CN2838630Y - Pneumatic left cardic auxiliary pump - Google Patents
Pneumatic left cardic auxiliary pump Download PDFInfo
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- CN2838630Y CN2838630Y CN 200520066753 CN200520066753U CN2838630Y CN 2838630 Y CN2838630 Y CN 2838630Y CN 200520066753 CN200520066753 CN 200520066753 CN 200520066753 U CN200520066753 U CN 200520066753U CN 2838630 Y CN2838630 Y CN 2838630Y
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- upper shell
- lower house
- left ventricular
- ventricular assist
- blood
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Abstract
The utility model relates to a pneumatic left heart auxiliary pump, which comprises an upper and a lower shells, a separator film, a blood feeding interface, a hemorrhage interface and a driving interface, wherein a blood chamber is formed between the upper shell and the separator film, and an air chamber is formed between the lower shell and the separator film; a blood feeding interface valve is arranged in the blood feeding interface, and the hemorrhage interface is provided with a hemorrhage interface valve. The upper shell and the lower shell are fixedly connected; a port where the lower shell and the upper shell are connected is provided with an annular pressing ring; the edge of the separator film between the lower shell and the upper shell is hermetically arranged between the upper shell and the pressing ring; the upper shell and the lower shell are fixedly connected in a gluing mode. The utility model makes the structure of a heart auxiliary pump simplified; the upper and the lower shells are directly and fixedly connected, a screw thread sleeve for connecting the blood chamber with the air chamber is omitted and the installation and the use are convenient.
Description
Affiliated technical field
This utility model relates to a kind of medical apparatus and instruments, particularly a kind of pneumatic left ventricular assist pump that is used to rescue heart failure patient.
Background technology
The auxiliary rescue that has been widely used in the serious symptom heart failure abroad of the left side heart, the patient that depleted patient who waits for heart transplantation of serious low heart row syndrome, whole latter stage cardiac pump function and acute myocardial infarction, myocarditis cause cardiogenic shock after cardiac operation under direct vision all needs the auxiliary support of the left heart.Had multiple commercial left heart auxiliary device in developed countries such as the U.S., Germany and Japan and be applied to clinically, its version is maked rapid progress, and from the external to the implantable, is implanted to fully from part and implants.Also great changes will take place for the auxiliary treatment notion of the left side heart, changes to long-term replacement therapy auxiliary and heart transplantation with the transition support from short-term is auxiliary, widened the auxiliary scope of application of the left heart greatly.According to statistics, the U.S. has the patient of 4,800,000 heart failure at present approximately, and annual about 50,000 patients die from heart failure, and annual de novo heart failure patient has 5.5 ten thousand, the heart failure patient of cardiac function IV level about 6～70,000.Up-to-date survey data shows, have 4,000,000 approximately at China's heart failure patient, and cardiovascular diseases's sickness rate has the trend that increases gradually, serious symptom heart disease patient is more relatively, to serious symptom cardiac's the emergency measures wretched insufficiency that but seems, be unfavorable for the rescue of critically ill patient and the development of department of cardiac surgery, therefore, using left heart auxiliary circulating equipment is one of effective measures of rescuing the serious symptom heart failure.
At present, domestic still do not have a kind of commercial left ventricular assist pump and can supply clinical practice, and its research also only limits to laboratory and makes by hand, can't satisfy the clinical practice needs.External this type of product price is approximately several ten thousand to the hundreds of thousands dollar, nearly 200,000 RMB of disposable pneumatic blood pump, and this is difficult to bear for the general patient of China.Therefore, developing home-made left heart auxiliary device presses in China.Disclosed patent documentation: a kind of left heart auxiliary blood pump, ZL98247777.5, this auxiliary blood pump includes blood chamber, air chamber and barrier film, the thread bush that also has a band inner flange, it tightens together blood chamber, air chamber and intermediary barrier film, but its shortcoming is that installation is loaded down with trivial details, dismounting inconvenience, in case and entrained gas then be difficult to remove in the blood chamber, for user brings potential safety hazard.
The utility model content
The purpose of this utility model provides a kind of novel pneumatic left ventricular assist pump, and its novel structure fully takes into account the safety of user, has strengthened the sealing property between its upper and lower casing, uses Special Equipment just can produce in batches, and application prospect is extensive.
The technical solution of the utility model can realize with following technical measures, a kind of pneumatic left ventricular assist pump, comprise, lower house, barrier film, advance the blood interface, hemorrhage interface and driving interface, form the blood chamber between upper shell and the barrier film, form air chamber between lower house and the barrier film, advance and have the blood inlet valve in the blood interface, hemorrhage interface has the blood outlet valve, it is characterized in that upper shell fixedlys connected with lower house, annular trim ring is equipped with at the place, connectivity port of lower house and upper shell, and the diaphragm edge sealing between lower house and the upper shell is installed between upper shell and the trim ring.
Fixedly connected by bonding between described upper shell and the lower house.
This utility model can be done following improvement: the place, connectivity port between the described upper and lower casing is provided with prominent ring and the groove that matches respectively, this structural design makes and forms a plurality of continuous anchor rings between the two interface with the increase bonding plane, thereby makes both connections more firm.
For further improving the sealing between upper and lower casing and the barrier film, the upper and lower surface of described diaphragm edge is adhesively fixed with upper shell and trim ring respectively.
This utility model can also be done further improvement: the place, connectivity port between the described upper and lower casing is provided with the anchor ring that is adhesively fixed with trim ring respectively, upper and lower casing, trim ring and barrier film link together securely by the bonding of abutted surface, have guaranteed the excellent sealing between blood chamber and the air chamber more.
This use is novel can to remake following improvement: described upper shell is provided with bleeding point, and bleeding point seals with sillicon rubber blocking.
When needs are emitted gas from the blood chamber, only the fine needle head need be inserted saturating sillicon rubber blocking the gas extraction is got final product, after syringe needle is extracted,, be convenient to operation, and guaranteed the safety of user because the elasticity of silicone rubber then makes bleeding point return to good sealing state again.
Inverted cone surface of the inboard formation of trim ring is just in time held the lower surface of barrier film near its marginal portion, not only can strengthen membranous sealing, can also cushion the suffered pressure of barrier film when the blood chamber is full of blood, to increase membranous service life.
Compared with prior art, the utility model has the advantages that:
(1). structure is simplified greatly, and upper and lower casing is directly fixedly connected, has saved the thread bush that connects blood chamber and air chamber, installs and uses convenient;
(2). by the inverted cone surface on the trim ring, changed lower house and the traditional structure that barrier film directly contacts in the past, made membranous stressing conditions and sealing property desirable more;
(3). being provided with aspirating hole on the blood chamber also is innovation part of the present utility model, need not take the pump housing apart, just gas can be extracted out more convenient to use and safety.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is a upper shell structural representation of the present utility model
Fig. 3 is a lower house structural representation of the present utility model
The specific embodiment
The specific embodiment of pneumatic left ventricular assist pump described in the utility model such as Fig. 1, Fig. 2, shown in Figure 3, it is by upper shell 1, lower house 2, barrier film 3, advance blood interface 4, hemorrhage interface 5, drive interface 10 and trim ring 7 compositions, form the blood chamber between upper shell 1 and the barrier film 3, form air chamber between lower house 2 and the barrier film 3, upper shell 1 and lower house 2 are respectively the epirelief that adapts and recessed globoidal structure, it under the barrier film naturalness the recessed attitude of cambered surface, advance, hemorrhage interface 4,5 all are communicated with on described blood chamber, and have advancing of the opposite individual event valve formula of opening direction respectively, blood outlet valve 6,8, the place, connectivity port of lower house 2 inwardly is provided with groove and prominent ring successively along outer rim, the continuous anchor ring that prominent ring that the continuous anchor ring of the two composition and the connectivity port of upper shell 1 place inwardly is provided with successively along outer rim and groove are formed matches and is adhesively fixed, trim ring 7 is installed in lower house 2 upper ends, upper shell 1 and lower house 2 also are respectively equipped with the annular composition surface that cooperates with trim ring 7 upper and lower end faces, on barrier film 3 edges, lower surface is mutually bonding with upper shell 1 and trim ring 7 respectively, and barrier film 3 can distortion be mobile up and down with the turnover of the air in the air chamber; The cross section of trim ring 7 is similar to one and cuts inboard one jiao square, and trim ring 7 inboard formed inverted cone surfaces are just in time held the lower surface of barrier film 3 near its edge; Upper shell 1, lower house 2 is simultaneously mutually bonding with trim ring 7 sides.Upper shell 1 is provided with a vertical bleeding point near edge, and bleeding point seals with sillicon rubber blocking 9.
Pneumatic left ventricular assist pump work process described in the utility model is as follows: positive pressure air enters air chamber through driving device by driving interface 10 from air compressor, barrier film 3 recessed cambered surfaces are upwards promoted distortion, the blood inlet valve 6 of air driven pump is closed, and blood outlet valve 8 is open, blood is penetrated by hemorrhage interface 5, and this is the systole of air driven pump.When air in the air chamber was extracted out by Negative pressure machine, barrier film 3 descended, and air driven pump blood inlet valve 6 is open, and blood outlet valve 8 is closed, and blood flows into the blood chamber from advancing blood interface 4, and this is the relaxing period of air driven pump.This process promptly is that the blood of patient's left ventricle of heart failure is extracted out, in the patient's of reinjecting the Arterial system, and so circulation, thus guarantee that patient's whole body organ can in time obtain arterial blood, avoids causing life danger because of heart failure.
Claims (10)
1. pneumatic left ventricular assist pump, comprise, lower house (1) (2), barrier film (3), advance the blood interface, hemorrhage interface (5) and driving interface (10), form the blood chamber between upper shell (1) and the barrier film (3), form air chamber between lower house (2) and the barrier film (3), advance and have blood inlet valve (6) in the blood interface (4), hemorrhage interface (5) has blood outlet valve (8), it is characterized in that upper shell (1) fixedlys connected with lower house (2), lower house (2) is equipped with annular trim ring (7) with the place, connectivity port of upper shell (1), and barrier film (3) the edge sealing between lower house (2) and the upper shell (1) is installed between upper shell (1) and the trim ring (7).
2. pneumatic left ventricular assist pump according to claim 1 is characterized in that between described upper shell (1) and the lower house (2) mutually bonding.
3. pneumatic left ventricular assist pump according to claim 2 is characterized in that the place, connectivity port of described upper shell (1) and lower house (2) is provided with prominent ring and the groove that matches respectively.
4. pneumatic left ventricular assist pump according to claim 3 is characterized in that the upper and lower surface at described barrier film (3) edge is adhesively fixed with upper shell (1) and trim ring (7) respectively.
5. pneumatic left ventricular assist pump according to claim 4 is characterized in that the place, connectivity port between described upper shell (1), the lower house (2) is provided with the anchor ring that is adhesively fixed with trim ring (7) respectively.
6. pneumatic left ventricular assist pump according to claim 5 is characterized in that described upper shell (1) is provided with the bleeding point by sillicon rubber blocking (9) sealing.
7. pneumatic left ventricular assist pump according to claim 6 is characterized in that upper shell (1) is provided with a vertical bleeding point near edge.
8. pneumatic left ventricular assist pump according to claim 7 is characterized in that trim ring (7) inboard has an inverted cone surface that is used for holding barrier film (3) lower surface edge part.
9. pneumatic left ventricular assist pump according to claim 8, the connectivity port place that it is characterized in that lower house (2) inwardly is provided with groove and prominent ring successively along outer rim, and the continuous anchor ring of the two composition and the connectivity port of upper shell (1) are located the continuous anchor ring that the prominent ring that inwardly is provided with successively along outer rim and groove form and matched and be adhesively fixed.
10. pneumatic left ventricular assist pump according to claim 9 is characterized in that upper shell (1) and lower house (2) are respectively the epirelief that adapts and recessed globoidal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520066753 CN2838630Y (en) | 2005-11-04 | 2005-11-04 | Pneumatic left cardic auxiliary pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520066753 CN2838630Y (en) | 2005-11-04 | 2005-11-04 | Pneumatic left cardic auxiliary pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2838630Y true CN2838630Y (en) | 2006-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520066753 Expired - Fee Related CN2838630Y (en) | 2005-11-04 | 2005-11-04 | Pneumatic left cardic auxiliary pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2838630Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102046220A (en) * | 2008-03-28 | 2011-05-04 | 维塔尔梅克斯国际股份有限公司 | Fluid pumping device and components with static seal |
| CN101485907B (en) * | 2008-01-17 | 2011-05-11 | 姬尚义 | Extra-aortic ballon counterpulsation type heart ventricle auxiliary pump |
| CN101543647B (en) * | 2009-05-14 | 2011-09-07 | 天津大学 | Pulse type heart chamber auxiliary pump |
| CN102743802A (en) * | 2012-07-25 | 2012-10-24 | 胡玉 | Medical diaphragm type pneumatic blood pump |
| CN103330964A (en) * | 2013-05-31 | 2013-10-02 | 上海交通大学 | Artificial heart system provided with blood pressure regulation mechanism |
| CN104906643A (en) * | 2015-06-03 | 2015-09-16 | 湖南人文科技学院 | Blood pumping device |
| CN106693095A (en) * | 2016-12-27 | 2017-05-24 | 安徽农业大学 | Pneumatic heart auxiliary blood pumping device |
| CN107177500A (en) * | 2017-05-24 | 2017-09-19 | 广东省人民医院(广东省医学科学院) | A kind of bionical impulsive motion bioreactor based on Luo Ye pumps |
| CN113730794A (en) * | 2021-09-24 | 2021-12-03 | 安徽通灵仿生科技有限公司 | Interim left heart auxiliary device of intervention formula |
| CN117442866A (en) * | 2023-09-25 | 2024-01-26 | 杭州晟视科技有限公司 | Membrane pump assembly and heart auxiliary device with same |
-
2005
- 2005-11-04 CN CN 200520066753 patent/CN2838630Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101485907B (en) * | 2008-01-17 | 2011-05-11 | 姬尚义 | Extra-aortic ballon counterpulsation type heart ventricle auxiliary pump |
| US8869395B2 (en) | 2008-03-28 | 2014-10-28 | Vitalmex Internacional S.A. De C.V. | Fluid pumping device and components with static seal |
| CN102046220B (en) * | 2008-03-28 | 2013-09-11 | 维塔尔梅克斯国际股份有限公司 | Fluid pumping device and components with static seal |
| CN102046220A (en) * | 2008-03-28 | 2011-05-04 | 维塔尔梅克斯国际股份有限公司 | Fluid pumping device and components with static seal |
| US8771164B2 (en) | 2008-03-28 | 2014-07-08 | Vitalmex Internacional S.A. De C.V. | Fluid pumping ventricular assist device and components with static seal |
| CN101543647B (en) * | 2009-05-14 | 2011-09-07 | 天津大学 | Pulse type heart chamber auxiliary pump |
| CN102743802A (en) * | 2012-07-25 | 2012-10-24 | 胡玉 | Medical diaphragm type pneumatic blood pump |
| CN103330964B (en) * | 2013-05-31 | 2015-08-26 | 上海交通大学 | With the artificial heart system of blood pressure regulating mechanism |
| CN103330964A (en) * | 2013-05-31 | 2013-10-02 | 上海交通大学 | Artificial heart system provided with blood pressure regulation mechanism |
| CN104906643A (en) * | 2015-06-03 | 2015-09-16 | 湖南人文科技学院 | Blood pumping device |
| CN104906643B (en) * | 2015-06-03 | 2017-06-16 | 湖南人文科技学院 | A kind of blood pumping installations |
| CN106693095A (en) * | 2016-12-27 | 2017-05-24 | 安徽农业大学 | Pneumatic heart auxiliary blood pumping device |
| CN107177500A (en) * | 2017-05-24 | 2017-09-19 | 广东省人民医院(广东省医学科学院) | A kind of bionical impulsive motion bioreactor based on Luo Ye pumps |
| CN113730794A (en) * | 2021-09-24 | 2021-12-03 | 安徽通灵仿生科技有限公司 | Interim left heart auxiliary device of intervention formula |
| CN117442866A (en) * | 2023-09-25 | 2024-01-26 | 杭州晟视科技有限公司 | Membrane pump assembly and heart auxiliary device with same |
| CN117442866B (en) * | 2023-09-25 | 2024-03-05 | 杭州晟视科技有限公司 | Membrane pump assembly and heart auxiliary device with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061122 Termination date: 20101104 |