CN105031756A - Extracorporeal circulation pipe of blood purifying device - Google Patents
Extracorporeal circulation pipe of blood purifying device Download PDFInfo
- Publication number
- CN105031756A CN105031756A CN201510546331.XA CN201510546331A CN105031756A CN 105031756 A CN105031756 A CN 105031756A CN 201510546331 A CN201510546331 A CN 201510546331A CN 105031756 A CN105031756 A CN 105031756A
- Authority
- CN
- China
- Prior art keywords
- blood
- cam
- intermediate plate
- catheter
- rotating shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- A61M1/1601—Control or regulation
-
- 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
- A61M1/3621—Extra-corporeal blood circuits
- A61M1/3639—Blood pressure control, pressure transducers specially adapted therefor
-
- 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
- A61M1/3653—Interfaces between patient blood circulation and extra-corporal blood circuit
- A61M1/3659—Cannulae pertaining to extracorporeal circulation
- A61M1/3661—Cannulae pertaining to extracorporeal circulation for haemodialysis
-
- 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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
- A61M5/16813—Flow controllers by controlling the degree of opening of the flow line
-
- 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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Hematology (AREA)
- Veterinary Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Urology & Nephrology (AREA)
- Cardiology (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Emergency Medicine (AREA)
- External Artificial Organs (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses an extracorporeal circulation pipe of a blood purifying device. The pipe comprises a pot body, a blood inlet catheter, a detecting catheter and a blood transfusion catheter, the blood inlet catheter and the detecting catheter are arranged at the upper end of the pot body, the blood transfusion catheter is arranged at the lower end of the pot body, a piston which is capable of moving inside the detecting catheter is arranged inside the detecting catheter, and piston limiting structures which do not seal inner holes of the detecting catheter are arranged at the two ends of the detecting catheter. According to the extracorporeal circulation pipe, due to the fact that the piston is arranged inside the detecting catheter, the piston can slide inside the detecting catheter instead of slipping out of the detecting catheter, so that blood inside the pot body can not flow out of the detecting catheter when pressure is detected, therefore, a pressure detecting instrument can not be polluted, and the cross infection of patients does not occur.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly a kind of extracorporeal circulation pipeline of apparatus for purifying blood.
Background technology
The extracorporeal circulation pipeline of apparatus for purifying blood is used for blood transport the Huis body of hemodialysis, and it comprises kettle body, enters blood conduit, detected catheter, blood line and dosing interface, another termination pressure detecting instrument of upper end of detected catheter one termination kettle body.In the process of blood transfusion, blood is pressed into detected catheter and enters pressure detecting instrument by the hypertonia that there will be unavoidably in kettle body, thus pollutes pressure detecting instrument, because pressure detecting instrument is the instrument of life-time service, in use, the intersection sense beam between patient can be caused.
Summary of the invention
The technical problem to be solved in the present invention is: the extracorporeal circulation pipeline of the apparatus for purifying blood providing a kind of blood can not flow out from detected catheter.
In order to solve the problem, the present invention includes kettle body, enter blood conduit, detected catheter and blood line, described enter blood conduit and detected catheter is located at kettle body upper end, blood line is arranged on the lower end of kettle body, being provided with in described detected catheter can the piston of movement in detected catheter, is equipped with the piston limit structure not closing detected catheter endoporus in the two ends of detected catheter.
In order to improve limit effect, described piston limit structure is the annulus protruding detected catheter inwall.
For the ease of controlling blood transfusion flow velocity, described blood line is provided with speed regulator, speed regulator comprises clip and cam, clip comprises the first intermediate plate and the second intermediate plate, the middle part of two intermediate plates is hinged by rotating shaft, spring is provided with between two intermediate plates, the clamping part of the second intermediate plate is provided with the open slot of clamping part away from one end of rotating shaft of accommodation first intermediate plate away from one end of rotating shaft, first intermediate plate is provided with the squeeze station protruding the first intermediate plate on the axial direction of rotating shaft, cam rotates and is arranged in rotating shaft, squeeze station and cam are positioned at the same side of the first intermediate plate, on squeeze station, the side of contiguous cam is provided with arc groove, when clip is not by external force, the clamping part of two intermediate plates is clipped on blood line, the hole that blood line is formed through two intermediate plates is folder hole, one end away from rotating shaft of the clamping part of the second intermediate plate is inserted in open slot, blood line contacts with the middle part of arc groove, and blood line does not contact with the side away from rotating shaft on folder hole, cam is in rotation process, and cam has the state that the state that to be pressed off by blood line in the arc groove of squeeze station and cam do not contact blood line.
In order to prevent two intermediate plates when rotating cam softened, the side of described cam has tapering, on the same bus of side, one end of contiguous first intermediate plate is relative to the more contiguous rotating shaft of the other end, and the arc groove on squeeze station has the tapering corresponding to the taper direction of cam.
For the ease of dosing, the upper end of described kettle body is provided with dosing interface.
Beneficial effect of the present invention: the present invention owing to being provided with piston in detected catheter, piston can slide in detected catheter, but can not detected catheter be skidded off, thus make the blood in kettle body can not flow out detected catheter when detected pressures, thus can not pressure detecting instrument be polluted, the cross infection of patient can not be caused.
Accompanying drawing explanation
Fig. 1 is the structural representation of the specific embodiment of the invention one;
Fig. 2 is the governor structure signal enlarged drawing of the specific embodiment of the invention one;
Fig. 3 be the speed regulator of the specific embodiment of the invention two overlook signal enlarged drawing (broken section);
Fig. 4 is the A partial enlarged drawing of Fig. 1;
In figure: 1, kettle body, 2, dosing interface, 3, enter blood conduit, 4, piston limit structure, 5, piston, 6, detected catheter, 7, speed regulator, 8, blood line, the 701, first intermediate plate, 702, the second intermediate plate, 703, rotating shaft, 704, cam, 705, squeeze station, 706, arc groove, 707, spring, 708, open slot.
Detailed description of the invention
Specific embodiment one
A kind of specific embodiment as shown in Figure 1, it comprises kettle body 1, enter blood conduit 3, detected catheter 6, blood line 8 and dosing interface 2, dosing interface 2, enter blood conduit 3 and detected catheter 6 is located at kettle body 1 upper end, blood line 8 is arranged on the lower end of kettle body 1, as shown in Figure 4, being provided with in detected catheter 6 can the piston 5 of movement in detected catheter 6, is equipped with the piston limit structure 4 of the endoporus not closing detected catheter 6 in the two ends of detected catheter 6.Piston limit structure 4 can be annulus or the projection of protruding detected catheter 6 inwall, only otherwise close that the endoporus of detected catheter 6 is logical again blocks piston 5.Blood line 8 is provided with speed regulator 7.
As shown in Figure 2, speed regulator 7 comprises clip and cam 704, clip comprises the first intermediate plate 701 and the second intermediate plate 702, the middle part of two intermediate plates is hinged by rotating shaft 703, spring 707 is provided with between two intermediate plates, the clamping part of the second intermediate plate 702 is provided with the open slot 708 of clamping part away from one end of rotating shaft 703 of accommodation first intermediate plate 701 away from one end of rotating shaft 703, first intermediate plate 701 is provided with the squeeze station 705 protruding the first intermediate plate 701 on the axial direction of rotating shaft 703, cam 704 rotates and is arranged in rotating shaft 703, squeeze station 705 and cam 704 are positioned at the same side of the first intermediate plate 701, on squeeze station 705, the side of contiguous cam 704 is provided with arc groove 706, when clip is not by external force, the clamping part of two intermediate plates is clipped on blood line 8, the hole that blood line 8 is formed through two intermediate plates is folder hole, one end away from rotating shaft 703 of the clamping part of the second intermediate plate 702 is inserted in open slot 708, blood line 8 contacts with the middle part of arc groove 706, and blood line 8 does not contact away from the side of rotating shaft 703 with on folder hole, cam 704 is in rotation process, cam 704 has the state that the state that to be pressed off by blood line 8 in the arc groove 706 of squeeze station 705 and cam 704 do not contact blood line 8, like this, make cam 704 when extruding blood line 8, cam 704 is acted predominantly on squeeze station 705 by the power that blood line 8 transmits, thus two intermediate plates can be prevented softened.
Operation principle: the blood extracted out from human body enters into blood conduit 3 through dialysis apparatus, and blood is transmitted back to human body by kettle body 1 again from blood line 8.Detected catheter 6 is connected on pressure detecting instrument, in course of conveying, detects the pressure in kettle body 1 by pressure detecting instrument.Pressure in kettle body passes to the gas of piston 5 opposite side by piston 5, thus avoids blood and enter pressure detecting instrument.
The flow velocity of blood can be controlled by speed regulator 7, by the position of adjustment cam 704, thus can change the velocity of blood flow in blood line 8.By controlling the folding of two intermediate plates, speed regulator 7 can be taken off from blood line 8, being convenient to recycling.
Specific embodiment two
This specific embodiment two is with the difference of example one: in specific embodiment two, as shown in Figure 3, the side of cam 704 has tapering, on the same bus of side, one end of contiguous first intermediate plate 701 is relative to the more contiguous rotating shaft 703 of the other end, and the arc groove 706 on squeeze station 705 has the tapering corresponding to the taper direction of cam 7.Thus make cam 704 when extruding blood line 8 to squeeze station 705, cam 704, by the power that blood line 8 is accomplished on the arc groove 706 of squeeze station 705 have one can promote power that open slot 708 extrudes the second intermediate plate 702, makes the second intermediate plate 702 not easily skid off open slot 708.In specific embodiment one, as shown in Figure 2, the side of cam 704 is cylinder, does not have tapering, and arc groove 706 does not also need tapering equally, the axis being parallel of the line crossing with arc groove 706 by the face of the axis of rotating shaft 703 and rotating shaft 703.
Claims (5)
1. the extracorporeal circulation pipeline of an apparatus for purifying blood, comprise kettle body, enter blood conduit, detected catheter and blood line, described enter blood conduit and detected catheter is located at kettle body upper end, blood line is arranged on the lower end of kettle body, it is characterized in that: being provided with in described detected catheter can the piston of movement in detected catheter, is equipped with the piston limit structure not closing detected catheter endoporus in the two ends of detected catheter.
2. the extracorporeal circulation pipeline of apparatus for purifying blood according to claim 1, is characterized in that: described piston limit structure is the annulus protruding detected catheter inwall.
3. the extracorporeal circulation pipeline of apparatus for purifying blood according to claim 1 and 2, it is characterized in that: described blood line is provided with speed regulator, speed regulator comprises clip and cam, clip comprises the first intermediate plate and the second intermediate plate, the middle part of two intermediate plates is hinged by rotating shaft, spring is provided with between two intermediate plates, the clamping part of the second intermediate plate is provided with the open slot of clamping part away from one end of rotating shaft of accommodation first intermediate plate away from one end of rotating shaft, first intermediate plate is provided with the squeeze station protruding the first intermediate plate on the axial direction of rotating shaft, cam rotates and is arranged in rotating shaft, squeeze station and cam are positioned at the same side of the first intermediate plate, on squeeze station, the side of contiguous cam is provided with arc groove, when clip is not by external force, the clamping part of two intermediate plates is clipped on blood line, the hole that blood line is formed through two intermediate plates is folder hole, one end away from rotating shaft of the clamping part of the second intermediate plate is inserted in open slot, blood line contacts with the middle part of arc groove, and blood line does not contact with the side away from rotating shaft on folder hole, cam is in rotation process, and cam has the state that the state that to be pressed off by blood line in the arc groove of squeeze station and cam do not contact blood line.
4. the extracorporeal circulation pipeline of apparatus for purifying blood according to claim 3, it is characterized in that: the side of described cam has tapering, on the same bus of side, one end of contiguous first intermediate plate is relative to the more contiguous rotating shaft of the other end, and the arc groove on squeeze station has the tapering corresponding to the taper direction of cam.
5. the extracorporeal circulation pipeline of apparatus for purifying blood according to claim 3, is characterized in that: the upper end of described kettle body is provided with dosing interface.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510546331.XA CN105031756B (en) | 2015-08-31 | 2015-08-31 | Extracorporeal circulation pipe of blood purifying device |
| CN201710236195.3A CN106860931B (en) | 2015-08-31 | 2015-08-31 | The governor of blood line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510546331.XA CN105031756B (en) | 2015-08-31 | 2015-08-31 | Extracorporeal circulation pipe of blood purifying device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710236195.3A Division CN106860931B (en) | 2015-08-31 | 2015-08-31 | The governor of blood line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105031756A true CN105031756A (en) | 2015-11-11 |
| CN105031756B CN105031756B (en) | 2017-04-26 |
Family
ID=54439105
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710236195.3A Expired - Fee Related CN106860931B (en) | 2015-08-31 | 2015-08-31 | The governor of blood line |
| CN201510546331.XA Expired - Fee Related CN105031756B (en) | 2015-08-31 | 2015-08-31 | Extracorporeal circulation pipe of blood purifying device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710236195.3A Expired - Fee Related CN106860931B (en) | 2015-08-31 | 2015-08-31 | The governor of blood line |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106860931B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112472912A (en) * | 2021-01-12 | 2021-03-12 | 浙江清萍医疗器械有限公司 | Automatic needle pulling device with liquid flow detection function |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5509895A (en) * | 1993-12-14 | 1996-04-23 | Nof Corporation | Air trap chamber device for blood dialysis circuit containing an anticoagulant composition |
| CN1646181A (en) * | 2002-02-08 | 2005-07-27 | 金容年 | Liquid supply apparatus |
| CN1942216A (en) * | 2004-04-13 | 2007-04-04 | 甘布罗伦迪亚股份公司 | A connector for a fluid line in an extracorporeal circuit |
| US20090071258A1 (en) * | 2006-04-19 | 2009-03-19 | Asahi Kasei Kuraray Medical Co., Ltd. | Pressure sensor for extracorporeal circulating circuit |
| CN201684249U (en) * | 2010-01-29 | 2010-12-29 | 亓仲亮 | Air pressure boosting liquid medicine injector |
| CN102221437A (en) * | 2010-04-15 | 2011-10-19 | 宝山钢铁股份有限公司 | Pipeline air pressure on-line detector and detection method |
| US20130317408A1 (en) * | 2012-05-23 | 2013-11-28 | B. Braun Avitum Ag | Medical device for extracorporeal blood treatment comprising plural sensor units |
| CN203598286U (en) * | 2012-07-03 | 2014-05-21 | B·布莱恩·阿维图姆股份公司 | Tube roller pump of medical device for extracorporeal blood treatment, and medical device for extracorporeal blood treatment |
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| CN201930348U (en) * | 2011-01-26 | 2011-08-17 | 张延颂 | Exhaust clip of drainage tube of medical transfusion device |
| CN202236661U (en) * | 2011-09-28 | 2012-05-30 | 田杰 | Liquid dropping speed control clip |
| CN202740594U (en) * | 2012-07-05 | 2013-02-20 | 上海市浦东新区公利医院 | Fixing clamp for medical drainage tube |
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| CN202961512U (en) * | 2012-11-20 | 2013-06-05 | 广州市暨华医疗器械有限公司 | Choke clip for hemodialysis machine |
| CN202942495U (en) * | 2012-11-21 | 2013-05-22 | 龚伟 | Automatic drip controller |
| CN203139266U (en) * | 2013-04-11 | 2013-08-21 | 武汉大学 | Portable type infusion speed regulator |
| CN203244642U (en) * | 2013-04-19 | 2013-10-23 | 上海市同济医院 | Safety clamp assembly used for venous transfusion |
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2015
- 2015-08-31 CN CN201710236195.3A patent/CN106860931B/en not_active Expired - Fee Related
- 2015-08-31 CN CN201510546331.XA patent/CN105031756B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5509895A (en) * | 1993-12-14 | 1996-04-23 | Nof Corporation | Air trap chamber device for blood dialysis circuit containing an anticoagulant composition |
| CN1646181A (en) * | 2002-02-08 | 2005-07-27 | 金容年 | Liquid supply apparatus |
| CN1942216A (en) * | 2004-04-13 | 2007-04-04 | 甘布罗伦迪亚股份公司 | A connector for a fluid line in an extracorporeal circuit |
| US20090071258A1 (en) * | 2006-04-19 | 2009-03-19 | Asahi Kasei Kuraray Medical Co., Ltd. | Pressure sensor for extracorporeal circulating circuit |
| CN201684249U (en) * | 2010-01-29 | 2010-12-29 | 亓仲亮 | Air pressure boosting liquid medicine injector |
| CN102221437A (en) * | 2010-04-15 | 2011-10-19 | 宝山钢铁股份有限公司 | Pipeline air pressure on-line detector and detection method |
| US20130317408A1 (en) * | 2012-05-23 | 2013-11-28 | B. Braun Avitum Ag | Medical device for extracorporeal blood treatment comprising plural sensor units |
| CN203598286U (en) * | 2012-07-03 | 2014-05-21 | B·布莱恩·阿维图姆股份公司 | Tube roller pump of medical device for extracorporeal blood treatment, and medical device for extracorporeal blood treatment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112472912A (en) * | 2021-01-12 | 2021-03-12 | 浙江清萍医疗器械有限公司 | Automatic needle pulling device with liquid flow detection function |
| CN112472912B (en) * | 2021-01-12 | 2021-07-06 | 郭玉玲 | Automatic needle pulling device with liquid flow detection function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106860931A (en) | 2017-06-20 |
| CN105031756B (en) | 2017-04-26 |
| CN106860931B (en) | 2019-04-12 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20190831 |