A scalp vein blood taking needle for children

Abstract

The utility model discloses a special scalp vein blood taking needle for children, one end of needle body is equipped with needle point, needle point has needle point bevel, and the included angle between needle point bevel and the reference plane is arranged as 15 30 degrees, the needle body diameter is 0.3 0.6mm, and the length is 10 15mm, the other end of needle body is equipped with needle handle, the both sides symmetry of needle handle bottom is equipped with fixed wing, the fixed wing is arc shape setting, the fixed wing can be bonded on the scalp of children, the one end of needle handle is equipped with drainage tube with needle body not being connected, the drainage tube is equipped with flow regulator, and the inside of drainage tube is equipped with anti -back blood mechanism along the position between flow regulator and needle handle, the special scalp vein blood taking needle for children is designed through the utility model, aiming at the characteristics of children's scalp vein, the needle point angle is designed as 15 30 degrees, and the needle body diameter and length are 0.3 0.6mm and 10 15mm respectively, are more suitable for the tender scalp and small blood vessel of children, can reduce the difficulty of puncture, and reduce the pain of sick children.

Description

Technical Field

[0001] This utility model belongs to the field of blood collection needle technology, specifically relating to a scalp vein blood collection needle for children. Background Technology

[0002] In the medical field, blood collection from children is a common procedure in clinical diagnosis and treatment. Due to the superficial nature and ease of fixation of scalp veins, scalp vein blood collection is widely used in children, especially infants. Special needs outpatient departments often deal with pediatric patients with unique needs, requiring even higher standards of safety, comfort, and accuracy in blood collection procedures.

[0003] The existing utility model patent with publication number CN213282950U discloses a novel blood collection needle for children, including a blood collection needle handle, a white isolation plug located below the blood collection needle handle, a blood collection needle located below the white isolation plug, an extension tube provided on the outside of the white isolation plug, one end of the extension tube being connected to the white isolation plug, a connecting tube being provided on the other end of the extension tube, an extension tube pressure device being fitted on the wall of the extension tube, one end of the connecting tube being connected to the extension tube, a rubber sleeve being fitted on the other end of the connecting tube, and a negative pressure blood collection tube being provided on the outside of the rubber sleeve.

[0004] The aforementioned patented pediatric lancets are easy to use and can effectively reduce harm to children's bodies. However, their suitability for children's scalps is not ideal. Currently, most scalp vein lancets on the market are of conventional design and do not adequately consider the special needs of children. Children's scalp skin is delicate, with thin and inelastic blood vessels. The length and thickness of conventional lancets may not be suitable for children, easily causing puncture difficulties and increasing the child's pain and fear. Furthermore, existing lancets have relatively simple fixation methods, usually relying solely on simple tape. Children are active, which can easily cause the lancet to shift or fall out, affecting blood collection efficiency and potentially leading to complications such as local hematoma and infection. In addition, conventional lancets lack effective anti-backflow and anti-contamination designs during use. After blood collection, the needle is exposed, posing a risk of accidental puncture to medical personnel and easily causing blood contamination and cross-infection. In specialized outpatient departments, the demands for care and precision medicine for pediatric patients are higher, and the problems exposed during the use of existing blood collection needles are more pronounced. For example, for some children with specific diseases or who require frequent blood draws, the intolerance of conventional blood collection needles can cause them more pain and inconvenience, and also increase the workload of medical staff. Therefore, there is an urgent need for a scalp vein blood collection needle specifically designed for children to solve the problems existing in current technology and meet the blood collection needs of specialized outpatient departments. Utility Model Content

[0005] The purpose of this invention is to provide a scalp vein blood collection needle specifically for children, aiming to improve the problems of existing blood collection needles having a thickness that is not suitable for children and a single fixation method.

[0006] To achieve the above objectives, this utility model provides the following technical solution. A pediatric scalp vein blood collection needle includes a needle body, one end of which has a needle tip with a bevel. The bevel is positioned on a plane with the needle body's axis as a reference plane, and the angle between the bevel and the reference plane is 15-30 degrees. The needle body has a diameter of 0.3-0.6 mm and a length of 10-15 mm. The other end of the needle body has a handle with symmetrical fixing wings on both sides of the bottom of the handle. The fixing wings are arc-shaped and can be attached to the child's scalp. The end of the handle not connected to the needle body has a drainage tube with a flow regulator. The drainage tube also has an anti-backflow mechanism located inside the drainage tube between the flow regulator and the handle.

[0007] Preferably, the bottom surface of the fixed wing is provided with an adhesive layer, and the adhesive layer is covered with release paper.

[0008] Preferably, the adhesive layer is made of medical pressure-sensitive adhesive, and the release paper is silicone paper or polyester release film.

[0009] Preferably, the needle handle is provided with anti-slip texture, which is wavy, serrated or grid-shaped, and the depth of the anti-slip texture is 0.5-1mm.

[0010] Preferably, the end of the needle handle facing the drainage tube is provided with a connecting tube, the connecting tube is inserted into the drainage tube, the top of the needle handle is provided with an operating handle, and the middle of the operating handle is provided with a perforation.

[0011] Preferably, the flow regulator is sleeved on the drainage tube, the flow regulator is hollow inside, and the top surface of the flow regulator is provided with an inclined opening. An adjusting roller is provided inside the top opening of the flow regulator, and the adjusting roller can roll back and forth along the inclined opening.

[0012] Preferably, the anti-backflow mechanism is an elastic valve, which is made of medical silicone or thermoplastic elastomer and closes the infusion tube lumen in its natural state.

[0013] Preferably, the fixed wing is provided with ventilation holes evenly, and the ventilation holes on the fixed wing are circular, elliptical or polygonal, and the diameter of the ventilation holes is 1-3mm.

[0014] Preferably, it also includes a drainage connector, wherein the bottom end of the drainage tube is provided with a connector, the top end of the drainage plug is provided with a insertion tube, the insertion tube is inserted into the connector, and the bottom surface of the drainage connector is provided with an injection tube for insertion into a blood collection container.

[0015] Preferably, it also includes a protective sleeve, one end of which is open, and the end of the needle handle near the needle body is provided with an annular groove. The protective sleeve is provided with multiple limiting protrusions aligned with the annular groove. The protective sleeve is made of transparent plastic.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model features a specially designed pediatric scalp vein blood collection needle. Targeting the characteristics of children's scalp veins, the needle tip angle is designed to be 15-30 degrees, and the needle body diameter and length are 0.3-0.6mm and 10-15mm respectively. This design is more suitable for children's delicate scalp and small blood vessels, reducing the difficulty of puncture and minimizing the child's pain.

[0017] 2. The anti-slip texture and fixing wing design on the needle handle of this utility model improve the grip stability and fixation effect of the blood collection needle, and prevent the blood collection needle from shifting or falling off; the anti-backflow device on the drainage tube can effectively prevent blood backflow, avoid blood contamination and cross-infection, and the flow regulator can conveniently control the blood flow.

[0018] 3. This utility model, through the design of a protective sleeve, can protect the needle in a timely manner after blood collection, preventing medical staff from being accidentally pricked and improving the safety of use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the needle body of this utility model; Figure 3 This is a schematic diagram of the drainage tube of this utility model; Figure 4 This is a schematic diagram of the structure of the drain plug of this utility model; Figure 5 This is a schematic diagram of the structure of the protective sleeve of this utility model.

[0020] In the diagram: 1. Needle body; 11. Needle tip; 12. Needle handle; 13. Connecting cannula; 14. Fixing wing; 15. Release paper; 16. Operating handle; 17. Perforation; 18. Circular groove; 2. Drainage tube; 21. Flow regulator; 22. Adjusting roller; 23. Connector; 3. Drainage plug; 31. Injection tube; 32. Insertion tube; 4. Protective sleeve; 41. Limiting protrusion. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1 Please see Figure 1 This utility model provides a pediatric scalp vein blood collection needle, comprising a needle body 1, with a needle tip 11 at one end. The needle tip 11 has a beveled surface, and the angle between the beveled surface and the plane containing the needle body's axis is 30 degrees. The needle body 1 has a diameter of 0.4 mm and a length of 12 mm. This design is more suitable for the characteristics of pediatric scalp veins, improving the success rate of puncture and reducing the child's pain. The other end of the needle body 1 has a needle handle 12, which facilitates gripping the needle body 1 and thus makes it easier to puncture the blood vessel. The bottom of the needle handle 12 has symmetrical fixing wings 14 on both sides. The fixing wings 14 are arc-shaped and can be adhered to the child's scalp, facilitating the fixation of the needle body 1 and ensuring stable blood collection. The end of the needle handle 12 not connected to the needle body 1 has a drainage tube 2 for facilitating blood drainage. The drainage tube 2 is equipped with a flow regulator 21, which facilitates the adjustment of blood flow. Furthermore, an anti-backflow mechanism is provided inside the drainage tube 2 along the position between the flow regulator 21 and the needle handle 12, which prevents blood inside the drainage tube 2 from flowing back into the blood vessels.

[0023] Please see Figure 2 The bottom surface of the fixing wing 14 has an adhesive layer, which is covered with release paper 15. The adhesive layer is for easy adhesion to the child's scalp, and the release paper 15 is for protection, preventing dust from adhering to the adhesive layer when the fixing wing 14 is not in use. The adhesive layer is made of medical pressure-sensitive adhesive, which is used for easy adhesion to the child's scalp. The release paper 15 is silicone paper or polyester release film. The needle handle 12 has anti-slip textures, which can be wavy, serrated, or grid-shaped, with a depth of 0.8mm, increasing the friction between the needle handle 12 and the scalp. The end of the needle handle 12 facing the drainage tube 2 has a connecting cannula 13, which is inserted into the drainage tube 2 for easy installation, removal, and use. The needle handle 12 is provided with an operating handle 16 at the top, and a perforation 17 is provided in the middle of the operating handle 16. The cooperation between the operating handle 16 and the perforation 17 is to facilitate medical personnel to hold the needle body 1 for puncture.

[0024] Please see Figure 3The flow regulator 21 is fitted onto the drainage tube 2 to facilitate flow regulation of the blood inside the drainage tube 2. The flow regulator 21 is hollow inside, with an inclined opening on its top surface. An adjusting roller 22 is located inside the top opening of the flow regulator 21, and the adjusting roller 22 can roll back and forth along the inclined opening. This structure facilitates flow regulation through roller compression. The anti-backflow mechanism is an elastic valve made of medical-grade silicone or thermoplastic elastomer, which closes the lumen of the infusion tube in its natural state.

[0025] Please see Figure 2 The fixed wing 14 is evenly provided with ventilation holes. The ventilation holes on the fixed wing 14 are circular, elliptical or polygonal, and the diameter of the ventilation holes is 1-3mm. This structure makes it easy for the fixed wing 14 to have good air permeability and ensures the comfort of the scalp contact position.

[0026] Please see Figure 1 , Figure 3 and Figure 4 It also includes a drainage connector. The bottom end of the drainage tube 2 is provided with a connector 23, and the top end of the drainage plug 3 is provided with a insertion tube 32. The insertion tube 32 is inserted into the connector 23, which facilitates flexible assembly and disassembly of the drainage tube 2 and the drainage connector. The bottom surface of the drainage connector is provided with an infusion tube 31 for insertion into a blood collection container.

[0027] Example 2 Please see Figure 1 This invention provides a pediatric scalp vein blood collection needle, comprising a needle body 1, with a needle tip 11 at one end. The needle tip 11 has a beveled surface, and the angle between the beveled surface and the plane containing the needle body's axis is 15 degrees. The needle body 1 has a diameter of 0.6 mm and a length of 30 mm. This design is more suitable for the characteristics of pediatric scalp veins, improving the success rate of puncture and reducing the child's pain. The other end of the needle body 1 has a needle handle 12, which facilitates gripping the needle body 1 and thus makes it easier to puncture the blood vessel. The bottom of the needle handle 12 has symmetrical fixing wings 14 on both sides. The fixing wings 14 are arc-shaped and can be adhered to the child's scalp, facilitating the fixation of the needle body 1 and ensuring stable blood collection. The end of the needle handle 12 not connected to the needle body 1 has a drainage tube 2 for facilitating blood drainage. The drainage tube 2 is equipped with a flow regulator 21, which facilitates the adjustment of blood flow. Furthermore, an anti-backflow mechanism is provided inside the drainage tube 2 along the position between the flow regulator 21 and the needle handle 12, which prevents blood inside the drainage tube 2 from flowing back into the blood vessels.

[0028] Please see Figure 2The bottom surface of the fixing wing 14 has an adhesive layer, which is covered with release paper 15. The adhesive layer is for easy adhesion to the child's scalp, and the release paper 15 is for protection, preventing dust from adhering to the adhesive layer when the fixing wing 14 is not in use. The adhesive layer is made of medical pressure-sensitive adhesive, which is used for easy adhesion to the child's scalp. The release paper 15 is silicone paper or polyester release film. The needle handle 12 has anti-slip textures, which can be wavy, serrated, or grid-shaped, with a depth of 0.5mm, increasing the friction between the needle handle 12 and the scalp. The end of the needle handle 12 facing the drainage tube 2 has a connecting cannula 13, which is inserted into the drainage tube 2 for easy installation, removal, and use. The needle handle 12 is provided with an operating handle 16 at the top, and a perforation 17 is provided in the middle of the operating handle 16. The cooperation between the operating handle 16 and the perforation 17 is to facilitate medical personnel to hold the needle body 1 for puncture.

[0029] Please see Figure 3 The flow regulator 21 is fitted onto the drainage tube 2 to facilitate flow regulation of the blood inside the drainage tube 2. The flow regulator 21 is hollow inside, with an inclined opening on its top surface. An adjusting roller 22 is located inside the top opening of the flow regulator 21, and the adjusting roller 22 can roll back and forth along the inclined opening. This structure facilitates flow regulation through roller compression. The anti-backflow mechanism is an elastic valve made of medical-grade silicone or thermoplastic elastomer, which closes the lumen of the infusion tube in its natural state.

[0030] Please see Figure 2 The fixed wing 14 is evenly provided with ventilation holes. The ventilation holes on the fixed wing 14 are circular, elliptical or polygonal, and the diameter of the ventilation holes is 1-3mm. This structure makes it easy for the fixed wing 14 to have good air permeability and ensures the comfort of the scalp contact position.

[0031] Please see Figure 1 , Figure 3 and Figure 4 It also includes a drainage connector. The bottom end of the drainage tube 2 is provided with a connector 23, and the top end of the drainage plug 3 is provided with a insertion tube 32. The insertion tube 32 is inserted into the connector 23, which facilitates flexible assembly and disassembly of the drainage tube 2 and the drainage connector. The bottom surface of the drainage connector is provided with an infusion tube 31 for insertion into a blood collection container.

[0032] Please see Figure 1 , Figure 2 and Figure 5 It also includes a protective sleeve 4, which has an opening at one end. The end of the needle handle 12 near the needle body 1 has an annular groove 18. The protective sleeve 4 has multiple limiting protrusions 41 aligned with the annular groove 18. The protective sleeve 4 is made of transparent plastic. This structure makes it easy for the protective sleeve 4 to be fitted onto the needle body 1, and the limiting protrusions 41 are engaged with the annular groove 18, ensuring that the protective sleeve 4 is sufficiently stable.

[0033] Working principle: During use, medical staff first remove the release paper 15 from the fixing wing 14, align the needle tip 11 of the blood collection needle with the child's scalp vein. Because the angle of the needle tip 11 and the size of the needle body 1 are suitable for the child's blood vessels, puncture can be performed smoothly. After puncture, the blood collection needle is fixed to the child's scalp by the adhesive layer on the fixing wing 14 and the tape. The arc-shaped fixing wing 14 can better fit the scalp and improve the fixation effect. Then, the flow regulator 21 is turned on to adjust the blood flow according to the actual needs. During the blood collection process, the elastic valve in the anti-backflow mechanism is in the open state to ensure normal blood flow. After the blood collection is completed, the flow regulator 21 is turned off, and the elastic valve closes automatically to prevent blood backflow. Finally, the protective cover 4 is covered and fixed by the cooperation of the limiting protrusion 41 and the annular groove 18 to prevent the needle tip 11 from being exposed and avoid accidental puncture to medical staff.

[0034] In summary, compared with the prior art, the pediatric scalp vein blood collection needle designed in this application, with its needle tip 11 angled at 15-30 degrees to suit the characteristics of children's scalp veins, and needle body 1 diameter and length of 0.3-0.6mm and 10-15mm respectively, is more suitable for children's delicate scalp and small blood vessels, reducing the difficulty of puncture and minimizing the child's pain; the anti-slip texture and fixing wing 14 design on the needle handle 12 improve the grip stability and fixation effect of the blood collection needle, preventing the blood collection needle from shifting or falling off; the anti-backflow device on the drainage tube 2 effectively prevents blood backflow, avoiding blood contamination and cross-infection, while the flow regulator 21 allows for convenient control of blood flow.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pediatric scalp vein blood collection needle, comprising a needle body (1), characterized in that: The needle body (1) has a needle tip (11) at one end, the needle tip (11) has a beveled surface, the plane where the needle body axis is located is the reference plane, the angle between the beveled surface and the reference plane is 15-30 degrees, the needle body (1) has a diameter of 0.3-0.6 mm and a length of 10-15 mm; the needle body (1) has a needle handle (12) at the other end, the needle handle (12) has symmetrical fixed wings (14) on both sides of the bottom, the fixed wings (14) are arc-shaped, and the fixed wings (14) can be attached to the child's scalp; the end of the needle handle (12) that is not connected to the needle body (1) has a drainage tube (2), the drainage tube (2) has a flow regulator (21), and the drainage tube (2) has an anti-backflow mechanism inside the drainage tube (2) along the position between the flow regulator (21) and the needle handle (12).

2. The pediatric scalp vein blood collection needle according to claim 1, characterized in that: The bottom surface of the fixed wing (14) is provided with an adhesive layer, and the adhesive layer is covered with release paper (15).

3. The pediatric scalp vein blood collection needle according to claim 2, characterized in that: The adhesive layer is made of medical pressure-sensitive adhesive, and the release paper (15) is silicone paper or polyester release film.

4. The pediatric scalp vein blood collection needle according to claim 1, characterized in that: The needle handle (12) is provided with anti-slip texture, which is wavy, serrated or grid-shaped, and the depth of the anti-slip texture is 0.5-1mm.

5. A pediatric scalp vein blood collection needle according to claim 4, characterized in that: The needle handle (12) has a connecting tube (13) at one end facing the drainage tube (2). The connecting tube (13) is inserted into the drainage tube (2). The needle handle (12) has an operating handle (16) at the top and a perforation (17) in the middle of the operating handle (16).

6. A pediatric scalp vein blood collection needle according to claim 1, characterized in that: The flow regulator (21) is sleeved on the drainage tube (2). The flow regulator (21) is hollow inside and has an inclined opening on the top surface. An adjusting roller (22) is provided inside the top opening of the flow regulator (21). The adjusting roller (22) can roll back and forth along the inclined opening.

7. A pediatric scalp vein blood collection needle according to claim 1, characterized in that: The anti-backflow mechanism is an elastic valve made of medical silicone or thermoplastic elastomer, which closes the infusion tube lumen in its natural state.

8. A pediatric scalp vein blood collection needle according to claim 3, characterized in that: The fixed wing (14) is provided with ventilation holes evenly. The ventilation holes on the fixed wing (14) are circular, elliptical or polygonal, and the diameter of the ventilation holes is 1-3mm.

9. A pediatric scalp vein blood collection needle according to any one of claims 1-8, characterized in that: It also includes a drainage connector, the bottom end of the drainage tube (2) is provided with a connector (23), the top end of the drainage plug (3) is provided with a insertion tube (32), the insertion tube (32) is inserted into the connector (23), and the bottom surface of the drainage connector is provided with an injection tube (31) for insertion into a blood collection container.

10. A pediatric scalp vein blood collection needle according to any one of claims 1-8, characterized in that: It also includes a protective sleeve (4), one end of which is open, and the needle handle (12) is provided with an annular groove (18) at the end near the needle body (1). The protective sleeve (4) is provided with multiple limiting protrusions (41) aligned with the annular groove (18); the protective sleeve (4) is made of transparent plastic.

Images