Improved blood transfusion apparatus

Abstract

The utility model provides an improved blood transfusion apparatus which comprises a blood transfusion needle head, a needle head inner sleeve cap, an exhaust valve, a blood transfusion clamp, a primary filter screen, a secondary filter screen, a needle-pricking-injury-preventing needle head protection cap and a blood transfusion apparatus plug, the shape and a needle hole of the blood transfusion needle head are improved, and a blood transfusion bag is prevented from being punctured. The lengths of the two sides of the Y-shaped blood transfusion apparatus and the color of the blood transfusion clamp are changed, so that medical staff can better distinguish the blood transfusion apparatus, the liquid level is between the upper line and the lower line of the Murphy's dropper during exhausting by changing the shape of the filter screen, increasing the upper line and the lower line, the filtering effect during blood filtering is guaranteed, and the blood transfusion apparatus can effectively prevent micro-polymers from entering blood and avoid blood pollution due to twice filtering. And the infusion reaction of blood and blood products is reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, and in particular to an improved blood transfusion device. Background Art

[0002] A blood transfusion set is a medical device used to transfuse blood. It is mainly composed of a blood transfusion bag, a blood transfusion tube, and a blood transfusion needle. The blood transfusion set is used to transfuse bagged blood products, such as red blood cells, platelets, and cryoprecipitate, and bottled blood products, such as albumin, immunoglobulin G, and factor VIII. The blood transfusion tube is generally made of soft, transparent plastic tubing for transporting blood. The joints of the various parts of the blood transfusion set usually have a leak-proof function to ensure that there is no external contamination during the infusion process. The blood transfusion needle is used to puncture the patient's blood vessels to deliver blood to the patient's body. The working principle of the blood transfusion set is to drive blood from the blood transfusion bag through the blood transfusion tube into the patient's vascular system through gravity or pressure difference.

[0003] The needle of the existing blood transfusion device is thick and long, which can easily puncture the blood transfusion bag and cause blood leakage. In addition, the blood attached to the blood transfusion bag at the end of the blood transfusion cannot be completely injected into the patient's body, wasting precious blood resources. The tube on the bifurcation of the existing blood transfusion device is relatively long, and the blood in the side tube of the blood transfusion bag cannot be completely injected into the patient's body during blood transfusion. When the blood transfusion device is used for bottled blood products such as albumin or immunoglobulin, due to the small amount of liquid, it is easy to go under the filter when replacing. If the liquid is squeezed or too much foam is caused, the foam will adhere to the tube wall at the end of the transfusion, causing waste. At the end of the blood transfusion, blood leaks out when the blood product is handled, which can easily cause blood contamination; blood contamination is easy to cause during the destruction of the blood transfusion device, and the scissors are covered with blood or get on the hands of the nurse. Summary of the invention

[0004] In view of the above problems, an improved blood transfusion device is provided. The utility model mainly improves the shape of the blood transfusion needle, changes the length of the two sides of the Y-shaped blood transfusion device and changes the shape of the filter screen to avoid the problem of the needle piercing the blood bag and wasting blood resources.

[0005] The technical means adopted by the utility model are as follows:

[0006] An improved blood transfusion device, comprising: a blood transfusion needle, a needle inner cap, an exhaust valve, a blood transfusion clamp, a primary filter, a secondary filter, a needle protection cap to prevent needle puncture, and a blood transfusion device plug;

[0007] The blood transfusion needle consists of three apertures, one side is a long flat groove blood inlet hole, and the other two holes are large-diameter blood inlet holes close to the top of the needle; the primary filter is located at the lower end of the blood transfusion clamp; the secondary filter is located in the Maupis dropper.

[0008] Furthermore, the blood transfusion needle comprises an outer cap and an inner cap. The outer cap is directly discarded when in use, and the inner cap is not sealed. The base of the inner cap is fixed on the blood transfusion device and can be unscrewed when needed.

[0009] Furthermore, the blood transfusion needle is composed of a flat groove, a thin blood inlet hole, and a thick blood inlet hole. The thin blood inlet hole ensures that the blood adhered to the blood transfusion bag enters the blood transfusion device, and the thick blood inlet hole ensures that a large amount of blood enters the blood transfusion device, thereby ensuring the blood transfusion speed during rapid blood transfusion.

[0010] Furthermore, the Maofeis dropper is provided with upper and lower lines. When exhausting, the liquid level is between the upper and lower lines. The upper end of the filter is located on the lower line of the Maofeis dropper. The filter is in the shape of a double-layer closed fishing net. Both sides of the filter are close to the side walls of the dropper. Below the filter is the upper end of the infusion tube.

[0011] Furthermore, the blood transfusion clamp on the blood transfusion or drug infusion side is red, and the blood transfusion clamp on the saline side is white, and the saline side is 2 cm longer than the blood transfusion or drug infusion side.

[0012] Furthermore, the connector caliber of the blood transfusion set plug is consistent with the opening of the blood transfusion bag, and the blood transfusion set plug is covered on the tail end of the blood transfusion set connector. When the blood transfusion is completed, the entire plug is covered on the blood transfusion bag to prevent the remaining blood in the blood transfusion bag from flowing out.

[0013] Due to the adoption of the above technical solution, compared with the prior art, the utility model has the following advantages:

[0014] 1. The utility model provides an improved blood transfusion device, which prevents the needle from puncturing the blood transfusion bag by changing the shape of the needle.

[0015] 2. The improved blood transfusion device provided by the utility model can ensure the filtering effect during blood filtering and effectively prevent micro-aggregates from entering the blood by changing the shape of the filter and adding upper and lower lines.

[0016] 3. The utility model provides an improved blood transfusion device, the needle of which is a disposable scalp needle. If the patient is not a patient with an intravenous needle, the needle protection cap can directly cover the needle after the needle is removed to prevent needlestick injuries.

[0017] 4. The utility model provides an improved blood transfusion device, which is provided with a blood transfusion device plug, which is plugged at the end of blood transfusion to prevent blood contamination after the remaining blood flows back. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of an improved blood transfusion device described in the utility model.

[0020] Figure 2 The utility model is a schematic diagram of an improved blood transfusion needle of a blood transfusion device.

[0021] Figure 3 The utility model is a schematic diagram of an improved inner cap of a blood transfusion needle of a blood transfusion set.

[0022] Figure 4 The utility model is a schematic diagram of a blood inlet hole of a blood transfusion needle of an improved blood transfusion device.

[0023] Figure 5 The utility model is a schematic diagram of an improved exhaust valve of a blood transfusion device.

[0024] Figure 6 The utility model is a schematic diagram of an improved blood transfusion clamp of a blood transfusion device.

[0025] Figure 7 The utility model is a schematic diagram of a primary filter screen of an improved blood transfusion device.

[0026] Figure 8 The utility model is a schematic diagram of an improved secondary filter screen of a blood transfusion device.

[0027] Fig. 9 The utility model is a schematic diagram of an improved needle protection cap for preventing needlestick injuries of a blood transfusion set.

[0028] Fig.10 The utility model is a schematic diagram of an improved blood transfusion device plug.

[0029] In the figure: 1. needle outer cap; 2. needle inner cap; 3. blood transfusion needle; 4. inner cap with skylight; 5. inner cap base; 6. flat groove; 7. thin blood inlet hole; 8. thick blood inlet hole; 9. exhaust valve; 10. exhaust cover; 11. clamping position; 12. thickened anti-clamping deformation area; 13. lower end of X-shaped blood transfusion clamp; 14. upper end of X-shaped blood transfusion clamp; 15. blood transfusion clamp clamping slot; 16. disposable filter; 17. adsorption cotton; 18. upper line of Maupis dropper; 19. lower line of Maupis dropper; 20. upper layer of secondary filter; 21. bottom layer of secondary filter; 22. secondary filter; 23. fixing clamp; 24. needle protection cap; 25. blood transfusion set connector; 26. blood transfusion set extension tube; 27. blood transfusion set plug. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0034] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0035] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0036] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0037] like Figures 1 to 10 As shown, an improved blood transfusion set includes: a blood transfusion needle 3, a needle inner cap 2, an exhaust valve 9, a blood transfusion clamp, a primary filter 16, a secondary filter 22, a needle protection cap 24 to prevent needle puncture, and a blood transfusion set plug 27;

[0038] The blood transfusion needle 3 is composed of three apertures, one side of which is a long flat groove 6 blood inlet hole. When the pressure of the blood bag is low, the blood enters the blood transfusion device along the flat groove 6 to prevent residual blood and blood products. The other two apertures are large-caliber blood inlet holes close to the top of the needle to ensure the blood inlet speed and blood inlet amount; the primary filter 16 is located at the lower end of the blood transfusion clamp; the secondary filter 22 is located in the Maupis dropper.

[0039] Furthermore, the blood transfusion needle 3 is connected to the exhaust valve 9, the exhaust valve 9 is connected to the disposable filter 16 through a blood transfusion tube, the blood transfusion clamp is located between the blood transfusion needle 3 and the primary filter 16, the primary filter 16 is connected to the secondary filter 22 through a blood transfusion tube, the secondary filter 22 is connected to the blood transfusion set plug 27 through a blood transfusion tube, and the blood transfusion set plug 27 is connected to the anti-needlestick needle through a blood transfusion tube.

[0040] Furthermore, the blood transfusion needle 3 comprises an outer cap and an inner cap 2. The outer cap 1 is directly discarded when in use, and the inner cap 4 is not sealed. The base of the inner cap 2 is fixed on the blood transfusion device and can be unscrewed when needed. When the blood product in the bottle is transfused, the inner cap 2 can be unscrewed to expose the sharp blood transfusion needle 3.

[0041] Furthermore, the blood transfusion needle 3 is composed of a flat groove 6, a thin blood inlet hole 7, and a thick blood inlet hole 8. The thin blood inlet hole 7 ensures that the blood adhered to the blood transfusion bag enters the blood transfusion device, and the thick blood inlet hole 8 ensures that a large amount of blood enters the blood transfusion device, thereby ensuring the blood transfusion speed during rapid blood transfusion.

[0042] Furthermore, the blood transfusion clamp on the blood transfusion or drug infusion side is red, and the blood transfusion clamp on the saline side is white, and the saline side is 2 cm longer than the blood transfusion or drug infusion side.

[0043] Furthermore, release the red clamp on the blood side after flushing the tube. When the blood transfusion is about to end, the pressure in the blood transfusion bag is low and a small amount of blood adheres to the tube wall and cannot fall down. At this time, open the vent hole, and wait until the remaining blood in the bag drops to the red clamp, then close the vent hole and the red clamp at the same time to prevent residual blood and blood products.

[0044] Further, release the white clamp on the saline side and flush the tube with saline. At this time, the position of the saline is higher than the side of the blood transfusion device. The blood above the Mophis dropper of the blood transfusion device will gradually flow into the blood transfusion device until the flushing of the tube is completed and the needle is removed.

[0045] Furthermore, the needle of the blood transfusion device is a disposable scalp needle. If the patient is not a patient with an intravenous needle, the needle protection cap 24 can directly cover the needle after the needle is removed to prevent needlestick injuries.

[0046] Furthermore, after removing the needle, cut it off above the two clips of the blood transfusion clamp, throw the needle into the sharps box, cover the mouth of the blood transfusion set with the blood transfusion side ring, cut it off at the connection of the blood transfusion set, and the cut tail end of the blood transfusion set can be directly blocked at the leak of the blood transfusion bag to prevent residual blood from flowing out and causing blood contamination.

[0047] Furthermore, the connector caliber of the blood transfusion set plug 27 is consistent with the opening of the blood transfusion bag, and the blood transfusion set plug 27 covers the tail end of the blood transfusion set connector. When the blood transfusion is completed, the entire blood transfusion set plug 27 covers the blood transfusion bag to prevent the remaining blood in the blood transfusion bag from flowing out.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. An improved blood transfusion device, characterized in that: include: Blood transfusion needle, needle inner cap, exhaust valve, blood transfusion clamp, primary filter, secondary filter, needle protection cap to prevent needle puncture, blood transfusion set plug; The blood transfusion needle consists of three apertures, one side is a long flat groove blood inlet hole, and the other two holes are large-diameter blood inlet holes close to the top of the needle; the primary filter is located at the lower end of the blood transfusion clamp; the secondary filter is located in the Maupis dropper.

2. An improved blood transfusion device according to claim 1, characterized in that: The blood transfusion needle comprises an outer cap and an inner cap. The outer cap is directly discarded when in use, and the inner cap is not sealed. The base of the inner cap is fixed on the blood transfusion device and can be screwed down when needed.

3. An improved blood transfusion device according to claim 2, characterized in that: The blood transfusion needle consists of a flat groove, a thin blood inlet hole and a thick blood inlet hole. The thin blood inlet hole ensures that the blood adhered to the blood transfusion bag enters the blood transfusion device, and the thick blood inlet hole ensures that a large amount of blood enters the blood transfusion device, thereby ensuring the blood transfusion speed during rapid blood transfusion.

4. An improved blood transfusion device according to claim 3, characterized in that: The Maofeis dropper is provided with an upper and lower line. When exhausting, the liquid level is between the upper and lower lines. The upper end of the filter is located at the lower line of the Maofeis dropper. The filter is in the shape of a double-layer closed fishing net. Both sides of the filter are close to the side walls of the dropper. Below the filter is the upper end of the infusion tube.

5. An improved blood transfusion device according to claim 4, characterized in that: The blood transfusion clamp on the blood transfusion or drug infusion side is red, and the blood transfusion clamp on the saline side is white. The saline side is 2 cm longer than the blood transfusion or drug infusion side.

6. An improved blood transfusion device according to claim 5, characterized in that: The connector diameter of the blood transfusion set plug is consistent with the opening of the blood transfusion bag. The blood transfusion set plug is covered on the tail end of the blood transfusion set connector. When the blood transfusion is completed, the entire plug is covered on the blood transfusion bag to prevent the remaining blood in the blood transfusion bag from flowing out.

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