CN215986106U - Puncture structure - Google Patents

Abstract

The present invention relates to a puncture structure for use in a blood coagulation analyzer, the puncture structure comprising: a mounting bracket installed in an inner space of the coagulation analyzer; a guide rail installed on an inner surface of a sidewall of the mounting frame and arranged in a vertical direction; a slider slidably provided on the guide rail; the sliding block frame is fixed on the sliding block; the electromagnet is arranged at the top end of the mounting rack; one end of the spring is connected to the first end part of the sliding block frame, and the other end of the spring is connected to the top end of the mounting frame; the pressing block is arranged at the second end part of the sliding block frame and is used for fixing the test tube; the magnetic component is mounted on the position, close to the first end, of the sliding block frame, the position of the magnetic component corresponds to the bottom end of the electromagnet, and the bottom end of the electromagnet can generate magnetism the same as that of the magnetic component to push the sliding block frame to move downwards. The pressing block on the puncture structure can fix the test tube, prevent the test tube from deviating in the puncture process and avoid the puncture needle from lifting the test tube.

Description

Puncture structure

Technical Field

The present invention relates to a medical device, and more particularly, to a puncture structure.

Background

The blood coagulation analyzer is used as a conventional medical detection device for evaluating an antithrombotic drug, can be used for detecting an anticoagulation system and a fibrinolysis system, and can be used for evaluating the level of each blood coagulation factor and researching an inhibitor.

The test tube can shift at the puncture in-process of current coagulometer, in case take place the skew, the motion of pjncture needle can drive the test tube activity, disturbs normal puncture sampling process.

In order to avoid the occurrence of test tube deviation, a reliable puncture structure is urgently needed to ensure the safe operation of the puncture process of the blood coagulation analyzer.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention has been developed to provide a puncture structure that overcomes or at least partially solves the above-mentioned problems.

To achieve the above object, the present invention provides a puncture structure for use in a blood coagulation analyzer, the puncture structure including: a mounting bracket mounted in an inner space of the coagulation analyzer; a guide rail installed on an inner surface of a sidewall of the mounting frame and arranged in a vertical direction; a slider slidably provided on the guide rail; a slider frame fixed to the slider; the electromagnet is arranged at the top end of the mounting rack; a spring, one end of which is connected to the first end of the slider frame, and the other end of which is connected to the top end of the mounting frame; the pressing block is arranged at the second end part of the sliding block frame and is used for fixing the test tube; the slider frame is provided with a first end part, the first end part is provided with a magnetic component, the magnetic component is arranged on the slider frame and close to the first end part, the magnetic component is arranged at a position corresponding to the bottom end of the electromagnet, and the bottom end of the electromagnet can generate magnetism the same as that of the magnetic component so as to push the slider frame to move downwards.

In a preferred embodiment of the present application, the top end of the slider frame is provided with a horizontal first mounting plate on which the magnetic member is mounted, and one end of the spring is connected to the first mounting plate.

In a preferred embodiment of the present application, the bottom end of the slider frame is provided with a horizontal second mounting plate located outside the mounting frame, and the pressing block is mounted to the second mounting plate.

In a preferred embodiment of the present application, a horizontal third mounting plate is provided on the top end of the mounting frame, and the top end of the electromagnet and the other end of the spring are both connected to the third mounting plate.

In a preferred embodiment of the present application, a sensor is provided on a side wall of the mounting frame for sensing the position of the slider frame.

In a preferred embodiment of the present application, the top end of the slider frame is provided with an upwardly protruding locating tab for cooperating with the sensor to sense the position of the slider frame.

In a preferred embodiment of the present application, the sensor is provided with a sensor recess, and the spacer is provided to be capable of passing through the sensor recess.

In a preferred embodiment of the present application, a positioning groove is provided on a lower surface of the pressing block, and the positioning groove is used for fixing the test tube.

In a preferred embodiment of the present application, the upper surface of the pressing block is provided with a positioning guide groove for guiding the puncture needle through the pressing block and fixing the puncture needle.

In a preferred embodiment of the present application, a through hole communicating the positioning groove and the positioning guide groove is provided inside the press block.

The pressing block on the puncture structure can fix the test tube, so that the test tube is prevented from deviating in the puncture process, and the test tube is prevented from being brought up when the puncture needle moves upwards after puncture.

Drawings

FIG. 1 is a schematic structural view of a piercing structure provided by the present invention;

FIG. 2 is an exploded perspective view of FIG. 1;

FIG. 3 is a schematic view of FIG. 1 with the slider frame and the press block omitted;

FIG. 4 is a schematic view of the position of the spacer and sensor;

FIG. 5 is a schematic view of the positions of the press block, the second mounting plate and the mounting locking plate;

FIG. 6 is an exploded perspective view of FIG. 5;

FIG. 7 is a sectional view of the pressure block, which schematically shows the positions of the positioning grooves, the positioning guide grooves and the through-holes;

FIG. 8 is a schematic view of an application scenario when a test tube is not fixed on a pressing block;

FIG. 9 is a schematic view of an application scenario when a test tube is fixed by a pressing block.

Description of reference numerals:

1 mounting rack

2 guide rail

3 sliding block

4 sliding block frame

5 electromagnet

6 spring

7 briquetting

8 sensor

9 test tube

10 puncture needle

101 third mounting plate

102 side wall of the mounting rack

403 first mounting plate

404 second mounting plate

405 spacer

701 positioning groove

702 positioning guide groove

703 through hole

704 mounting lock plate

705 mounting hole

801 sensor groove

802 support the stent.

It is to be understood that the drawings are not to scale, but rather illustrate various features which are presented in a somewhat simplified form to illustrate the basic principles of the utility model. In the drawings of the present invention, like reference numerals designate like or equivalent parts of the utility model.

Detailed Description

Reference will now be made in detail to various embodiments of the utility model, examples of which are illustrated in the accompanying drawings and described below. While the utility model will be described in conjunction with the exemplary embodiments of the utility model, it will be understood that the description is not intended to limit the utility model to those exemplary embodiments. On the contrary, the utility model is intended to cover not only the exemplary embodiments of the utility model, but also various alternatives, modifications, equivalents and other embodiments, which are included within the spirit and scope of the utility model as defined by the appended claims.

Hereinafter, various exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

Referring to fig. 1-3, the present invention relates to a puncture structure for use in a coagulation analyzer, comprising: the device comprises a mounting frame 1, a guide rail 2, a slide block 3, a slide block frame 4, an electromagnet 5, a spring 6 and a pressing block 7; the mounting frame 1 is installed in the inner space of the blood coagulation analyzer; the guide rail 2 is arranged on the inner surface of the side wall of the mounting rack 1 and is distributed along the vertical direction; the slide block 3 is slidably arranged on the guide rail 2; the slide block frame 4 is fixed on the slide block 3; the electromagnet 5 is arranged at the top end of the mounting rack 1; one end 601 of the spring 6 is connected to the first end 401 of the slider frame 4, and the other end 602 is connected to the top end of the mounting frame 1; a press block 7 is arranged at the second end 402 of the slide block frame 4 and used for fixing the test tube 9; a magnetic member (not shown) is mounted on the slider frame 4 at a position 406 near the first end 401, and the position of the magnetic member corresponds to the bottom end of the electromagnet 5, which can generate the same magnetic force as the magnetic member to push the slider frame to move downward.

When the test tube 9 needs to be fixed, the electromagnet 5 is electrified, the bottom end of the electromagnet 5 generates magnetism the same as that of the magnetic part, and mutual repulsion force can be formed between the electromagnet 5 and the magnetic part. The mounting bracket 1 that electro-magnet 5 belonged to is fixed, so electro-magnet 5 is fixed, and mutual repulsion can promote magnetic part downstream, and slider frame 4 and slider 3 together fixed with magnetic part can be along guide rail 2 downstream together, and then drive briquetting 7 downstream in order to realize the fixed to test tube 9, prevent puncture in-process test tube 9's skew, avoid pjncture needle 10 to bring up test tube 9 when upward movement after the puncture.

After the puncture sampling is finished, the electromagnet 5 is powered off, the magnetism of the electromagnet 5 disappears, the mutual repulsion force between the electromagnet 5 and the magnetic part disappears, the sliding block frame 4 is pulled upwards by the tensile force of the spring 6 in the stretching state on the sliding block frame 4, and the pressing block 7 can be separated from the test tube 9 at the moment.

The mounting frame 1 plays the effect of supporting spring 6, electro-magnet 5 and guide rail 2 here, and guide rail 2 lays along vertical direction, can guarantee that the slider frame reciprocates along vertical direction, avoids the briquetting at the in-process off tracking that descends, can't fix test tube 9 accurately.

Further, be provided with first stopper (not shown in the figure) on the slide rail, first stopper is located the top of slider 3 for the position that the restriction slider frame 4 rose prevents that slider frame 4 from rising striking electro-magnet 5.

Further, be provided with the second stopper (not shown in the figure) on the slide rail, the second stopper is located slider 3's below, when briquetting 7 pressed on test tube 9, the upper surface of second stopper is less than slider 3's lower surface, sets up like this and neither influences briquetting 7 fixed to test tube 9, can restrict the position that slider frame 4 descends again, prevents under the condition that does not have test tube 9 that slider frame 4 descends, and the displacement that exceeds spring 6 is too big, and damage spring 6.

Further, one magnetic pole of the magnetic member mounted at a position 406 on the slider frame 4 near the first end 401 is directed upward, the magnetic property generated by the bottom end of the electromagnet 5 is the same as the magnetic property of the upward magnetic pole, and if the N pole of the magnetic member is directed upward, the magnetic property generated by the bottom end of the electromagnet 5 is also the N pole; if the S-pole of the magnetic member is directed upward, the magnetic force generated at the bottom end of the electromagnet 5 is also the S-pole.

Further, the magnetic member may be a permanent magnet, and the type of the magnetic member is not limited thereto, and may be any type of magnetic member in the related art as long as the above function can be achieved.

Further, the top end of the slider frame 4 is provided with a horizontal first mounting plate 403, the magnetic member is mounted on the first mounting plate 403, and one end 601 of the spring 6 is attached to the first mounting plate 403. The first mounting plate 403 is horizontally disposed, and can provide a stable platform for the magnetic component, so as to ensure that the N pole or S pole of the magnetic component is stably directed directly upward.

Further, the magnetic member may be embedded in the upper surface of the first mounting plate 403, may be fixed to the upper surface of the first mounting plate 403 by a screw connection, or may be fixed to the upper surface of the first mounting plate 403 in other forms.

Further, a horizontal second mounting plate 404 is provided at the bottom end of the slider frame 4, the second mounting plate 404 is located outside the mounting frame 1, and the pressing block 7 is mounted on the second mounting plate 404. The second mounting plate 404 is horizontally arranged, and can provide a stable platform for the pressing block 7, so as to facilitate the penetration of the puncture needle 10.

Further, as shown in fig. 5 and 6, pressing block 7 is mounted on second mounting plate 404 by means of mounting locking piece 704.

Illustratively, the pressing block 7, the mounting locking piece 704 and the second mounting plate 404 are provided with corresponding mounting holes 705, the pressing block 7 and the mounting locking piece 704 clamp the second mounting plate 404 in the middle, and after the corresponding mounting holes 705 are aligned, all the mounting holes 705 are penetrated through a threaded connecting piece to fix the pressing block 7, the mounting locking piece 704 and the second mounting plate 404 together. Of course, the second mounting plate 404 and the mounting locking piece 704 may sandwich the pressing block 7, and the mounting holes 705 may be aligned and then fixed by a screw connector.

Further, a horizontal third mounting plate 101 is arranged at the top end of the mounting frame 1, the top end of the electromagnet 5 and the other end 602 of the spring 6 are both connected to the third mounting plate 101, and the third mounting plate 101 plays a role in stably supporting the spring 6 and the electromagnet 5.

Further, a sensor 8 is disposed on the outer side of the side wall 102 of the mounting frame 1, the sensor 8 is used for sensing the position of the slider frame 4, and the sensor 8 transmits the sensed position of the slider frame 4 to the controller of the blood coagulation analyzer.

Further, the sensor 8 is mounted on the outer surface of the side wall of the mounting block 1 through a bracket 802.

Further, as shown in fig. 4, the top end of the slider frame 4 is provided with a positioning tab 405 protruding upward, and the positioning tab 405 is used to cooperate with the sensor 8 to sense the position of the slider frame 4.

Further, a sensor groove 801 is provided on the sensor 8, and the positioning piece 405 is disposed to be capable of passing through the sensor groove 801. Specifically, the positioning plate 405 of the slider frame 4 is positioned in the sensor groove 801 by pulling force of the spring 6 in the standing state of the puncture device, and the puncture device is in the non-working state at the moment, and the controller is prohibited from controlling the puncture needle to puncture; when a puncture function is needed, the electromagnet 5 works to separate the positioning sheet 405 of the sliding block frame 4 from the sensor 8, the pressing block 7 is pressed down, the sensor 8 transmits a position change signal to the relevant controller, and the controller can control the puncture needle 10 to puncture; after the puncture and sample suction are finished, the electromagnet 5 is disabled, the puncture device recovers the standing state by the spring tension, the sensor 8 detects the positioning sheet 405 again, the signal is transmitted to the relevant controller, and the puncture is forbidden.

The sensor 8 in fig. 1-4 is installed outside the side wall 102 of the mounting frame 1, and according to design requirements, the sensor 8 may also be installed inside the side wall 102 of the mounting frame 1, and then the positioning piece 405 on the slider frame 4 is correspondingly adjusted to correspond to the position of the sensor 8.

Further, as shown in fig. 7, the lower surface of the pressing block 7 is provided with a positioning groove 701, and the positioning groove 701 is used for fixing the test tube 9 so as to reduce or avoid the offset of the test tube 9.

Further, as shown in fig. 7, the upper surface of the pressing block 7 is provided with a positioning guide groove 702, and the positioning guide groove 702 is used for guiding the puncture needle 10 to smoothly pass through the pressing block 7 and fixing the puncture needle 10, so that the shaking and the offset of the puncture needle 10 are reduced, and the puncture needle 10 is prevented from lifting up the test tube 9 when moving upwards after puncturing. The positioning guide groove 702 is provided with an inclined surface, before puncturing, the puncture needle 10 moves above the positioning guide groove 702 and then moves downward to pass through the positioning guide groove 702, if the puncture needle 10 is not located right above the positioning guide groove 702 (there is a slight deviation), the head of the puncture needle 10 touches the inclined surface of the positioning guide groove 702, and under the guidance of the inclined surface, the puncture needle 10 passes through the positioning guide groove 702. The puncture needle 10 is provided with a step 1001 matched with the shape of the positioning guide groove 702, and the step 1001 is clamped in the positioning guide groove 702 to realize fixation.

Further, as shown in fig. 7, a through hole 703 communicating the positioning groove 701 and the positioning guide groove 702 is provided inside the pressing block 7, and the puncture needle 10 sequentially passes through the positioning guide groove 702, the through hole 703 and the positioning groove 701 (i.e., passes through from top to bottom) and enters the test tube 9 for sample aspiration.

The use of the piercing structure of the present invention will be further described below.

The piercing structure moves under the control of the associated robotic arm of the coagulation analyzer so that the positioning groove 701 of the pressure block 7 is located directly above the test tube (see fig. 8).

Electromagnet 5 circular telegram, electromagnet 5's bottom produces magnetism, and then produces the mutual repulsion between electromagnet 5 and the magnetic part, and under this mutual repulsion's promotion, the magnetic part drives slider frame 4 and slider 3 and moves down along guide rail 2 together for briquetting 7 is pressed on the test tube 9 that needs the puncture, fixes test tube 9 (refer to and draw figure 9), prevents to puncture in-process skew, also avoids pjncture needle 10 to take test tube 9 when upwards moving after the puncture simultaneously. During puncturing, the puncture needle 10 moves above the positioning guide groove 702 under the control of the relevant mechanical arm, and then the puncture needle 10 moves downwards to pass through the positioning guide groove 702, the through hole 703 and the positioning groove 701 in sequence (i.e. to pass through from top to bottom), and enters the test tube 9 for sample suction.

After the sample is sucked, under the control of the related mechanical arm, the puncture needle 10 rises to be separated from the positioning guide groove 702, then is far away from the pressing block 7, the electromagnet 5 is powered off, the magnetism at the bottom end of the electromagnet 5 disappears, the mutual repulsion force between the electromagnet 5 and the magnetic part disappears, and the spring 6 pulls the sliding block frame 4 to move upwards to return to the original position, so that the pressing block 7 is driven to be separated from the test tube 9.

The sensor 8 senses the position of the slider frame 4 through sensing the positioning piece 405, and when the positioning piece 405 is detected to be separated from the sensor groove 801, the sensor informs a relevant controller to allow the puncture needle to be controlled to perform puncture work.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the utility model to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications thereof. It is intended that the scope of the utility model be defined by the following claims and their equivalents.

Claims (10)

1. A lancing structure for use in a coagulation analyzer, comprising:

a mounting bracket mounted in an inner space of the coagulation analyzer;

a guide rail installed on an inner surface of a sidewall of the mounting frame and arranged in a vertical direction;

a slider slidably provided on the guide rail;

a slider frame fixed to the slider;

the electromagnet is arranged at the top end of the mounting rack;

a spring, one end of which is connected to the first end of the slider frame, and the other end of which is connected to the top end of the mounting frame;

the pressing block is arranged at the second end part of the sliding block frame and is used for fixing the test tube;

the slider frame is provided with a first end part, the first end part is provided with a magnetic component, the magnetic component is arranged on the slider frame and close to the first end part, the magnetic component is arranged at a position corresponding to the bottom end of the electromagnet, and the bottom end of the electromagnet can generate magnetism the same as that of the magnetic component so as to push the slider frame to move downwards.

2. The lancing structure of claim 1, wherein the top end of the slider frame is provided with a horizontal first mounting plate on which the magnetic component is mounted and one end of the spring is connected to the first mounting plate.

3. The lancing structure of claim 1, wherein the bottom end of the slider frame is provided with a horizontal second mounting plate, the second mounting plate being located outside of the mounting frame, and the pressure block is mounted to the second mounting plate.

4. The lancing structure of claim 1, wherein a horizontal third mounting plate is provided on a top end of the mounting bracket, and wherein a top end of the electromagnet and another end of the spring are both connected to the third mounting plate.

5. The lancing structure of claim 1, wherein a sensor is disposed on a side wall of the mounting rack for sensing a position of the slider rack.

6. The lancing structure of claim 5, wherein the top end of the slider frame is provided with an upwardly projecting locating tab for engaging the sensor to sense the position of the slider frame.

7. The lancing structure of claim 6, wherein the sensor has a sensor recess disposed thereon, and the splines are configured to pass through the sensor recess.

8. The lancing structure of claim 1, wherein the lower surface of the pressure block is provided with a positioning groove for securing the test tube.

9. The puncture structure according to claim 8, wherein the upper surface of the pressing block is provided with a positioning guide groove for guiding the puncture needle through the pressing block and fixing the puncture needle.

10. The puncture structure according to claim 9, wherein a through hole communicating the positioning groove and the positioning guide groove is provided in the inside of the pressing piece.

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