Blood sampling device for medical tests
By designing a blood collection device with open grooves, baffles, and fixed units, the problems of fainting at the sight of blood, inconvenient operation, and hygiene have been solved, achieving a safe and stable blood collection process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BINHAI COUNTY PEOPLES HOSPITAL
- Filing Date
- 2025-04-24
- Publication Date
- 2026-07-07
AI Technical Summary
Existing blood collection devices have problems such as fainting during blood collection, inconvenience in operation, difficulty in ensuring hygiene, easy displacement of the needle puncture position, and risk of contamination.
A blood collection device was designed, comprising an open groove, a baffle, a fixing unit, and a clamping assembly. The baffle blocks the view of the person being blood collected, the open groove prevents the fingers from contacting the device, the fixing unit fixes the fingers, and the clamping assembly stabilizes the position of the fingers.
It effectively avoids fainting during blood collection, improves the safety and ease of operation of blood collection, ensures that the finger is fixed and does not shift, reduces the risk of contamination, and improves blood collection efficiency.
Smart Images

Figure CN224461699U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical testing technology. More specifically, this utility model relates to a blood collection device for medical testing. Background Technology
[0002] By detecting various components in the blood, such as blood cells, biochemical indicators, and immune markers, doctors can understand the body's condition, diagnose diseases, assess treatment effectiveness, and monitor disease progression. Blood tests typically require the use of appropriate blood collection devices to collect blood first.
[0003] Fainting during blood collection is a relatively common occurrence. After coming into contact with blood, patients may experience a range of symptoms, including dizziness, nausea, paleness, cold sweats, palpitations, weakness, and even fainting, due to anxiety or fear. To prevent this, methods are typically used to obstruct the patient's view during the blood collection process.
[0004] The utility model patent with announcement number CN212996440U discloses a blood collection device for medical laboratory, including a fixed base. The top of the fixed base has a through hole, and a needle extending into the through hole is movably installed on the top of the fixed base. The top of the fixed base has a collection hole located on the right side of the through hole, which can effectively prevent the person being blood-collected from fainting.
[0005] However, this device has many inconveniences. First, it is not convenient to disinfect the blood collection site inside the device, and the blood collection site can easily come into contact with its inner wall before and after blood collection, making it difficult to ensure its internal hygiene and creating safety hazards. Second, when collecting blood, medical staff can only observe through the top hole, usually requiring them to stand and look down, which is inconvenient and increases labor intensity. Third, people who are afraid of blood are more likely to move their fingers due to fear and pain when their fingers are inserted for blood collection, causing the needle to be misplaced or resulting in long cuts. Utility Model Content
[0006] One object of this invention is to solve the above-mentioned problems and / or defects, and to provide the advantages that will be described later.
[0007] To achieve these objectives and other advantages of this utility model, a blood collection device for medical testing is provided, comprising: a fixed base, wherein the upper end of the fixed base is provided with an open groove for placing a finger to be collected;
[0008] The fixed base is provided with a baffle that is slidably connected to it so as to cover the open groove by adjusting its position;
[0009] The upper side of the fixed base is provided with a storage groove for storing the baffle;
[0010] The baffle is provided with a protrusion on one side along its moving direction, and the receiving groove is provided with a sliding groove that matches the protrusion.
[0011] The fixing base is equipped with a fixing unit for fixing the finger to be collected.
[0012] Preferably, the fixing unit includes: a fan ring with a groove at its center and multiple strip-shaped holes;
[0013] Multiple clamping components that are connected to each slot drive to spatially fix the finger to be collected for blood collection;
[0014] A control component that drives the fan ring to rotate around the groove.
[0015] The strip-shaped holes are arranged along the rotation direction of the fan ring, and each strip-shaped hole extends from the inner side of the fan ring to the outer side.
[0016] The mounting base is provided with a mounting groove that is adapted to the fan ring and allows the fan ring to rotate at a predetermined angle.
[0017] Preferably, the clamping assembly includes: a push rod that is drivenly connected to the strip hole;
[0018] A gripper head that is connected to the push rod drive and makes direct contact with the finger to be blood collected;
[0019] The elastic element connecting the push rod and the clamping head;
[0020] The clamping components are configured in three parts, respectively located at the bottom of the groove and on opposite sides of the groove;
[0021] The groove sidewall has a side hole at the position where it mates with the clamping head, and the side hole is spatially connected to the mounting groove.
[0022] Preferably, the control element is configured with a knob at one end, a gear at the other end, and its middle part is fixed to the rotating shaft of the fixed base;
[0023] The outer side of the fan ring is provided with meshing teeth that are adapted to the gear.
[0024] Preferably, the baffle is fixed to one end of the fan ring.
[0025] Preferably, the mounting base is provided with an insertion hole for placing cotton swabs.
[0026] This utility model has at least the following beneficial effects: by setting a baffle, the view of the person being blood-collected can be effectively blocked to avoid fainting at the sight of blood, while not obstructing the view of medical staff, thus facilitating the blood collection operation; by setting an open groove, the finger to be blood-collected can be placed directly inside, avoiding contact between the puncture point of the finger and the device, preventing contamination of both the device and the finger, and improving the safety of blood collection; by setting a fixing unit to fix the finger to be blood-collected, it effectively prevents the person being blood-collected from moving their finger due to fear or pain, ensuring the smooth progress of blood collection and improving the safety of blood collection.
[0027] Other advantages, objectives and features of this invention will be apparent in part from the description which follows, and in part from the understanding of those skilled in the art through study and practice of this invention. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of a blood collection device for medical testing in one embodiment of the present invention;
[0029] Figure 2 This is a schematic diagram of the structure of the fixing unit of the blood collection device for medical testing in one embodiment of the present invention;
[0030] Figure 3 This is a schematic diagram of the structure of the fixing body of the blood collection device for medical testing in one embodiment of the present invention;
[0031] Figure 4 This is a schematic diagram of the installation structure of the fixing unit of the blood collection device for medical testing in one embodiment of this utility model.
[0032] The markings in the diagram are: 1. Fixing base, 11. Fixing body, 111. Side hole, 112. Mounting groove, 113. Circular groove, 114. Circular hole, 12. Fixing cover, 2. Open groove, 3. Baffle, 4. Insertion hole, 5. Fixing unit, 51. Fan ring, 511. Strip hole, 512. Meshing tooth, 52. Push rod, 53. Elastic element, 54. Clamping head, 55. Control element, 551. Knob, 552. Rotating shaft, 553. Gear. Detailed Implementation
[0033] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.
[0034] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not list the presence or addition of one or more other elements or combinations thereof.
[0035] It should be noted that in the description of this utility model, the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0037] Furthermore, in this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0038] Example 1
[0039] A blood collection device for medical testing, the structure of which is as follows: Figure 1-4 As shown, it includes: a fixing base 1, wherein the upper end of the fixing base 1 is provided with an open groove 2 for placing the finger to be blood collected;
[0040] The fixed base 1 is provided with a baffle 3 that is slidably connected to it so as to cover the open groove 2 by adjusting its position;
[0041] The upper side of the fixed base 1 is provided with a storage groove for storing the baffle 3;
[0042] The baffle 3 has a protrusion on one side along its moving direction, and the storage groove has a sliding groove that matches the protrusion.
[0043] The fixing base 1 is provided with a fixing unit 5 for fixing the finger to be collected.
[0044] In practical applications, the sidewall of the groove is configured as an arc shape to fit the finger to be circulated; the side of the baffle 3 opposite to the groove where the finger to be circulated is configured as an arc shape, and the two do not interfere with each other. The convex strip is configured as an arc-shaped structure with the center of the open groove 2 as the center, which facilitates guiding it to rotate along a specific arc shape and avoids interference with the finger to be circulated.
[0045] Working principle: During operation, the finger to be blood-collected is first placed in the open groove 2, and the puncture point of the finger is placed on the side of the baffle 3 away from the person being blood-collected. Then, the baffle 3 is moved from one side of the groove to the other side of the groove to block the person being blood-collected's line of sight. Then, the second knuckle of the finger to be blood-collected is fixed by the fixing unit 5, and then the blood collection is carried out. Finally, the baffle 3 is moved to its return storage slot, and the finger to be blood-collected is moved towards the opening of the open groove 2 and away from the open groove 2.
[0046] By setting up the baffle 3, the patient's vision can be effectively blocked to avoid fainting during blood collection, while not obstructing the vision of medical staff, facilitating the blood collection operation. By setting up the open groove 2, the finger to be blooded can be placed directly inside, avoiding contact between the puncture point of the finger and the device, preventing contamination of both the device and the finger, and improving the safety of blood collection. The fixing unit 5 fixes the finger to be blooded, effectively preventing the patient from moving their finger due to fear or pain, ensuring the smooth progress of blood collection and improving the safety of blood collection. While fixing the finger to be blooded, the fixing unit 5 also squeezes the finger, which facilitates the flow of blood out of the puncture site during blood collection, facilitating the smooth progress of blood collection, and greatly reducing the risk of blood flowing onto the device and contaminating it due to direct contact with the sides of the puncture site.
[0047] Example 2
[0048] This second embodiment is a preferred embodiment of the present invention, and its specific structure is as follows: Figure 1-4 As shown, based on embodiment 1, the following improvement is disclosed: the fixing unit 5 includes: a fan ring 51 with a groove as the center and multiple strip holes 511;
[0049] Multiple clamping components are connected to each slot 511 to spatially fix the finger to be collected.
[0050] A control component 55 that drives the fan ring 51 to rotate around the groove;
[0051] The strip-shaped holes 511 are arranged along the rotation direction of the fan ring 51, and each strip-shaped hole 511 extends from the inner side of the fan ring 51 to the outer side.
[0052] The fixed base 1 is provided with a mounting groove 112 that is adapted to the fan ring 51 and allows the fan ring 51 to rotate at a predetermined angle.
[0053] The clamping assembly includes a push rod 52 that is pulsatorically connected to the strip hole 511;
[0054] A clamping head 54 is connected to the push rod 52 and makes direct contact with the finger to be blood collected;
[0055] The elastic element 53 connects the push rod 52 and the clamping head 54;
[0056] The clamping components are configured in three parts, respectively located at the bottom of the groove and on opposite sides of the groove;
[0057] The groove sidewall is provided with a side hole 111 for the clamping head 54 to extend out at the position where it mates with the clamping head 54, and the side hole 111 is spatially connected to the mounting groove 112.
[0058] In practical applications, the clamping head 54, push rod 52, elastic element 53, side hole 111, and strip hole 511 are configured in three groups. The three clamping heads 54 are located at the bottom of the groove and on opposite sides of the groove, respectively. The three clamping heads 54 are arranged around the center of the arc-shaped groove to improve the stability and fixing effect of the fixed position. The strip hole 511 is configured in an arc shape. The contact surface between the clamping head 54 and the finger to be blood-collected is provided with a flexible layer, which can enhance the friction effect, enhance stability, and improve the comfort of fixing the finger to be blood-collected. The elastic element 53 is configured as a spring. By setting the elastic element 53, it can adapt to different sizes of the finger to be blood-collected and facilitate the application of an appropriate clamping force, avoiding excessive force applied by the clamping head 54 to the finger to be blood-collected, which would cause discomfort. The fixing base 1 consists of a fixing body 11 and a fixing cover 12. The fixing body 11 and the fixing cover 12 are detachably connected by bolts or the like. The side of the fixing body 11 that mates with the fixing cover 12 is provided with a side hole 111 for accommodating clamping components and a mounting groove 112 for accommodating the fan ring 51. The side of the fixing cover 12 that mates with the fixing body 11 is provided with a storage groove for storing the baffle 3. During installation, first install each clamping component into the side hole 111, then install the fan ring 51 into the mounting groove 112, connect the push rod 52 to the strip hole 511, finally place the baffle 3 in the storage groove, close the fixing cover 12, and fix the fixing body 11 and the fixing cover 12 with bolts to complete the assembly of the device.
[0059] Working principle: The fixing unit 5 can fix the position of the finger to be collected before blood collection, so as to prevent its movement from affecting the blood collection work. When fixing the finger to be collected, the fan ring 51 is rotated by the control component 55. The push rod 52 is pushed to move through the strip hole 511 on the fan ring 51. Through the guiding effect of the side hole 111, the pushing force of the push rod 52 is transmitted to the clamping head 54 through the elastic component 53, so that it moves along the side hole 111 into the groove, so that the clamping head 54 contacts the finger to be collected and presses it to fix it. Rotating the fan ring 51 in the opposite direction can make the clamping head 54 move in the opposite direction to separate from the finger to be collected and fix it in contact, so that the finger to be collected can be easily removed after blood collection.
[0060] Example 3
[0061] This third embodiment is a preferred embodiment of the present invention, and its specific structure is as follows: Figure 2 As shown, based on embodiment 2, the following improvement is disclosed: the control member 55 is configured to have a knob 551 at one end and a gear 553 at the other end, and its middle part is fixed to the rotating shaft 552 of the fixed base 1.
[0062] The outer side of the fan ring 51 is provided with meshing teeth 512 that are adapted to the gear 553.
[0063] In practical applications, a circular groove 113 communicating with the mounting groove 112 that accommodates the fan ring 51 is provided to accommodate the gear 553 that is connected to the fan ring 51 in a transmission. The rotating shaft 552 is provided with a circular hole 114 that mates with the fixed base 1 at the position where it is adapted to the fixed base 1, and there is a certain friction when the two rotate relative to each other, so as to ensure that the knob 551 will not slip when it is not being turned, thereby improving the stability of the device.
[0064] Working principle: Knob 551 is located on the side operated by medical staff. By rotating knob 551, gear 553 rotates synchronously, causing fan ring 51 to rotate around the groove at a certain angle, thereby fixing and releasing the finger to be drawn. Operation is convenient as it eliminates the need for manual maintenance of the finger, facilitating blood collection by medical staff.
[0065] Example 4
[0066] This embodiment 4 is a preferred embodiment of the present invention, and it discloses the following improvement based on embodiment 2: the baffle 3 is fixed to one end of the fan ring 51.
[0067] Working principle: The baffle 3 is fixed to one end of the fan ring 51 and rotates with it so that it extends to the other side of the groove when the fixing unit 5 is fixed, effectively blocking the line of sight of the person being blood-collected; when the fixing unit 5 is released, it moves to the storage groove, making it easy for the finger to be blood-collected to be removed from the open groove 2.
[0068] Example 5
[0069] This fifth embodiment is a preferred embodiment of the present invention, and its specific structure is as follows: Figure 3-4 As shown, based on embodiment 1, the following improvement is disclosed: the fixing base 1 is provided with an insertion hole 4 for placing cotton swabs.
[0070] Working principle: The insertion hole 4 for placing cotton swabs allows medical staff to temporarily place cotton swabs, especially when multiple cotton swabs are needed for backup. Holding them by hand is inconvenient, and cotton swabs are usually not convenient to place directly on the work surface. Insertion hole 4 provides a temporary place for cotton swabs, improving work efficiency.
[0071] The above solutions are merely illustrative examples of preferred embodiments, but are not limited thereto. When implementing this invention, appropriate substitutions and / or modifications can be made according to the user's needs.
[0072] The number of devices and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this utility model will be readily apparent to those skilled in the art.
[0073] Although embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for this utility model. Other modifications can be readily implemented by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and examples shown and described herein.
Claims
1. A blood collection device for medical testing, comprising: A fixing base, characterized in that the upper end of the fixing base is provided with an open groove for placing the finger to be blood-collected; The fixed base is provided with a baffle that is slidably connected to it so as to cover the open groove by adjusting its position; The upper side of the fixed base is provided with a storage groove for storing the baffle; The baffle is provided with a protrusion on one side along its moving direction, and the receiving groove is provided with a sliding groove that matches the protrusion. The fixing base is equipped with a fixing unit for fixing the finger to be collected.
2. The blood collection device for medical testing as described in claim 1, characterized in that, The fixing unit includes: a fan ring with a groove at its center and multiple strip holes; Multiple clamping components that are connected to each slot drive to spatially fix the finger to be collected for blood collection; A control component that drives the fan ring to rotate around the groove. The strip-shaped holes are arranged along the rotation direction of the fan ring, and each strip-shaped hole extends from the inner side of the fan ring to the outer side. The mounting base is provided with a mounting groove that is adapted to the fan ring and allows the fan ring to rotate at a predetermined angle.
3. The blood collection device for medical testing as described in claim 2, characterized in that, The clamping assembly includes: a push rod that is connected to the slot drive; A gripper head that is connected to the push rod drive and makes direct contact with the finger to be blood collected; The elastic element connecting the push rod and the clamping head; The clamping components are configured in three parts, respectively located at the bottom of the groove and on opposite sides of the groove; The groove sidewall has a side hole at the position where it mates with the clamping head, and the side hole is spatially connected to the mounting groove.
4. The blood collection device for medical testing as described in claim 2, characterized in that, The control element is configured with a knob at one end, a gear at the other end, and its middle part is fixed to the rotating shaft of the fixed base; The outer side of the fan ring is provided with meshing teeth that are adapted to the gear.
5. The blood collection device for medical testing as described in claim 2, characterized in that, The baffle is fixed to one end of the fan ring.
6. The blood collection device for medical testing as described in claim 1, characterized in that, The mounting base is provided with a hole for placing cotton swabs.