CN109602999A - A kind of picc indwelling tube continues feed flow preventing clogging up device and its feed liquid method - Google Patents
A kind of picc indwelling tube continues feed flow preventing clogging up device and its feed liquid method Download PDFInfo
- Publication number
- CN109602999A CN109602999A CN201811474969.7A CN201811474969A CN109602999A CN 109602999 A CN109602999 A CN 109602999A CN 201811474969 A CN201811474969 A CN 201811474969A CN 109602999 A CN109602999 A CN 109602999A
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- China
- Prior art keywords
- feed flow
- plemum
- feed
- pipe fitting
- picc
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Classifications
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- 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
- A61M39/24—Check- or non-return 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
- A61M5/145—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
- 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
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
-
- 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
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
- A61M2005/1652—Filter with duct, e.g. filtering element incorporated in a flow line, tube, duct
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
Abstract
The present invention relates to infusion fields more particularly to a kind of picc indwelling tube to continue feed flow preventing clogging up device and its feed liquid method.A kind of picc indwelling tube continues feed flow preventing clogging up device, it is characterized by comprising sequentially connected feed flow tube joint assembly, positive pressure chamber component and picc indwelling tube joint assemblies, wherein for feed flow tube joint assembly for being connected with for fluid catheter, feed flow tube joint assembly includes unidirectional mouth valve；The side of positive pressure chamber component is arranged in feed flow tube joint assembly, and the plemum (7) of positive pressure chamber component is connected with the feed pathway of feed flow tube joint assembly by unidirectional mouth valve；The other side of positive pressure chamber component is arranged in picc indwelling tube joint assembly, it is opposite with feed flow tube joint assembly, the feed pathway of picc indwelling tube joint assembly is connected with plemum, can be implemented as picc indwelling tube and continues feed flow, and prevents blood backflow from blocking indwelling tube.
Description
Technical field
The present invention relates to infusion fields more particularly to a kind of picc indwelling tube to continue feed flow preventing clogging up device and its feed flow side
Method.
Background technique
PICC is the abbreviation through periphery venipuncture central vein catheter, in order to protect the blood vessel of patient's arm, by chemotherapy
Conduit is protruded into through one kind close to Cardiac venacava from the vein of patient's arm and sets pipe mode by drug Safety Injection, doctor.
The intermittent phase is treated, most of Tumor Patients after Chemotherapy can go home to raise, their cokes to the indwelling tube various degrees of carrying
Consider, worries to cause the generation of complication to be formed in indwelling tube if blood back causes indwelling blockage because nursing is improper after going home
Clot enters blood and forms thrombus, causes more serious health problem or threat to life.
The anticlogging problems demand of indwelling tube solves, as the patent of Publication No. CN104127934A discloses a kind of indwelling
Pipe conduit conversion infusion apparatus comprising infusion set and the positive pressure component for preventing thrombosis, plemum include the switching of inner cavity
Component, can be realized the switching of fluid path between normal dose infusion and buffering infusion, but switch the structure of fluid path and complicated for operation；
The patent of Publication No. CN103861205A discloses a kind of anti-blood back venous detaining needle comprising plemum, trimmer valve and connects
The driving device of first-class component, plemum is the components such as spring, can prevent blood backflow, but spring etc. to a certain extent
Member compression rate of release is uncontrollable, and the presence of trimmer valve also can not overcome the problems, such as that completely feed liquor is non-uniform, generally uses
The patient body situation of picc indwelling Manifold technology is fainter, poor to the ability to bear that feed speed is unstable, certain
It can not complete to meet disease Man's Demands in degree.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of picc indwelling tubes to continue feed flow preventing clogging up device.Tool
Body summary of the invention is as follows:
A kind of picc indwelling tube continues feed flow preventing clogging up device, including sequentially connected feed flow tube joint assembly, positive pressure component and
Picc indwelling tube joint assembly, wherein for feed flow tube joint assembly for being connected with for fluid catheter, feed flow tube joint assembly includes single
To mouth valve；The side of positive pressure chamber component, the plemum and feed flow pipe fitting group of positive pressure chamber component is arranged in feed flow tube joint assembly
The feed pathway of part is connected by unidirectional mouth valve；The other side of positive pressure chamber component is arranged in picc indwelling tube joint assembly, with confession
Liquid pipe connection component is opposite, and the feed pathway of picc indwelling tube joint assembly is connected with plemum.
Further, feed flow tube joint assembly includes feed flow pipe fitting, and feed pathway is arranged on central axes in feed flow pipe fitting,
The diameter of the feed pathway of feed flow pipe fitting is equal to the outer diameter of liquid supply pipe, and unidirectional mouth is arranged in the feed pathway of feed flow pipe fitting
Valve, unidirectional mouth valve include valve block, connecting rod, annular valve nozzle, compressed spring, feed flow pipe fitting feed pathway far from positive pressure group
Annular groove is arranged in the inner wall of one end of part, also accommodates compressed spring in annular groove, one end of compressed spring and annular groove are close
The inner wall of plemum side is mutually fixed, and the other end is mutually fixed with the annular valve nozzle outer rim being contained in annular groove；In annular valve nozzle
The diameter of edge is less than the outer diameter of liquid supply pipe, and the side of the annular valve nozzle inner edge surface phase plemum is connected with one end of connecting rod,
Valve block is connected with the other end of connecting rod, and the shape of valve block is connected to the shape phase of plemum side with feed flow pipe fitting feed pathway
Matching, can be realized the opening and closing of feed flow pipe fitting feed pathway.
Further, positive pressure chamber component includes shell, control room, micro drives device, piston, screw rod, and shell is positive six
Face body, the internal plemum for forming cylinder, the axis perpendicular of the feed pathway of the axis and feed flow pipe fitting of plemum,
Setting piston and screw rod, piston are connect with screw flight in plemum, screw rod and plemum coaxial line, and one end of screw rod is stretched out just
Pressure chamber is connected with micro drives device, and micro drives device is arranged in control room, and micro drives device includes micro cell, resonance
Device, integrated circuit, micro-step motor, the rotary shaft connecting screw of micro-step motor, micro cell is for providing electric energy, through collecting
Make the at the uniform velocity intermittent rotation of stepper motor at the frequency dividing effect of circuit, for realizing picc indwelling tube continuous liquid supply；Outside control room
Side is additionally provided with miniature display control screen, the button of miniature display control screen setting control micro drives device opening and closing.
Further, picc indwelling tube joint assembly includes transition chamber thereof, picc indwelling pipe fitting, transition chamber thereof and positive pressure
The housing sidewall of room removably connects, and the side wall that transition chamber thereof is connected with the shell of plemum is set far from one end of control room
Fluid hole is set, fluid hole makes plemum be connected with transition chamber thereof；Filter chamber is set in transition chamber thereof, setting filtering in filter chamber
Block 3, the side wall of filter chamber are arranged multiple feed liquor micropores, transition chamber thereof far from the side wall of plemum integrally formed with picc indwelling
Pipe fitting, picc indwelling pipe fitting are the taper joint for being inserted into picc indwelling tube, and the feed liquor of picc indwelling pipe fitting is logical
Road is connected with the filter chamber of transition chamber thereof.
Further, the plemum side opposite with piston is provided with infrared sensor, red for detecting the position of piston
Outer sensor is connected with integrated circuit, and acoustic-optic alarm is arranged on micro drives device, when infrared sensor detects piston
When moving to extreme position, the miniature display control screen of control room is alarmed, and replacement picc indwelling tube is prompted to continue feed flow anti-clogging
Device.
Further, compressed spring, connecting rod are disposed as multiple.
In use, micro-step motor controls piston motion to control room side, by the liquid outlet of picc indwelling pipe fitting
Upwards, then liquid supply pipe is inserted into the feed pathway of feed flow pipe fitting, liquid supply pipe pushes annular valve nozzle inwardly to move, annular
Valve nozzle fully opens the feed pathway of feed flow pipe fitting with moving valve plate, and liquid enters plemum, after air emptying in plemum,
Liquid enters transition chamber thereof through fluid hole, enters picc indwelling pipe fitting using filter block, will after the emptying of adapter cavity room air
Picc indwelling pipe fitting is inserted into picc indwelling tube；
After liquid supply pipe feed flow, liquid supply pipe is detached, valve block restores sealing state under the action of compressed spring, starts miniature drive
Dynamic device makes motor drive screw rod rotation, to be rotationally advancing with piston, piston press positive pressure indoor liquid forms positive pressure,
It can be provided for indwelling tube and to continue at the uniform velocity feed flow up to 6-24 hours；
When infrared sensor detects piston motion to extreme position, the miniature display control screen alarm of control room is prompted more
It changes picc indwelling tube and continues feed flow preventing clogging up device.
The housing sidewall of transition chamber thereof and plemum removably connects, can be by adapter cavity when replacing picc indwelling tube
Room is separated with plemum, replaces the filter block of transition chamber thereof, and recycling can be achieved after keeping the device sterilized.
Beneficial effect
Picc indwelling tube of the invention continues feed flow preventing clogging up device, including sequentially connected feed flow tube joint assembly, plemum
Component and picc indwelling tube joint assembly, wherein feed flow tube joint assembly can be connected with liquid supply pipe, can be led to by liquid supply pipe
It crosses the device and realizes normal feed flow function, realize conveying medical fluid for patient.
Picc indwelling tube of the invention continues feed flow preventing clogging up device, including positive pressure chamber component, and positive pressure chamber component is just
Pressure chamber is connected with the feed pathway of feed flow tube joint assembly by unidirectional mouth valve, after liquid supply pipe completes feed flow, operator's energy
Enough directly to remove liquid supply pipe, the feed pathway of feed flow tube joint assembly realizes the sealing of plemum by unidirectional mouth valve automatically, leads to
The positive pressure feed flow of plemum is crossed, feed flow can be continued for picc indwelling tube to which anti-return blood blocks picc indwelling tube.
Picc indwelling tube of the invention continues feed flow preventing clogging up device, and positive pressure chamber component includes shell, control room, miniature
Driving device, piston, screw rod, micro drives device can control liquid supply speed, are able to drive piston and continue at the uniform velocity to squeeze positive pressure
Indoor liquid is embodied as picc indwelling tube continuously and smoothly's feed flow, improves the comfort level of patient.
Picc indwelling tube of the invention continues feed flow preventing clogging up device, including miniature display control screen, miniature display control
The button of screen setting control micro drives device opening and closing, can be realized automatic control；And the plemum side opposite with piston is set
It is equipped with infrared sensor, for detecting the position of piston, infrared sensor is connected with integrated circuit, is arranged on micro drives device
Acoustic-optic alarm, when infrared sensor detects piston motion to extreme position, the miniature display control screen report of control room
It is alert, it prompts replacement picc indwelling tube to continue feed flow preventing clogging up device, makes the device use safer.
Picc indwelling tube of the invention continues feed flow preventing clogging up device, includes filter block in transition chamber thereof, can eliminate
Microbubble etc. in liquid, improves the safety of feed flow；And the housing sidewall of its transition chamber thereof and plemum removably connects,
When replacing picc indwelling tube, transition chamber thereof can be separated with plemum, replace the filter block of transition chamber thereof, make the device through disappearing
Recycling can be achieved after poison.
Picc indwelling tube of the invention continues feed flow preventing clogging up device, can be with one gymnastics of normal feed flow (infusion) link
Make, does not have to be additionally in advance plemum preloaded with liquid, nurse, family can grasp operating method per capita, have good practicability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that picc indwelling tube of the invention continues feed flow preventing clogging up device.
Fluid hole 1, picc indwelling pipe fitting 2, filter block 3, filter chamber 4, feed liquor micropore 5, transition chamber thereof 6, plemum 7,
Shell 8, control room 9, miniature display control screen 10, micro drives device 11, piston 12, screw rod 13, valve block 14, connecting rod 15,
Annular valve nozzle 16, annular groove 17, compressed spring 18, feed flow pipe fitting 19, infrared sensor 20.
Specific embodiment
Advantages of the present invention, feature and reach the method for the purpose will be bright by attached drawing and subsequent detailed description
Really.
A kind of picc indwelling tube continues feed flow preventing clogging up device, including sequentially connected feed flow tube joint assembly, plemum
Component and picc indwelling tube joint assembly, wherein feed flow tube joint assembly with for fluid catheter for being connected, feed flow tube joint assembly
Including unidirectional mouth valve；The side of positive pressure chamber component, the plemum 7 and liquid supply pipe of positive pressure chamber component is arranged in feed flow tube joint assembly
The feed pathway of joint assembly is connected by unidirectional mouth valve；The another of positive pressure chamber component is arranged in picc indwelling tube joint assembly
Side, opposite with feed flow tube joint assembly, the feed pathway of picc indwelling tube joint assembly is connected with plemum.
Wherein, feed flow tube joint assembly includes feed flow pipe fitting 19, and feed pathway is arranged on 19 central axes in feed flow pipe fitting,
The diameter of the feed pathway of feed flow pipe fitting 19 is equal to the outer diameter of liquid supply pipe, and is arranged in the feed pathway of feed flow pipe fitting 19 single
To mouth valve, unidirectional mouth valve includes valve block 14, connecting rod 15, annular valve nozzle 16, compressed spring 18, in the feed liquor of feed flow pipe fitting 19
Annular groove 17 is arranged in the inner wall of the one end of channel far from positive pressure component, and compressed spring 18 is also accommodated in annular groove 17, compresses bullet
Inner wall of the one end of spring 18 with annular groove 17 close to 7 side of plemum is mutually fixed, the other end and the ring being contained in annular groove 17
16 outer rim of shape valve nozzle is mutually fixed；The diameter of annular 16 inner edge of valve nozzle is less than the outer diameter of liquid supply pipe, annular 16 inner edge surface of valve nozzle
The side of phase plemum 7 is connected with one end of connecting rod 15, and valve block 14 is connected with the other end of connecting rod 15, the shape of valve block 14
The shape for being connected to 7 side of plemum with 19 feed pathway of feed flow pipe fitting matches, and it is logical to can be realized 19 feed liquor of feed flow pipe fitting
The opening and closing in road.
Wherein, positive pressure chamber component includes shell 8, control room 9, micro drives device 11, piston 12, screw rod 13, and shell 8 is
Regular hexahedron, it is internal to form cylindrical plemum 7, the axis of the feed pathway of the axis and feed flow pipe fitting 19 of plemum 7
Line is perpendicular, and setting piston 12 and screw rod 13, piston 12 are threadedly coupled with screw rod 13 in plemum 7, and screw rod 13 and plemum 7 are total
Axis, one end of screw rod 13 stretch out plemum 7 and are connected with micro drives device 11, and micro drives device 11 is arranged in control room 9
Interior, micro drives device 11 includes micro cell, resonator, integrated circuit, micro-step motor, the rotary shaft of micro-step motor
Connecting screw 13, for micro cell for providing electric energy, the frequency dividing effect through integrated circuit makes the at the uniform velocity intermittent rotation of stepper motor, uses
In realization picc indwelling tube continuous liquid supply；Miniature display control screen 10, miniature display control screen 10 are additionally provided on the outside of control room 9
The button that control micro drives device 11 opens and closes is set.
Wherein, picc indwelling tube joint assembly includes transition chamber thereof 6, picc indwelling pipe fitting 2, transition chamber thereof 6 and positive pressure
8 side wall of shell of room 7 removably connects, and the side wall that transition chamber thereof 6 is connected with the shell 8 of plemum 7 is far from control room 9
Fluid hole 1 is arranged in one end, and fluid hole 1 makes plemum 7 be connected with transition chamber thereof 6；Filter chamber 4, filtering are set in transition chamber thereof 6
Filter block 3 is set in chamber 4, and the side wall of filter chamber 4 is arranged multiple feed liquor micropores 5, on side wall of the transition chamber thereof 6 far from plemum 7
Integrally formed with picc indwelling pipe fitting 2, picc indwelling pipe fitting 2 is the taper joint for being inserted into picc indwelling tube,
The feed pathway of picc indwelling pipe fitting 2 is connected with the filter chamber 4 of transition chamber thereof 6.
Wherein, the side opposite with piston 12 of plemum 7 is provided with infrared sensor 20, for detecting the position of piston 12
It sets, infrared sensor 20 is connected with integrated circuit, acoustic-optic alarm is arranged on micro drives device 11, when infrared sensor 20
When detecting that piston 12 moves to extreme position, the miniature display control screen 10 of control room 9 is alarmed, and prompts replacement picc indwelling tube
Continue feed flow preventing clogging up device.
Wherein, compressed spring 18, connecting rod 15 are disposed as multiple.
In use, micro-step motor controls piston motion to 9 side of control room, picc indwelling pipe fitting 2 is gone out into liquid
Liquid supply pipe upwards, is then inserted into the feed pathway of feed flow pipe fitting 19 by mouth, and liquid supply pipe pushes annular valve nozzle 16 inwardly to transport
Dynamic, annular valve nozzle 16 fully opens the feed pathway of feed flow pipe fitting 19 with moving valve plate 14, and liquid enters plemum 7, by positive pressure
In room 7 after air emptying, liquid enters transition chamber thereof 6 through fluid hole 1, enters picc indwelling pipe fitting 2, mistake using filter block 3
It crosses in chamber 6 and picc indwelling pipe fitting 2 is inserted into picc indwelling tube after air emptying；
After liquid supply pipe feed flow, liquid supply pipe is detached, valve block 14 restores sealing state under the action of compressed spring 18, starts micro-
Type driving device 11 makes motor that screw rod 13 be driven to rotate, to be rotationally advancing with piston 12, piston 12 squeezes liquid in plemum
Body forms positive pressure, can provide for indwelling tube and to continue at the uniform velocity feed flow up to 6-24 hours；
When infrared sensor 20 detects that piston 12 moves to extreme position, the miniature display control screen 10 of control room 9 is alarmed,
Prompt replacement picc indwelling tube continues feed flow preventing clogging up device.
Transition chamber thereof 6 is removably connect with 8 side wall of shell of plemum 7, can be by transition when replacing picc indwelling tube
Chamber 6 is separated with plemum 7, replaces the filter block 3 of transition chamber thereof 6, and recycling can be achieved after keeping the device sterilized.
Claims (7)
1. a kind of picc indwelling tube continues feed flow preventing clogging up device, it is characterised in that: including sequentially connected feed flow pipe fitting group
Part, positive pressure chamber component and picc indwelling tube joint assembly, wherein feed flow tube joint assembly with for fluid catheter for being connected, liquid supply pipe
Joint assembly includes unidirectional mouth valve；The side of positive pressure chamber component, the plemum of positive pressure chamber component is arranged in feed flow tube joint assembly
(7) it is connected with the feed pathway of feed flow tube joint assembly by unidirectional mouth valve；Picc indwelling tube joint assembly is arranged in plemum
The other side of component, opposite with feed flow tube joint assembly, the feed pathway of picc indwelling tube joint assembly is connected with plemum.
2. a kind of picc indwelling tube according to claim 1 continues feed flow preventing clogging up device, it is characterised in that: the feed flow
Tube joint assembly includes feed flow pipe fitting (19), and feed pathway, feed flow pipe fitting is arranged on feed flow pipe fitting (19) central axes
(19) diameter of feed pathway is equal to the outer diameter of liquid supply pipe, and unidirectional mouth is arranged in the feed pathway of feed flow pipe fitting (19)
Valve, unidirectional mouth valve includes valve block (14), connecting rod (15), annular valve nozzle (16), compressed spring (18), in feed flow pipe fitting (19)
The inner wall of the one end of feed pathway far from positive pressure component annular groove 17 is set, also accommodate compressed spring in annular groove 17
(18), inner wall of the one end of compressed spring (18) with annular groove (17) close to plemum (7) side is mutually fixed, the other end and receiving
Annular valve nozzle (16) outer rim in annular groove (17) is mutually fixed；The diameter of annular valve nozzle (16) inner edge is less than the outer of liquid supply pipe
The side of diameter, annular valve nozzle (16) the inner edge surface phase plemum (7) is connected with one end of connecting rod (15), valve block (14) and company
The other end of extension bar (15) is connected, and the shape of valve block (14) is connected to plemum (7) side with feed flow pipe fitting (19) feed pathway
Shape match, can be realized the opening and closing of feed flow pipe fitting (19) feed pathway.
3. a kind of picc indwelling tube according to claim 2 continues feed flow preventing clogging up device, it is characterised in that: it is described just
Pressure chamber component includes shell (8), control room (9), micro drives device (11), piston (12), screw rod (13), and shell (8) is positive
Hexahedron, it is internal to form cylindrical plemum (7), the axis of plemum (7) and the feed pathway of feed flow pipe fitting (19)
Axis perpendicular, setting piston (12) and screw rod (13), piston (12) are threadedly coupled with screw rod (13) in plemum (7), spiral shell
Bar (13) and plemum (7) coaxial line, one end of screw rod (13) stretches out plemum (7) and is connected with micro drives device (11), micro-
In the control room (9), micro drives device (11) includes micro cell, resonator, integrated circuit, micro- for type driving device (11) setting
Type stepper motor, the rotary shaft connecting screw (13) of micro-step motor, micro cell is for providing electric energy, point through integrated circuit
Frequency effect makes the at the uniform velocity intermittent rotation of stepper motor, for realizing picc indwelling tube continuous liquid supply；It is also set up on the outside of control room (9)
There are miniature display control screen (10), the button of miniature display control screen (10) setting control micro drives device (11) opening and closing.
4. a kind of picc indwelling tube according to claim 3 continues feed flow preventing clogging up device, it is characterised in that: described
Picc indwelling tube joint assembly includes transition chamber thereof (6), picc indwelling pipe fitting (2), transition chamber thereof (6) and plemum (7)
Shell (8) side wall removably connects, and the side wall that transition chamber thereof (6) is connected with the shell (8) of plemum (7) is far from control room
(9) fluid hole (1) is arranged in one end, and fluid hole (1) makes plemum (7) be connected with transition chamber thereof (6)；In transition chamber thereof (6)
It is arranged filter chamber (4), filter block (3) is set in filter chamber (4), multiple feed liquor micropores (5), mistake is arranged in the side wall of filter chamber (4)
Chamber (6) are crossed far from integrally formed with picc indwelling pipe fitting (2), picc indwelling pipe fitting (2) is on the side wall of plemum (7)
Taper joint for being inserted into picc indwelling tube, the feed pathway of picc indwelling pipe fitting (2) and the filtering of transition chamber thereof (6)
Chamber (4) is connected.
5. a kind of picc indwelling tube according to claim 3 continues feed flow preventing clogging up device, it is characterised in that: it is described just
Pressure chamber (7) and the opposite side of the piston (12) are provided with infrared sensor (20), for detecting the position of piston (12),
Infrared sensor (20) is connected with integrated circuit, and acoustic-optic alarm is arranged on (11) in micro drives device, works as infrared sensor
(20) when detecting that piston (12) moves to extreme position, the miniature display control screen (10) of control room (9) is alarmed, and prompts replacement
Picc indwelling tube continues feed flow preventing clogging up device.
6. a kind of picc indwelling tube according to claim 2 continues feed flow preventing clogging up device, compressed spring (18), connecting rod
(15) it is disposed as multiple.
7. a kind of picc indwelling tube according to claim 4 continues the feed liquid method of feed flow preventing clogging up device, feature exists
In: micro-step motor control piston motion to control room (9) side, the liquid outlet of picc indwelling pipe fitting (2) is upward, so
Liquid supply pipe is inserted into afterwards in the feed pathway of feed flow pipe fitting (19), liquid supply pipe pushes annular valve nozzle (16) inwardly to move, ring
Shape valve nozzle (16) fully opens the feed pathway of feed flow pipe fitting (19) with moving valve plate (14), and liquid enters plemum (7), will just
In pressure chamber (7) after air emptying, liquid enters transition chamber thereof (6) through fluid hole (1), enters picc indwelling using filter block () 3
Picc indwelling pipe fitting (2) is inserted into picc indwelling tube by pipe fitting (2) after the interior air emptying of transition chamber thereof (6)；
After liquid supply pipe feed flow, liquid supply pipe is detached, valve block (14) restores sealing state under the action of compressed spring (18), opens
Actuating miniature driving device (11) makes motor drive screw rod (13) rotation, to be rotationally advancing with piston (12), piston (12) is squeezed
Positive pressure presses indoor liquid to form positive pressure, can provide for indwelling tube and to continue at the uniform velocity feed flow up to 6-24 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811474969.7A CN109602999B (en) | 2018-12-04 | 2018-12-04 | Continuous liquid supply anti-blocking device for picc indwelling pipe and liquid supply method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811474969.7A CN109602999B (en) | 2018-12-04 | 2018-12-04 | Continuous liquid supply anti-blocking device for picc indwelling pipe and liquid supply method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109602999A true CN109602999A (en) | 2019-04-12 |
| CN109602999B CN109602999B (en) | 2021-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811474969.7A Active CN109602999B (en) | 2018-12-04 | 2018-12-04 | Continuous liquid supply anti-blocking device for picc indwelling pipe and liquid supply method thereof |
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| CN (1) | CN109602999B (en) |
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| CN1367026A (en) * | 2001-03-02 | 2002-09-04 | 潘子威 | Positive pressure device for preventing blood from returning back for medical retention transfusion |
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| CN108815698A (en) * | 2018-07-06 | 2018-11-16 | 苏州鑫康道医疗科技有限公司 | Continuous positive pressure connector |
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| CN203131135U (en) * | 2013-03-04 | 2013-08-14 | 福建海鹏经贸有限公司 | Pressure-limiting valve |
| CN203686270U (en) * | 2013-11-22 | 2014-07-02 | 松阳县轻源机械设备有限公司 | Improved check valve |
| CN203763663U (en) * | 2014-03-13 | 2014-08-13 | 李林风 | Thrombus proof device for indwelling catheter |
| US20170232191A1 (en) * | 2016-02-12 | 2017-08-17 | Perqflo, Llc | Ambulatory infusion pumps and assemblies for use with same |
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|---|---|
| CN109602999B (en) | 2021-04-27 |
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