CN213283100U

CN213283100U - Gynecological tumor sample tissue sampling device

Info

Publication number: CN213283100U
Application number: CN202021570984.4U
Authority: CN
Inventors: 叶枫
Original assignee: Wenzhou Central Hospital
Current assignee: Wenzhou Central Hospital
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-05-28
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses a gynaecology's tumour sample tissue sampling device, including needle tubing and syringe needle, be provided with the piston in the needle tubing, be provided with the scale mark on the needle tubing, the terminal surface that the piston deviates from syringe needle one end is provided with two bracing pieces, the tip that every bracing piece deviates from piston one end all is provided with the guide block, the gliding guide way of confession guide block is seted up to the inner wall of needle tubing, two bracing pieces deviate from and are provided with the dead lever between the terminal surface of piston one end, be provided with the drive block that is located between two bracing pieces in the needle tubing, the both ends tip of drive block run through respectively to the outside of needle tubing and with syringe needle tube horizontal sliding connection, the one end tip of drive block is provided with the button, the one end slope that the drive block deviates. The utility model has the advantages of improve sampling device and use the convenience.

Description

Gynecological tumor sample tissue sampling device

Technical Field

The utility model relates to the field of medical equipment, in particular to gynecological tumor sample tissue sampling device.

Background

Tumor samplers are devices that clinically take tumor biopsies from patients. When a patient is clinically subjected to tumor biopsy sampling, a syringe is mostly adopted for sampling, and tumor tissues are sucked by means of negative pressure generated in the process of syringe extraction.

The patent with publication number CN202776390U discloses a body surface tumor sampler, which comprises a needle tube, a needle handle, a piston and a needle head, wherein the needle head is connected with the front end of the needle tube, the needle handle is connected with the piston, the piston is positioned in the needle tube, the needle handle pulls the piston to form negative pressure in the needle tube, the front end of the needle head is provided with a groove, the side edge of the groove is provided with a cutting edge, a needle core is also arranged in the needle tube, the front end of the needle core is provided with a scraper, and the tail end of the needle core penetrates through the piston to be.

When utilizing above-mentioned tumour sampler, need medical staff one hand to hold up the needle tubing, the other hand pulls the needle handle to utilize the negative pressure in the needle tubing to extract tumour tissue, because above-mentioned tumour ware needs two hands simultaneous operation, just can accomplish the sample of tumour tissue, make medical staff can't be at the in-process of sample, touch the detection to patient's tumour position, there is the problem that the degree of using is poor, awaits improving.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a gynaecology's tumour sample tissue sampling device has the advantage that improves the convenient degree of use.

The above technical purpose of the present invention can be achieved by the following technical solutions: a gynecological tumor sample tissue sampling device comprises a needle tube and a needle head, wherein a piston is arranged in the needle tube, scale marks are arranged on the needle tube, the end face, deviating from one end of the needle head, of the piston is provided with two supporting rods, the length directions of the two supporting rods are respectively vertical to the end face, deviating from one end of the needle head, of the piston, the end part, deviating from one end of the piston, of each supporting rod is provided with a guide block, the inner wall of the needle tube is provided with a guide groove for the guide block to slide, a fixing rod is arranged between the end faces, deviating from one end of the piston, of the two supporting rods, a driving block is arranged in the needle tube and positioned between the two supporting rods, the length direction of the driving block is respectively vertical to the length direction of the fixing rod and the length directions of the two supporting rods, and the end parts at, the end part of one end of the driving block is provided with a button, one end of the driving block, which deviates from the piston, is obliquely provided with a driving plate used for abutting against the fixing rod, one end of the driving plate, which deviates from the driving block, faces towards the direction of the button, and the end face of the fixing rod, which deviates from one end of the piston, is provided with a needle handle.

Through adopting above-mentioned technical scheme, when needs take a sample to tumour tissue, pierce patient's skin with the syringe needle, then promote the button and drive the synchronous horizontal slip of drive block and drive plate. Meanwhile, under the action of the inclined driving plate, the driving plate drives the fixing rod, the supporting rod and the piston to synchronously move and gradually keep away from the needle head, and then negative pressure is generated in the needle tube, so that tissue fluid is sucked. Through setting up the structure succinctly to promote the drive block motion through the level, realize sliding of piston vertical direction, realize sampling device's one-hand sample, thereby improved sampling device's use convenience.

The utility model discloses a further set up to: ribbed plates are arranged between the side wall of the driving plate close to one side of the driving block and the side wall of the driving block close to one side of the driving plate.

Through adopting above-mentioned technical scheme, through setting up the floor, improve the structural strength between drive plate and the drive block to improve sampling device's stability in use.

The utility model discloses a further set up to: and a locking mechanism is arranged between the end part of the driving block, which is far away from one end of the button, and the outer wall of the needle tube.

Through adopting above-mentioned technical scheme, when the piston moves towards the one side that deviates from the syringe needle, produce the negative pressure in the needle tubing can, and the piston has the motion trend that rolls back under the effort of negative pressure, through setting up locking mechanical system, when effectively preventing medical staff from carrying out the tumour sample, the phenomenon that rolls back appears in the piston to further improve sampling device's use convenience.

The utility model discloses a further set up to: the locking mechanism comprises a locking tube arranged on the outer wall of the needle tube, a locking rod is connected in the locking tube in a sliding way, the locking rod is arranged perpendicular to the driving block, the end surface of the locking rod close to one end of the driving block is provided with helical teeth, the side wall of the driving block close to one side of the locking rod is provided with a plurality of tooth grooves capable of forming matching with the helical teeth at intervals along the length direction, the end part of the locking pipe, which is away from one end of the driving block, is bent inwards to form a flanging, a limiting ring which is used for abutting against the flanging is fixedly sleeved at the end part of the locking rod, which is close to one end of the helical tooth, the locking rod is sleeved with a spring positioned between the flanging and the limiting ring, one end part of the spring is fixedly connected with the flanging, and the end part of the other end of the locking rod is fixedly connected with the limiting ring, and the end part of the locking rod, which deviates from one end of the driving block, penetrates to the outside of the locking pipe and is provided with a handle.

Through adopting above-mentioned technical scheme, through setting up simple structure, locking effect is stable, make things convenient for the locking mechanical system of unblock and locking, realize injecing fast of driving block position to improve work efficiency. Through the mutual cooperation of skewed tooth and tooth's socket for the drive block can only move towards the one side that deviates from the button and slide, thereby has the effect that prevents the drive block and move back, and then improves sampling device's use convenience. Simultaneously, because the distance between two adjacent tooth's socket equals for distance between two adjacent tooth's socket is corresponding with the scale mark, makes medical staff can judge the sample volume of tumour tissue sample through the quantity of observing the tooth's socket that stretches out the needle tubing, thereby further improves sampling device's use convenience.

The utility model discloses a further set up to: the end part of the helical tooth close to one end of the driving block is arranged in an arc shape.

Through adopting above-mentioned technical scheme, because the tip that the skewed tooth is close to drive block one end is circular-arc, has good guide effect, can improve the motion ride comfort of drive block, can realize locking mechanical system's quick locking again, and then realize the quick injecing of drive block position, improve the convenient degree of sampling device use.

The utility model discloses a further set up to: and a liquid collecting hole is arranged through the outer wall of the needle head, which is far away from one side of the needle tube.

Through adopting above-mentioned technical scheme, through setting up the liquid hole of adopting for when extracting tumor tissue, tumor tissue can enter into the syringe needle fast through the liquid hole of adopting, thereby improves work efficiency.

To sum up, the utility model discloses following beneficial effect has:

1. the structure is simple, the driving block is horizontally pushed to move, the piston slides in the vertical direction, and the sampling by one hand of the sampling device is realized, so that the use convenience of the sampling device is improved;

2. by arranging the locking mechanism, the phenomenon that the piston retreats when medical staff take tumor samples is effectively prevented, so that the use convenience of the sampling device is further improved;

3. through setting up simple structure, locking effect is stable, make things convenient for the locking mechanical system of unblock and locking, realize injecing fast of driving block position to improve work efficiency.

Drawings

FIG. 1 is a schematic structural view of an embodiment;

FIG. 2 is a schematic view showing the internal structure of the needle cannula in the present embodiment;

FIG. 3 is a sectional view of the present embodiment;

fig. 4 is an enlarged schematic view of the region a in fig. 3.

Reference numerals: 1. a needle tube; 2. a needle head; 3. a liquid extraction hole; 4. a piston; 5. a support bar; 6. fixing the rod; 7. a needle handle; 8. a drive block; 9. a button; 10. a drive plate; 11. a rib plate; 12. a locking mechanism; 121. locking the tube; 122. a locking lever; 13. helical teeth; 14. a tooth socket; 15. flanging; 16. a limiting ring; 17. a spring; 18. a handle; 19. a guide block; 20. a guide groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, a gynecological tumor sample tissue sampling device comprises a needle tube 1 and a needle head 2, wherein a liquid sampling hole 3 penetrates through the outer wall of one end of the needle head 2, which is far away from the needle tube 1. The needle tube 1 is connected with a piston 4 in a sliding way, and the needle tube 1 is also provided with scale marks (not shown in the figure).

Referring to fig. 2 and 3, two support rods 5 are arranged on the end surface of the piston 4 at the end departing from the needle 2, and the length directions of the two support rods 5 are respectively perpendicular to the end surface of the piston 4 at the end departing from the needle 2. The end of each support rod 5, which is away from one end of the piston 4, is provided with a guide block 19, and the inner wall of the needle tube 1 is provided with a guide groove 20 for the guide block 19 to slide.

Referring to fig. 2, a fixing rod 6 is disposed between end surfaces of the two support rods 5 facing away from one end of the piston 4, and a needle handle 7 is disposed on an end surface of the fixing rod 6 facing away from one end of the piston 4.

Referring to fig. 2, a driving block 8 having a rectangular cross section is disposed between the two support rods 5 in the needle tube 1, and the length direction of the driving block 8 is perpendicular to the length direction of the fixing rod 6 and the length direction of the two support rods 5, respectively. Meanwhile, the end parts of the two ends of the driving block 8 respectively penetrate through the outside of the needle tube 1 and form horizontal sliding connection with the needle tube 1.

Referring to fig. 2 and 3, a button 9 is provided at an end of the driving block 8, a driving plate 10 for abutting against the fixing rod 6 is obliquely provided at an end of the driving block 8 facing away from the piston 4, and an end of the driving plate 10 facing away from the driving block 8 is obliquely inclined toward the button 9.

Referring to fig. 2 and 3, in order to improve the structural strength between the driving plate 10 and the driving block 8, ribs 11 are further provided between a side wall of the driving plate 10 on the side close to the driving block 8 and a side wall of the driving block 8 on the side close to the driving plate 10. The cross section of the rib 11 is triangular, and the inclined surface of the rib 11 is abutted against the driving plate 10. Specifically, the following are mentioned: one ends of the rib plate 11 and the driving plate 10 are fixedly connected with the driving block 8.

When tumor tissue needs to be sampled, the needle head 2 and the liquid sampling hole 3 are completely penetrated into the skin of a patient, and then the button 9 is pushed to drive the driving block 8 and the driving plate 10 to synchronously and horizontally slide. Meanwhile, under the action of the inclined driving plate 10, the driving plate 10 drives the fixing rod 6, the supporting rod 5 and the piston 4 to move synchronously and gradually get away from the needle head 2, and then negative pressure is generated in the needle tube 1, so that tissue fluid is sucked. It should be noted that: the tissue fluid is positioned in a closed area formed by the piston 4 and the needle tube 1, so that the tissue fluid is not contacted with other structures, and the possibility of tissue fluid pollution is avoided.

Referring to fig. 3 and 4, a locking mechanism 12 is provided between the end of the drive block 8 remote from the button 9 and the outer wall of the barrel 1. The lock mechanism 12 includes a lock tube 121 provided on the outer wall of the needle cannula 1, a lock lever 122 is slidably attached to the lock tube 121, and the lock lever 122 is arranged perpendicularly to the drive block 8.

Referring to fig. 3 and 4, the end surface of the locking lever 122 near one end of the driving block 8 is provided with a helical tooth 13, and the end of the helical tooth 13 near one end of the driving block 8 is arranged in a circular arc shape (rounded). The side wall of the driving block 8 close to one side of the locking rod 122 is provided with a plurality of tooth grooves 14 at intervals along the length direction thereof, and the tooth grooves 14 can be matched with the helical teeth 13.

Referring to fig. 3 and 4, the end of the locking tube 121 opposite to the end of the driving block 8 is bent inward to form a flange 15, a limiting ring 16 for abutting against the flange 15 is fixedly sleeved on the end of the locking rod 122 close to the end of the helical tooth 13, and a spring 17 positioned between the flange 15 and the limiting ring 16 is sleeved on the locking rod 122. One end of the spring 17 is fixedly connected with the flange 15, and the other end is fixedly connected with the limiting ring 16. The end of the locking lever 122 facing away from the end of the drive block 8 extends outside the locking tube 121 and is provided with a handle 18.

When sampling tumour tissue, the driving block 8 slides towards the end facing away from the button 9, so that the side wall of the driving block 8 on the side close to the locking lever 122 abuts against the helical teeth 13. At this time, the helical teeth 13 drive the locking lever 122 to slide along the locking tube 121 toward the side away from the driving block 8 under the interference of the driving block 8.

The stop collar 16 is then slid by the locking lever 122 towards the side facing away from the drive block 8 and the spring 17 is brought into compression. Until the helical teeth 13 are aligned with the tooth grooves 14, the limit ring 16 drives the locking rod 122 under the elastic force of the spring 17 to slide the helical teeth 13 towards one side of the driving block 8, and the helical teeth 13 are matched with the corresponding tooth grooves 14, so that the position of the driving block 8 is limited.

When the locking mechanism 12 needs to be unlocked, the handle 18 is pulled to drive the locking rod 122 and the helical teeth 13 to slide towards the side away from the driving block 8, and the helical teeth 13 are completely separated from the tooth grooves 14, so that the locking mechanism 12 is unlocked.

When tumor tissue in the needle tube 1 needs to be extracted, the button 9 is pulled to drive the driving block 8 and the driving plate 10 to slide towards one side close to the button 9. When the side wall of the drive plate 10 close to the button 9 butts against the inner wall of the needle tube 1, the needle handle 7 is pushed to drive the fixing rod 6, the support rod 5 and the piston 4 to slide towards the side close to the needle head 2, and the tumor tissue in the needle tube 1 is discharged through the needle head 2.

Through the locking mechanism 12 which is simple in structure, stable in locking effect and convenient to unlock and lock, the position of the driving block 8 is quickly limited, and therefore working efficiency is improved. Through the mutual cooperation of skewed tooth 13 and tooth's socket 14 for drive block 8 can only slide towards the one side that deviates from button 9, thereby has the effect that prevents drive block 8 and reverses, and then improves sampling device's convenience of use.

Meanwhile, as the distance between two adjacent tooth sockets 14 is equal, the distance between two adjacent tooth sockets 14 corresponds to the scale mark, so that medical staff can judge the sampling volume of the tumor tissue sample by observing the number of the tooth sockets 14 extending out of the needle tube 1, and the use convenience of the sampling device is further improved.

The specific embodiments are only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a gynaecology's tumour sample tissue sampling device, includes needle tubing (1) and syringe needle (2), be provided with piston (4) in needle tubing (1), be provided with scale mark, its characterized in that on needle tubing (1): the end face of one end of the piston (4) deviating from the needle head (2) is provided with two support rods (5), the length directions of the two support rods (5) are respectively vertical to the end face of one end of the piston (4) deviating from the needle head (2), the end part of one end of each support rod (5) deviating from the piston (4) is provided with a guide block (19), the inner wall of the needle tube (1) is provided with a guide groove (20) for the guide block (19) to slide, a fixed rod (6) is arranged between the end faces of the two support rods (5) deviating from one end of the piston (4), a driving block (8) positioned between the two support rods (5) is arranged in the needle tube (1), and the length directions of the driving block (8) are respectively vertical to the length directions of the fixed rod (6) and the two support rods (5), the both ends tip of drive block (8) run through respectively extremely the outside of needle tubing (1) and with needle tubing (1) forms horizontal sliding connection, the one end tip of drive block (8) is provided with button (9), drive block (8) deviate from the one end slope of piston (4) is provided with and is used for conflicting drive plate (10) of dead lever (6), and drive plate (10) deviate from the one end orientation of drive block (8) button (9) direction slope, dead lever (6) deviate from the terminal surface of piston (4) one end is provided with needle handle (7).

2. A gynecological tumor sample tissue sampling device according to claim 1, characterized in that: and a rib plate (11) is arranged between the side wall of the driving plate (10) close to one side of the driving block (8) and the side wall of the driving block (8) close to one side of the driving plate (10).

3. A gynecological tumor sample tissue sampling device according to claim 1, characterized in that: a locking mechanism (12) is arranged between the end part of one end of the driving block (8) far away from the button (9) and the outer wall of the needle tube (1).

4. A gynecological tumor sample tissue sampling device according to claim 3, characterized in that: the locking mechanism (12) comprises a locking tube (121) arranged on the outer wall of the needle tube (1), a locking rod (122) is connected in the locking tube (121) in a sliding mode, the locking rod (122) and the driving block (8) are arranged in a vertical mode, the end face, close to one end of the driving block (8), of the locking rod (122) is provided with inclined teeth (13), the side wall, close to one side of the locking rod (122), of the driving block (8) is provided with a plurality of tooth grooves (14) capable of being matched with the inclined teeth (13) in a spaced mode along the length direction of the side wall, the end portion, close to one end of the inclined teeth (13), of the locking tube (121) deviates from one end of the driving block (8) is bent inwards to form a flanging (15), a limiting ring (16) used for abutting against the flanging (15) is sleeved on the end portion, close to one end of the inclined teeth (13), a spring (17) located between the flanging (15) and the, one end of the spring (17) is fixedly connected with the flanging (15), the other end of the spring is fixedly connected with the limiting ring (16), and the end of the locking rod (122) departing from one end of the driving block (8) penetrates through the outside of the locking pipe (121) and is provided with a handle (18).

5. A gynecological tumor sample tissue sampling device according to claim 4, characterized in that: the end part of the helical tooth (13) close to one end of the driving block (8) is arranged in an arc shape.

6. A gynecological tumor sample tissue sampling device according to claim 1, characterized in that: and a liquid collecting hole (3) penetrates through the outer wall of one end of the needle head (2) far away from the needle tube (1).