CN102018999A - Medical apparatus in parallel with vessels - Google Patents
Medical apparatus in parallel with vessels Download PDFInfo
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- CN102018999A CN102018999A CN2009101955555A CN200910195555A CN102018999A CN 102018999 A CN102018999 A CN 102018999A CN 2009101955555 A CN2009101955555 A CN 2009101955555A CN 200910195555 A CN200910195555 A CN 200910195555A CN 102018999 A CN102018999 A CN 102018999A
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Abstract
The invention discloses a medical apparatus in parallel with vessels, which comprises a hollow cavity, a blood inlet channel running through the hollow cavity and a blood outlet channel running through the hollow cavity, wherein the blood inlet channel is communicated with vessels through a first opening on the vessel wall; and the blood outlet channel is used for being communicated with the vessels through a second opening on the vessel wall.
Description
Technical field
The present invention relates to a kind of medical equipment in parallel with blood vessel.
Background technology
The human blood circulatory system is an airtight blood circulation running system, and the blood transport of being responsible for that heart is pumped arrives each histoorgan of whole body, to satisfy the movable required various nutrient substance of body.Vascular system is divided into arteries, vein blood vessel and blood capillary.The blood vessel that leaves heart of infusing new blood is an arteries, and the intra-arterial blood pressure is higher, and flow velocity is very fast, thereby ductus arteriosus wall is thicker, characteristics such as high resilience and contractility.The blood vessel of carrying the blood used to get back to heart is a vein blood vessel, compares with the arteries of peer, and the tube wall of vein blood vessel is thinner, and tube chamber is bigger, and blood pressure is lower, blood flow is comparatively slow.
Need for various medical science, often need handle the blood vessel of human body, for example gather blood from blood vessel, perhaps injectable drug or normal saline in blood vessel are perhaps monitored the health status of blood, or the like.These processing modes are disposable a bit, be for a long time will no longer handle after disposable the handling, but also some is may need repeated treatments over a period to come, for example, diabetics need puncture the skin at finger or other positions usually for insulin injection before per injection, to gather small amounts of blood, weigh the blood sugar level of this moment, determine the amount of the insulin of required injection again; Again for example, some patient may need secular injection of antibiotic or analgesic injection.Under the situation about repeatedly blood vessel being handled in these need be during certain, if handle (as blood sampling, injection etc.) and all carry out the operation that punctures skin, puncture vessel tube wall at every turn, then patient need restrain oneself misery that repeated treatments brings and inconvenient.
Summary of the invention
For this reason, the present invention proposes a kind of medical equipment in parallel with blood vessel, this medical equipment comprises hollow cavity; Advance blood channel with described hollow cavity connects, describedly advance first opening that blood channel is used for the intravascular tube wall and be communicated with blood vessel; With defeated hollow cavity connect go out blood channel, describedly go out second opening that blood channel is used for the intravascular tube wall and be communicated with blood vessel.After advancing blood channel and go out blood channel to install, be communicated on the vascular wall respectively, blood flow is when a maintenance part is mobile along original blood vessel pipeline, another part will be by advancing blood channel, the cavity of the hollow of flowing through, flow among the blood vessel along going out blood channel again, thus realize blood in vivo with external parallel connection, needs to blood vessel take a blood sample, when injection etc. is handled, need not directly handle again, and only need handle getting final product external medical apparatus and instruments to intravital blood vessel.
Preferably, first opening of described vascular wall and second opening of described vascular wall are positioned on the same blood vessel, and described first opening is positioned at the upstream of described vascular flow direction, and second opening is positioned at the downstream of vascular flow direction.
Preferred blood vessel is a vein blood vessel.This be since the physiological structure characteristics determined of vein blood vessel its comparatively be fit to operations such as vascular puncture, blood sampling or injection.
The described hollow cavity of described medical equipment further comprises one or more hole, and described hole is penetrating type and/or semi penetration type.By such hole, make this apparatus intravital blood being parallel to when external, make blood become possibility, for example with exchanging of external environment, can blood be taken out by the hole of this penetrating type or semi penetration type, also can pass through this hole injecting normal saline or other drug in blood.
Preferred a kind of mode is that logical liquid valve or liquid-passing switch are housed on the hole of at least one described penetrating type.Open logical liquid valve or liquid-passing switch, blood flow flows out, and closes logical liquid valve or liquid-passing switch, and blood flow does not flow out.
Another preferred mode is, at the outer wall place of the hollow cavity of described medical equipment, drawstring is housed further, and described drawstring is close to the hollow cavity outer wall, and can parallelly with the outer wall of described hollow cavity move.Drawstring is owing to cover described one or more hole, thereby blood is not flowed out, if but drawstring is moved, make drawstring not cover the hole of described one or more penetrating type, then blood will flow out from the hole.
Preferably has one or more hole on the described drawstring, the position of mobile drawstring, hole on the drawstring and the hole on the hollow cavity are aligned, when two holes align, blood can go out by the orifice flow of two corresponding penetrating types, perhaps can utilize needle tubing to pass this and blood not taken out the hole of penetrating type, perhaps can medicine or other objects be injected into the blood from the outside by these two holes that align.
Also be provided with the drawstring moving track on the outer wall of described hollow cavity.This track will make drawstring be easy to accurate operation when mobile more on the outer wall of hollow cavity.
The diameter in the hole on hole on the described hollow cavity and the described drawstring is between 0.05mm to 3mm, preferably between 0.5mm to 1.5mm.
Describedly advance blood channel and the described internal diameter that goes out blood channel is less than or equal to the internal diameter of described hollow cavity.
The internal diameter of described hollow cavity is less than or equal to the internal diameter of described blood vessel.
The inwall of described hollow cavity, describedly advance blood channel and describedly go out blood channel and make by blood compatibility material.Can guarantee that like this place that contacts with blood in the described medical equipment can not cause the untoward reaction of blood.
The length of described hollow cavity is between 5mm to 150mm, and internal diameter is between 1mm to 10mm.Such size makes the volume of whole medical equipment less relatively, reduces the contact surface and the time of contact of blood and apparatus, reduces the chance that blood heat changes.
The medical equipment in parallel proposed by the invention with blood vessel, principle by parallel connection, in fact set up one with body in blood vessel " artificial blood vessel " in parallel, under the situation that patient or doctor need at any time, by " artificial blood vessel " of this parallel connection, can take a blood sample easily or in blood, inject, thereby the repeated localised puncture to blood vessel in the human body body, transform into operation, and then subdue the misery that patient's repeated localised puncture is brought " artificial blood vessel " of external parallel connection.
The specific embodiment
Below in conjunction with accompanying drawing the medical equipment in parallel with blood vessel of the present invention explained in more detail.
Fig. 1 is the basic sketch map of this medical equipment, comprise hollow cavity 3 and be communicated with it respectively advance blood channel 1 and go out blood channel 2.Advance blood channel 1 and go out the internal diameter of the internal diameter of blood channel 2 less than described hollow cavity 3, the internal diameter of hollow cavity 3 is less than the internal diameter of blood vessel, and the length of hollow cavity 3 is between 5mm to 150mm, and internal diameter is between 1mm to 15mm.As shown in the figure, to advance blood channel 1 and go out blood channel 2 and be percutaneously advanced into blood vessel respectively, as vein blood vessel, owing to be communicated with before and after the whole apparatus, and blood mobile has certain pressure, therefore, mobile blood is understood some and is flowed into into blood channel 1 in blood vessel, and this strand blood flow hollow cavity 3 of will flowing through enters out blood channel 2, and from go out the original blood vessel of blood channel 2 inflows, continue blood circulation in vivo.Because blood flow is through this medical equipment, therefore, when needs blood sampling or injection, need not be again to intravital vascular puncture, and only need this medical equipment is punctured or other processing get final product.
Fig. 2 is the structural representation of the outer wall of hollow cavity 3, has one or more hole 31 on this outer wall, also is provided with a track 32 that is used to spur drawstring simultaneously.Hole 31 is the hole of penetrating type, is convenient in this hole directly flow out when open, perhaps directly injects to blood from the outside as materials such as medicine, normal saline by this hole; Hole 31 also can be the hole of semi penetration type, and in this case, even if this hole opening, blood can directly not flow out yet, but because be the hole of semi penetration type, under external force, for example by the puncture of fine needle, the hole of this semi penetration type can be worn out.The diameter in hole 31 is between 0.5mm to 1.5mm.
Fig. 3 is the sketch map of drawstring 4, has one or more hole 41 on this drawstring 4, and the diameter in hole 41 is between 0.5mm to 1.5mm.Drawstring 4 is installed on the track 32 on hollow cavity 3 outer walls, makes drawstring be close to the outer wall of hollow cavity 3.Pulling drawstring 4, when align with the hole 41 on the drawstring 4 in the hole 31 on hollow cavity 3 outer walls, hollow cavity will with external environment connect, by this hole 31 and 41 to being communicated with, blood hollow cavity 3 outflows in the past, also can be injected into hollow cavity from the outside with medicine or other materials (passing through needle tubing), thereby injected material is circulated in vascular system with blood by the hole 31 and 41 that is communicated with.If do not need the communication of this internal and external environment, then only need pulling drawstring 4, make hole 31 on hollow cavity 3 outer walls not aim at hole 41 on the drawstring 4, then Nei Wai communication will be cut off.
More than a kind of medical equipment in parallel with blood vessel provided by the present invention is described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of these embodiment just is used for helping to understand structure of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to inventive concept, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (14)
1. a medical equipment in parallel with blood vessel is characterized in that, comprising:
Hollow cavity;
Advance blood channel with described hollow cavity connects, describedly advance first opening that blood channel is used for the intravascular tube wall and be communicated with blood vessel;
With defeated hollow cavity connect go out blood channel, describedly go out second opening that blood channel is used for the intravascular tube wall and be communicated with blood vessel.
2. medical equipment as claimed in claim 1, it is characterized in that, first opening of described vascular wall and second opening of described vascular wall are positioned on the same blood vessel, and described first opening is positioned at the upstream of vascular flow direction, and described second opening is positioned at the downstream of vascular flow direction.
3. medical equipment as claimed in claim 2 is characterized in that, described blood vessel is a vein blood vessel.
4. medical equipment as claimed in claim 1 is characterized in that described hollow cavity further comprises one or more hole, and described hole is penetrating type and/or semi penetration type.
5. medical equipment as claimed in claim 4 is characterized in that, logical liquid valve or liquid-passing switch are housed on the hole of at least one described penetrating type.
6. medical equipment as claimed in claim 4 is characterized in that, on the outer wall of described hollow cavity, drawstring is housed further, and described drawstring is close to the outer wall of described hollow cavity, and can parallelly with the outer wall of described hollow cavity move.
7. medical equipment as claimed in claim 6 is characterized in that, has one or more hole on the described drawstring.
8. medical equipment as claimed in claim 6 is characterized in that the outer wall of described hollow cavity is provided with the drawstring moving track.
9. as claim 4 or 7 described medical equipments, it is characterized in that the diameter in described hole is between 0.05mm to 3mm.
10. medical equipment as claimed in claim 9 is characterized in that the diameter in described hole is between 0.5mm to 1.5mm.
11. medical equipment as claimed in claim 2 is characterized in that, describedly advances blood channel and the described internal diameter that goes out blood channel is less than or equal to the internal diameter of described hollow cavity.
12. medical equipment as claimed in claim 11 is characterized in that, the internal diameter of described hollow cavity is less than or equal to the internal diameter of described blood vessel.
13. as the described medical equipment of above-mentioned each claim, it is characterized in that, the inwall of described hollow cavity, describedly advance blood channel and describedly go out blood channel and make by blood compatibility material.
14. as the described medical equipment of above-mentioned each claim, it is characterized in that the length of described hollow cavity is between 5mm to 150mm, internal diameter is between 1mm to 15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101955555A CN102018999A (en) | 2009-09-11 | 2009-09-11 | Medical apparatus in parallel with vessels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101955555A CN102018999A (en) | 2009-09-11 | 2009-09-11 | Medical apparatus in parallel with vessels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102018999A true CN102018999A (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101955555A Pending CN102018999A (en) | 2009-09-11 | 2009-09-11 | Medical apparatus in parallel with vessels |
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| Country | Link |
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| CN (1) | CN102018999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104970768A (en) * | 2015-05-11 | 2015-10-14 | 西南交通大学 | Experimental device for semi in-vivo blood circulation environmental-biology intervention material |
-
2009
- 2009-09-11 CN CN2009101955555A patent/CN102018999A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104970768A (en) * | 2015-05-11 | 2015-10-14 | 西南交通大学 | Experimental device for semi in-vivo blood circulation environmental-biology intervention material |
| CN104970768B (en) * | 2015-05-11 | 2018-02-06 | 西南交通大学 | A kind of half blood circulation inside body environmental organism intervention material experimental provision |
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Application publication date: 20110420 |