CN217548655U - Arterial end thrombus filtering device for hemodialysis closed blood return - Google Patents
Arterial end thrombus filtering device for hemodialysis closed blood return Download PDFInfo
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- CN217548655U CN217548655U CN202220245838.7U CN202220245838U CN217548655U CN 217548655 U CN217548655 U CN 217548655U CN 202220245838 U CN202220245838 U CN 202220245838U CN 217548655 U CN217548655 U CN 217548655U
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Abstract
The utility model provides a hemodialysis closed returns blood with artery end thrombus filter equipment, including the artery pipeline that is used for being connected with patient's artery and with blood pump connection's dialysis pipeline, parallel connection has last blood guide pipeline and lower quick-witted blood return pipeline between artery pipeline and the dialysis pipeline, both ends department that is close to last blood guide pipeline and lower quick-witted blood return pipeline is provided with the pipeline clip, bear the weight of the seat through the filter screen on the inner wall of lower quick-witted blood return pipeline and be equipped with the filter screen and settle the chamber, the filter screen is settled the chamber and is the thin smooth transition hollow structure in middle thick both ends, the filter screen is settled the filter screen that the intracavity has set firmly the net twine and has been woven vertically and horizontally, link up on the chamber wall at chamber both ends is settled to having seted up hourglass hopper-shaped changeover portion by being close to the filter screen and settle chamber one side and to keeping away from filter screen settlement chamber one side crescent. This application settles the chamber through setting up the filter screen in the blood return pipeline of putting down, and the filter screen settles the intracavity and sets firmly the filter screen, can filter the thrombus of avoiding flowing into the human body to gravity feedback blood from this.
Description
Technical Field
The utility model relates to a medical care technical field, concretely relates to hemodialysis closed is returned blood and is held thrombus filter equipment with artery.
Background
Hemodialysis is one of the kidney replacement treatment modes of patients with acute and chronic renal failure. The method comprises the steps of draining blood in vivo to the outside of a human body, enabling the blood and electrolyte solution (dialysate) with similar body concentration to be inside and outside one hollow fiber through a dialyzer consisting of a plurality of hollow fibers, and performing substance exchange through dispersion, ultrafiltration, adsorption and convection principles to remove metabolic wastes in the human body and maintain electrolyte and acid-base balance; the entire process of simultaneously removing excess water from the body and returning the purified blood intravenously to the patient is known as hemodialysis, which typically takes four hours to perform once a hemodialysis cycle.
At present, after hemodialysis, the arterial end returns blood through the gravity principle when hemodialysis closed blood returns the machine, but the blood that stops in the blood vessel return circuit among the hemodialysis process can produce little thrombus, owing to lack the filter screen protection, easily causes the direct condition that gets into the human body of thrombus before the pump, and then increases corresponding complication for example the emergence of pulmonary embolism, has the safety risk.
SUMMERY OF THE UTILITY MODEL
After finishing to current hemodialysis, the arterial end returns blood through the gravity principle when hemodialysis closed blood returns machine, owing to lack the filter screen protection, easily causes the direct human condition that gets into of thrombus before the pump, and then increases the emergence of corresponding complication for example pulmonary embolism, has the technical problem of safe risk, the utility model provides a hemodialysis closed returns blood and holds thrombus filter equipment with arterial.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a hemodialysis closed is returned blood and is used artery end thrombus filter equipment, including the artery pipeline that is used for being connected with patient's artery and the dialysis pipeline of being connected with the blood pump, parallel connection has last machine to draw blood pipeline and lower quick-witted blood return pipeline between artery pipeline and the dialysis pipeline, and both ends department that is close to last machine to draw blood pipeline and lower quick-witted blood return pipeline is provided with the pipeline clip, be equipped with the filter screen carrier seat on the inner wall of lower quick-witted blood return pipeline, be equipped with the filter screen in the filter screen carrier seat and settle the chamber, the filter screen is settled the chamber and is the thin smooth transition hollow structure in thick two in the middle of, the filter screen is settled the intracavity and is set firmly the filter screen that the net twine was vertically and horizontally interwoven, link up on the chamber wall at filter screen arrangement chamber both ends and seted up funnel-shaped transition section, and the section wall internal diameter of this funnel-shaped transition section is settled chamber one side by being close to the filter screen and is settled chamber one side and is kept away from the filter screen and is crescent.
Compared with the prior art, the utility model provides a hemodialysis closed returns blood and uses artery end thrombus filter equipment, when carrying out hemodialysis use, will be close to the pipeline clip of off-machine blood return pipeline both ends department earlier and close and let off-machine blood return pipeline close to the pipeline clip of on-machine blood return pipeline both ends department open and let on-machine blood return pipeline open, then the artery pipeline of being connected with patient's artery carries out hemodialysis with blood order through on-machine blood return pipeline, blood pump sending, cerini dialyser cerini and patient's vein; after hemodialysis, open the pipeline clip that lets machine off return blood pipeline open near machine off return blood pipeline both ends department earlier, let blood settle chamber both ends circulation 10s through the filter screen, then will be close to the pipeline clip that machine led blood pipeline both ends department and press from both sides and close and let machine on lead blood pipeline and close and stop the pump, let artery end blood settle the filter screen of intracavity through the filter screen through the action of gravity and filter, in order to avoid the thrombus direct flow to the patient internal, and then let blood realize normal reinfusion. Meanwhile, on one hand, the filter screen arranging cavity is designed into a smooth transition hollow structure with thick middle and thin two ends, and funnel-shaped transition sections with gradually increasing section wall inner diameters from inside to outside are arranged on the cavity walls at the two ends of the filter screen arranging cavity in a penetrating way, so that the back transfusion blood can be guided to the position near the center of one end of the filter screen arranging cavity through the funnel-shaped transition sections to flow in, and uniformly dispersed and filtered in the filter screen arranging cavity and then flows out in a concentrated way, so that the back transfusion blood is filtered more fully and effectively; on the other hand, the blood leading and the blood returning are respectively realized through the upper blood leading pipeline and the lower blood returning pipeline, so that the phenomenon that blood clots are coagulated in blood circulation by blood components on the filter screen due to overlong blood leading time (four hours) through the same pipeline can be avoided, and the blood clots flow into a patient body together due to back flushing during blood returning, so that the safety risk of the patient is reduced, and the life quality of the patient with hemodialysis is improved.
Furthermore, two ends of the upper blood guiding pipeline and the lower blood returning pipeline are connected with the artery pipeline and the dialysis pipeline through three-way joints.
Further, the diameter that the chamber was settled to the filter screen is no longer than 5cm, the diameter that the chamber both ends were settled to the filter screen is 2cm, the axial length that the chamber was settled to the filter screen is no longer than 5cm.
Furthermore, the aperture of the mesh of the filter screen in the filter screen installation cavity is 0.1cm.
Furthermore, one end of the artery pipeline, which is used for being connected with the artery of the patient, is connected with an artery puncture needle.
Drawings
Fig. 1 is a schematic structural view of the arterial end thrombus filter device for hemodialysis closed blood return provided by the present invention.
Fig. 2 is an enlarged schematic view of the interior of the blood return line of the lower part of fig. 1.
In the figure, 1, arterial line; 2. a dialysis line; 3. an upper blood leading pipeline; 4. a machine-off blood return pipeline; 40. a filter screen bearing seat; 41. a filter screen accommodating cavity; 5. a pipeline clamp; 6. a filter screen; 7. a funnel-shaped transition section; 8. a three-way joint; 9. an arterial puncture needle.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
In the description of the present invention, it is to be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
Please refer to fig. 1 and fig. 2, the utility model provides a hemodialysis closed blood return is with artery end thrombus filter equipment, including the artery pipeline 1 that is used for being connected with patient's artery and the dialysis pipeline 2 of being connected with the blood pump, parallel connection has last blood guide pipeline 3 and lower machine blood return pipeline 4 between artery pipeline 1 and the dialysis pipeline 2, and the both ends department that is close to last blood guide pipeline 3 and lower machine blood return pipeline 4 is provided with pipeline clip 5, can realize opening and clamping to last blood guide pipeline 3 and lower machine blood return pipeline 4 through this current pipeline clip 5, be equipped with filter screen bearer 40 on the inner wall of lower machine blood return pipeline 4, be equipped with filter screen bearer 40 in the filter screen bearer 40 and settle chamber 41, filter screen settlement chamber 41 is the thin smooth transition hollow structure of thick both ends in the middle, the filter screen settlement chamber 41 has set firmly the filter screen 6 that the net twine interweaves, link up on the chamber wall at filter screen settlement chamber 41 both ends and seted up funnel-shaped transition section 7, the section wall internal diameter of this funnel-shaped transition section 7 is by being close to filter screen settlement chamber 41 one side and keeping away from filter screen settlement chamber 41 one side and increasing gradually the internal diameter of transition section 7 gradually from outside.
Compared with the prior art, the utility model provides a hemodialysis closed returns blood and uses artery end thrombus filter equipment, when carrying out hemodialysis use, will be close to the pipeline clip of off-machine blood return pipeline both ends department earlier and close and let off-machine blood return pipeline close to the pipeline clip of on-machine blood return pipeline both ends department open and let on-machine blood return pipeline open, then the artery pipeline of being connected with patient's artery carries out hemodialysis with blood order through on-machine blood return pipeline, blood pump sending, cerini dialyser cerini and patient's vein; after hemodialysis, open the pipeline clip that lets machine off return blood pipeline open near machine off return blood pipeline both ends department earlier, let blood settle chamber both ends circulation 10s through the filter screen, then will be close to the pipeline clip that machine led blood pipeline both ends department and press from both sides and close and let machine on lead blood pipeline and close and stop the pump, let artery end blood settle the filter screen of intracavity through the filter screen through the action of gravity and filter, in order to avoid the thrombus direct flow to the patient internal, and then let blood realize normal reinfusion. Meanwhile, on one hand, the filter screen installation cavity is of a smooth transition hollow structure with thick middle and thin two ends, and funnel-shaped transition sections with gradually increasing section wall inner diameters from inside to outside are arranged on the cavity walls of the two ends of the filter screen installation cavity in a penetrating mode, so that the blood for back transfusion can be guided to the position close to the center of one end of the filter screen installation cavity to flow in through the funnel-shaped transition sections and uniformly dispersed and filtered in the filter screen installation cavity and then flows out in a centralized mode, and therefore the blood for back transfusion is filtered more fully and effectively; on the other hand, the blood leading and the blood returning are respectively realized through the upper blood leading pipeline and the lower blood returning pipeline, so that the phenomenon that blood clots are coagulated in blood circulation by blood components on the filter screen due to overlong blood leading time (four hours) through the same pipeline can be avoided, and the blood clots flow into a patient body together due to back flushing during blood returning, so that the safety risk of the patient is reduced, and the life quality of the patient with hemodialysis is improved.
As a specific embodiment, please refer to fig. 1, two ends of the upper blood guiding line 3 and the lower blood returning line 4 are connected to the arterial line 1 and the dialysis line 2 through a three-way joint 8, that is, one end of the upper blood guiding line 3 and one end of the lower blood returning line 4 are connected to the arterial line 1 through the existing three-way joint 8, and the other end of the upper blood guiding line 3 and the other end of the lower blood returning line 4 are connected to the dialysis line 2 through the existing three-way joint 8, so that the efficiency and convenience of connection between the lines can be improved.
As a specific embodiment, please refer to fig. 2, a diameter D of the middle of the filter screen accommodating cavity 41 is not more than 5cm, diameters D of two ends of the filter screen accommodating cavity 41 are 2cm, an axial length L of the filter screen accommodating cavity 41 is not more than 5cm, and preferably, a mesh aperture r of the filter screen 6 in the filter screen accommodating cavity 41 is 0.1cm, so that the reinfused blood can be well uniformly dispersed and sufficiently filtered, and thus, a possible micro thrombus in the reinfused blood can be prevented from entering a human body.
As a specific example, referring to fig. 1, an artery puncture needle 9 is connected to one end of the artery pipeline 1 for connecting with an artery of a patient, that is, the artery pipeline 1 is connected with the artery of the patient through the existing artery puncture needle 9, so that arterial blood of the patient is drained into the artery pipeline 1.
Finally, it is noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a hemodialysis closed returns blood with artery end thrombus filter equipment, its characterized in that, including be used for artery pipeline (1) be connected with patient's artery and dialysis pipeline (2) with blood pump connection, parallel connection has last machine blood pipeline (3) and lower machine blood pipeline (4) between artery pipeline (1) and dialysis pipeline (2), and both ends department that is close to last machine blood pipeline (3) and lower machine blood pipeline (4) is provided with pipeline clip (5), be equipped with filter screen bearing seat (40) on the inner wall of lower machine blood pipeline (4), be equipped with filter screen bearing seat (41) in filter screen bearing seat (40) and settle chamber (41), filter screen settling chamber (41) are the thin smooth transition hollow structure of thick both ends in the middle of filter screen settling chamber (41), filter screen settling chamber (41) internal stability has set up filter screen (6) that the net twine was interweaved vertically and horizontally, filter screen settling chamber wall on the chamber wall at chamber (41) both ends has seted up funnel-shaped transition section (7), and hopper-shaped transition section (7) inner diameter is settled filter screen settling chamber (41) by being close to filter screen (41) one side and is kept away from filter screen settling chamber (41) and is increased gradually.
2. The arterial end thrombus filter device for hemodialysis closed-type blood return according to claim 1, wherein both ends of the upper blood leading line (3) and the lower blood returning line (4) are connected to the arterial line (1) and the dialysis line (2) through a three-way joint (8).
3. The arterial end thrombus filter device for hemodialysis closed-type flashback is in accordance with claim 1, wherein the diameter of the middle of the strainer placement chamber (41) is not more than 5cm, the diameters of both ends of the strainer placement chamber (41) are 2cm, and the axial length of the strainer placement chamber (41) is not more than 5cm.
4. The arterial end thrombus filter device for hemodialysis closed-type flashback of blood according to claim 3, wherein the mesh aperture of the filter mesh (6) in the filter mesh housing chamber (41) is 0.1cm.
5. The arterial end thrombus filter device for hemodialysis closed-type flashback of claim 1, wherein an arterial puncture needle (9) is connected to one end of the arterial line (1) for connecting with an artery of a patient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220245838.7U CN217548655U (en) | 2022-01-26 | 2022-01-26 | Arterial end thrombus filtering device for hemodialysis closed blood return |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220245838.7U CN217548655U (en) | 2022-01-26 | 2022-01-26 | Arterial end thrombus filtering device for hemodialysis closed blood return |
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| CN217548655U true CN217548655U (en) | 2022-10-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115779171A (en) * | 2022-11-28 | 2023-03-14 | 中国人民解放军联勤保障部队第九二三医院 | Thrombus-proof pipeline |
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2022
- 2022-01-26 CN CN202220245838.7U patent/CN217548655U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115779171A (en) * | 2022-11-28 | 2023-03-14 | 中国人民解放军联勤保障部队第九二三医院 | Thrombus-proof pipeline |
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