Blood taking needle anti-needle stick injury device

Abstract

The utility model discloses a blood taking needle anti -needle stab device, its technical scheme main points are, including holding needle ware sleeve: holding needle ware sleeve one end assembly is provided with the connector, and the connector is inlayed and is provided with the blood collection needle body, and the blood collection needle body other end intercommunication is provided with blood taking needle body, the connector is externally provided with the rubber plug, and holding needle ware sleeve is assembled and is provided with the anti -stab mechanism in. Through the movement cooperation of the anti -stab mechanism its multiple structures, it can promote the anti -stab rubber cover in the vacuum blood collection tube and blood collection needle body complete blood collection operation, and move and cover blood collection needle body quickly, thereby avoiding blood collection needle body to expose to the outside environment, thereby reduce the risk of being pricked by needle, reduced the accidental injury in the use process. Meanwhile through the anti -stab mechanism, the anti -stab rubber cover can be shielded automatically after blood collection needle body completes blood collection, and the trouble of manual operation of medical staff is saved, and the work efficiency is improved. Simple, quick operation helps to reduce the operation failure and delay.

Description

Technical Field

[0001] This utility model relates to the field of blood collection instruments, and in particular to a device for preventing needlestick injuries from blood collection needles. Background Technology

[0002] A blood collection needle, also known as a lancet or stenography needle, is a medical device specifically designed to extract blood samples from human blood vessels. Blood collection needles are widely used in various medical testing, diagnosis, monitoring of treatment effectiveness, and scientific research.

[0003] The split-type blood collection needle is a commonly used disposable blood collection needle in clinical practice, which has basically replaced the syringe blood collection method used in the last century. It is often used in conjunction with disposable blood collection tubes. Its structure consists of a blood collection needle connected to the needle hub at the end of the tubing of the intravenous infusion needle. When using it, the blood collection needle needs to be rotated and fixed at the front end of the outer cylinder of the needle holder. After the intravenous puncture needle is successfully punctured into the vein, the vacuum blood collection tube is inserted into the cavity at the rear end of the needle holder, so that the cutting edge of the blood collection needle passes through the blood-blocking sleeve and pierces the rubber stopper of the vacuum tube. Under negative pressure, the blood is drawn into the blood collection tube. If necessary, this process can be repeated to collect blood from multiple tubes. After blood collection is completed, the intravenous puncture needle is removed to stop local bleeding. The blood collection needle is then removed from the needle holder and discarded along with the intravenous puncture needle in a waste box.

[0004] However, after medical staff collect blood from patients, they often put the needle cap back on the existing blood collection needle to prevent the exposed needle from accidentally injuring others during subsequent handling, thereby reducing the risk of infectious disease transmission. However, medical staff have found in daily use that the blood collection needle inside the needle holder is still exposed, and needlestick injuries are very likely to occur when the needle cap is put back on the blood collection needle.

[0005] Therefore, a needlestick injury prevention device for blood collection needles is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a needlestick injury prevention device for blood collection needles. By setting an elastically retractable inner sleeve of the syringe, the blood collection needle is protected in time, avoiding it from being exposed and thus causing needlestick injury.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0008] A needlestick injury prevention device for blood collection needles includes a needle holder sleeve: a connector is mounted on one end of the needle holder sleeve, a blood collection needle body is embedded in the connector, and the other end of the blood collection needle body is connected to the blood collection needle body; a rubber plug is sleeved on the outside of the connector.

[0009] The needle holder sleeve is equipped with an anti-puncture mechanism.

[0010] The anti-puncture mechanism includes a positioning ring fixedly installed inside the needle holder sleeve, and a compression spring is connected to the side of the positioning ring; one end of the blood collection needle body passes through the center of the positioning ring and extends into the needle holder sleeve.

[0011] The anti-puncture mechanism also includes an anti-puncture rubber sleeve, which is hollow cylindrical and has a through hole. The anti-puncture rubber sleeve has openings at both ends and surrounds the blood collection needle body.

[0012] Furthermore, the anti-puncture rubber sleeve is integrally provided with a stop plate on the outside, and one end of the compression spring extends and connects to the stop plate.

[0013] Furthermore, a pressure ring is integrally fitted onto the outer wall of the side end of the anti-puncture rubber sleeve.

[0014] Furthermore, an opening is provided on one side of the needle holder sleeve, and a vacuum blood collection tube is provided on the side of the needle holder sleeve. The vacuum blood collection tube passes through the opening of the needle holder sleeve and is inserted into the needle holder sleeve to abut against the pressure ring.

[0015] Furthermore, the connector has an external slot; the rubber plug has an internal protrusion, the external slot of the connector is adapted to engage with the internal protrusion of the rubber plug, and the rubber plug has a groove that can surround the blood collection needle body.

[0016] Furthermore, a gripping ring is fitted around the outside of the needle holder sleeve.

[0017] In summary, this utility model has the following beneficial effects:

[0018] Through the coordinated movement of multiple components of the anti-puncture mechanism within the needle holder sleeve, the anti-puncture sheath quickly moves and covers the blood collection needle body after the blood collection process is completed, thus preventing the needle body from being exposed to the external environment and reducing the risk of needle pricks and accidental injuries during use. Simultaneously, the anti-puncture mechanism automatically covers the needle body after blood collection, eliminating the need for manual operation by medical personnel and improving work efficiency. The simple and rapid operation helps reduce operational errors and delays. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0020] Figure 2 This is a schematic diagram of the overall installation structure of the anti-puncture mechanism in this embodiment;

[0021] Figure 3This is a schematic diagram of the installation structure of the blood collection needle body within the connector in this embodiment.

[0022] In the diagram, 1. Needle holder sleeve; 11. Grip ring; 2. Connector; 3. Anti-puncture mechanism; 31. Positioning ring; 32. Compression spring; 33. Support plate; 34. Anti-puncture rubber sleeve; 35. Pressure ring; 4. Puncture needle body; 41. Blood collection needle body; 5. Vacuum blood collection tube; 6. Rubber stopper. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0025] First embodiment;

[0026] Reference Figure 1-3 As shown, in a preferred embodiment of this utility model, a needle collection needle body 41 is provided with a needle holder sleeve 1. A connector 2 is assembled at one end of the needle holder sleeve 1, and a blood collection needle body 4 is embedded in the connector 2. The other end of the blood collection needle body 4 is connected to the blood collection needle body 41. A rubber plug 6 is sleeved on the outside of the connector 2.

[0027] The needle holder sleeve 1 is equipped with an anti-puncture mechanism 3;

[0028] Among them, the anti-puncture mechanism 3 includes a positioning ring 31 fixedly installed in the needle holder sleeve 1, and a compression spring 32 is connected to the side of the positioning ring 31; one end of the blood collection needle body 4 passes through the center of the positioning ring 31 and extends into the needle holder sleeve 1.

[0029] The anti-puncture mechanism 3 also includes an anti-puncture rubber sleeve 34, which is a hollow column with a through hole. The anti-puncture rubber sleeve 34 has openings at both ends and surrounds the blood collection needle body 4.

[0030] After one end of the blood collection needle body 4 is connected to the blood collection needle body 41, the user can push the vacuum blood collection tube 5 into the connector 2. At this time, the anti-puncture rubber sleeve 34 will be pushed by the vacuum blood collection tube 5 and move along the outside of the blood collection needle body 4 until the blood collection needle body 4 is exposed and the vacuum blood collection tube 5 is punctured. At this time, the vacuum blood collection tube 5 can maintain communication with the blood collection needle body 4. After the blood collection tube 5 has finished collecting blood, the anti-puncture rubber sleeve 34 in the anti-puncture mechanism 3 is elastically reset by the compression spring 32, so that it can be elastically pushed out and cover the blood collection needle body 4 again, thereby avoiding direct contact between the blood collection needle body 4 and the external environment.

[0031] In this embodiment, through the coordinated movement of multiple structures of the anti-puncture mechanism 3 provided within the needle holder sleeve 1, the anti-puncture rubber sleeve 34 can be pushed to quickly move and cover the blood collection needle body 4 after the blood collection operation is completed by the vacuum blood collection tube 5 and the blood collection needle body 4. This prevents the blood collection needle body 4 from being exposed to the external environment, thereby reducing the risk of needle pricks and minimizing accidental injuries during use. Simultaneously, through the anti-puncture mechanism 3, the anti-puncture rubber sleeve 34 can automatically cover the blood collection needle body 4 after blood collection is completed, eliminating the hassle of manual operation for medical personnel and improving work efficiency. The operation is simple and quick, helping to reduce operational errors and delays.

[0032] Second embodiment;

[0033] Reference Figure 3 As shown, the anti-puncture rubber sleeve 34 is integrally provided with a stop plate 33 on the outside, and one end of the compression spring 32 extends and connects to the stop plate 33. The stop plate 33 can be used to connect with the compression spring 32, so that when the anti-puncture rubber sleeve 34 moves, the stop plate 33 can squeeze the compression spring 32, thereby compressing the compression spring 32.

[0034] Third embodiment;

[0035] Reference Figure 3 As shown, a pressure ring 35 is integrally fitted on the outer wall of the side end of the anti-puncture rubber sleeve 34. The pressure ring 35 can be used to cooperate with the end of the vacuum blood collection tube 5. When the vacuum blood collection tube 5 is pressed into the needle holder sleeve 1, the pressure ring 35 is pressed by the end of the vacuum blood collection tube 5, so that the pressure ring 35 can drive the anti-puncture rubber sleeve 34 to move to one side of the blood collection needle body 4.

[0036] Fourth embodiment;

[0037] Reference Figure 1-3As shown, an opening is provided on one side of the needle holder sleeve 1, and a vacuum blood collection tube 5 is provided on the side of the needle holder sleeve 1. The vacuum blood collection tube 5 passes through the opening of the needle holder sleeve 1 and is inserted into the needle holder sleeve 1 to abut against the pressure ring 35. The vacuum blood collection tube 5 can be used to cooperate with the blood collection needle body 4 to collect the blood pumped into the blood collection needle body 41.

[0038] Fifth embodiment;

[0039] Reference Figure 1 As shown, connector 2 has an external slot; the rubber stopper 6 has an internal protrusion. The external slot of connector 2 and the internal protrusion of rubber stopper 6 are fitted and engaged. Rubber stopper 6 has a groove that can surround the blood collection needle body 4. The connector 2 can be inserted and engaged with rubber stopper 6. After the blood collection needle body 4 has completed the blood collection task, the user can insert rubber stopper 6 back into connector 2, thereby using rubber stopper 6 to further shield the blood collection needle body 4, thus improving the puncture resistance of the blood collection needle body 4.

[0040] Sixth embodiment;

[0041] Reference Figure 1 As shown, a grip ring 11 is fitted onto the outside of the needle holder sleeve 1. The grip ring 11 is provided for the user to grip the needle holder sleeve 1.

[0042] Specific implementation process:

[0043] Step 1: When medical staff need to use the blood collection needle body 41 to collect blood, first remove the rubber stopper 6 from the end of the connector 2. At this time, the blood collection needle body 4 located on the side of the connector 2 will be exposed. Then, the user connects the needle tube part of the blood collection needle body 41 to the blood collection needle body 4 to maintain the connection between the two.

[0044] Step 2: After one end of the blood collection needle body 4 is connected to the blood collection needle body 41, the user presses the vacuum blood collection tube 5 into the needle holder sleeve 1. The pressure ring 35 is pressed by the end of the vacuum blood collection tube 5, which causes the pressure ring 35 to move the anti-puncture rubber sleeve 34 to one side of the blood collection needle body 4. At this time, the compression spring 32 is compressed by the pressure plate 33. When the anti-puncture rubber sleeve 34 gradually moves until the end of the blood collection needle body 4 contacts the vacuum blood collection tube 5 and punctures the blood-blocking sleeve of the vacuum blood collection tube 5, the blood collection needle body 4 is then placed inside the vacuum blood collection tube 5. The user then inserts the blood collection needle body 41 into the arm of the blood collection personnel. Under the influence of negative pressure, the blood collection operation can be carried out.

[0045] Step 3: After the blood collection tube 5 has been collected, the user pulls out the vacuum blood collection tube 5 and disconnects it from the connector 2. At this time, the compression spring 32 will disengage from the limit and thus elastically reset. When the compression spring 32 resets, the abutment plate 33 connected to it can push the anti-puncture rubber sleeve 34 to move. By moving the anti-puncture rubber sleeve 34, the end of the blood collection needle body 4 is completely surrounded. At this time, the anti-puncture mechanism 3 can complete the enclosure of the blood collection needle body 4, thereby preventing the blood collection needle body 4 from causing needle puncture injuries to the outside world.

[0046] Step 4: After the blood collection tube 5 has been collected, the user can remove the blood collection needle body 41 and hold the rubber stopper 6 again to cover the other end of the blood collection needle body 4, thereby further protecting the blood collection needle body 4.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A needlestick injury prevention device for blood collection needles, comprising a needle holder sleeve (1), characterized in that: The needle holder sleeve (1) is equipped with a connector (2) at one end, and a blood collection needle body (4) is embedded in the connector (2). The blood collection needle body (4) is connected to a blood collection needle body (41) at the other end; a rubber plug (6) is sleeved on the outside of the connector (2). The needle holder sleeve (1) is equipped with an anti-puncture mechanism (3); The anti-puncture mechanism (3) includes a positioning ring (31) fixedly installed inside the needle holder sleeve (1), and a compression spring (32) is connected to the side of the positioning ring (31); one end of the blood collection needle body (4) passes through the center of the positioning ring (31) and extends into the needle holder sleeve (1). The anti-puncture mechanism (3) also includes an anti-puncture rubber sleeve (34), which is a hollow column with a through hole. The anti-puncture rubber sleeve (34) has openings at both ends and surrounds the blood collection needle body (4).

2. The needlestick injury prevention device for blood collection needles according to claim 1, characterized in that: The anti-puncture rubber sleeve (34) is integrally provided with a stop plate (33) on the outside, and one end of the compression spring (32) extends and connects to the stop plate (33).

3. The needlestick injury prevention device for blood collection needles according to claim 1, characterized in that: The anti-puncture rubber sleeve (34) has a pressure ring (35) integrally fitted on the outer wall of its side end.

4. The needlestick injury prevention device for blood collection needles according to claim 3, characterized in that: The needle holder sleeve (1) has an opening on one side, and a vacuum blood collection tube (5) is provided on the side of the needle holder sleeve (1). The vacuum blood collection tube (5) passes through the opening of the needle holder sleeve (1) and is inserted into the needle holder sleeve (1) to abut against the pressure ring (35).

5. The needlestick injury prevention device for blood collection needles according to claim 1, characterized in that: The connector (2) has a slot on the outside; the rubber plug (6) has a protrusion inside. The slot on the outside of the connector (2) is adapted to engage with the protrusion inside the rubber plug (6). The rubber plug (6) has a hole and can surround the blood collection needle body (4).

6. The needlestick injury prevention device for blood collection needles according to claim 1, characterized in that: The needle holder sleeve (1) is fitted with a gripping ring (11).

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