Hose blood anticoagulation heat sealing device and blood sampling equipment

Abstract

The utility model provides a hose blood anticoagulation heat seal device and blood sampling equipment, including peristaltic mechanism, heat seal mechanism and drive mechanism, peristaltic mechanism is used for the alternate extrusion and release of external hose to make the blood in external blood storage bag peristaltic to hose, heat seal mechanism is used for the extrusion heat seal of hose, and drive mechanism is used for the drive mechanism. The driving mechanism is connected with the heat sealing mechanism and drives the heat sealing mechanism to move along the line of the hose so as to conduct heat sealing on the hose to form at least two heat sealing points. The peristaltic mechanism can enable blood in the blood storage bag to peristaltic to the hose, anticoagulation of the blood braids is achieved, the hose can be thermally synthesized into multiple sections of the blood braids only through one heat sealing mechanism, the number of the blood braids can be customized, the length of each section of the blood braids can also be customized, and the equipment is high in flexibility and low in cost.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a soft tube blood anticoagulation heat sealing device and a blood sampling device. Background Art

[0002] During the blood collection process, the blood is stored in a blood bag for transfusion, and the blood bag's hose is divided into several closed blood braids for various tests and cross-matching. However, since only the blood bag contains anticoagulants and the hose does not, the blood braids are prone to blood coagulation during storage, making it impossible to use the blood braids for various tests and cross-matching. At this time, the blood bag can only be sampled after the sealing is destroyed. If the blood cannot be matched with the wounded or sick, it will lead to a serious waste of medical resources. Utility Model Content

[0003] The purpose of the present application is to overcome the deficiencies of the prior art and to provide a blood anticoagulation heat-sealing device for a hose to solve the problem that the blood braid has no anticoagulant and that multiple heat-sealing mechanisms are required to heat-seal the hose to form multiple heat-sealing points.

[0004] The embodiments of the present application solve the above-mentioned problems through the following technical solutions.

[0005] The present embodiment provides a hose blood anticoagulation heat-sealing device, comprising a peristaltic mechanism, a heat-sealing mechanism and a driving mechanism. The peristaltic mechanism is used to alternately squeeze and release the external hose to peristaltically move the blood in the external blood storage bag to the hose. The heat-sealing mechanism is used to squeeze and heat-seal the hose. The driving mechanism is connected to the heat-sealing mechanism. The driving mechanism drives the heat-sealing mechanism to move along the line of the hose to heat-seal the hose to form at least two heat-sealing points.

[0006] In some embodiments, the peristaltic mechanism includes a shell for the hose to pass through, a tube pressing assembly disposed inside the shell, and a motor driving the tube pressing assembly. The motor drives the tube pressing assembly to alternately squeeze and release the hose in a radial direction of the hose.

[0007] In some embodiments, the tube pressing assembly includes an extrusion plate, a turntable and a plurality of extrusion rollers. The extrusion plate is arranged at the edge of the turntable. The plurality of extrusion rollers are circumferentially spaced and rotatably installed on the turntable. The rotating shaft of the motor is connected to the turntable driving drive to drive the turntable to rotate. Driven by the turntable, the plurality of extrusion rollers take turns to press against the extrusion plate to squeeze the hose and move away from the extrusion plate to release the hose.

[0008] In some embodiments, a mounting frame is included, and a driving mechanism includes a screw motor and a linear guide pair installed on the mounting frame. The heat sealing mechanism is fixedly connected to the screw-in nut of the screw motor, and the screw-in nut is also fixedly connected to the sliding block of the linear guide pair. The heat sealing mechanism performs linear reciprocating motion along the linear guide pair under the drive of the screw motor.

[0009] In some embodiments, the driving mechanism is a cylinder, a hydraulic cylinder, or a linear driving structure formed by a rack and pinion.

[0010] In some embodiments, it includes a mounting frame and several rollers and belts mounted on the mounting frame. Two rollers are arranged at both ends of the movement path of the heat-sealing mechanism. The rollers are used to support the belt and rotate as the belt moves. The heat-sealing mechanism includes a heat-sealing caliper head, and the heat-sealing caliper head penetrates through the belt covering the movement path of the heat-sealing mechanism and drives the belt to move.

[0011] In some embodiments, it includes a shielding cover. The shielding cover avoids the heat-sealing mechanism and covers the movement path of the heat-sealing mechanism. The shielding cover is connected to the driving mechanism and moves synchronously with the heat-sealing mechanism under the drive of the driving mechanism.

[0012] In some embodiments, the heat-sealing mechanism can be used to extrude and simultaneously heat-seal a hose, or can also be used to extrude a non-heat-sealed hose.

[0013] In some embodiments, it includes a hose clamping mechanism. The hose clamping mechanism is arranged along the path of the hose, and the heat-sealing mechanism moves along the path of the hose between the hose clamping mechanism and the peristaltic mechanism. The hose clamping mechanism is used to clamp the hose.

[0014] In some embodiments, it includes at least one hose guiding mechanism, and the hose guiding mechanism is used to guide the placement of the hose.

[0015] This embodiment also provides a blood collection device for collecting blood and transporting it to a blood storage bag and a bypass blood bag, including the hose blood anticoagulation and heat-sealing device of any one of the above embodiments.

[0016] Advantages of this application: The peristaltic mechanism of this application can peristalsis the blood in the blood storage bag into the hose before the heat-sealing mechanism heat-seals the hose. The heat-sealing mechanism can move under the drive of the driving mechanism to heat-seal the hose to form at least two heat-sealing points. This application avoids the blood in the blood braid from coagulating during storage, ensures that samples can be taken from the blood braid and cross-matched before using the blood in the blood storage bag, avoids the sealing of the blood bag being damaged when taking samples from the blood bag, and thus prevents serious waste of medical resources in the case where the blood cannot be matched with the wounded or patients. This application can heat-seal the hose into multiple blood braids with only one heat-sealing mechanism. The number of blood braids can be customized, and the length of each blood braid can also be customized. The device has high flexibility and low cost. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0018] Figure 1 It is a usage state diagram of an embodiment of the hose blood anticoagulation heat sealing device of the present application;

[0019] Figure 2 For Figure 1 It is a schematic structural diagram of the hose blood anticoagulation heat sealing device in

[0020] Figure 3 For Figure 2 It is a schematic structural diagram of another perspective of the hose blood anticoagulation heat sealing device in

[0021] Figure 4 For Figure 2 It is a schematic structural diagram of the peristaltic mechanism in the hose blood anticoagulation heat sealing device in

[0022] Figure 5 For Figure 4 It is a schematic structural diagram of the peristaltic mechanism without a housing in

[0023] Figure 6 It is a usage state diagram of an embodiment of the blood collection device of the present application. Detailed implementation manners

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, terms such as "installation", "provided in", and "connection" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] Refer to Figures 1 to 3As shown, the blood bag assembly 10 includes a blood collection needle 11, a blood storage bag 12, a bypass blood bag 13, a three-way connector 14 and a hose 15 that connect the three. The bypass blood bag 13 collects blood to supply a sample tube, and the blood storage bag 12 collects blood for transfusion. The hose blood anticoagulation heat sealing device 20 in this embodiment includes a peristaltic mechanism 21, a heat sealing mechanism 22 and a driving mechanism 23. The peristaltic mechanism 21 alternately squeezes and releases the hose 15 (i.e., a peristaltic action) before the heat sealing mechanism 22 seals the hose 15. During peristalsis, the hose 15 between the bypass blood bag 13 and the blood storage bag 12 is conductive. The original blood without anticoagulant stored in the hose 15 is peristaltically moved into the bypass blood bag 13, and the blood with anticoagulant in the blood storage bag 12 is peristaltically moved into the hose 15. At this time, the blood in the hose 15 contains anticoagulant. The driving mechanism 23 is connected to the heat sealing mechanism 22, and the driving mechanism 23 drives the heat sealing mechanism 22 to move along the line of the hose 15 to seal the hose 15 to form at least two heat seal points. In this embodiment, one heat sealing mechanism 22 can be used to seal the hose 15 into multiple heat seal points, that is, to form multiple blood braids. The number of blood braids can be customized, and the length of each blood braid can also be customized. The device has high flexibility. Moreover, only one heat sealing mechanism 22 is used in this embodiment, and multiple heat sealing mechanisms 22 are not required to seal multiple heat seal points, reducing the cost of the device.

[0026] In addition, the heat sealing mechanism 22 can be used to squeeze and simultaneously seal the hose 15, or can be used to only squeeze the hose 15 without sealing it. After the heat sealing work of the hose 15 is completed, the hose 15 is sealed to form 4 heat seal points: a, b, c, d (as Figure 1As shown in the figure, four heat-sealing points form three blood braids. The peristaltic mechanism 21 is used to tightly squeeze the hose 15, that is, the hose 15 between the blood storage bag 12 and the heat-sealing point d. Then, the heat-sealing mechanism 22 moves to between the heat-sealing point c and the heat-sealing point d. While tightly squeezing the hose 15 between the heat-sealing point c and the heat-sealing point d, it moves in the direction away from the peristaltic mechanism 21, and the hose 15 can be torn off at the heat-sealing point d, avoiding manually tearing off the hose 15 to separate the blood braid from the blood storage bag 12. Further, the illustrated embodiment further includes a hose clamping mechanism 27. The hose clamping mechanism 27 can be a clip with two clamping arms, or a mechanism that can clamp the tee joint 14 to prevent the hose 15 from shifting. The hose clamping mechanism 27 is arranged along the line of the hose 15, and the heat-sealing mechanism 22 moves along the line of the hose 15 between the hose clamping mechanism 27 and the peristaltic mechanism 21. The hose clamping mechanism 27 is used to clamp the hose 15. After the heat-sealing work of the hose 15 is completed, the hose clamping mechanism 27 is used to clamp the hose 15, that is, the hose 15 between the blood collection needle 11 and the heat-sealing point a. Then, the heat-sealing mechanism 22 moves to between the heat-sealing point a and the heat-sealing point b. While tightly squeezing the hose 15 between the heat-sealing point a and the heat-sealing point b, it moves in the direction away from the hose clamping mechanism 27, and the hose 15 can be torn off at the heat-sealing point a, avoiding manually tearing off the hose 15 to separate the blood braid from the blood collection needle 11 and the bypass blood bag 13. This embodiment realizes automatically tearing off the hose 15 to separate the blood braid from the blood collection needle 11, the blood storage bag 12, and the bypass blood bag 13.

[0027] Reference Figure 4 and Figure 5 As shown in the figure, the peristaltic mechanism 21 in this embodiment includes a housing 211 through which the hose 15 passes, a tube pressing assembly 212 arranged inside the housing 211, and a motor 213 driving the tube pressing assembly 212. The motor 213 drives the tube pressing assembly 212 to perform an alternating squeezing and releasing movement on the hose 15 in the radial direction of the hose 15. The tube pressing assembly 212 includes a pressing plate 2121, a turntable 2122, and a plurality of pressing rollers 2123. The pressing plate 2121 is arranged at the edge of the turntable 2122. The plurality of pressing rollers 2123 are circumferentially spaced along the turntable 2122 and rotatably installed on the turntable 2122. The rotating shaft of the motor 213 is drivingly connected to the turntable 2122 to drive the turntable 2122 to rotate. The plurality of pressing rollers 2123 are driven by the turntable 2122 to alternately press against the pressing plate 2121 to squeeze the hose 15 and move away from the pressing plate 2121 to release the hose 15. In the illustrated embodiment, the turntable 2122 includes an upper turntable 21221 and a lower turntable 21222. The pressing rollers 2123 are installed between the upper turntable 21221 and the lower turntable 21222. The upper turntable 21221 has a clearance notch for the hose 15 to be placed between the pressing plate 2121 and the pressing rollers 2123. The pressing roller 2123 is composed of a roller and a column. The column is fixedly installed on the turntable 2122, and the roller is sleeved on the column and can rotate under the action of an external force.

[0028] In this embodiment, the heat-sealing mechanism 22 includes a heat-sealing caliper head, an electromagnetic heater, and a driving member. The heat-sealing caliper head includes a fixed heat-sealing member and a sliding heat-sealing member that are oppositely arranged. A heat-sealing position for placing the catheter is formed between the fixed heat-sealing member and the sliding heat-sealing member. The electromagnetic heater is connected to the sliding heat-sealing member and drives the sliding heat-sealing member to approach the fixed heat-sealing member and generate a high-frequency electromagnetic field when powered on. The driving member is connected to the sliding heat-sealing member to drive the sliding heat-sealing member to approach / away from the fixed heat-sealing member.

[0029] Reference Figure 3 As shown in the figure, this embodiment further includes a mounting bracket 24. The driving mechanism 23 includes a lead screw motor 231 and a linear guide pair 232 mounted on the mounting bracket 24. The heat-sealing mechanism 22 is fixedly connected to the advancing nut 2311 of the lead screw motor 231 through a connecting member. The advancing nut 2311 is also fixedly connected to the sliding block 2321 of the linear guide pair 232 through a connecting member. The advancing nut 2311 makes a linear motion under the action of the linear guide pair 232. When the rotation direction of the lead screw motor 231 is changed, the rotation direction of the lead screw 2312 also changes simultaneously, and the advancing nut 2311 will perform a linear motion in the opposite direction. Therefore, the heat-sealing mechanism 22 can make a linear reciprocating motion along the linear guide pair 232 under the drive of the lead screw motor 231. In other embodiments (not shown in the figure), the driving mechanism 23 can also be a cylinder, a hydraulic cylinder, or a linear driving structure formed by a gear and a rack.

[0030] This illustrated embodiment further includes several rollers 25 and a belt 26 mounted on the mounting bracket 24. Two of the rollers 25 are arranged at both ends of the moving line of the heat-sealing mechanism 22. The rollers 25 are used to support the belt 26 and rotate as the belt 26 moves. The heat-sealing caliper head of the heat-sealing mechanism 22 penetrates and covers the belt 26 on the moving line of the heat-sealing mechanism 22 and drives the belt 26 to move. The belt 26 can serve as a shielding mechanism to protect the internal components and wires of the device and beautify the appearance of the device. In other embodiments (not shown in the figure), the hose blood anticoagulation heat-sealing device 20 includes a shielding cover. The shielding cover avoids the heat-sealing mechanism 22 and covers the moving line of the heat-sealing mechanism 22. The shielding cover is connected to the driving mechanism 23 and moves synchronously with the heat-sealing mechanism 22 under the drive of the driving mechanism 23.

[0031] This illustrated embodiment further includes at least one hose guiding mechanism 28. The hose guiding mechanism 28 includes two retaining arms for receiving the hose 15. The hose guiding mechanism 28 is used to guide the placement of the hose 15.

[0032] Reference Figure 6 As shown in the figure, the blood collection device of this embodiment is used to collect blood and transport it to the blood storage bag 12 and the bypass blood bag 13, and includes the hose blood anticoagulation heat-sealing device 20 of any one of the above embodiments.

[0033] The above are only the preferred embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structural transformation made under the concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included within the patent protection scope of the present utility model.

Claims

1. A hose blood anticoagulation heat sealing device, characterized in that It includes a peristaltic mechanism, a heat-sealing mechanism, and a driving mechanism. The peristaltic mechanism is used to alternately squeeze and release an external hose to peristaltically move the blood in an external blood storage bag into the hose. The heat-sealing mechanism is used to squeeze and heat-seal the hose. The driving mechanism is connected to the heat-sealing mechanism, and the driving mechanism drives the heat-sealing mechanism to move along the line of the hose to heat-seal the hose to form at least two heat-sealing points.

2. The hose blood anticoagulation heat sealing device according to claim 1, characterized in that, The peristaltic mechanism includes a housing through which the hose passes, a tube pressing assembly disposed inside the housing, and a motor for driving the tube pressing assembly. The motor drives the tube pressing assembly to alternately squeeze and release the hose in the radial direction of the hose.

3. The hose blood anticoagulation heat sealing device according to claim 2, characterized in that, The tube pressing assembly includes a pressing plate, a turntable, and a plurality of pressing rollers. The pressing plate is disposed at the edge of the turntable. The plurality of pressing rollers are circumferentially spaced along the turntable and rotatably mounted on the turntable. The rotating shaft of the motor is drivingly connected to the turntable to drive the turntable to rotate. The plurality of pressing rollers are driven by the turntable to alternately abut against the pressing plate to squeeze the hose and move away from the pressing plate to release the hose.

4. The hose blood anticoagulation heat sealing device according to claim 1, characterized in that, It includes a mounting bracket. The driving mechanism includes a lead screw motor and a linear guide pair mounted on the mounting bracket. The heat-sealing mechanism is fixedly connected to the advancing nut of the lead screw motor. The advancing nut is also fixedly connected to the sliding block of the linear guide pair. The heat-sealing mechanism makes a linear reciprocating motion along the linear guide pair under the drive of the lead screw motor.

5. The hose blood anticoagulation heat sealing device according to claim 1, characterized in that, It includes a mounting bracket and several rollers and a belt mounted on the mounting bracket. Two of the rollers are disposed at both ends of the movement line of the heat-sealing mechanism. The rollers are used to support the belt and rotate with the movement of the belt. The heat-sealing mechanism includes a heat-sealing caliper head. The heat-sealing caliper head penetrates and covers the belt on the movement line of the heat-sealing mechanism and drives the belt to move.

6. The hose blood anticoagulation heat sealing device according to claim 1, characterized in that, It includes a shielding cover. The shielding cover avoids the heat-sealing mechanism and covers the movement line of the heat-sealing mechanism. The shielding cover is connected to the driving mechanism and moves synchronously with the heat-sealing mechanism under the drive of the driving mechanism.

7. The hose blood anticoagulation heat sealing device according to claim 1, characterized in that, The heat-sealing mechanism can be used to squeeze and simultaneously heat-seal the hose, or can also be used to squeeze but not heat-seal the hose.

8. The hose blood anticoagulation heat sealing device according to claim 7, characterized in that, It includes a hose clamping mechanism. The hose clamping mechanism is disposed along the line of the hose. The heat-sealing mechanism moves along the line of the hose between the hose clamping mechanism and the peristaltic mechanism. The hose clamping mechanism is used to clamp the hose.

9. The hose blood anticoagulation heat sealing device according to claim 1, characterized in that, It includes at least one hose guiding mechanism. The hose guiding mechanism is used to guide the placement of the hose.

10. A blood collection device for collecting blood and delivering it to a blood storage bag and a bypass blood bag, characterized in that, It includes the hose blood anticoagulation heat-sealing device according to any one of claims 1 to 9.

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