter pad 21 is arranged in the first mounting groove 2, the outer edge of the adapter pad 21 is matched with the first mounting groove 2, the first mounting groove 2 is generally provided with a long groove with a square section, the adapter pad 21 is clamped in the first mounting groove 2, the adapter pad 21 is provided with a positioning groove 22 matched with the type of the syringe 0 and used for clamping the syringe 0, the specific shape of the positioning groove 22 is used for realizing stable clamping and fixing of the syringe 0, and the functions of other parts are not influenced, and the adapter pad 21 is generally provided with a low-elastic hard rubber pad. The invention can be equipped with several adapter pads 21 for different types of syringes 0 to meet different use requirements.
To achieve an automated pump drainage, a negative pressure is built up. As shown in fig. 1-4, a pumping driving mechanism is arranged on the upper surface of the base 1 between the two first mounting grooves 2, the pumping driving mechanism comprises a screw 5 arranged along the length direction of the base 1 and a moving block 6 arranged on the screw 5, and one end of the screw 5 is in transmission connection with a driving motor 7. The moving block 6 is sleeved on the screw 5 and is in threaded fit with the screw 5, so that a screw-nut pair structure is formed. The movement of the moving block 6 is controlled to be stable by the action of the driving motor 7. The driving motor 7 adopts a stepping motor, so that the control precision is higher. In order to improve the stability of the movement of the moving block 6, the lower parts of the two sides of the moving block 6 are provided with inverted trapezoid guide blocks 8, the upper surfaces of the bases 1 on the two sides of the screw 5 are also provided with guide grooves 9 extending along the length direction of the screw 5, and the guide blocks 8 are matched with the guide grooves 9 and are clamped in the guide grooves 9. The movable block 6 is also provided with a connecting rod 10 for connecting with a piston handle of the syringe 0. The specific shape and the fixing mode of the connecting rod 10 are only required to meet the pushing of piston handles of various types, as shown in fig. 1 and 2, the connecting rod 10 comprises a crank arm section and a chuck section, a U-shaped groove is formed in the top of the moving block 6, one end, far away from the chuck section, of the crank arm section is fixed in the U-shaped groove through a connecting screw, and the chuck section is Y-shaped.
In the using process, the three-way valve 3 is arranged in the second mounting groove 4 and is assembled with the PICC catheter; then, a syringe 0 containing anticoagulant (i.e., the upper syringe 0 in fig. 1) and an evacuated suction syringe 0 (i.e., the lower syringe 0 in fig. 1) are respectively installed in the first installation groove 2, and after being fixed, the syringe 0 is connected to the three-way valve 3. Then the driving motor 7 stably runs in a preset suction mode, the driving motor 7 drives the screw rod 5 to move, the screw rod 5 drives the moving block 6 to move along the guide groove 9 in the rotating process, and then the connecting rod 10 drives the piston handle of the injector 0 to move, so that suction action is realized, and negative pressure is built; after the negative pressure construction is completed, the flow direction of the three-way valve 3 is switched, and anticoagulant is automatically sucked into the PICC through the negative pressure in the PICC; when the thrombus is serious, the steps are repeated until the thrombus is completely dissolved, and the observation of the thrombus condition can be carried out in combination with real-time ultrasonic detection. Compared with the traditional mode of operating by medical staff, the invention reduces the operation difficulty and the error risk, lightens the labor intensity of the medical staff, and can directly utilize the existing injector 0 and the three-way valve 3, thereby being extremely convenient to use.
Of course, to realize the electric control automatic control of each component, obviously, the invention should also be provided with a controller, and the controller only needs to adopt a small-sized singlechip due to simple overall control logic. The driving motor 7, the miniature electric push rod 25 and other electric control components are electrically connected with a controller, and the controller is arranged inside the base 1. An operation unit 11 and a display unit 12 are disposed on the rear side of the upper surface of the base 1, and the display unit 12 and the operation unit 11 are respectively electrically connected with a controller. The display unit 12 may be an LCD display, an LED display, or the like, or a tube display; the operation unit 11 may be a key-type operation unit, and the operation unit 11 is used as a man-machine interaction interface, so that a user can set various parameters in real time, for example: pumping volume, three-way valve 3 switching time, etc. to form complete control logic. In order to further improve the convenience of operation, the display unit 12 and the operation unit 11 are constituted by touch display screens.
In addition, since the aspiration process of the syringe 0 constructing the negative pressure is affected by the thrombus length, thrombus strength, other practical factors, etc., the preset aspiration volume, etc. may not be fully adapted to the requirement of the negative pressure aspiration, for example: the volume of each suction is preset to be 2ml, and the common thrombus has lower blockage, so that the constructed negative pressure meets the requirement; however, in the case of severe thrombosis, excessive negative pressure may be generated, which may cause the PICC catheter to be burdened. Therefore, in order to further improve the safety of the invention in the application process, the invention can also have a pressure limiting function, namely, the invention has a power tripping function when the resistance applied to the piston handle is overlarge in the process of pushing the piston handle.
The specific design scheme is as follows: as shown in fig. 3, the center of the moving block 6 is provided with a mounting round hole, a driving ring 13 is arranged in the mounting round hole, the driving ring 13 and the moving block 6 form a running fit, in order to ensure the stability of the driving ring 13 in the mounting round hole, as shown in fig. 4, the side walls at two ends of the driving ring 13 are provided with a circle of annular edges 20 along the circumferential direction, and the moving block 6 is clamped between the two annular edges 20 of the driving ring 13. The moving block 6 of the present invention does not directly form a screw thread fit with the screw 5, but the screw 5 is inserted into the annular hole of the driving ring 13 and forms a screw thread fit with the driving ring 13. Under normal conditions, the moving block 6 is locked with the driving ring 13, so that power transmission can be realized, and the moving block 6 is driven to move. But when the resistance is too large, the power is released by the disengagement (relative rotation) of the driving ring 13 and the moving block 6.
In order to achieve the above function, as shown in fig. 4, a pressure limiting assembly is further disposed on one side of the moving block 6, the pressure limiting assembly includes an adjusting hole 14 disposed on one side of the moving block 6 and penetrating through the mounting circular hole in a transverse direction, an adjusting bolt 15 is adapted to the outer end of the adjusting hole 14, the adjusting bolt 15 is in threaded engagement with the adjusting hole 14, and a pressure limiting spring 16 and a pressure limiting ball 17 are sequentially disposed in the adjusting hole 14 at the inner end of the adjusting bolt 15 in a direction away from the adjusting bolt 15. The side wall of the driving ring 13 is provided with an arc-shaped groove 18 matched with a pressure limiting ball 17, the pressure limiting ball 17 is propped against the arc-shaped groove 18 through a pressure limiting spring 16, and the pressure limiting spring 16 is a soft spring with low rigidity.
Under normal use, the pressure limiting spring 16 presses the pressure limiting ball 17 into the arc-shaped groove 18, and the driving ring 13 and the moving block 6 can be integrated. When the resistance is excessive, the pressure limiting ball 17 is folded back into the adjusting hole 14, at the moment, the moving block 6 and the driving ring 13 rotate relatively, and the rotation of the screw 5 does not provide driving force any more. By adjusting the adjusting bolt 15, the compression amount of the pressure limiting spring 16 can be changed, and the magnitude of the pressure limiting value can be changed. When the driving ring 13 no longer provides driving force to the moving block 6, it is indicated that the negative pressure is too high, and at this time, the conduction direction of the three-way valve 3 should be switched to inhale anticoagulant. In order to detect whether the driving ring 13 continues to provide the driving force to the moving block 6, the simplest manner of the present invention is that the upper surface of the base 1 is further provided with a position detecting sensor 19 for detecting the position of the moving block 6, and the position detecting sensor 19 is electrically connected to the controller. By detecting whether the moving block 6 moves, it is possible to know whether the negative pressure limit is reached.
Claims (7)
1. An automatic thrombolysis device for deep veins, which is characterized in that: the device comprises a base (1), wherein the upper surface of the base (1) is provided with two strip-shaped first mounting grooves (2) for placing the syringe (0) and a second mounting groove (4) which is used for mounting the three-way valve (3) and is matched with the three-way valve (3); the first mounting groove (2) is communicated with the second mounting groove (4);
the upper surface of the base (1) between the two first mounting grooves (2) is provided with a pumping and exhausting driving mechanism, the pumping and exhausting driving mechanism comprises a screw rod (5) arranged along the length direction of the base (1) and a moving block (6) arranged on the screw rod (5), and one end of the screw rod (5) is in transmission connection with a driving motor (7); the moving block (6) is sleeved on the screw (5) and is in threaded fit with the screw (5); the lower parts of the two sides of the moving block (6) are provided with inverted trapezoid guide blocks (8), the upper surfaces of the bases (1) on the two sides of the screw (5) are also provided with guide grooves (9) extending along the length direction of the screw (5), and the guide blocks (8) are matched with the guide grooves (9) and are clamped in the guide grooves (9); the moving block (6) is also provided with a connecting rod (10) which is used for being connected with a piston handle of the injector (0);
the driving motor (7) is electrically connected with a controller, and the controller is arranged in the base (1); an operation unit (11) and a display unit (12) are arranged on the rear side of the upper surface of the base (1), and the display unit (12) and the operation unit (11) are respectively and electrically connected with a controller;
the center of the moving block (6) is provided with a mounting round hole, a driving ring (13) is arranged in the mounting round hole, the driving ring (13) and the moving block (6) form a running fit, and the screw (5) is arranged in the annular hole of the driving ring (13) in a penetrating manner and forms a threaded fit with the driving ring (13); one side of the moving block (6) is further provided with a pressure limiting assembly, the pressure limiting assembly comprises an adjusting hole (14) which is arranged on one side surface of the moving block (6) and transversely penetrates through the mounting round hole, the outer end of the adjusting hole (14) is provided with an adjusting bolt (15) in an adapting mode, the adjusting bolt (15) is in threaded fit with the adjusting hole (14), and a pressure limiting spring (16) and a pressure limiting ball (17) are sequentially arranged in the adjusting hole (14) at the inner end of the adjusting bolt (15) along the direction away from the adjusting bolt (15); an arc-shaped groove (18) matched with a pressure limiting ball (17) is formed in the side wall of the driving ring (13), and the pressure limiting ball (17) is propped against the arc-shaped groove (18) through a pressure limiting spring (16);
the upper surface of base (1) still is provided with the position detection sensor (19) that are used for detecting movable block (6) position, position detection sensor (19) and controller electric connection.
2. The deep vein automatic thrombolysis device of claim 1, wherein: the display unit (12) and the operation unit (11) are composed of touch display screens.
3. The deep vein automatic thrombolysis device of claim 2, wherein: the side walls at two ends of the driving ring (13) are provided with a circle of annular edges (20) along the circumferential direction, and the moving block (6) is clamped between the two annular edges (20) of the driving ring (13).
4. A deep vein automatic thrombolysis device as claimed in claim 3 wherein: the connecting rod (10) comprises a crank arm section and a chuck section, a U-shaped groove is formed in the top of the moving block (6), and one end, far away from the chuck section, of the crank arm section is fixed in the U-shaped groove through a connecting screw; the chuck section is Y-shaped.
5. The deep vein automatic thrombolysis device as claimed in claim 4, wherein: an adapter pad (21) is arranged in the first mounting groove (2), the outer edge of the adapter pad (21) is matched with the first mounting groove (2), and a positioning groove (22) matched with the type of the injector (0) and used for clamping the injector (0) is arranged on the adapter pad (21).
6. The deep vein automatic thrombolysis device of claim 5, wherein: the second mounting groove (4) is Y-shaped, a cutting assembly is arranged on the upper surface of the base (1) corresponding to two Y-shaped branches of the second mounting groove (4), the cutting assembly comprises a mounting frame (23) in a shape like a Chinese character 'ji', one end of the mounting frame (23) is hinged with the base (1), and the other end of the mounting frame is detachably connected with the base (1) through a locking piece (24); the top of mounting bracket (23) is provided with miniature electric push rod (25), the output of miniature electric push rod (25) is down, and the tip is provided with floodgate head (26) with second mounting groove (4) matched with.
7. The deep vein automatic thrombolysis device of claim 6, wherein: the locking piece (24) is a magnetic adsorption piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111442486.0A CN114129815B (en) | 2021-11-30 | 2021-11-30 | Automatic deep vein thrombolysis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111442486.0A CN114129815B (en) | 2021-11-30 | 2021-11-30 | Automatic deep vein thrombolysis device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114129815A CN114129815A (en) | 2022-03-04 |
| CN114129815B true CN114129815B (en) | 2024-02-02 |
Family
ID=80389759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111442486.0A Active CN114129815B (en) | 2021-11-30 | 2021-11-30 | Automatic deep vein thrombolysis device |
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| CN114129815A (en) | 2022-03-04 |
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