Semi-automatic aspiration cell biopsy device

Abstract

The present invention discloses a semi-automatic cell biopsy aspiration device, wherein a reciprocating mechanism is arranged in a housing, a syringe barrel holder is arranged on the reciprocating mechanism, a push-pull electromagnet connected to the reciprocating mechanism is arranged in the housing, a battery, an electromagnetic coil and a controller are also arranged in the housing, the controller is used to control the power on and off of the push-pull electromagnet and the electromagnetic coil, the electromagnetic coil is magnetically connected to a magnetic suction component, and the magnetic suction component is connected to the piston rod of the syringe. The semi-automatic cell biopsy aspiration device of the present invention fixes the syringe by the syringe holder, then uses the push-pull electromagnet to push the syringe for puncture, and then uses the magnetic force generated by the electromagnetic coil being energized to drive the piston rod to realize the cell aspiration function, and the working frequency, puncture depth and aspiration amount can be adjusted as needed, and the syringe only needs to be replaced manually for repeated work, thereby realizing efficient and standardized cell extraction work.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and in particular to a semi-automatic aspiration cell biopsy device. Background Art

[0002] In the current field of medical examination, fine needle aspiration biopsy is often used to extract cells from the lesion site for laboratory diagnosis in the diagnosis of tumors, masses and other diseases. Fine needle aspiration biopsy is a puncture operation in which the physician uses a puncture needle or a 5ml syringe to puncture and extract the cell specimen. However, this puncture sampling method relies on the physician's personal technical accumulation, which is difficult for inexperienced physicians to operate. In addition, it is impossible to determine the sampling parameters in advance for different sampling needs, and it is impossible to achieve standardized puncture sampling. At the same time, the puncture efficiency of this puncture method is also low.

[0003] Therefore, there is an urgent need in the art for a cell biopsy device that is simple to operate and can achieve standardized puncture sampling. Summary of the invention

[0004] The main purpose of the present invention is to provide a semi-automatic aspiration cell biopsy device, which solves the problems of the current manual puncture that is difficult to master and cannot be operated in a standardized manner.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A semi-automatic aspiration cell biopsy device comprises a shell, a reciprocating motion mechanism is arranged at the bottom of the front end of the shell, a syringe barrel holder is arranged on the reciprocating motion mechanism, the syringe barrel holder is used to hold the syringe barrel, a through push-pull electromagnet is arranged in the shell, the through push-pull electromagnet is connected to the reciprocating motion mechanism, the through push-pull electromagnet is used to drive the reciprocating motion mechanism to reciprocate along the puncture direction, a battery, an electromagnetic coil and a controller are also arranged in the shell, the battery is used to supply power to the controller, the electromagnetic coil and the through push-pull electromagnet, the controller is electrically connected to the through push-pull electromagnet through a control switch, the controller is also electrically connected to the electromagnetic coil through a control switch, the controller is used to control the through push-pull electromagnet and the electromagnetic coil to be energized and deenergized, the electromagnetic coil is magnetically connected to a magnetic attraction component, and the magnetic attraction component is connected to the piston rod of the syringe.

[0007] Furthermore, the reciprocating motion mechanism includes a slide rail arranged at the bottom of the front end of the shell.

[0008] Furthermore, the reciprocating motion mechanism also includes a ball disposed on the slide rail.

[0009] Furthermore, the syringe barrel holder has a clamping groove adapted to the shape of the syringe barrel, and the clamping groove is connected to a syringe handle clamping groove corresponding to the syringe barrel handle.

[0010] Furthermore, the push-pull electromagnet comprises a push-pull electromagnet reciprocating shaft and a spring sleeved on the push-pull electromagnet reciprocating shaft, and one end of the push-pull electromagnet reciprocating shaft away from the spring is connected to the reciprocating motion mechanism.

[0011] Furthermore, it also includes a reciprocating shaft amplitude control baffle, and the reciprocating shaft amplitude control baffle is used to adjust the stroke of the push-pull electromagnet reciprocating shaft.

[0012] Furthermore, a reciprocating amplitude display bar is provided on the shell, and the reciprocating amplitude display bar is used to display the travel range of the push-pull electromagnet reciprocating shaft.

[0013] Furthermore, the magnetic attraction component includes a magnetic attraction sheet, the magnetic attraction sheet is connected to a piston rod hook, and the piston rod hook is connected to the piston rod of the syringe.

[0014] Furthermore, the piston rod hook is rotatably disposed on the magnetic sheet.

[0015] Furthermore, a return spring is arranged in the shell, and the return spring is connected to the magnetic attraction sheet.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the semi-automatic cell aspiration biopsy device of the present invention fixes the syringe through the syringe holder, and then uses the push-pull electromagnet to push the syringe for puncture, and then uses the magnetic force generated by the electromagnetic coil being energized to drive the piston rod to achieve the cell aspiration function, and the working frequency, puncture depth and aspiration volume can be adjusted as needed. Repeated work only requires manual replacement of the syringe, thereby achieving efficient and standardized cell extraction work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the semi-automatic aspiration cell biopsy device of the present invention;

[0018] Figure 2 A top view of the semi-automatic aspiration cell biopsy device of the present invention;

[0019] Figure 3 It is a structural cross-sectional view of the semi-automatic aspiration cell biopsy device of the present invention.

[0020] In the figure: 1. power switch; 2. housing; 3. frequency adjustment button; 4. reciprocating amplitude display bar; 5. syringe barrel holder; 6. syringe handle slot; 7. piston rod hook; 8. push-pull electromagnet; 9. controller; 10. battery; 11. reciprocating shaft amplitude control baffle; 12. electromagnetic coil; 13. reciprocating motion mechanism; 14. magnetic suction sheet; 15. reset spring; 16. ball bearing. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 3 The present invention discloses a semi-automatic aspiration cell biopsy device, comprising a shell 2, the front end of the shell 2 is open, the front part of the shell 2 near the opening is provided with a reciprocating mechanism 13, the reciprocating mechanism 13 is provided with a syringe barrel holder 5, the syringe barrel holder 5 is used to hold the syringe barrel of the syringe, a through push-pull electromagnet 8 is provided near the rear part of the shell 2, the through push-pull electromagnet 8 is connected to the reciprocating mechanism 13, the through push-pull electromagnet 8 is used to drive the reciprocating mechanism 13 to reciprocate along the puncture direction, and a battery 10, an electromagnetic coil 12 and a A controller 9, wherein the battery 10 is used to supply power to the controller 9, the electromagnetic coil 12 and the push-pull electromagnet 8. A power switch 1 for controlling the cell biopsy device of the present invention is arranged outside the housing 2. The controller 9 is electrically connected to the push-pull electromagnet 8 via the control switch. The controller 9 is also electrically connected to the electromagnetic coil 12 via the control switch. The controller 9 is used to control the power on and power off of the push-pull electromagnet 8 and the electromagnetic coil 12 respectively. The electromagnetic coil 12 is magnetically connected to a magnetic attraction component, which is arranged on the reciprocating motion mechanism 13 and is connected to the piston rod of the syringe.

[0023] By setting up a push-pull electromagnet 8 that penetrates through, the reciprocating motion of the push-pull electromagnet reciprocating shaft when the push-pull electromagnet 8 is powered on and off can drive the reciprocating mechanism 13 to move along the puncture direction, thereby driving the syringe barrel holder 5 on the reciprocating mechanism 13 and the syringe held in the syringe barrel holder 5 to move, thereby completing the puncture action; then the electromagnetic coil 12 is energized to generate magnetic force, and under the action of the magnetic force, the magnetic attraction component moves toward the electromagnetic coil 12, and the piston rod of the syringe is driven by the magnetic attraction component to move while completing the action of aspirating cells. After completing the puncture and aspiration work, the push-pull electromagnet reciprocating shaft that penetrates the push-pull electromagnet 8 moves backward, driving the reciprocating mechanism 13, the syringe barrel holder 5 and the syringe in the syringe barrel holder 5 to move backward, so that the needle of the syringe withdraws from the puncture site of the human body, and then the syringe is taken out to complete the work of aspirating cells once.

[0024] Furthermore, the reciprocating mechanism 13 includes a slide rail disposed at the bottom of the front end of the housing 2, and the slide rail reduces the friction force when the reciprocating mechanism 13 moves. In this embodiment, a slide rail is also disposed at the top of the reciprocating mechanism 13, thereby further ensuring the puncture direction and reducing the sliding friction force.

[0025] Furthermore, the reciprocating mechanism 13 further includes a ball 16 disposed on the slide rail. By disposing the ball 16, sliding friction is changed into rolling friction, thereby further reducing friction, so that the movement of the reciprocating mechanism 13 is more precise.

[0026] Specifically, the syringe barrel holder 5 has a slot that is adapted to the shape of the syringe barrel, and the syringe barrel is placed and fixed through the slot. Furthermore, in order to prevent the syringe barrel from being displaced in the slot, syringe handle slots 6 corresponding to the syringe barrel handle are connected to both sides of the slot. When the syringe barrel is placed in the slot of the syringe barrel holder 5, the syringe handle is also correspondingly inserted into the syringe handle slot 6, thereby further ensuring that the syringe will not be displaced during the puncture process, and ensuring the accuracy of the puncture.

[0027] Specifically, the push-pull electromagnet 8 includes a push-pull electromagnet reciprocating shaft and a spring sleeved on the push-pull electromagnet reciprocating shaft, and one end of the push-pull electromagnet reciprocating shaft away from the spring is connected to the reciprocating mechanism. When the push-pull electromagnet 8 is powered on and off, the push-pull electromagnet reciprocating shaft drives the reciprocating mechanism to reciprocate.

[0028] Furthermore, in order to adjust the puncture depth of the syringe according to different situations and diseased parts, the cell biopsy device of the present invention also includes a reciprocating shaft amplitude control baffle, and the reciprocating shaft amplitude control baffle 11 is used to adjust the stroke of the push-pull electromagnet reciprocating shaft. Specifically, the end of the spring sleeve of the push-pull electromagnet reciprocating shaft abuts against the reciprocating shaft amplitude control baffle 11, and the reset position of the push-pull electromagnet reciprocating shaft can be adjusted by adjusting the position of the reciprocating shaft amplitude control baffle 11. There are many ways to adjust the reciprocating shaft amplitude control baffle 11. For example, a stroke channel of the reciprocating shaft amplitude control baffle 11 can be set, and a plurality of card slots are set on the stroke channel. A protrusion corresponding to the card slot is set on the reciprocating shaft amplitude control baffle 11, and the position of the reciprocating shaft amplitude control baffle 11 can be fixed by a card setting; it can also be as follows Figure 3 As shown, an external threaded rod is provided at the front end of the reciprocating shaft amplitude control baffle 11, and a threaded barrel matching the external threaded rod is provided on the housing 2. By rotating the threaded barrel, the reciprocating shaft amplitude control baffle 11 moves forward or backward, thereby converting the threaded motion into the linear motion of the reciprocating shaft amplitude control baffle 11, and the present invention does not limit this. In addition, a reciprocating amplitude display bar 4 can be provided on the surface of the housing 2, and the reciprocating amplitude display bar 4 is used to display the travel range of the push-pull electromagnet reciprocating shaft, and then display the puncture depth adjusted and limited by the reciprocating shaft amplitude control baffle 11.

[0029] Furthermore, the magnetic attraction component includes a magnetic attraction sheet 14, the magnetic attraction sheet 14 corresponds to the position of the electromagnetic coil 12, the magnetic attraction sheet 14 is connected to a piston rod hook 7, and the piston rod hook 7 is connected to the piston rod of the syringe. In this embodiment, the magnetic attraction sheet 14 is an iron sheet. The piston rod hook 7 is used to pull the piston rod of the syringe to move, thereby aspirating cells, so the piston rod hook 7 can contact the end of the piston rod of the syringe, thereby dragging the piston rod of the syringe to move; the piston rod hook 7 can also be provided with a bayonet to clamp the piston rod of the syringe for dragging.

[0030] Furthermore, when replacing a syringe, it is necessary to conveniently disengage the piston rod of the previous syringe from the piston rod hook 7 and fix the piston rod of the next syringe on the piston rod hook 7. Therefore, the present invention rotatably sets the piston rod hook 7 on the magnetic sheet 14, and realizes the rapid disengagement and clamping action of the syringe piston rod by rotating the piston rod hook 7. Alternatively, the hook head of the piston rod hook 7 can be rotatably set on the end of the rod body of the piston rod hook 7, and only rotating the hook head can also disengage the piston rod of the previous syringe from the piston rod hook 7, and then take out the piston rod of the syringe.

[0031] Furthermore, a reset spring 15 is provided in the housing, one end of which is connected to the magnetic sheet 14, and the other end is fixed to the reciprocating mechanism 13. When the magnetic sheet 14 moves toward the electromagnetic coil 12 under the suction force of the electromagnetic coil 12, the reset spring 15 stretches; when the electromagnetic coil 12 is powered off, the reset spring 15 retracts to drive the magnetic sheet 14 to reset.

[0032] Furthermore, the present invention also provides a frequency adjustment button 3 connected to the controller 9 on the surface of the shell 2, and the on-off time and frequency of the switch preset by the controller 9 correspond to the frequency adjustment button 3, so that the time used for puncturing and aspirating cells can be adjusted by the frequency adjustment button 3, that is, the frequency of aspiration cell biopsy can be adjusted.

[0033] When in use, the syringe barrel is placed in the slot of the syringe barrel holder 5, the syringe barrel handle is just located in the syringe barrel handle slot 6, the syringe needle is exposed outside the syringe barrel holder 5, the piston rod hook 7 is connected to the piston rod end of the syringe, the cell biopsy device of the present invention is held in the hand so that the syringe needle is facing the human body part, the power switch 1 is turned on, and then the controller 9 controls the switch to work so that the push-pull electromagnet 8 works, the push-pull electromagnet reciprocating shaft compresses the spring and then pushes the reciprocating mechanism 13 and the various components on the reciprocating mechanism 13 to move, and the injection is then performed. The needle of the syringe enters the human body and completes the puncture action according to the predetermined puncture distance. Then the controller 9 controls the electromagnetic coil 12 to be energized. The magnetic force generated by the electromagnetic coil 12 drives the iron sheet and the piston rod hook 7 on the iron sheet, and then the piston rod hook 7 drives the piston rod of the syringe to be pulled outward, generating negative pressure in the syringe barrel of the syringe to complete the action of aspirating cells. After the aspiration of cells is completed, the controller 9 controls the push-pull electromagnet reciprocating shaft rod to reset, thereby finally driving the syringe needle to be pulled out, and then the syringe is removed, the electromagnetic coil 12 is powered off, and the reset spring 15 resets the iron sheet and the piston rod hook 7. The next syringe can be loaded for the next puncture and aspiration action.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

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

Claims

1. A semi-automatic aspiration cell biopsy device, characterized in that: It comprises a shell, a reciprocating mechanism is arranged at the bottom of the front end of the shell, a syringe barrel holder is arranged on the reciprocating mechanism, the syringe barrel holder is used to hold the syringe barrel, a push-pull electromagnet is arranged in the shell, the push-pull electromagnet is connected to the reciprocating mechanism, the push-pull electromagnet is used to drive the reciprocating mechanism to reciprocate along the puncture direction, a battery, an electromagnetic coil and a controller are also arranged in the shell, the battery is used to supply power to the controller, the electromagnetic coil and the push-pull electromagnet, the controller is electrically connected to the push-pull electromagnet through a control switch, the controller is also electrically connected to the electromagnetic coil through a control switch, the controller is used to control the power on and off of the push-pull electromagnet and the electromagnetic coil, the electromagnetic coil is magnetically connected to a magnetic attraction component, and the magnetic attraction component is connected to the piston rod of the syringe; The syringe barrel holder has a clamping groove adapted to the shape of the syringe barrel, and the clamping groove is connected to a syringe handle clamping groove corresponding to the syringe barrel handle; The housing is provided with a reciprocating amplitude display bar, and the reciprocating amplitude display bar is used to display the stroke range of the reciprocating shaft rod penetrating the push-pull type electromagnet; The magnetic attraction component comprises a magnetic attraction sheet, the magnetic attraction sheet is connected to a piston rod hook, and the piston rod hook is connected to the piston rod of the syringe.

2. The semi-automatic aspiration cell biopsy device according to claim 1, characterized in that: The reciprocating motion mechanism comprises a slide rail arranged at the bottom of the front end in the shell.

3. The semi-automatic aspiration cell biopsy device according to claim 2, characterized in that: The reciprocating motion mechanism further includes a ball disposed on the slide rail.

4. The semi-automatic aspiration cell biopsy device according to claim 1, characterized in that: The push-pull electromagnet comprises a push-pull electromagnet reciprocating shaft and a spring sleeved on the push-pull electromagnet reciprocating shaft. One end of the push-pull electromagnet reciprocating shaft away from the spring is connected to the reciprocating motion mechanism.

5. The semi-automatic aspiration cell biopsy device according to claim 4, characterized in that: It also includes a reciprocating shaft amplitude control baffle, which is used to adjust the stroke of the reciprocating shaft that penetrates the push-pull electromagnet.

6. The semi-automatic aspiration cell biopsy device according to claim 1, characterized in that: The piston rod hook is rotatably arranged on the magnetic attraction sheet.

7. The semi-automatic aspiration cell biopsy device according to claim 1, characterized in that: A return spring is arranged in the shell, and the return spring is connected to the magnetic attraction sheet.

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