CN215821007U

CN215821007U - Disposable medical biopsy needle with damping protection structure

Info

Publication number: CN215821007U
Application number: CN202122318981.2U
Authority: CN
Inventors: 王伟; 胡敏; 岳仙娟; 李戈; 王斌; 来沙沙; 刘瑛; 杨小龙; 马荣荣
Original assignee: Xi'an Ruopu Technology Co ltd
Current assignee: Xi'an Ruopu Technology Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-02-15
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a disposable medical biopsy needle with a damping protection structure, which belongs to the technical field of medical instruments and comprises a protection tube, wherein the top end of the protection tube is fixedly connected with the bottom end of a connecting tube, the top end of the connecting tube is fixedly connected with the bottom end of a movable tube, the outer surface of the movable tube is in sliding connection with the inner wall of a limiting tube, the inner wall of the limiting tube is in sliding connection with the outer surface of an extrusion rod, and the inner wall of the protection tube is in sliding connection with the outer surface of a needle tube. This disposable medical biopsy needle with damping protective structure through setting up first gear, second gear, clamping jaw and lead screw, can take out the needle tubing of installing in the protective tube, and the medical staff of being convenient for carries out chemical examination to the needle tubing and handles, can install new needle tubing simultaneously, has avoided the waste of disposable protective tube, has improved the utilization ratio of protective tube, has reduced the degree of difficulty of retrieving this disposable biopsy needle simultaneously to the suitability of this disposable biopsy needle has been improved.

Description

Disposable medical biopsy needle with damping protection structure

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to a disposable medical biopsy needle with a damping protection structure.

Background

The biopsy needle is a medical instrument used for sampling and sucking cells and other purposes of cone tumors, unknown tumors and other living tissues of various organs such as kidney, liver, lung, breast, thyroid, prostate, pancreas, testis, uterus, ovary and body surface, but after the sampling, the commonly used biopsy needle needs to be tested, and because the needle tube is difficult to take out, the testing difficulty is increased, and the disposable biopsy needle protective tube is difficult to reuse, so that the resource waste is realized, and the recovery difficulty of the disposable biopsy needle is also improved.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects in the prior art, the utility model provides a disposable medical biopsy needle with a damping protection structure, which solves the problems that the conventional biopsy needle needs to be tested after sampling, the testing difficulty is increased because a needle tube is difficult to take out, the disposable biopsy needle protection tube is difficult to reuse, resources are wasted, and the recycling difficulty of the disposable biopsy needle is increased.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a disposable medical biopsy needle with a damping protection structure comprises a protection tube, the top end of the protection tube is fixedly connected with the bottom end of a connecting tube, the top end of the connecting tube is fixedly connected with the bottom end of a movable tube, the outer surface of the movable tube is slidably connected with the inner wall of a limiting tube, the inner wall of the limiting tube is slidably connected with the outer surface of an extrusion rod, the inner wall of the protection tube is slidably connected with the outer surface of a needle tube, two movable plates are arranged on the outer surface of the needle tube, the lower surface of the movable plate above the needle tube is fixedly connected with the top end of a connecting rod, the inner wall of the movable plate below the needle tube is in threaded connection with the outer surface of a lead screw, the top end of the lead screw is fixedly connected with the bottom end of the connecting rod, the top end of the connecting rod is in transmission connection with an output end of a motor, the outer surface of the connecting rod is fixedly connected with the inner wall of a first gear, and the outer surface of the first gear is meshed with the outer surface of a second gear, the outer surface of the screw rod is in threaded connection with the inner wall of the fixing block.

As a further scheme of the utility model: the top end of the movable tube is fixedly connected with the bottom end of the buffer spring, and the top end of the buffer spring is fixedly connected with the bottom end of the extrusion rod.

As a further scheme of the utility model: the surface of protective tube is provided with two first solid fixed rings, the surface of spacing pipe is provided with the solid fixed ring of second.

As a further scheme of the utility model: the top end of the extrusion rod is fixedly connected with the lower surface of the extrusion block, and the upper surface of the extrusion block is provided with an anti-slip pad.

As a further scheme of the utility model: the left side of the fixed block is hinged with the right sides of the two clamping jaws through pin shafts, and the inner walls of the two clamping jaws are in lap joint with the outer surface of the same needle tube.

As a further scheme of the utility model: the surface of motor and the inner wall fixed connection of first mounting panel, the surface of needle tubing and the inner wall fixed connection of second mounting panel, the left surface of first mounting panel and the right flank fixed connection of second fixed plate.

(III) advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

1. the disposable medical biopsy needle with the damping protection structure comprises a first gear, a second gear, a needle tube, a fixed block, clamping jaws and a screw rod, wherein after a medical worker samples a patient, the two clamping jaws are moved out firstly, then a motor is started, the output end of the motor rotates to drive a connecting rod to rotate, the connecting rod rotates to drive the screw rod to rotate, the screw rod is in threaded connection with a movable plate, when the screw rod rotates, the needle tube can be moved downwards through the movable plate, so that the needle tube in the protection tube can be taken out and stored by the medical worker, the needle tube arranged in the protection tube can be taken out through the arrangement of the screw rod, the medical worker can conveniently carry out chemical examination treatment on the needle tube, and after the needle tube is taken out, a new needle tube can be arranged in the protection tube through the transmission of the first gear and the second gear again for the medical worker to sample, the waste of the disposable protective tube is avoided, the utilization rate of the protective tube is improved, and the difficulty in recovering the disposable biopsy needle is reduced, so that the applicability of the disposable biopsy needle is improved.

2. This disposable medical biopsy needle with damping protective structure, through setting up the protecting tube, the connecting pipe, the movable tube, spacing pipe, buffer spring and stripper bar, when needs inject the patient, press the stripper bar earlier, the stripper bar extrudees buffer spring under the effect of stripper bar, the movable tube extrudees the connecting pipe under the effect of buffer spring elasticity, thereby it is internal with the intraductal liquid injection of needle to the patient, the above-mentioned mode can play spacing effect through buffer spring's setting, the too dark that the needle tubing pricked when preventing to inject the patient leads to the fact the damage to the patient, can protect the movable tube simultaneously, prevent that medical staff from extrudeing the phenomenon that leads to the movable tube damage hard.

3. This disposable medical biopsy needle with damping protective structure through setting up first fixed plate, second fixed plate, and the solid fixed ring of first fixed ring and second can be convenient for the hospital and get and put this biopsy needle, makes things convenient for medical staff to take a sample to the patient simultaneously, and the slipmat can prevent that the smooth phenomenon of hand appears when medical staff injects the patient.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic structural diagram of a front view cross section of the present invention;

FIG. 3 is a perspective structural view of the lead screw of the present invention;

FIG. 4 is a schematic view of the exploded structure of the buffer spring of the present invention;

in the figure: the device comprises a protection pipe 1, a connecting pipe 2, a movable pipe 3, a limiting pipe 4, a buffer spring 5, an extrusion rod 6, an extrusion block 7, a first fixing ring 8, a second fixing ring 9, a movable plate 10, a connecting rod 11, a screw rod 12, a motor 13, a first mounting plate 14, a second mounting plate 15, a first gear 16, a second gear 17, a needle tube 18, a fixed block 19 and a clamping jaw 20.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 4, the present invention provides a technical solution: a disposable medical biopsy needle with a damping protection structure comprises a protection tube 1, the top end of the protection tube 1 is fixedly connected with the bottom end of a connecting tube 2, the top end of the connecting tube 2 is fixedly connected with the bottom end of a movable tube 3, the outer surface of the movable tube 3 is slidably connected with the inner wall of a limiting tube 4, the inner wall of the limiting tube 4 is slidably connected with the outer surface of an extrusion rod 6, the inner wall of the protection tube 1 is slidably connected with the outer surface of a needle tube 18, two movable plates 10 are arranged on the outer surface of the needle tube 18, the lower surface of the upper movable plate 10 is fixedly connected with the top end of a connecting rod 11, the inner wall of the lower movable plate 10 is in threaded connection with the outer surface of a lead screw 12, the top end of the lead screw 12 is fixedly connected with the bottom end of the connecting rod 11, the top end of the connecting rod 11 is in transmission connection with the output end of a motor 13, and the outer surface of the connecting rod 11 is fixedly connected with the inner wall of a first gear 16, the outer surface of the first gear 16 is meshed with the outer surface of the second gear 17, and the outer surface of the screw rod 12 is in threaded connection with the inner wall of the fixed block 19.

Specifically, as shown in fig. 1 and 4, the top end of the movable tube 3 is fixedly connected with the bottom end of the buffer spring 5, the top end of the buffer spring 5 is fixedly connected with the bottom end of the extrusion rod 6, two first fixing rings 8 are arranged on the outer surface of the protection tube 1, a second fixing ring 9 is arranged on the outer surface of the limiting tube 4, the top end of the extrusion rod 6 is fixedly connected with the lower surface of the extrusion block 7, and an anti-slip pad is arranged on the upper surface of the extrusion block 7, so that the limiting effect can be achieved by arranging the buffer spring 5, the damage to the patient caused by the over-depth of the needle tube 18 when injecting the patient can be prevented, meanwhile, the movable tube 3 can be protected, the phenomenon that the movable tube 3 is damaged due to the forcible extrusion of medical staff can be prevented, the biopsy needle can be conveniently taken and placed by a hospital by arranging the first fixing rings 8 and the second fixing rings 9, and the sampling of the patient by the medical staff can be facilitated, by arranging the anti-slip pad, can prevent the phenomenon that the hands slide when medical staff injects the patient.

Specifically, as shown in fig. 3, the left side of the fixed block 19 is hinged to the right sides of the two clamping jaws 20 through a pin shaft, the inner walls of the two clamping jaws 20 are overlapped with the outer surface of the same needle tube 18, the outer surface of the motor 13 is fixedly connected with the inner wall of the first mounting plate 14, the outer surface of the needle tube 18 is fixedly connected with the inner wall of the second mounting plate 15, the left side of the first mounting plate 14 is fixedly connected with the right side of the second fixing plate, through the arrangement of the clamping jaws 20, the needle tube 18 can be fixed, the needle tube 18 is prevented from being loosened to hurt a patient during sampling, through the arrangement of the first mounting plate 14 and the second mounting plate 15, the motor 13 can be fixed, and the motor 13 is prevented from shaking during operation.

The working principle of the utility model is as follows:

after the medical staff samples the patient, the two clamping jaws 20 are moved out first, then the motor 13 is started, the output end of the motor 13 rotates to drive the connecting rod 11 to rotate, the connecting rod 11 rotates to drive the screw rod 12 to rotate, because the screw rod 12 is in threaded connection with the movable plate 10, when the screw rod 12 rotates, the needle tube 18 can be moved downwards through the movable plate 10, so that the needle tube 18 in the protective tube 1 can be taken out, and the medical staff can store the needle tube 18, when the needle tube 18 needs to be installed, the motor 13 is started first, the needle tube 18 is installed on the movable plate 10, the motor 13 rotates to drive the connecting rod 11 to rotate, thereby driving the first gear 16 to rotate and the screw rod 12 to move upwards, and because the first gear 16 is meshed with the second gear 17, the needle cannula 18 can be moved upward along the movable plate 10 to a predetermined position, and then the two jaws 20 are moved to the initial position to fix the needle cannula 18.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a take damping protective structure's disposable medical biopsy needle, includes protective tube (1), its characterized in that: the top of protective tube (1) is fixedly connected with the bottom of connecting tube (2), the top of connecting tube (2) is fixedly connected with the bottom of movable tube (3), the outer surface of movable tube (3) is connected with the inner wall of spacing tube (4) in a sliding manner, the inner wall of spacing tube (4) is connected with the outer surface of extrusion rod (6) in a sliding manner, the inner wall of protective tube (1) is connected with the outer surface of needle tube (18) in a sliding manner, the outer surface of needle tube (18) is provided with two movable plates (10), the lower surface of movable plate (10) above is fixedly connected with the top of connecting rod (11), the inner wall of movable plate (10) below is connected with the outer surface of screw rod (12) in a threaded manner, the top of screw rod (12) is fixedly connected with the bottom of connecting rod (11), the top of connecting rod (11) is connected with the output end of motor (13) in a transmission manner, the outer surface of the connecting rod (11) is fixedly connected with the inner wall of the first gear (16), the outer surface of the first gear (16) is meshed with the outer surface of the second gear (17), and the outer surface of the screw rod (12) is in threaded connection with the inner wall of the fixing block (19).

2. The disposable medical biopsy needle with a damping protection structure according to claim 1, wherein: the top end of the movable tube (3) is fixedly connected with the bottom end of the buffer spring (5), and the top end of the buffer spring (5) is fixedly connected with the bottom end of the extrusion rod (6).

3. The disposable medical biopsy needle with a damping protection structure according to claim 1, wherein: the surface of protective tube (1) is provided with two first solid fixed rings (8), the surface of spacing pipe (4) is provided with the solid fixed ring of second (9).

4. The disposable medical biopsy needle with a damping protection structure according to claim 1, wherein: the top end of the extrusion rod (6) is fixedly connected with the lower surface of the extrusion block (7), and the upper surface of the extrusion block (7) is provided with an anti-skid pad.

5. The disposable medical biopsy needle with a damping protection structure according to claim 1, wherein: the left side surface of the fixed block (19) is hinged with the right side surfaces of the two clamping jaws (20) through pin shafts, and the inner walls of the two clamping jaws (20) are in lap joint with the outer surface of the same needle tube (18).

6. The disposable medical biopsy needle with a damping protection structure according to claim 1, wherein: the surface of motor (13) and the inner wall fixed connection of first mounting panel (14), the surface of needle tubing (18) and the inner wall fixed connection of second mounting panel (15), the left surface of first mounting panel (14) and the right flank fixed connection of second fixed plate.