Improved blood taking needle
By designing an improved blood collection needle, the connection between the tail needle and the hard tube is protected by using a protective cover and a protective sleeve, the problems of accidental injury to the tail needle and blood contamination after blood collection are solved, and a safe infusion process is achieved.
Patent Information
- Application Number
- CN202421802580.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-07-29
AI Technical Summary
After blood collection, when the tail needle at the tail end of the blood collection needle is twisted off and connected to the infusion device, it is easy to cause accidental injury to the tail needle, blood stains on the hands, and contamination of the connection, resulting in infusion reactions that may occur in patients during infusion.
An improved blood collection needle is designed, and the puncture needle is equipped with a needle cap and a needle handle, and the connecting hose is connected to the hard tube. A protective cover and a threaded connection head are provided on the connecting head. A protective sleeve is provided on the protective sleeve, and the tail needle is located inside the rubber tube. By separating the hard tube from the connecting head, the protective sleeve protects the tail needle, and the protective cover protects the connection of the hard tube to prevent medical staff from touching the blood and the connection.
After the blood collection, the design of the protective cover and protective cover is avoided, the tail needle injury and blood contamination are reduced, and the risk of occupational exposure is prevented, and the contamination at the connection is prevented, ensuring the safety of the infusion process.
Smart Images
Figure CN222997871U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical appliances, and particularly relates to an improved blood collection needle. Background Art
[0002] The blood collection needle is used to collect blood samples during medical examinations. The blood collection needle at its top pierces the blood vessel, the transparent hose at the tail end is connected to the tail needle, the outside of the tail needle is wrapped by a rubber hose, and a needle cap is put on the outside, which is used to pierce into a vacuum blood collection tube, and the negative pressure inside the vacuum blood collection tube is used to suck the blood into the inside of the vacuum blood collection tube.
[0003] Due to the different conditions of blood vessels of different patients, for patients with poor blood vessel conditions, especially children and the elderly, when the blood collection needle is pulled out after blood collection and then intravenous infusion is carried out, re-venous puncture is required, increasing the pain of children and the elderly. With the development of medical technology, a blood collection needle has emerged clinically to solve the above problems. After blood collection, the tail needle at the tail end of the blood collection needle is unscrewed, and then the blood collection needle is directly connected to the infusion set, and then intravenous infusion is carried out. However, during the process of unscrewing the tail needle and connecting the infusion set, the tail needle is prone to cause accidental injury, the blood at the connection is easily stained on the hand, and the connection is easily contaminated, which may cause infusion reactions when subsequent patients receive infusion. Therefore, in view of the above problems, we propose an improved blood collection needle. Content of the Utility Model
[0004] In view of the above problems, the purpose of the utility model is to provide an improved blood collection needle, which can be connected to an infusion set for intravenous infusion after blood collection, and can avoid risks such as accidental injury of the tail needle, blood staining on the hand, and contamination of the connection during connection.
[0005] To achieve the above purpose, the technical solution adopted by the utility model is: an improved blood collection needle, a puncture needle, a needle cap is movably sleeved on the puncture needle, a needle handle is arranged on the puncture needle, a connecting hose is communicated with one end of the needle handle far away from the puncture needle, a hard tube is communicated with one end of the connecting hose far away from the needle handle, a protective cover is arranged on the hard tube, one end of the hard tube penetrates through the protective cover and extends to the inside of the protective cover, a connecting head is threadedly connected to the hard tube, a protective sleeve is arranged at one end of the connecting head far away from the hard tube, a tail needle is arranged inside the protective sleeve, one end of the tail needle is coaxially communicated with the connecting head, a rubber tube is arranged on the connecting head, and the tail needle is located inside the rubber tube.
[0006] The beneficial effect of the utility model is: after blood collection, by separating the hard tube from the connecting head, at this time the protective sleeve protects the tail needle to avoid being pricked by the tail needle, and the protective cover protects the connection part of the hard tube to avoid blood staining on the hands of medical staff. During the overall operation, medical staff will not touch the connection part of the hard tube and the connecting head, avoiding contamination of the connection part.
[0007] To facilitate the adjustment of the position of the protective cover;
[0008] As a further improvement of the above technical solution: a chute is provided on the rigid tube, the protective cover is slidably connected to the inside of the chute, and a locking assembly for fixing the protective cover is provided in the chute.
[0009] The beneficial effect of this improvement is that when separating the rigid tube from the connector, slide the protective cover to one end of the rigid tube close to the connection, fix it through the locking assembly, and then rotate the protective cover to separate the rigid tube from the connector. At this time, the connection between the rigid tube and the connector is inside the protective cover, preventing blood from getting on the medical staff. When connecting the infusion set to the rigid tube, slide the protective cover away from the connection end and fix it through the locking assembly, which can facilitate the connection of the infusion set to the rigid tube and prevent blood on the inner wall of the protective cover from getting on the hands of the medical staff.
[0010] To fix the position of the protective cover;
[0011] As a further improvement of the above technical solution: the locking assembly includes a plurality of reed pieces connected to the inner walls on both sides of the chute and bump points connected to the protective cover, and the plurality of reed pieces are equidistantly arranged along the length extension direction of the chute.
[0012] The beneficial effect of this improvement is that when sliding the protective cover, the bump points on the protective cover inside the chute will squeeze the reed pieces to deform. When the protective cover slides to the appropriate position and needs to be fixed, the bump points are located between two adjacent reed pieces, and without external force, the protective cover will not slide easily.
[0013] To facilitate the sliding of the protective cover;
[0014] As a further improvement of the above technical solution: an auxiliary handle is provided at one end of the rigid tube away from the tail needle, and two finger rings are symmetrically provided on the protective cover.
[0015] The beneficial effect of this improvement is that when it is necessary to slide the protective cover and change its position, the medical staff puts the index finger and middle finger into the two finger rings respectively, and at the same time, the thumb presses the position of the auxiliary handle according to their own habits. When the index finger and middle finger move towards or away from the thumb, the protective cover slides.
[0016] To reduce occupational exposure;
[0017] As a further improvement of the above technical solution: a protective ring is provided on the protective sleeve, and the connector is located inside the protective ring.
[0018] The beneficial effects of this improvement are as follows: When the connector is separated from the rigid tube, the connector will be contaminated with blood. At this time, medical staff may touch the blood on the connector, increasing the risk of occupational exposure. At this time, the setting of the protective ring can block the connector, preventing medical staff from touching the blood on the connector and reducing occupational exposure.
[0019] For the convenience of unscrewing the protective sleeve;
[0020] As a further improvement of the above technical solution: The protective sleeve is provided with anti-slip lines.
[0021] The beneficial effect of this improvement is that the setting of the anti-slip lines can increase the friction between the hand and the protective sleeve, making it more labor-saving and convenient for medical staff to unscrew the protective sleeve. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 is a three-dimensional structural schematic diagram of the prior art of the present utility model;
[0023] Figure 2 is a three-dimensional structural schematic diagram of the present utility model;
[0024] Figure 3 is a sectional structural schematic Figure 1 ;
[0025] Figure 4 is a sectional structural schematic Figure 2 ;
[0026] Figure 5 is of the present utility model Figure 3 an enlarged structural schematic diagram of A;
[0027] Figure 6 is of the present utility model Figure 4 an enlarged structural schematic diagram of B.
[0028] In the figure: 1, puncture needle; 2, needle cap; 3, needle handle; 4, connecting hose; 5, rigid tube; 6, protective cover; 7, connector; 8, protective sleeve; 9, tail needle; 10, rubber tube; 11, chute; 1201, reed; 1202, bump; 13, auxiliary handle; 14, finger ring; 15, protective ring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description of this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present utility model.
[0030] Such as Figure 1As shown in the figure, it is a schematic structural diagram of the prior art of the present utility model, including a puncture needle 1, a needle handle 3 connected to one end of the puncture needle 1, a connecting hose 4 connected to the end of the needle handle 3 away from the puncture needle 1, a rigid tube 5 connected to one end of the hose, a connector 7 threadedly connected to the rigid tube 5, a tail needle 9 provided on the connector 7, and a rubber tube 10. When in use, after blood collection is completed, the connector 7 is separated from the rigid tube 5, and then the rigid tube 5 is connected to an infusion set. However, when separating the connector 7 from the rigid tube 5, it is easy to get blood on the hand, and the tail needle 9 is completely exposed, posing a risk of needle stick injury. Moreover, during the operation, it is easy to contaminate the connection position of the rigid tube 5. Therefore, the following improvements are made to the above situation: As Figures 2 - 6 shown, an improved blood collection needle, a needle cap 2 is movably sleeved on the puncture needle 1, a needle handle 3 is provided on the puncture needle 1, a connecting hose 4 is communicated with the end of the needle handle 3 away from the puncture needle 1, a rigid tube 5 is communicated with the end of the connecting hose 4 away from the needle handle 3, a protective cover 6 is provided on the rigid tube 5, one end of the rigid tube 5 penetrates through the protective cover 6 and extends into the interior of the protective cover 6, a connector 7 is threadedly connected to the rigid tube 5, a protective sleeve 8 is provided at the end of the connector 7 away from the rigid tube 5, a tail needle 9 is arranged in the protective sleeve 8, one end of the tail needle 9 is coaxially communicated with the connector 7, a rubber tube 10 is provided on the connector 7, and the tail needle 9 is located inside the rubber tube 10;
[0031] Specifically, since the blood vessel conditions of many children or elderly patients are not good clinically, usually an infusion set is connected to the patient for infusion after blood collection to reduce the number of punctures on the patient. Open the needle cap 2, then hold the needle handle 3 and insert the puncture needle 1 into the patient's blood vessel, and then insert the tail needle 9 into the blood collection tube. At this time, under the negative pressure of the blood collection tube, blood enters the blood collection tube through the puncture needle 1, connecting hose 4, rigid tube 5, connector 7, and tail needle 9. After blood collection is completed, the blood collection tube needs to be separated from the tail needle 9. By rotating the protective sleeve 8, the connector 7 is separated from the rigid tube 5. At this time, due to the setting of the protective sleeve 8, the tail needle 9 is always located inside the protective sleeve 8, avoiding the risk of tail needle 9 stabbing. Then hold the protective sleeve 8 with one hand and hold the protective cover 6 with the other hand, separate the connector 7 from the rigid tube 5, and then throw the protective cover 6 and the tail needle 9 into the yellow trash can. At this time, the rigid tube 5 is inside the protective cover 6, and the blood on the rigid tube 5 will not get on the hands of medical staff due to the setting of the protective cover 6, and medical staff will not directly touch the connection part of the rigid tube 5, preventing contamination of the connection part. Then connect the connection part of the infusion set to the rigid tube 5 to continue intravenous infusion. During this process, risks such as accidental injury of the tail needle 9, getting blood on the hand, and contamination of the connection part can be avoided.
[0032] Preferably, a chute 11 is provided on the rigid tube 5, and the protective cover 6 is slidably connected to the inside of the chute 11. A locking assembly for fixing the protective cover 6 is provided in the chute 11. When separating the rigid tube 5 from the connector 7, slide the protective cover 6 to one end of the rigid tube 5 near the connection, fix it through the locking assembly, and then rotate the protective cover 6 to separate the rigid tube 5 from the connector 7. At this time, the connection between the rigid tube 5 and the connector 7 is located inside the protective cover 6, preventing blood from splashing onto medical staff. When connecting the infusion set to the rigid tube 5, slide the protective cover 6 away from the connection end and fix it through the locking assembly, which facilitates the connection of the infusion set to the rigid tube 5 and prevents blood on the inner wall of the protective cover 6 from getting on the hands of medical staff.
[0033] Preferably, the locking assembly includes a plurality of reed pieces 1201 connected to the inner walls on both sides of the chute 11 and bump points 1202 connected to the protective cover 6. The plurality of reed pieces 1201 are equidistantly arranged along the length extension direction of the chute 11. The reed pieces 1201 can be made of elastic materials such as rubber and silica gel. When sliding the protective cover 6, the bump points 1202 on the protective cover 6 inside the chute 11 will squeeze the reed pieces 1201 to deform. When the protective cover 6 slides to a suitable position for fixing, the bump points 1202 are located between two adjacent reed pieces 1201. Without external force, the protective cover 6 will not slide easily.
[0034] Preferably, an auxiliary handle 13 is provided at one end of the rigid tube 5 away from the tail needle 9, and two finger rings 14 are symmetrically provided on the protective cover 6. When it is necessary to slide the protective cover 6 and change its position, medical staff put their index finger and middle finger into the two finger rings 14 respectively, and at the same time, according to their own habits, the thumb presses the position of the auxiliary handle 13. When the index finger and middle finger move towards or away from the thumb, the protective cover 6 slides.
[0035] Preferably, a protective ring 15 is provided on the protective sleeve 8, and the connector 7 is located inside the protective ring 15. When separating the connector 7 from the rigid tube 5, blood will be contaminated on the connector 7. At this time, medical staff may touch the blood on the connector 7, increasing the risk of occupational exposure. At this time, the setting of the protective ring 15 can block the connector 7 and prevent medical staff from touching the blood on the connector 7, reducing occupational exposure.
[0036] Preferably, anti-slip patterns are provided on the protective sleeve 8. The setting of the anti-slip patterns can increase the friction between the hand and the protective sleeve 8, making it more labor-saving and convenient for medical staff to unscrew the protective sleeve 8.
[0037] The working principle and use process of the utility model are as follows: when using the device, first open the needle cap 2, then hold the needle handle 3 to pierce the puncture needle 1 into the patient's blood vessel, and then insert the tail needle 9 into the blood collection tube. At this time, the blood enters the blood collection tube through the puncture needle 1, the connecting hose 4, the hard tube 5, the connecting head 7, and the tail needle 9 under the negative pressure of the blood collection tube. When the blood drawing is completed, slide the protective cover 6 inside the slide groove 11, and then make the convex point 1202 stuck between the two adjacent reeds 1201 to fix the position of the protective cover 6. By rotating the protective cover 8, the connecting head 7 is separated from the hard tube 5, and then the protective cover 8, the needle and the connecting head 7 are thrown into the medical waste bin together. At this time, the connection of the hard tube 5 is located inside the protective cover 6, and then the medical staff puts their index finger The left and right fingers are placed in the two finger rings 14 respectively, and the thumb is used to press the position of the auxiliary handle 13 according to one's own habits, so as to slide the protective cover 6 in the direction close to the connecting hose 4, and then the protrusion 1202 is inserted between the two adjacent spring sheets 1201 for fixation. At this time, the connection of the hard tube 5 is outside the protective cover 6, and then the infusion set is connected to the hard tube 5 to fully expose the contact position. When the connection is completed, the protective cover 6 is slid away from the connecting hose 4 and fixed to protect the connection between the infusion set and the hard tube 5. During the overall use of the utility model, after the blood collection is completed, it can be connected to the infusion set for intravenous infusion, and the risks of accidental injury by the tail needle 9, blood staining on the hands and contamination of the connection can be avoided during the connection.
[0038] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0039] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the utility model.
Claims
1. An improved blood collection needle, comprising a puncture needle (1), a needle cap (2) being movably sleeved on the puncture needle (1), a needle handle (3) being provided on the puncture needle (1), and a connecting hose (4) being connected to the end of the needle handle (3) away from the puncture needle (1), characterized in that: The end of the connecting hose (4) away from the needle handle (3) is connected to a hard tube (5), a protective cover (6) is provided on the hard tube (5), one end of the hard tube (5) passes through the protective cover (6) and extends to the inside of the protective cover (6), a connector (7) is threadedly connected to the hard tube (5), a protective sleeve (8) is provided at the end of the connector (7) away from the hard tube (5), a tail needle (9) is provided in the protective sleeve (8), one end of the tail needle (9) is coaxially connected to the connector (7), a rubber tube (10) is provided on the connector (7), and the tail needle (9) is located inside the rubber tube (10).
2. The improved blood collection needle according to claim 1, characterized in that: The hard tube (5) is provided with a slide groove (11), the protective cover (6) is slidably connected to the inside of the slide groove (11), and a locking component for fixing the protective cover (6) is provided in the slide groove (11).
3. The improved blood collection needle according to claim 2, characterized in that: The locking assembly comprises a plurality of spring leaves (1201) connected to the inner walls on both sides of the slide groove (11) and a protrusion (1202) connected to the protective cover (6), and the plurality of spring leaves (1201) are arranged at equal distances along the length extension direction of the slide groove (11).
4. The improved blood collection needle according to claim 1, characterized in that: An auxiliary handle (13) is provided at one end of the hard tube (5) away from the tail needle (9), and two finger rings (14) are symmetrically provided on the protective cover (6).
5. The improved blood collection needle according to claim 1, characterized in that: The protective sleeve (8) is provided with a protective ring (15), and the connector (7) is located inside the protective ring (15).
6. The improved blood collection needle according to claim 1, characterized in that: The protective sleeve (8) is provided with anti-slip patterns.