Fixing device of blood taking needle

Abstract

The utility model relates to a fixing device of a blood taking needle, which belongs to the technical field of medical instruments and is used for solving the problems that the blood taking needle of a blood bag in the prior art is easy to displace and the angle is easy to deviate in the use process so that the needle head is attached to the blood vessel wall. The fixing device of the blood taking needle comprises a fixing base, a supporting plate and a fixing assembly, the fixing base is used for supporting the blood taking needle and enabling the blood taking needle to keep a fixed angle, the fixing base is connected with the supporting plate, a pipeline of the blood taking needle penetrates through the supporting plate and is connected with a needle handle, and the fixing assembly is arranged on the fixing base. The fixing assembly is hinged to the supporting plate and matched with the fixing base, and the angle and the position of the blood taking needle can be fixed. The fixing device of the blood taking needle is stable in structure, easy and convenient to operate and capable of fixing the position and the angle of the blood taking needle and preventing the needle head from being attached to the blood vessel wall.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a fixation device for a blood collection needle. Background Technology

[0002] Clinically, blood bags are used for the collection, storage, and transfusion of patients' own blood. A blood bag consists of a built-in lancet, catheter, and bag body. When blood needs to be collected from a patient, the nurse uses the lancet provided with the blood bag to puncture the vein. Once the lancet is successfully inserted, blood can be seen flowing out. Clinically, the lancet is secured with adhesive tape, and the blood flows into the bag through the catheter.

[0003] Clinically, nurses usually place a cotton swab under the blood collection needle and then use adhesive tape to fix the needle in place, adjusting the puncture angle of the needle based on experience.

[0004] When patients clench and unclench their fists as instructed, the cotton swab may fall off, potentially causing the blood collection needle to shift and increasing safety risks. Because the angle of the blood collection needle is easily offset during blood collection, it may stick to the blood vessel wall, requiring multiple adjustments to the needle angle, which can cause tension and anxiety for the patient. Utility Model Content

[0005] Based on the above analysis, the present invention aims to provide a fixing device for blood collection needles to solve the problem in the prior art that blood collection needles of blood bags are prone to displacement and angle deviation during use, resulting in the needle tip sticking to the blood vessel wall.

[0006] The objective of this utility model is mainly achieved through the following technical solutions:

[0007] A fixation device for a blood collection needle includes a fixing base, a support plate, and a fixing component; the fixing base is used to support the blood collection needle and maintain the blood collection needle at a fixed angle; the support plate is connected to the fixing base, and the tubing of the blood collection needle passes through the support plate and is connected to the needle handle; the fixing component is hinged to the support plate and cooperates with the fixing base to fix the angle and position of the blood collection needle.

[0008] The fixed base is provided with a fixed groove and a ball bearing, and the ball bearing is connected to the fixed groove by a spring.

[0009] The fixing component includes an upper fixing plate, a lower fixing plate, and a fixing head, the position and shape of which are matched with the fixing groove.

[0010] Furthermore, the fixing seat abuts against the bearing surface of the fixing device that holds the blood collection needle. The fixing seat has a triangular structure, and the angle between the inclined surface of the fixing seat and the bearing surface of the fixing device that holds the blood collection needle is 15° to 35°. The fixing groove is located at the bottom of the inclined surface of the fixing seat.

[0011] Furthermore, the inner wall shape of the upper fixing plate matches the needle handle, one end of the upper fixing plate is hinged to the support plate, and the other end is connected to the lower fixing plate.

[0012] Furthermore, the lower fixing plate is provided with an opening through which the needle can pass. The other end of the lower fixing plate connected to the upper fixing plate is provided with a fixing head, and the fixing head is provided with a groove, the shape of which is adapted to the ball.

[0013] Furthermore, the support plate is arranged perpendicular to the inclined surface of the fixed base, and the shape of the support plate matches the bottom of the needle handle, so that the support plate can engage with the bottom of the needle handle.

[0014] Furthermore, a connection hole is provided on the support plate, and the pipeline passes through the connection hole and connects to the needle handle, so that the device can move along the pipeline.

[0015] Furthermore, the fixing base also includes a base plate and an adjusting plate, the base plate being hinged to the adjusting plate, and the adjusting plate forming the inclined surface of the fixing base.

[0016] Furthermore, a support plate is provided on the base plate, the support plate is hinged to the base plate, and a limiting groove is provided on the adjusting plate, the support plate can be inserted into the limiting groove, thereby fixing the angle between the adjusting plate and the base plate.

[0017] Furthermore, the fixing base also includes a through hole that extends through both sides of the fixing base.

[0018] Furthermore, the fixing base also includes an adhesive patch that can adhere to the patient's skin, thereby fixing the blood collection needle fixing device to the patient's skin.

[0019] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0020] 1. The fixing device for the blood collection needle of this utility model connects the fixing component to the fixing seat by inserting the fixing head into the fixing groove. The upper fixing plate cooperates with the inclined surface of the fixing seat to tighten the position of the needle handle, so that the position and angle of the blood collection needle are kept fixed and the needle tip is prevented from sticking to the blood vessel wall.

[0021] 2. A connection hole is provided on the support plate. The blood collection needle tube passes through the connection hole and is connected to the needle handle, so that the fixing device of the blood collection needle can move along the tube, and medical staff can move the device according to the operation needs.

[0022] 3. A ball bearing is installed in the fixing groove. The ball bearing is connected to the fixing groove through a spring. A groove is provided on the fixing head. The shape of the groove is adapted to the ball bearing. When the fixing head is inserted into the fixing groove, the ball bearing and the groove cooperate to fix the connection between the fixing component and the fixing seat. It is easy to operate and the structure is stable.

[0023] 4. A through hole is provided on the fixing base, through which the device can be connected to the patient's arm with tape or Velcro strap, thereby increasing the stability of the device fixation;

[0024] 5. The fixed angle of the blood collection needle can be adjusted by the support plate and the adjustment plate, which makes it convenient for medical staff to adjust the blood collection angle according to the needs of the operation;

[0025] 6. An adjustment plate and a base plate are provided. The adjustment plate and the base plate are hinged together, so that the angle of the fixing device of the blood collection needle can be adjusted. The angle between the adjustment plate and the base plate can be fixed by inserting the support plate on the base plate into the limiting groove on the adjustment plate. The structure is stable and easy to operate, making it convenient for medical staff to adjust the fixing angle of the blood collection needle according to the needs of operation. Attached Figure Description

[0026] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0027] Figure 1 This is a schematic diagram of the overall structure of the blood collection needle fixing device according to Embodiment 1 of this utility model;

[0028] Figure 2 This is a schematic diagram of the fixing groove in Embodiment 1 of this utility model;

[0029] Figure 3 This is a longitudinal cross-sectional view of the fixing groove in Embodiment 1 of this utility model;

[0030] Figure 4 This is a schematic diagram of the support plate and fixing assembly of Embodiment 1 of this utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the fixing head in Embodiment 1 of this utility model;

[0032] Figure 6 This is a schematic diagram of the overall structure of the blood collection needle fixing device in Embodiment 2 of this utility model;

[0033] Figure 7 This is a schematic diagram of the overall structure of the blood collection needle fixing device in Embodiment 3 of this utility model;

[0034] Figure 8 A schematic diagram of the connection between the support plate and the limiting groove in Embodiment 3 of this utility model.

[0035] Figure label:

[0036] 1-Fixed base; 11-Fixed groove; 12-Ball bearing; 121-Spring; 13-Adhesive; 14-Through hole; 15-Base plate; 151-Support plate; 16-Adjusting plate; 161-Limiting groove; 2-Support plate; 21-Connecting hole; 3-Fixed assembly; 31-Upper fixed plate; 32-Lower fixed plate; 321-Opening; 33-Fixed head; 331-Groove; 4-Blood collection needle; 41-Needle tip; 42-Needle handle; 43-Tube. Detailed Implementation

[0037] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0038] Example 1

[0039] A specific embodiment of this utility model discloses a fixation device for a blood collection needle, such as... Figure 1 As shown, it includes a fixed base 1, a support plate 2, and a fixing component 3. The fixed base 1 is used to support the blood collection needle 4 and keep the blood collection needle 4 at a fixed angle. The fixed base 1 is connected to the support plate 2. The tube 43 of the blood collection needle 4 passes through the support plate 2 and is connected to the needle handle 42. The fixing component 3 is hinged to the support plate 2. The fixing component 3 cooperates with the fixed base 1 to fix the angle and position of the blood collection needle 4.

[0040] like Figures 1-2 As shown, the fixing seat 1 has a triangular structure. The fixing seat (1) abuts against the bearing surface of the fixing device for placing the blood collection needle. The angle between the inclined surface of the fixing seat and the bearing surface of the fixing device for placing the blood collection needle is 15° to 35°. The fixing seat 1 is provided with a fixing groove 11, a ball bearing 12 and an adhesive tape 13. The adhesive tape 13 is located at the bottom of the fixing seat 1 and can adhere to the patient's skin, so that the fixing device for the blood collection needle is fixed on the patient's skin. The fixing groove 11 is located at the bottom of the inclined surface of the fixing seat 1, and the ball bearing 12 is provided in the fixing groove 11. Figure 3 As shown, the ball bearing 12 is connected to the fixing groove 11 via the spring 121. The fixing groove 11 cooperates with the fixing component 3 to fix the position and angle of the blood collection needle 4.

[0041] like Figure 4As shown, the support plate 2 is set perpendicular to the inclined surface of the fixing base 1. The shape of the support plate 2 matches the bottom of the needle handle 42, allowing the support plate 2 to engage with the bottom of the needle handle 42. A connecting hole 21 is provided on the support plate 2, through which the tube 43 passes and connects to the needle handle 42, allowing the device to move along the tube 43. The fixing assembly 3 includes an upper fixing plate 31, a lower fixing plate 32, and a fixing head 33. The inner wall shape of the upper fixing plate 31 matches the needle handle 42. One end of the upper fixing plate 31 is hinged to the support plate 2, and the other end is connected to the lower fixing plate 32. Preferably, the upper fixing plate 31 and the lower fixing plate 32 are set perpendicularly. An opening 321 is provided on the lower fixing plate 32, through which the needle tip 41 can pass. The other end of the lower fixing plate 32 connected to the upper fixing plate 31 is provided with a fixing head 33. The position and shape of the fixing head 33 match the fixing groove 11, thereby connecting the fixing assembly 3 to the fixing base 1 and fixing the position and angle of the blood collection needle 4. When the fixing component 3 is connected to the fixing base 1, the upper fixing plate 31 is parallel to the inclined surface of the fixing base 1, and the needle 41 penetrates the patient's blood vessel through the opening 321.

[0042] like Figure 5 As shown, a groove 331 is provided on the fixing head 33. The shape of the groove 331 is adapted to the ball 12. When the fixing head 33 is inserted into the fixing groove 11, the fixing head 33 squeezes the ball 12, causing the ball 12 to compress the spring 121 and retract. When the fixing head 33 moves to the fixing groove 11 and is directly opposite the ball 12, the spring 121 resets and drives the ball 12 into the groove 331, thereby fixing the connection between the fixing component 3 and the fixing seat 1.

[0043] When it is necessary to fix the blood collection needle 4, after inserting the needle tip 41 into the blood vessel, move the device along the tubing 43 to the position of the needle handle 42, so that the support plate 2 engages with the bottom of the needle handle 42, rotate the upper fixing plate 31 towards the fixing seat 1, so that the needle tip 41 passes through the opening 321 and the fixing head 33 enters the fixing groove 11, move the upper fixing plate 31 until the ball bearing 12 enters the groove 331, so that the upper fixing plate 31 presses the needle handle 42, thereby fixing the position and blood collection angle of the blood collection needle 4 and preventing the needle tip 41 from sticking to the blood vessel wall, peel off the release paper of the adhesive patch 13, so that the adhesive patch 13 adheres to the patient's skin, thereby fixing the device.

[0044] Example 2

[0045] Another embodiment of this utility model, such as Figure 6 As shown, the difference from Embodiment 1 is that the fixing base 1 also includes a through hole 14, which extends through both sides of the fixing base 1. By passing tape or Velcro straps through the through hole 14 and attaching or fastening them to the patient's arm, the device can be further fixed, thereby improving the stability of the device when it is fixed.

[0046] Example 3

[0047] Another embodiment of this utility model, such as Figure 7 As shown, the difference from Embodiment 1 or Embodiment 2 is that the fixing base 1 includes a base plate 15 and an adjusting plate 16. The base plate 15 and the adjusting plate 16 cooperate to adjust the fixing angle of the blood collection needle 4.

[0048] A support plate 151 is provided on the base plate 15, and the support plate 151 is hinged to the base plate 15. The base plate 15 is also hinged to an adjusting plate 16. The adjusting plate 16 forms the inclined surface of the fixed seat 1. The adjusting plate 16 can rotate along the connection point with the base plate 15, thereby changing the angle between the adjusting plate 16 and the base plate 15, and thus changing the fixing angle of the blood collection needle 4. A limiting groove 161 is provided on the adjusting plate 16, such as... Figure 8 As shown, the support plate 151 can be inserted into the limiting groove 161 to fix the angle between the adjusting plate 16 and the base plate 15, so that medical staff can adjust the blood collection angle according to the operation needs. The gap between the support plate 151, the base plate 15 and the adjusting plate 16 forms a through hole 14. By passing tape or Velcro strap through the through hole 14 and bonding or fastening it to the patient's arm, the device can be further fixed and the stability of the device when fixed can be improved.

[0049] Preferably, the angle adjustment range between the adjusting plate 16 and the base plate 15 is 15° to 35°.

[0050] Compared with the prior art, the blood collection needle fixing device of this utility model can fix the position and angle of the blood collection needle 4 through the cooperation of the fixing base 1 and the fixing component 3, preventing the needle tip 41 from sticking to the blood vessel wall; the setting of the connecting hole 21 allows the device to move along the pipeline 43, allowing medical staff to move the device according to the operation needs; the fixing head 33 cooperates with the fixing groove 11 to fix the connection between the fixing component 3 and the fixing base 1, which is convenient to operate and has a stable structure; the through hole 14 allows the device to be connected to the patient's arm with tape or Velcro strap, thereby increasing the stability of the device fixation; the fixing angle of the blood collection needle 4 can be adjusted by the support plate 151 and the adjusting plate 16, which is convenient for medical staff to adjust the blood collection angle according to the operation needs; the angle between the adjusting plate 16 and the base plate 15 is fixed by the insertion of the support plate 151 into the limiting groove 161, which is structurally stable and convenient to operate.

[0051] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for fixing a blood collection needle, characterized in that, It includes a fixed base (1), a support plate (2), and a fixing component (3); the fixed base (1) is used to support the blood collection needle (4) and keep the blood collection needle (4) at a fixed angle; the support plate (2) is connected to the fixed base (1), and the tube (43) of the blood collection needle (4) passes through the support plate (2) and is connected to the needle handle (42); the fixing component (3) is hinged to the support plate (2), and the fixing component (3) cooperates with the fixed base (1) to fix the angle and position of the blood collection needle (4); The fixed base (1) is provided with a fixed groove (11) and a ball (12), and the ball (12) is connected to the fixed groove (11) by a spring (121); The fixing component (3) includes an upper fixing plate (31), a lower fixing plate (32), and a fixing head (33), the position and shape of which are matched with the fixing groove (11).

2. The fixation device for the blood collection needle according to claim 1, characterized in that, The fixing seat (1) abuts against the bearing surface of the fixing device for placing the blood collection needle. The fixing seat (1) has a triangular structure. The angle between the inclined surface of the fixing seat (1) and the bearing surface of the fixing device for placing the blood collection needle is 15° to 35°. The fixing groove (11) is located at the bottom of the inclined surface of the fixing seat (1).

3. The fixation device for the blood collection needle according to claim 1, characterized in that, The inner wall shape of the upper fixing plate (31) matches the needle handle (42). One end of the upper fixing plate (31) is hinged to the support plate (2), and the other end is connected to the lower fixing plate (32).

4. The fixation device for the blood collection needle according to claim 3, characterized in that, An opening (321) is provided on the lower fixing plate (32), through which the needle (41) can pass. The other end of the lower fixing plate (32) connected to the upper fixing plate (31) is provided with a fixing head (33), and a groove (331) is provided on the fixing head (33). The shape of the groove (331) is adapted to the ball (12).

5. The fixation device for the blood collection needle according to claim 1, characterized in that, The support plate (2) is set perpendicular to the inclined surface of the fixed base (1), and the shape of the support plate (2) matches the bottom of the needle handle (42), so that the support plate (2) can engage with the bottom of the needle handle (42).

6. The fixation device for the blood collection needle according to claim 5, characterized in that, The support plate (2) is provided with a connection hole (21), and the pipe (43) passes through the connection hole (21) and is connected to the needle handle (42), so that the device can move along the pipe (43).

7. The fixation device for the blood collection needle according to claim 1, characterized in that, The fixed base (1) also includes a base plate (15) and an adjusting plate (16), the base plate (15) and the adjusting plate (16) are hinged together, and the adjusting plate (16) forms the inclined surface of the fixed base (1).

8. The fixation device for the blood collection needle according to claim 7, characterized in that, A support plate (151) is provided on the base plate (15), the support plate (151) is hinged to the base plate (15), and a limiting groove (161) is provided on the adjusting plate (16), the support plate (151) can be inserted into the limiting groove (161) to fix the angle between the adjusting plate (16) and the base plate (15).

9. The fixing device for the blood collection needle according to any one of claims 1 to 8, characterized in that, The fixing base (1) also includes a through hole (14) that extends through both sides of the fixing base (1).

10. The fixation device for the blood collection needle according to claim 9, characterized in that, The fixing base (1) also includes an adhesive patch (13) that can adhere to the patient's skin, so that the fixing device of the blood collection needle is fixed on the patient's skin.

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