CN211272717U - Fixing device for blood purifier - Google Patents

Abstract

The utility model relates to a fixing device for blood purifier, including the couple, the flat pole portion of being connected with the couple, pole portion place plane is first reference surface, and the fixed part of blood purifier is supported to the ring-type, and the ring-type place plane of fixed part is the second reference surface, pole portion and fixed part fixed connection, still is provided with weak intensity portion in the junction of pole portion and fixed part, and when the blood purifier was located the ring segment of fixed part, weak intensity portion made the blood purifier under its self action of gravity, first reference surface can be with second reference surface mutually perpendicular. The fixing device of the utility model has simple structure and convenient use, and can ensure that the blood purifier is in a vertical state when in use.

Description

Fixing device for blood purifier

Technical Field

The utility model belongs to the field of medical equipment, specifically relate to a fixing device for blood purifier.

Background

Blood purification refers to the process of removing some pathogenic substances from the blood of a patient by a blood purifier to purify the blood and treat diseases. The clinically common blood purification methods include dialysis, perfusion, plasma replacement and the like, referring to fig. 1, for clinically common perfusion dialysis series connection treatment, an arterial end 100 leads blood out of a human body through a pump 20, a titration kettle 30 can be arranged on a pipeline, a perfusion device 40 is connected in series behind the titration kettle 30, an adsorbent is stored in the perfusion device 40 and adsorbs pathogenic substances in the blood, a dialyzer 50 can be further connected in series at the downstream of the perfusion device 40, a hollow fiber membrane is arranged in the dialyzer 50, the pathogenic substances in the blood are further removed and electrolyte balance is adjusted by means of dispersion and the like, and the treated blood is returned to the human body through a venous end 101. In order to make the blood fully contact with the adsorbent in the perfusion device 40 during treatment and increase the total adsorption of pathogenic substances, the perfusion device 40 needs to be in a vertical state, the blood flows along the length direction of the perfusion device 40, and the blood flows vertically from bottom to top and flows through the perfusion device. The blood in the dialyzer 50 flows in a reverse direction to the dialysate, and the dialyzer 50 should also be in an upright position in order to allow air that may be present in the dialyzer 50 to pool at the upper end.

In actual use, the blood purifier such as the aforementioned perfusion device, dialyzer, etc. needs to be fixed and then treated, and the blood purifier can be held by a holder provided in the blood purification apparatus, but this increases the cost of the blood purification apparatus, and the holder is reused, which may cause a risk of cross infection. The other proposal provides a mode of using disposable net bags, binding bands and the like, which avoids the risk of cross infection, but is difficult to ensure that the blood purifier is in a vertical state during treatment, reduces the use efficiency of the blood purifier and indirectly leads to the increase of the cost of patients.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects and shortcomings of the prior art, the utility model aims to provide a fixing device which has simple structure and convenient use and can ensure that the blood purifier is in a vertical state when in use.

The utility model discloses a fixing device for blood purifier, including the couple, with the flat pole portion of couple connection, pole portion place plane is first reference surface, and the annular is supported the fixed part of blood purifier, the annular place plane of fixed part is the second reference surface, pole portion with fixed part fixed connection the junction of pole portion and fixed part still is provided with weak intensity portion, works as the blood purifier is located during the cyclic annular part of fixed part, weak intensity portion makes the blood purifier is under its self action of gravity, first reference surface can with second reference surface mutually perpendicular.

When needing to use the blood clarifier in the treatment process, only need hang the couple at blood purification equipment or near, make the plane that the pole portion is located first reference surface be vertical face, assemble the blood clarifier to the cyclic annular part of fixed part this moment, force the plane that the cyclic annular of fixed part is located second reference surface and first reference surface are perpendicular under the effect of blood clarifier self gravity, second reference surface is parallel with the horizontal plane promptly, at this moment, the blood clarifier is in vertical state, adsorbent and blood in it fully contact, the total adsorption capacity to pathogenic substance has been improved, the availability factor has been improved, and simultaneously, because of having adopted extra fixing device, cross infection's risk has effectively been reduced.

Preferably, the rod portion, the fixing portion and the weak strength portion are integrally injection-molded, and the weak strength portion is a notch. Because of being integrative injection moulding, low cost, simple structure set up weak intensity portion into the form of nick, and the shaping is convenient, when the blood clarifier assembles in the cyclic annular part of fixed part, only needs the self gravity of blood clarifier can make it be in vertical state, easy operation.

Preferably, the weak strength portion is a plurality of hole portions, so that the structure is simple and the forming is convenient.

Preferably, the rod parts are provided in pairs at both sides of a ring-shaped part of the fixing part, the ring-shaped part being formed in a circular ring, and the weak strength part is located on a central extension line of the circular ring. The stress at the joint is uniform, and the blood purifier is better ensured to be in a vertical state.

Preferably, the annular portion of the fixing portion is further provided with a plurality of skirt blades inclined toward the center of the annular portion. When the blood purifier is assembled to the annular portion, the skirt-shaped blade abuts against a wall portion of the blood purifier so that the blood purifier can be more stably fixed.

Drawings

Figure 1 is a schematic view of the blood purification mode of the present invention,

FIG. 2 is a perspective view of the fixing device for blood purifier of the present invention,

figure 3 is a partially enlarged schematic view of the fixing device of the present invention,

figure 4 is a plan view of the fixing device of the present invention,

FIG. 5 is a schematic view showing a state where the fixing means is used in the blood purifier of the present invention,

fig. 6 is a schematic view of another embodiment of the present invention relating to a weak strength portion.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

As shown in FIG. 1, the blood purification mode of the present invention is schematically shown, the arterial end 100 draws blood from the human body through the pump 20, the blood flows through the titration flask 30 through the pipeline, the titration flask 30 is mainly used for collecting bubbles in the pipeline, and the bubbles can be removed from the pipeline system through the external bypass. A perfusion device 40 is connected in series at the downstream of the titration kettle 30, an adsorbent which can be resin or activated carbon is stored in the perfusion device 40, the adsorbent adsorbs medium and large molecular pathogenic substances in blood such as beta 2 microglobulin, interleukin and the like, in order to ensure that the blood is fully contacted with the adsorbent in the perfusion device 40 during treatment and improve the total adsorption amount of the pathogenic substances, the perfusion device 40 needs to be in a vertical state, the blood flows along the length direction of the perfusion device 40, and at the moment, the blood flows vertically from bottom to top and flows through the perfusion device and is fully contacted with the adsorbent, thereby achieving better treatment effect. A dialyzer 50 can be connected in series downstream of the perfusion device 40, a hollow fiber membrane is arranged in the dialyzer 50, small molecule pathogenic substances in blood are further removed and water electrolyte balance is adjusted by means of dispersion and the like, and the treated blood is returned to a human body through a vein end 101. The perfusion device 40 and the dialyzer 50 are specific embodiments of the blood purifier, and the present invention is not limited to the blood purifier described above, and may be a plasma separator.

Referring to fig. 2, which is a perspective view of a fixing device 60 for a blood purifier 40, with reference to fig. 3 to 5, the fixing device 60 includes a hook 601, a flat rod 602 connected to the hook 601, the rod 602 is located on a plane which is a first reference plane P1, a fixing portion 603 for annularly supporting the blood purifier 40, the fixing portion 603 is located on a plane which is a second reference plane P2, the rod 602 is fixedly connected to the fixing portion 603, and a weak portion 604 is further provided at a connection between the rod 602 and the fixing portion 603, so that when the blood purifier 40 is located in an annular portion 6030 of the fixing portion 603, the weak portion 604 makes the blood purifier 40 under its own weight, and the first reference plane P1 can be perpendicular to the second reference plane P2.

As shown in fig. 5, when the blood purifier 40 needs to be used in a treatment process, the hook 601 is only required to be hung on the blood purification apparatus or a nearby support, the first reference plane P1, which is the plane where the rod 602 is located, is a vertical plane, at this time, the blood purifier 40 is assembled to the annular part 6030 of the fixing part 603, the second reference plane P2, which is the plane where the annular part of the fixing part 603 is located, is perpendicular to the first reference plane P1, that is, the second reference plane P2 is parallel to a horizontal plane, at this time, the blood purifier 40 is in a vertical state, and the adsorbent therein is in full contact with blood, so that the total adsorption amount of pathogenic substances is increased, the use efficiency is improved, and the risk of cross infection is effectively reduced due to the adoption of an additional fixing device.

Preferably, the stem 602, the fixing portion 603, and the weak strength portion 604 are integrally injection-molded, and the weak strength portion 604 is a notch 6040. Specifically, referring to fig. 3, the stem portion 602 has a flat portion 6020 that forms a groove-shaped indentation 6040 in the flat portion 6020 adjacent to the ring portion 6030 of the retainer 603. Because of being integrative injection moulding, low cost, simple structure, and set up weak strength portion 604 into the form of nick 6040, the shaping is convenient, when blood clarifier 40 assembles in the cyclic annular part 6030 to the fixed part, only need blood clarifier 40's self gravity can make it be in vertical state, easy operation.

The weak strength portion 604 may be a plurality of hole portions 7040, which aim to reduce the strength of the portion, and when the blood purifier 40 is fitted into the annular portion 6030 of the fixing portion, the blood purifier 40 can be in a vertical state by only its own weight, and thus the structure is simple and the molding is convenient.

Referring to fig. 4, the rod 602 is disposed on both sides of the ring part 6030 of the fixing part 603 in pairs, the ring part 6030 is substantially circular, and the weak strength part 604 at the joint of the rod 602 and the fixing part 603 is located on the central extension line L of the ring 6030, so that when the blood purifier 40 is assembled into the ring part 6030, the joint is uniformly stressed, and the blood purifier 40 is better ensured to be in a vertical state as shown in fig. 5. It should be understood that the above-mentioned substantially circular shape includes a standard circle and also includes a non-standard circle such as an ellipse, etc., for the purpose of explaining that the weak strength portions 604 are symmetrically disposed on both sides of the ring portion 6030 to make the force applied uniform.

A plurality of skirt-like blades 605 may be further provided in the annular portion 6030 of the fixing portion 603, the skirt-like blades 605 being inclined toward the center of the annular portion 6030, and when the blood purifier 40 is fitted to the annular portion 6030, the skirt-like blades 605 abut against the wall 401 of the blood purifier 40, so that the blood purifier 40 can be more firmly fixed.

The rod 602 may further include a rib 6021 along its length to further reinforce the strength of the rod 602, thereby ensuring that the blood purifier 40 is stably and reliably fixed to the fixing portion 603.

The hook 601 may be formed in a separate hook shape as shown in fig. 1, or may be formed as a part of the stem 602, i.e., integrally injection-molded with the stem 602, as shown in fig. 4, preferably integrally injection-molded, so that the cost can be reduced.

An end cap 400 may be further provided at an end of the blood purifier 40, and a dimension of the end cap 400 in the radial direction is larger than a dimension of the wall portion 401 in the radial direction and larger than a diameter of the annular portion 6030, so that the blood purifier 40 can be stably fixed in the annular portion 6030.

The main idea of the utility model is to set up weak strength portion through the junction at pole portion and fixed part for blood purifier is under the effect of its own gravity, and first reference surface and second reference surface can be mutually perpendicular, even make blood purifier be in vertical state when using, improves the availability factor. There are obvious variations of the above-described structure in accordance with the present concepts and are not limited to the specific structure of the above-described embodiments.

Claims (7)

1. A fixing device for a blood purifier, comprising: the plane of the rod part is a first reference surface, the fixing part of the blood purifier is supported in an annular mode, the plane of the annular fixing part is a second reference surface, and the rod part is fixedly connected with the fixing part,

it is characterized in that the preparation method is characterized in that,

the blood purifier comprises a rod part, a fixing part and a weak strength part, wherein the rod part is arranged on the connecting part of the rod part and the fixing part, the rod part, the fixing part and the weak strength part are integrally injection-molded, and when the blood purifier is positioned in the annular part of the fixing part, the weak strength part enables the blood purifier to be under the action of self gravity, and the first reference surface can be perpendicular to the second reference surface.

2. The blood purifier holder according to claim 1, wherein the weak strength portion is a notch.

3. The blood purifier fixture according to claim 1, wherein the weak strength portion is a plurality of holes.

4. The fixing device for a blood purifier as defined in claim 2 or 3, wherein the rod portions are provided in pairs on both sides of a ring-shaped portion of the fixing portion, the ring-shaped portion being formed into a circular ring, the weak-strength portion being located on an extension of a center of the circular ring.

5. The fixing device for a blood purifier as defined in claim 4, wherein the annular portion of the fixing portion is further provided with a plurality of skirt blades inclined toward the center of the annular portion.

6. The fixing device for a blood purifier as claimed in claim 5, wherein the shaft portion is further provided with a reinforcing rib along a length direction thereof.

7. The fixing device for a blood purifier as claimed in claim 6, wherein the hook is integrally injection-molded with the stem portion.

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