CN218899527U

CN218899527U - Tumor sampler

Info

Publication number: CN218899527U
Application number: CN202222078882.6U
Authority: CN
Inventors: 杨静悦
Original assignee: Air Force Medical University of PLA
Current assignee: Air Force Medical University of PLA
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2023-04-25
Anticipated expiration: 2032-08-09

Abstract

The utility model discloses a tumor sampler, which relates to the field of medical equipment and comprises a sleeve and a threaded ring, wherein one sides of the two sections of the sleeve, which are close to each other, are fixedly connected with T-shaped rings, both sides of the threaded ring are provided with T-shaped sliding grooves, the T-shaped rings are clamped with the T-shaped sliding grooves and are in sliding connection, the bottom of the sleeve is fixedly connected with a sealing sleeve, the inner wall of the sleeve is in sliding connection with a sampling tube, and the side wall of the upper part of the sampling tube is in threaded connection with the inner wall of the threaded ring; according to the utility model, through the arrangement of the sampling needle, the sampling groove, the sampling blade, the push ring and the lug, the sampling needle is rotated by the push ring and the lug, so that the sampling groove and the sampling blade can smoothly sample the tumor under the action of rotation, and the problems that the traditional negative pressure sampling is difficult to suck out the sample and the pain degree of a patient is increased due to forced negative pressure extraction can be avoided, thereby not only improving the sampling efficiency, but also effectively reducing the damage to the patient during sampling.

Description

Tumor sampler

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a tumor sampler.

Background

Tumors are abnormal lesions formed by the fact that under the action of various cancerogenic factors, a certain cell of local tissues loses the normal regulation of the growth of the cells at the gene level, and the cells cause the clonality abnormal hyperplasia of the cells. However, tumors are also classified into malignant and benign tumors, and pathological analysis of the tumor requires sampling analysis of the tumor interior. Clinically, the tumor biopsy sampling of the patient can be realized by a scalpel, but the wound is large, so that the pain is brought to the patient, and the current syringe is mostly adopted for sampling

At present, when a syringe is used for sampling, a medical staff is required to puncture a needle head to a tumor part, but some parts of a human body are developed in muscle, the forced puncture not only requires larger physical strength, but also is easy to cause the condition that the puncture needle is swayed and bent in the forced puncture process, so that the sampling accuracy is influenced; because the tumor volume is far greater than the sampling needle head, the negative pressure of the syringe is utilized to absorb the effect to force the tumor part to be peeled off, the existing resistance is large, the tumor is not easy to sample, the sampling efficiency is high, and the problem of increased pain of a patient caused by forced absorption is also solved.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, manual direct puncture is laborious and the puncture needle is easy to shake and bend, and negative pressure sampling is difficult to suck out a sample and forced negative pressure extraction causes the pain degree of a patient to be increased.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the tumor sampler comprises a sleeve and a threaded ring, wherein one sides of the two sections of the sleeve, which are close to each other, are fixedly connected with T-shaped rings, T-shaped sliding grooves are formed in two sides of the threaded ring, the T-shaped rings are clamped with the T-shaped sliding grooves and are in sliding connection, and the bottom of the sleeve is fixedly connected with a sealing sleeve;

the inner wall of the sleeve is slidably connected with a sampling tube, the side wall of the upper part of the sampling tube is in threaded connection with the inner wall of the threaded ring, the bottom end of the sampling tube is fixedly connected with a puncture needle, the inner wall of the sampling tube is slidably connected with a piston plate, and the side wall of the piston plate is fixedly connected with a sampling rod.

Preferably, the sampling groove is formed in the middle of the inner cavity of the sampling rod and the inner cavity of the piston plate, the inner wall of the sampling groove is slidably connected with a sealing plate, a sampling needle is fixedly connected to one side, close to the piston plate, of the sealing plate, and the sampling rod is fixedly connected to one side, far away from the piston plate, of the sealing plate.

Preferably, the sampling groove is formed in the side wall of the sampling needle, and the sampling blade is fixedly connected inside the sampling groove.

Preferably, the sampling needle outer diameter is smaller than the puncture needle inner diameter, the sampling needle axis coincides with the puncture needle axis, and the sampling needle length is greater than the puncture needle length.

Preferably, the top end of the sampling rod is fixedly connected with a push ring, and the side wall of the push ring is annularly provided with a bump.

Preferably, the sampling tube, the sampling rod and the side wall of the sampling rod are all provided with scale marks, limiting sliding grooves are formed in two sides of the top of the sleeve, the side wall of the sampling tube is fixedly connected with a limiting sliding block, and the limiting sliding block is clamped with the limiting sliding grooves and is in sliding connection with the limiting sliding grooves.

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

1. the utility model utilizes the screw thread precession relation between the sampling tube and the screw thread ring, can facilitate medical staff to pass the puncture needle through the skin of a patient, greatly saves the force required during puncture, thereby improving the sampling efficiency, and can also effectively avoid the condition that the puncture needle is swayed and bent during manual penetration, thereby improving the sampling accuracy of the device.

2. According to the utility model, through the arrangement of the sampling needle, the sampling groove, the sampling blade, the push ring and the lug, the sampling needle is rotated by the push ring and the lug, so that the sampling groove and the sampling blade can smoothly sample the tumor under the action of rotation, and the problems that the traditional negative pressure sampling is difficult to suck out the sample and the pain degree of a patient is increased due to forced negative pressure extraction can be avoided, thereby not only improving the sampling efficiency, but also effectively reducing the damage to the patient during sampling.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a tumor sampler according to the present utility model;

FIG. 2 is a schematic diagram showing the internal cross-sectional structure of a tumor sampler according to the present utility model;

fig. 3 is an enlarged schematic view of the area a in fig. 2 of a tumor sampler according to the present utility model.

In the figure: 1. a sleeve; 101. a T-ring; 2. a threaded ring; 3. sealing sleeve; 4. a sampling tube; 41. a piston plate; 42. a sampling rod; 5. a puncture needle; 6. a sampling groove; 61. a sealing plate; 62. a sampling needle; 621. a sampling groove; 622. a sampling blade; 63. a sampling rod; 631. a push ring; 632. and a bump.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 and 2, a tumor sampler comprises a sleeve 1 and a threaded ring 2, wherein one sides of the two sections of sleeve 1, which are close to each other, are fixedly connected with a T-shaped ring 101, two sides of the threaded ring 2 are provided with T-shaped sliding grooves, the T-shaped ring 101 is clamped with the T-shaped sliding grooves and is in sliding connection, and the bottom of the sleeve 1 is fixedly connected with a sealing sleeve 3;

the inner wall sliding connection of sleeve pipe 1 has sampling tube 4, threaded connection between sampling tube 4 upper portion lateral wall and the screwed ring 2 inner wall, and sampling tube 4 bottom fixedly connected with pjncture needle 5, sampling tube 4 inner wall sliding connection have piston plate 41, and piston plate 41 lateral wall fixedly connected with sampling rod 42.

Through the setting of above-mentioned structure, utilize the screw thread precession relation between sampling tube 4 and the screwed ring 2, can be convenient for medical personnel pass patient's skin with pjncture needle 5, required power when having saved the puncture greatly to improved sampling efficiency, and can also effectively avoid the condition that pjncture needle 5 takes place to rock when artifical penetrating to bend, with this sampling accuracy that has improved the device.

Referring to fig. 2 and 3, a sampling groove 6 is formed in the middle of the inner cavity of the sampling rod 42 and the inner cavity of the piston plate 41, a sealing plate 61 is slidably connected to the inner wall of the sampling groove 6, a sampling needle 62 is fixedly connected to one side of the sealing plate 61 close to the piston plate 41, and a sampling rod 63 is fixedly connected to one side of the sealing plate 61 far away from the piston plate 41;

referring to fig. 3, a sampling slot 621 is formed on the side wall of the sampling needle 62, and a sampling blade 622 is fixedly connected inside the sampling slot 621;

through the setting of above-mentioned structure, after pjncture needle 5 reached the sample position, again stretch out sampling needle 62, rotate sampling needle 62 immediately, sampling groove 621 and sampling blade 622 are under rotatory effect, can be smooth carry out the section sample to the tumour to this can avoid being difficult to with the sample suction when traditional negative pressure sample and force negative pressure extraction to lead to the painful degree increase problem of patient, thereby not only improved sampling efficiency, also effectively reduced the injury to causing the patient when taking a sample.

Referring to fig. 2, wherein the outer diameter of the sampling needle 62 is smaller than the inner diameter of the puncture needle 5, the axis of the sampling needle 62 coincides with the axis of the puncture needle 5, and the length of the sampling needle 62 is longer than the length of the puncture needle 5;

through the arrangement of the structure, the sampling needle 62 can be ensured to extend smoothly, the smooth proceeding of the sampling work is ensured, and the practicability of the device is improved.

Referring to fig. 2, a push ring 631 is fixedly connected to the top end of the sampling rod 63, and a bump 632 is annularly disposed on the sidewall of the push ring 631;

through the setting of above-mentioned structure, can be convenient for stretch out sampling needle 62, can improve the frictional force when rotating push ring 631 moreover to sampling needle 62 rotates of being convenient for, has ensured sampling efficiency of sampling needle 62.

Referring to fig. 1, scale marks are arranged on the side walls of a sampling tube 4, a sampling rod 42 and a sampling rod 63, limiting sliding grooves are formed in two sides of the top of a sleeve 1, a limiting sliding block is fixedly connected with the side wall of the sampling tube 4, and the limiting sliding block is clamped with the limiting sliding grooves and is in sliding connection with the limiting sliding grooves;

through the arrangement of the structure, the insertion depth of the puncture needle 5 and the sampling needle 62 can be accurately known, so that the sampling position can be accurately controlled, and the sampling precision is improved; moreover, the clamping sliding relationship between the limiting sliding block and the limiting sliding groove is utilized, so that the puncture needle 5 can be prevented from rotating when being deep, the puncture injury to a patient is reduced, and the practicability of the device is improved.

Referring to fig. 1 to 3, in the present utility model, when tumor sampling is performed, firstly, the sampling tube 4 is inserted into the sleeve 1, and the limit slide block is inserted into the limit chute, and then the threaded ring 2 is slightly rotated, so that a fixed connection is formed between the sampling tube 4 and the sleeve 1, and then the sampling rod 42 is pushed to make the piston plate 41 go deep into the bottom end of the sampling tube 4, so that the air inside the sampling tube 4 is discharged; then the sampling position of the patient is disinfected, the sealing sleeve 3 is clamped at the sampling position, so that the infection problem caused by external environment factors in the puncturing process can be reduced, the threaded ring 2 can be rotated again, the sampling tube 4 is continuously penetrated into the skin of the patient, the position of the scale mark on the side wall of the sampling tube 4 is observed at the moment by utilizing the puncturing needle 5, after the position of the tumor is reached, the push ring 631 is pushed, the sampling needle 62 extends out of the puncturing needle 5, the sampling needle 62 is rotated immediately, the sampling groove 621 and the sampling blade 622 can smoothly slice the tumor under the rotating action, the sampling needle 62 is reset afterwards, the sampling rod 42 is pulled to drive the piston plate 41 to move upwards, the cut tumor fragments are sucked into the sampling tube 4 under the adsorption action generated by the piston plate 41, and then the threaded ring 2 is rotated reversely, so that the puncturing needle 5 is pulled out, and the whole sampling work is completed; by utilizing the screw thread precession relation between the sampling tube 4 and the screw thread ring 2, medical staff can conveniently penetrate the puncture needle 5 through the skin of a patient, the required force during puncture is greatly saved, thereby the sampling efficiency is improved, and the condition that the puncture needle 5 is swayed and bent during manual penetration can be effectively avoided, so that the sampling accuracy of the device is improved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The tumor sampler comprises a sleeve (1) and a threaded ring (2), and is characterized in that two sections of the sleeve (1) are fixedly connected with a T-shaped ring (101) on one side, which is close to each other, of the sleeve, T-shaped sliding grooves are formed in two sides of the threaded ring (2), the T-shaped ring (101) is clamped with the T-shaped sliding grooves and is in sliding connection with the T-shaped sliding grooves, and a sealing sleeve (3) is fixedly connected to the bottom of the sleeve (1);

the inner wall sliding connection of sleeve pipe (1) has sampling tube (4), threaded connection between sampling tube (4) upper portion lateral wall and screwed ring (2) inner wall, sampling tube (4) bottom fixedly connected with pjncture needle (5), sampling tube (4) inner wall sliding connection has piston plate (41), piston plate (41) lateral wall fixedly connected with sampling rod (42).

2. The tumor sampler according to claim 1, wherein the sampling rod (42) and the middle part of the inner cavity of the piston plate (41) are provided with sampling grooves (6), the inner walls of the sampling grooves (6) are slidably connected with sealing plates (61), one side of each sealing plate (61) close to the piston plate (41) is fixedly connected with a sampling needle (62), and one side of each sealing plate (61) far away from the piston plate (41) is fixedly connected with a sampling rod (63).

3. The tumor sampler of claim 2, wherein the sampling needle (62) has a sampling slot (621) formed in a side wall thereof, and a sampling blade (622) is fixedly connected to the sampling slot (621).

4. A tumor sampler according to claim 3, wherein the outer diameter of the sampling needle (62) is smaller than the inner diameter of the puncture needle (5), the axis of the sampling needle (62) coincides with the axis of the puncture needle (5), and the length of the sampling needle (62) is greater than the length of the puncture needle (5).

5. The tumor sampler of claim 2, wherein a push ring (631) is fixedly connected to the top end of the sampling rod (63), and a bump (632) is annularly arranged on the side wall of the push ring (631).

6. The tumor sampler according to claim 2, wherein the side walls of the sampling tube (4), the sampling rod (42) and the sampling rod (63) are provided with scale marks, the two sides of the top of the sleeve (1) are provided with limiting sliding grooves, the side wall of the sampling tube (4) is fixedly connected with a limiting sliding block, and the limiting sliding block is clamped with the limiting sliding grooves and is in sliding connection with the limiting sliding grooves.