Jig convenient for puncture correction

Abstract

The utility model relates to a jig convenient for puncture correction. The jig comprises a hook mechanism, a blood bag clamp, a consumable storage box and a needle handle fixing seat, a blood bag puncture pipeline correcting device is arranged above the blood bag clamp, and when the blood bag clamp fixes the blood bag, the blood bag puncture pipeline is positioned together with the blood bag clamp, so that the center line of the blood bag puncture pipeline is kept vertical and does not deviate; aiming at an inactivation consumable pipeline of the inactivation consumable, a needle head automatic correction device is arranged, so that the inactivation consumable pipeline is subjected to downward tensioning force applied by the needle head automatic correction device in the needle lifting puncture process, and a puncture needle handle generates a force towards the center by taking a contact point of the puncture needle handle and a puncture clamping jaw as a fulcrum; therefore, the shaken puncture needle handle is corrected to the puncture center line, and correction of the puncture needle head is achieved. The jig can adapt to blood bags with different capacities and inactivation consumables of different manufacturers, and the success rate of puncture is greatly increased.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid transfer, in particular to a jig which is convenient for puncture correction. Background Art

[0002] The statements in this section only provide background information related to the present disclosure, and these statements may constitute prior art. In the process of implementing the present utility model, the inventor found that there are at least the following problems in the prior art.

[0003] The blood collected by the blood station needs to be treated with virus inactivation before use or storage. For example, for plasma, the methylene blue chemical virus inactivation method is often used, that is, the collected plasma is transferred to the matching virus inactivation consumables with methylene blue and inactivated by light. The transfer process requires the blood bag to be connected to the inactivation consumables first. There are currently three ways to connect: the first is a sterile pipe connection machine. This technology is monopolized by foreign countries. The equipment is charged on a per-use basis, which is expensive and has high production costs; the second is to manually remove the needle cap and puncture in the clean room, but the operator is easily stabbed by the puncture needle, and the environmental requirements are very high; the third is a sterile transfer device, which removes the consumable needle cap in the sterile compartment inside the device, and then punctures it into the blood bag to achieve connection and transfer. Compared with the first two methods, the price of sterile transfer equipment is cheap and can well avoid personal injury.

[0004] The above-mentioned aseptic transfer equipment is designed and developed by our company (for the specific scheme, see the patent application number 202211187472.3, entitled "A blood aseptic transfer device"). The aseptic transfer equipment includes a cabinet, on which a shield is provided, and a door panel is provided on the shield. When the door panel is closed, the space enclosed by the shield and the cabinet is a sealed chamber; a turntable that is driven to rotate is provided in the space, and a liquid storage bag carrying mechanism is provided on the outer ring surface of the turntable, and the component blood bag and the transfer consumable bag are assembled on the mechanism; the cabinet is provided with a blood transfusion socket cutting mechanism for cutting off the lower end of the blood transfusion socket with a diaphragm in the component blood bag to expose the diaphragm, a cap removal mechanism for removing the puncture needle cap of the transfer consumable bag, a needle lifting and puncturing mechanism for piercing the puncture needle of the transfer consumable bag into the diaphragm in the component blood bag, and a welding and sealing mechanism for welding and sealing the catheter connected to the puncture needle in the transfer consumable bag, etc. The above-mentioned multiple mechanisms are arranged in sequence along the rotation direction of the turntable, so as to realize the aseptic transfer of blood between the component blood bag and the transfer consumable bag.

[0005] Among them, the needle lifting and puncturing mechanism used to insert the puncture needle of the transfer consumable bag into the diaphragm of the component blood bag is not universal because the user only uses one type of inactivated consumable at the beginning of the design. As users introduce consumables from different manufacturers, the special nature of the equipment makes it impossible for customers to use sterile transfer equipment to complete the connection work of inactivated consumables from multiple manufacturers to blood bags, and the puncture failure rate is high.

[0006] Since the above equipment has been tried in blood stations, the applicant has found through long-term observation that puncture failure is mainly reflected in the following aspects:

[0007] 1. Before the puncture needle punctures the blood bag puncture pipeline, the needle is not aligned with the center point of the lower end of the pipeline, which can easily lead to leakage of the bag;

[0008] 2. Although the puncture needle can be aligned with the center point of the lower end of the blood bag puncture line and penetrate, it is easy to penetrate the blood bag puncture line when traveling in the blood bag puncture line (especially in deeper places), thus causing puncture failure. Summary of the invention

[0009] In view of the above problems, the purpose of the present invention is to solve some of the problems in the prior art, or at least alleviate these problems.

[0010] A jig for puncture correction, comprising a hook mechanism, a blood bag clamp, a consumables storage box and a needle handle fixing seat; the consumables storage box is used to store inactivated consumables; the hook mechanism and the blood bag clamp are used to position the blood bag and align its blood bag puncture pipeline with the puncture needle of the inactivated consumables; the needle handle fixing seat is used to position the puncture needle handle; and also includes an automatic needle correction device; the automatic needle correction device is adapted to the inactivation consumable pipeline of the inactivation consumables, and is used to apply a downward tensioning force to the inactivation consumable pipeline during the needle lifting puncture process.

[0011] The fixture for puncture correction also includes a blood bag puncture pipeline correction device; the blood bag puncture pipeline correction device is located above the blood bag clamp and is adapted to the blood bag puncture pipeline to keep the center line of the blood bag puncture pipeline in a vertical state.

[0012] Optionally, the blood bag puncture pipeline correction device is a fixed block with a groove; the groove of the fixed block is adapted to the blood bag puncture pipeline to keep its center line in a vertical state.

[0013] Furthermore, the fixing block is connected to the movable plate of the blood bag clamp; the fixing plate of the blood bag clamp extends upward to form a plate body or a groove body that is matched with the groove of the fixing block.

[0014] Optionally, the automatic needle correction device is a damping block arranged below the needle handle fixing seat; the damping block is provided with a damping hole, which is concentric with the catheter through hole of the needle handle fixing seat; the damping hole is a semi-open strip hole, and its width is smaller than the outer diameter of the inactivated consumables pipeline.

[0015] Optionally, the automatic needle correction device is a pipeline correction spring arranged below the needle handle fixing seat; both ends of the pipeline correction spring are fixed to the lower end of the needle handle fixing seat, and the middle part forms a semicircular trumpet mouth concentric with the catheter through hole of the needle handle fixing seat, and its diameter is smaller than the outer diameter of the inactivation consumable pipeline; the trumpet mouth is elastic.

[0016] Optionally, the automatic needle correction device is a movable clamping block arranged below the needle handle fixing seat; the clamping block is provided with a notch adapted to the needle handle fixing seat, and the notch can form an extrusion force on the inactivation consumable pipeline by moving the clamping block.

[0017] Optionally, the automatic needle correction device is a clamping block arranged below the needle handle fixing seat; the clamping block is provided with a bend connected to the through groove of the needle handle fixing seat; the cross-section of the bend is semi-open, with a small opening and a large interior.

[0018] Optionally, the automatic needle correction device is a clamping block disposed below the needle handle fixing seat; at least two correction columns are disposed on the surface of the clamping block, and the correction columns can bend the inactivation consumable pipeline passing through it.

[0019] Optionally, the automatic needle correction device is a pipeline clamp and a slide rail assembly disposed below the needle handle fixing seat; the slide rail assembly is used to control the pipeline clamp to clamp the inactivated consumable pipeline to apply a clamping force thereto.

[0020] The utility model has the following beneficial effects:

[0021] The present application adopts an automatic needle correction device to generate a downward tensioning force on the inactivated consumables pipeline when the needle is lifted for puncture, so that the tilted and shaking puncture needle can be corrected to the center, ensuring that the puncture position is always on the puncture center line, solving the problem of needle shaking and tilting during puncture; a blood bag puncture pipeline correction device is adopted to move the root of the tilted blood vessel puncture pipeline toward the center to keep the center line from shifting, solving the problem of the crooked blood bag puncture pipeline; the automatic needle correction device and the blood bag puncture pipeline correction device are coordinated to ultimately solve the problem of puncture failure in the blood sterile transfer device during the needle lifting puncture stage, and can be adapted to blood bags of different capacities and inactivated consumables from different manufacturers, greatly improving the success rate of puncture. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above structure of the present invention can be further illustrated by the non-limiting embodiments given in the following drawings.

[0023] Figure 1 This is a schematic diagram of a puncture needle that is tilted;

[0024] Figure 2It is a schematic diagram of an existing blood bag puncture line being clamped;

[0025] Figure 3 It is a connection diagram of the utility model using a damping block;

[0026] Figure 4 It is a cross-sectional view of the utility model;

[0027] Figure 5 This is a comparison of the before and after pictures of the inactivation consumables pipeline entering the damping hole;

[0028] Figure 6 is a plan view of the damping block;

[0029] Figure 7 It is a schematic diagram of the utility model using a correction spring;

[0030] Figure 8 It is a schematic diagram of the utility model using a correction spring when puncturing to a half-stroke position;

[0031] Fig. 9 is a schematic diagram of one embodiment of a clamping block;

[0032] Fig.10 is a schematic diagram of another embodiment of a clamping block;

[0033] Fig.11 is a schematic diagram of a third embodiment of a clamping block;

[0034] Fig.12 is a schematic diagram of a fourth embodiment of a clamping block;

[0035] Fig.13 It is a schematic diagram of the utility model using pipeline clamps when puncturing to a half-stroke position.

[0036] Among them: 1-puncture needle; 2-fixing block; 3-blood bag clamp; 4-opening and closing slide rail; 5-puncture needle handle; 6-damping block; 7-blood bag puncture pipeline; 8-blood bag; 9-puncture clamp; 10-inactivation consumables; 11-needle handle fixing seat; 12-front and rear moving slide rail; 13-up and down moving slide rail; 14-support point; 15-inactivation consumables pipeline; 16-damping hole; 17-bearing plate; 18-pipeline correction spring; 19-clamping block; 20-first screw; 21-second screw; 22-vertical strip hole; 23-lateral notch; 24-pipeline clamp; 25-slide rail assembly; 26-bend; 27-correction column. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with the accompanying drawings. The embodiments of the present invention are only used to illustrate the present invention rather than to limit the present invention. Without departing from the technical concept of the present invention, various substitutions and changes can be made based on common technical knowledge and customary means in the field, which should all be included in the scope of the present invention.

[0038] After an in-depth study of the circumstances of puncture failure, the applicant found that the failure of the puncture operation was mainly caused by the following two factors.

[0039] First, due to the differences in the size and thickness of the puncture needle handles 5 of the inactivation consumables of different manufacturers, the puncture clamp 9 is only suitable for a specific needle handle and cannot clamp the needle handles of all manufacturers, so that the puncture needle 1 will shake during the puncture process. Figure 1 If the puncture needle 1 held by the puncture clamp 9 is in a skewed or shaking state, there is a possibility that the needle cannot be aligned with the center point of the lower end of the puncture pipeline 7 before puncturing the blood bag, so that the puncture failure is easy to occur;

[0040] Secondly, after the blood bag 8 is installed (first hung on the hook mechanism, and then a part of the guide tube of the blood bag 8 is clamped by the blood bag clamp 3 to complete the installation), it will swell into a sphere due to gravity, causing the center line of the blood bag puncture pipeline 7 that needs to be punctured between the liquid outlet of the blood bag 8 and the blood bag clamp 3 to deviate, such as Figure 2 As shown, the offset of bags of different capacities is also different, so that the puncture needle 1 cannot be aligned with the center line when traveling in the blood bag puncture pipeline 7. This is why the puncture needle 1 is aligned with the center point of the blood bag puncture pipeline 7 and penetrates, but it is easy to penetrate the pipeline and the bag at a deeper place, resulting in puncture failure.

[0041] In addition, because the incoming blood bags are mixed, if the consumables from newly added manufacturers are sorted out without using the equipment for capping and puncturing, it will not only generate extra work but also reduce the use value of the equipment.

[0042] Based on the above analysis of the causes of puncture failure, the applicant designed the following solution.

[0043] like Figure 3 As shown, a fixture for puncture correction includes a hook mechanism, a blood bag clamp 3, a consumable storage box and a needle handle fixing seat 11; the consumable storage box is used to store the inactivated consumable 10; the hook mechanism and the blood bag clamp 3 are used to position the blood bag 8 and align its blood bag puncture pipeline 7 with the puncture needle 1 of the inactivated consumable 10; the needle handle fixing seat 11 is used to position the puncture needle handle 5; and also includes an automatic needle correction device; the automatic needle correction device is adapted to the inactivated consumable pipeline 15 of the inactivated consumable 10, and is used to apply a downward tensioning force to the inactivated consumable pipeline 15 during the needle lifting puncture process.

[0044] The fixture referred to in this patent is the liquid storage bag carrying mechanism in the blood aseptic transfer device, wherein the hook mechanism, the blood bag clamp 3, the consumables storage box and the needle handle fixing seat 11 can be directly arranged on the turntable body of the blood aseptic transfer device, or arranged on the turntable body through the carrying plate 17.

[0045] Due to the difference in diameter of the puncture needle handle 5 of different manufacturers, the needle handle is conical in shape, and the corresponding puncture jaw 9 is funnel-shaped. The puncture needle handle 5 with a smaller or larger diameter will shake but will not slip when clamped by the puncture jaw 9. When the puncture jaw 9 clamps the puncture needle handle 5 and moves upward, the automatic needle correction device can be used to apply a downward tensioning force to the inactivated consumables pipeline 15, so that the puncture needle handle 5 uses the supporting point 14 of the puncture jaw 9 as a fulcrum to generate a force toward the center, thereby correcting the shaking and crooked puncture needle handle 5 to the vertical puncture center line, so as to realize the correction of the puncture needle 1 and solve the problem that the puncture needle 1 cannot be aligned with the center point of the lower end of the pipeline before puncturing the blood bag puncture pipeline 7.

[0046] At the same time, in order to avoid the problem of deviation of the center line of the blood bag puncture pipeline 7 caused by the expansion of the blood bag 8, as shown in FIG. Figure 3 As shown in FIG4 , the fixture for puncture correction also includes a blood bag puncture pipeline correction device; the blood bag puncture pipeline correction device is located above the blood bag clamp 3 and is adapted to the blood bag puncture pipeline 7 to keep the center line of the blood bag puncture pipeline 7 in a vertical state. The blood bag puncture pipeline correction device is used to position the blood bag puncture pipeline 7, so that the center line of the blood bag puncture pipeline 7 does not deviate, and even if the puncture needle 1 punctures to a deeper position, the pipeline or bag body will not be pierced, further improving the success rate of puncture.

[0047] Optionally, the blood bag puncture pipeline correction device is a fixing block 2 with a groove, such as Figure 3 The groove of the fixing block 2 is adapted to the blood bag puncture line 7 to position the blood bag puncture line 7 so that it does not deviate, so that its center line remains vertical, such as Figure 4 For example, the fixed block 2 is connected to the movable plate of the blood bag clamp 3. When the movable plate of the blood bag clamp 3 is buckled with the fixed plate to clamp the blood bag puncture pipeline 7 of the blood bag 8, the groove of the fixed block 2 also positions the blood bag puncture pipeline 7 between the blood bag 8 and the blood bag clamp 3, so that the center line of the entire blood bag puncture pipeline 7 remains vertical and not skewed, thereby avoiding puncture failure. The fixed plate of the blood bag clamp 3 extends upward to form a plate body or a groove body that is compatible with the groove of the fixed block 2, as shown in FIG. Figure 4As shown, the groove of the fixing block 2 cooperates with the groove of the fixing block 2 to enhance the positioning effect of the groove on the blood bag puncture pipeline 7. Since the groove of the fixing block 2 is only needed to position the blood bag puncture pipeline 7 to a certain extent so that it does not deviate (or deflect greatly), it can be applied to blood bags 8 of different models.

[0048] Of course, other existing technologies can also be used to position the blood bag puncture pipeline 7 between the blood bag 8 and the blood bag clamp 3, such as setting blocks with reset springs on both sides of the blood bag puncture pipeline 7, and using the blocks to support the blood bag puncture pipeline 7 so that its center line remains vertical, which all fall within the scope of protection of this patent.

[0049] The automatic needle correction device can be adapted to the inactivation consumables pipeline 15 in a variety of ways, so that the puncture needle handle 5 is subjected to a downward tensioning force through the inactivation consumables pipeline 15 when the puncture needle handle 5 is moved upward by puncture.

[0050] like Figure 4 As shown in Figures 5 or 6, the automatic needle correction device is a damping block 6 disposed below the needle handle fixing seat 11; the damping block 6 is provided with a damping hole 16, which is concentric with the catheter through hole of the needle handle fixing seat 11; the damping hole 16 is a semi-open strip hole, and its width is smaller than the outer diameter of the inactivated consumables pipeline 15. Figure 5 As shown, while the puncture needle handle 5 of the inactivated consumable 10 is positioned on the needle handle fixing seat 11, the inactivated consumable pipeline 15 can be installed together through the damping hole 16. After the pipeline is installed, because the width of the strip hole is smaller than the outer diameter of the pipeline, the pipeline cross section is compressed into the same strip shape as the damping hole 16 under the action of the damping hole 16, thereby forming a rated damping friction force, so that when the puncture needle handle 5 is pulled upward, a downward tension force is generated on it, so that the puncture needle handle 5 remains in a vertical state.

[0051] Of course, the damping block 6 can also be arranged above or below the catheter through hole of the needle handle fixing seat 11. Even more, the pipeline through hole of the needle handle fixing seat 11 can be directly designed into the shape of the damping hole 16. The shape of the damping hole 16 can be adjusted according to the size of the required damping friction force.

[0052] You can also Figure 7As shown, the automatic needle correction device is a pipeline correction spring 18 arranged below the needle handle fixing seat 11; the two ends of the pipeline correction spring 18 are fixedly arranged at the lower end of the needle handle fixing seat 11, and the middle part forms a semicircular trumpet concentric with the catheter through hole of the needle handle fixing seat 11, and the semicircular diameter is smaller than the outer diameter of the inactivation consumable pipeline 15; the trumpet is elastic. The pipeline correction spring 18 can be installed on the needle handle fixing seat 11 by screws, and the semicircular trumpet is formed in the middle by squeezing the spring at both ends, and the semicircular position is concentric with the semicircle of the needle handle fixing seat 11, but the diameter is smaller. When the inactivation consumable pipeline 15 is installed in its semicircle and moves upward, the pipeline correction spring 18 has a squeezing force on the inactivation consumable pipeline 15 to generate a damping force for the pipeline to slide in the spring, thereby generating a downward tensioning force. The damping force is preferably between 15-20N. If it is greater than 20N, there is a risk of tearing the inactivated consumables pipeline 15 off the puncture needle handle 5. If it is less than 15N, the correction force on the puncture needle 1 is small, which may cause the needle to be not corrected in place. The trumpet-shaped opening produced by squeezing the springs at both ends has a certain elasticity, which makes it more convenient to install and remove the pipeline. The structure is simple, easy to process, and low in cost.

[0053] The pipeline correction spring 18 can also be connected to the bearing plate 17 or the turntable body through a pin shaft, and is arranged below the needle handle fixing seat 11. Or it can be arranged above the needle handle fixing seat 11, and can also be integrated with the needle handle fixing seat 11 like the damping hole 16.

[0054] The automatic needle correction device is a movable clamping block 19 arranged below the needle handle fixing seat 11; the clamping block 19 is provided with a notch adapted to the needle handle fixing seat 11, and the notch can form an extrusion force on the inactivation consumable pipeline 15 by moving the clamping block 19.

[0055] like Fig. 9 As shown, one end of the clamping block 19 is connected to the needle handle fixing seat 11 through a first screw 20, and can rotate around the first screw 20. The other end is provided with a semicircular notch, and the notch can be adapted to the second screw 21 fixed to the needle handle fixing seat 11 by rotating the clamping block 19, so as to achieve opening and closing, so that the clamping block 19 is opened when installing and removing the inactivated consumable pipeline 15, and closed after the pipeline is installed. A semicircular notch is also provided in the middle of the clamping block 19. After the clamping block 19 is closed, a vertical strip hole 22 is formed with the needle handle fixing seat 11, which forms a certain squeezing force on the inactivated consumable pipeline 15, thereby generating a rated damping friction force when the inactivated consumable pipeline 15 moves upward.

[0056] The semicircular notch adapted to the second screw 21 may also be in other shapes.

[0057] You can also Fig.10As shown, both sides of the clamping block 19 are provided with strip holes, which cooperate with the first screw 20 and the second screw 21 installed on the needle handle fixing seat 11, so that the inactivated consumable pipeline 15 can slide left and right when installed and removed, so as to open and close the transverse notch 23 in the middle of the clamping block 19. The transverse notch 23 of the clamping block 19 is adapted to the needle handle fixing seat 11, and its semicircle is concentric with the pipeline through hole of the needle handle fixing seat 11, and its width is smaller than the outer diameter of the inactivated consumable pipeline 15, so that after the clamping block 19 is moved to the left, the inactivated consumable pipeline 15 is squeezed, so that it generates a damping force when it moves upward, and finally generates a downward tensioning force on the puncture needle handle 5 to correct the puncture needle 1.

[0058] The clamping block 19 may also be immovable. Fig.11 As shown, the automatic needle correction device is a clamping block 19 arranged below the needle handle fixing seat 11; the clamping block 19 is provided with a bend 26 connected to the through groove of the needle handle fixing seat 11; the cross section of the bend 26 is semi-open, with a small opening and a large interior, which can facilitate the installation of the inactivated consumable pipeline 15 and the pipeline will not slide out of the bend 26 when sliding in the bend. Due to the existence of the bend 26, the inactivated consumable pipeline 15 will generate a certain damping force when sliding in the bend, and the damping force can be between 15-20N. When the puncture clamp 9 clamps the puncture needle handle 5 and moves upward, the damping force of the bend 26 of the clamping block 19 on the inactivated consumable pipeline 15 will generate a correction force on the puncture needle handle 5 through the inactivated consumable pipeline 15, so that the puncture needle 1 remains in a vertical state and returns to the puncture center line.

[0059] Alternatively, the needle automatic correction device is a clamping block 19 disposed below the needle handle fixing seat 11; the clamping block 19 is provided with at least two correction posts 27 on its surface, and the correction posts 27 can bend the inactivated consumables pipeline 15 passing therethrough. Fig.12 As shown, three correction columns 27 are provided on the surface of the clamping block 19. The inactivated consumables pipeline 15 is bent into a curved tube shape when passing through, and a certain sliding damping force is formed when moving upward, thereby applying a downward tensioning force (i.e., correction force) to the inactivated consumables pipeline 15 to correct the puncture needle handle 1.

[0060] The position and connection mode of the clamping block 19 can be adjusted, such as by fixing it to the bearing plate 17. The bend 26, the correction column 27 and the notch thereon can also be designed according to the required damping force.

[0061] You can also Fig.13As shown, the automatic needle correction device is a pipeline clamp 24 and a slide rail assembly 25 arranged below the needle handle fixing seat 11; the slide rail assembly 25 is used to control the pipeline clamp 24 to clamp the inactivated consumable pipeline 15 to apply a clamping force thereto. Under the action of the forward and backward movement and opening and closing of the slide rail assembly 25, the pipeline clamp 24 generates a certain clamping force on the inactivated consumable pipeline 15 but does not clamp it to death, so that the inactivated consumable pipeline 15 moves under the clamping of the pipeline clamp 24 to generate a damping force. The damping force is more suitable between 15-20N. When the puncture clamp 9 clamps the puncture needle handle 5 and moves upward, the damping force of the pipeline clamp 24 on the inactivated consumable pipeline 15 will generate a corrected downward tensioning force on the puncture needle handle 5, so that the puncture needle 1 returns to the puncture center line.

[0062] The above-mentioned slide rail assembly 25 can be separately arranged on the cabinet of the blood aseptic transfer device, connected to the control system, and the pipeline clamping jaw 24 is controlled to clamp the inactivated consumable pipeline 15 while the puncture clamping jaw 9 clamps the puncture needle handle 5. After the puncture clamping jaw 9 releases the needle handle or punctures the blood bag puncture pipeline 7, the pipeline clamping jaw 24 is controlled to release the inactivated consumable pipeline 15. The slide rail assembly 25 can also be arranged at other positions as needed.

[0063] Taking damping block 6 as an example, its working process is as follows:

[0064] The needle handle fixing seat 11 is installed on the rotating disk of the equipment body and rotates with the rotating disk.

[0065] The puncture needle handle 5 of the inactivation consumable 10 is installed on the needle handle fixing seat 11, and rotates together with the needle handle fixing seat 11 to form a rotary assembly line process.

[0066] The fixing block 2 is fixed on the blood bag clamp 3. After the blood bag 8 is hung on the hook mechanism, the blood bag clamp 3 fixes the blood bag 8 on the turntable of the equipment body. At the same time, the fixing block 2 moves the blood bag puncture pipeline 7 of the blood bag 8 toward the center to keep the pipeline always located at the puncture center position.

[0067] When it is transferred to the puncture station, the puncture jaws 9 move forward to both sides of the puncture needle handle 5 under the action of the forward and backward moving slide rails 12; the puncture jaws 9 close under the action of the opening and closing slide rails 4 to clamp the puncture needle handle 5, and move upward under the action of the up and down moving slide rails 13 to puncture the blood bag 8. During the upward movement of the puncture jaws 9, the puncture needle handle 5 pulls the inactivated consumables pipeline 15 to slide in the damping hole 16 of the damping block 6. The rated friction force generated by the damping hole 16 and the inactivated consumables pipeline 15 causes the puncture needle handle 5 to generate a certain downward tensioning force, thereby correcting the shaking and tilted puncture needle 1 to the center position to ensure that the puncture position is always on the puncture center line.

[0068] The working process of automatic needle correction devices of other structures is similar.

[0069] The present application adopts an automatic needle correction device and a blood bag puncture pipeline correction device to solve the problems of shaking and skewing of the puncture needle 1 and center line deviation of the blood bag puncture pipeline 7. It can adapt to blood bags 8 of different capacities and inactivated consumables 10 from different manufacturers, greatly improving the success rate of puncture.

[0070] The fixed connection not specifically mentioned above may be a connection method such as riveting, welding, bolt connection, etc., and the movable connection may be a connection method such as hinged connection.

Claims

1. A fixture for puncture correction, comprising a hook mechanism, a blood bag clamp (3), a consumables storage box and a needle handle fixing seat (11); the consumables storage box is used to store inactivated consumables (10); the hook mechanism and the blood bag clamp (3) are used to position the blood bag (8) and align the blood bag puncture pipeline (7) with the puncture needle (1) of the inactivated consumables (10); the needle handle fixing seat (11) is used to position the puncture needle handle (5); characterized in that, It also includes an automatic needle correction device; the automatic needle correction device is adapted to the inactivation consumable pipeline (15) of the inactivation consumable (10), and is used to apply a downward tensioning force to the inactivation consumable pipeline (15) during the needle lifting and puncture process.

2. The jig for puncture correction according to claim 1, characterized in that: It also includes a blood bag puncture pipeline correction device; the blood bag puncture pipeline correction device is located above the blood bag clamp (3) and is compatible with the blood bag puncture pipeline (7) to keep the center line of the blood bag puncture pipeline (7) in a vertical state.

3. The jig for puncture correction according to claim 2, characterized in that: The blood bag puncture pipeline correction device is a fixing block (2) with a groove; the groove of the fixing block (2) is adapted to the blood bag puncture pipeline (7) so that the center line thereof remains in a vertical state.

4. The jig for puncture correction according to claim 3, characterized in that: The fixed block (2) is connected to the movable plate of the blood bag clamp (3); the fixed plate of the blood bag clamp (3) extends upward to form a plate body or a groove body that is compatible with the groove of the fixed block (2).

5. The jig for facilitating puncture correction according to claim 1, 2, 3 or 4, characterized in that: The automatic needle correction device is a damping block (6) arranged below the needle handle fixing seat (11); the damping block (6) is provided with a damping hole (16) which is concentric with the catheter through hole of the needle handle fixing seat (11); the damping hole (16) is a semi-open strip hole, the width of which is smaller than the outer diameter of the inactivated consumable pipeline (15).

6. The jig for facilitating puncture correction according to claim 1, 2, 3 or 4, characterized in that: The automatic needle correction device is a pipeline correction spring (18) arranged below the needle handle fixing seat (11); the two ends of the pipeline correction spring (18) are fixed to the lower end of the needle handle fixing seat (11), and the middle part forms a semicircular trumpet mouth concentric with the catheter through hole of the needle handle fixing seat (11), and the diameter of the trumpet mouth is smaller than the outer diameter of the inactivated consumable pipeline (15); the trumpet mouth is elastic.

7. The jig for facilitating puncture correction according to claim 1, 2, 3 or 4, characterized in that: The automatic needle correction device is a movable clamping block (19) arranged below the needle handle fixing seat (11); the clamping block (19) is provided with a notch adapted to the needle handle fixing seat (11), and the notch can form a squeezing force on the inactivated consumable pipeline (15) by moving the clamping block (19).

8. The jig for facilitating puncture correction according to claim 1, 2, 3 or 4, characterized in that: The automatic needle correction device is a clamping block (19) arranged below the needle handle fixing seat (11); the clamping block (19) is provided with a bend (26) connected to the through groove of the needle handle fixing seat (11); the cross section of the bend (26) is semi-open, with a small opening and a large interior.

9. The jig for facilitating puncture correction according to claim 1, 2, 3 or 4, characterized in that: The automatic needle correction device is a clamping block (19) arranged below the needle handle fixing seat (11); at least two correction columns (27) are arranged on the surface of the clamping block (19), and the correction columns (27) can bend the inactivated consumable pipeline (15) passing through it.

10. The jig for facilitating puncture correction according to claim 1, 2, 3 or 4, characterized in that: The automatic needle correction device comprises a pipeline clamp (24) and a slide rail assembly (25) arranged below the needle handle fixing seat (11); the slide rail assembly (25) is used to control the pipeline clamp (24) to clamp the inactivated consumable pipeline (15) to apply a clamping force thereto.

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