CN114947994A

CN114947994A - Disposable sample recoverer

Info

Publication number: CN114947994A
Application number: CN202210568046.8A
Authority: CN
Inventors: 胡兵; 杨航
Original assignee: West China Hospital of Sichuan University
Current assignee: West China Hospital of Sichuan University
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-08-30

Abstract

The invention provides a disposable specimen recoverer, and relates to the technical field of medical instruments. Including handheld portion, connecting portion and get material portion, connecting portion connect in handheld portion and draw materials between the portion, the portion of drawing materials is provided with the arm of drawing materials, the arm of drawing materials is connected with the driving piece, the driving piece is used for the drive the arm of drawing materials opens and shuts, be provided with the basket of drawing materials that is used for collecting the sample on the arm of drawing materials. The disposable sample recoverer provided by the invention can enter the alimentary canal through the endoscope biopsy hole under the endoscope, and can enter the alimentary canal once to finish collecting and picking up a plurality of samples, so that the disposable sample recoverer is very convenient.

Description

Disposable sample recoverer

Technical Field

The invention relates to the technical field of medical instruments, in particular to a disposable specimen recoverer.

Background

Living tissues such as polyps often grow out in the alimentary canal, doctors need collect the inspection to the living tissues, and before suction samples are sucked out after the alimentary canal polyp endoscope is resected, the traditional method of medical staff is to place a layer of gauze at the suction tube interface to place the samples and suck the samples and then directly suck the samples into a suction bottle, if a plurality of alimentary canal polyps are resected under the endoscope once, the gauze needs to be repeatedly placed, the gauze is taken down again to collect the samples of the suction, and the time and the labor are wasted.

The rest meat is cut off and taken out after being directly inserted into the alimentary canal by using the forceps, and if the rest meat needs to be collected for a plurality of times, the rest meat can only be inserted and taken out repeatedly, so that the pain of a patient is increased.

Therefore, aiming at the problems that a plurality of polyps or large specimens are not taken out enough in clinical practice at present and often need to be taken out for a plurality of times or cannot be taken out completely, the application particularly provides a disposable specimen recoverer for solving the technical problems.

Disclosure of Invention

The invention aims to provide a disposable sample recoverer, which is used for solving the problems.

The embodiment of the invention is realized by the following steps:

the utility model provides a disposable sample recoverer, includes handheld portion, connecting portion and gets material portion, connecting portion connect in handheld portion and draw materials between the portion, the portion of drawing materials is provided with the arm of drawing materials, the arm of drawing materials is connected with the driving piece, the driving piece is used for the drive the arm of drawing materials opens and shuts, be provided with the basket of drawing materials that is used for collecting the sample on the arm of drawing materials.

Further, in some embodiments of the present invention, the material drawing arm includes a fixed arm fixed to the front end of the connecting portion and a movable arm pivotally connected to the front end of the connecting portion via a first pivot.

The advantages based on the above design are: the fixed arm is fixedly connected with the connecting part, and the movable arm is rotatably connected with the connecting part through the first pivot, so that the material taking arm can be opened and closed freely, the material taking arm can be opened to pick up a sample when the sample is taken, and the material taking arm is closed and does not occupy space when the sample is not taken.

Further, in some embodiments of the present invention, the driving member includes a first driving wheel disposed between the fixed arm and the movable arm, the first driving wheel is fixedly sleeved on the first pivot, the connecting portion is provided with a hollow inner cavity, one end of the hollow inner cavity away from the first driving wheel is provided with a second pivot, the second pivot is fixedly sleeved with a second driving wheel, the first driving wheel and the second driving wheel are in driving connection, the second pivot extends out of the hollow inner cavity, and an end of the second pivot is provided with a rotating wheel assembly.

The advantages based on the above design are: the second pivot is driven to rotate by the rotating wheel component, the second pivot drives the second driving wheel to rotate, then the second driving wheel drives the first driving wheel to rotate, correspondingly, the first driving wheel drives the first pivot to rotate, and then the first pivot rotates to realize the rotation of the movable arm, so that the material taking arm can be freely opened and closed.

Further, in some embodiments of the present invention, the rotating wheel assembly includes a driving roller fixedly sleeved at the end of the second pivot and a damping roller arranged side by side with the driving roller, and the damping roller is used for limiting the driving roller to rotate autonomously.

The advantages based on the above design are: the adoption comprises initiative gyro wheel and damping gyro wheel constitution swivel subassembly to through rotating the initiative gyro wheel, can drive the second pivot and rotate, the second pivot just drives the second drive wheel and rotates, then the second drive wheel just drives first drive wheel and rotates, it is corresponding, first drive wheel just drives first pivot, and then first pivot has realized the digging arm and has rotated, make the arm of drawing materials freely open and shut, simultaneously because the existence of damping gyro wheel, so accomplish the adjustment to the arm angle that opens and shuts of drawing materials at the initiative gyro wheel, accessible damping gyro wheel prevents initiative gyro wheel free rotation, avoid picking up during the sample, it takes place the initiative closure to draw materials the arm.

Further, in some embodiments of the present invention, the damping roller is circumscribed with the driving roller, and a telescopic damping cap is disposed at a tangent point of the damping roller, and a plurality of damping grooves capable of accommodating the damping cap are circumferentially arrayed on the outer circumferential surface of the driving roller.

The advantages based on the above design are: the damping cap is arranged on the damping roller, and the damping grooves are circumferentially arrayed on the outer circumferential surface of the driving roller, so that the damping cap can be embedded into the damping grooves, and free rotation of the driving roller is limited.

Further, in some embodiments of the present invention, the damping cap includes a spherical cap brim, a guide post and a return spring, a groove is disposed at a tangent point of the damping roller, the guide post is fixed in the groove, and the spring and the cap brim are slidably sleeved on the guide post.

The advantages based on the design are that: the cap brim is sleeved on the guide post in a sliding connection mode, so that when the driving roller is rotated, the driving roller can press the damping cap into the groove, the driving roller can freely rotate under the action of external force, and the spring can eject the damping cap when the damping groove of the driving roller is opposite to the damping cap, so that the damping purpose is achieved.

Further, in some embodiments of the present invention, a thumb wheel is integrally formed on an outer end surface of the driving roller, and a plurality of thumb pieces are circumferentially arrayed on an outer circumferential surface of the thumb wheel.

The advantages based on the above design are: through setting up the thumb wheel fixed with the initiative gyro wheel, set up the plectrum on the thumb wheel to the thumb wheel rotates when conveniently stirring the plectrum, has just also driven the initiative gyro wheel and has rotated, conveniently rotates the swivel subassembly.

Further, in some embodiments of the invention, the hand-held portion is provided with a protective soft sleeve.

The advantages based on the above design are: the protective soft sleeve is convenient for the medical staff to handle and operate.

The embodiment of the invention at least has the following advantages or beneficial effects:

the invention provides a disposable sample recoverer which is used for feeding the recoverer into an affected part from an endoscope biopsy channel, then opening a material taking arm, and enabling an opening part of a material taking basket to be aligned with a sample, so that the sample is picked into the material taking basket and can enter the sample at the next time through an endoscope, and the collection and the picking of the sample are completed for many times, and the disposable sample recoverer is very convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a disposable specimen recoverer according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a disposable specimen retriever according to an embodiment of the present invention;

FIG. 3 is an enlarged view of FIG. 1 at A;

fig. 4 is a cross-sectional view of a damping roller.

Icon: 1-handheld part, 2-connecting part, 201-hollow inner cavity, 3-material drawing part, 31-material drawing arm, 32-material drawing basket, 310-fixed arm, 311-movable arm, 4-first driving wheel, 5-second driving wheel, 6-first pivot, 7-driving belt, 8-second pivot, 9-rotating wheel component, 91-driving roller, 92-damping roller, 910-damping groove, 920-damping cap, 9201-brim, 9202-guide pillar, 9203-return spring, 93-groove, 94-thumb wheel and 940-thumb piece.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1 to 4, the present embodiment provides a disposable sample recoverer, which includes a handheld portion 1, a connecting portion 2 and a material taking portion 3, wherein the connecting portion 2 is connected between the handheld portion 1 and the material taking portion 3, and the material taking portion 3 is provided with a foldable material taking arm 31.

Specifically, the method comprises the following steps:

the hand-held part 1 is integrally formed at the tail end of the connecting part 2, and a protective soft sleeve is sleeved on the hand-held part 1, so that medical personnel can conveniently hold and operate the hand-held part.

The connecting part 2 has a hollow cavity 201, and the material drawing part 3 is disposed at the front end of the connecting part 2. Wherein, the material taking part 3 comprises a material taking arm 31 composed of a fixed arm 310 and a movable arm 311, and a material taking basket 32 is arranged on the material taking arm 31. The fixed arm 310 is integrally formed on an inner wall surface of one side of the hollow cavity 201 of the connecting portion 2, and the movable arm 311 is rotatably connected to an inner wall surface of the other side of the hollow cavity 201 through the first pivot 6, where: here, the first pivot 6 is rotatable, and the movable arm 311 is fixed on the first pivot 6, and the first pivot 6 is not connected to the fixed arm 310. Meanwhile, the movable arm 311 has a right angle bend so that the movable arm 311 and the fixed arm 310 are maintained in the same plane.

The length of the fixed arm 310 and the movable arm 311 is about 3-4cm, the distance between the front ends of the material taking arm 31 and the movable arm 311 in the fully unfolded state is about 3-4cm, and the depth of the material taking basket 32 is 2-3 cm.

In order to realize the free opening and closing of the material-drawing arm 31, a driving member is further installed in the hollow cavity 201 for driving the opening and closing of the movable arm 311.

In detail, the driving member includes a first driving wheel 4, a second driving wheel 5 and a driving belt 7, wherein the first driving wheel 4 is installed between the fixed arm 310 and the movable arm 311, the first driving wheel 4 is fixedly sleeved on the first pivot 6, the second driving wheel 5 is disposed at one end of the hollow cavity 201 far away from the first driving wheel 4 through the pivot, and the driving belt 7 is used for driving and connecting the first driving wheel 4 and the second driving wheel 5. It should be noted that the second pivot 8 is rotatably connected to the connecting portion 2, and the second transmission wheel 5 is fixedly sleeved on the second pivot 8.

Meanwhile, one end of the second pivot 8 penetrates through the connecting part 2 and is fixedly sleeved with a rotating wheel assembly 9 at the end exposed out of the connecting part 2, and the rotating wheel assembly 9 is used for driving the driving part to move.

In detail, the rotating wheel assembly 9 includes a driving roller 91 and a damping roller 92, wherein the driving roller 91 is fixedly sleeved on the end of the second pivot 8, the damping roller 92 is disposed on the outer wall surface of the connecting portion 2 by a fixing shaft, the damping roller 92 is non-rotatable, and the damping roller 92 and the driving roller 91 are circumscribed with each other.

A plurality of damping grooves 910 are circumferentially arrayed on the outer circumferential surface of the driving roller 91, and the damping grooves 910 are formed in an arc shape and smoothly transition with the outer circumferential surface of the driving roller 91. The damping roller 92 is provided with a groove 93 at a position tangent to the driving roller 91, and a telescopic damping cap 920 is installed in the groove 93. In detail, the damping cap 920 includes a spherical cap-shaped brim 9201, a guide post 9202 and a return spring 9203, wherein the guide post 9202 stands upright in the groove 93, the return spring 9203 and the brim 9201 are sequentially sleeved on the guide post 9202, the brim 9201 is limited on the guide post 9202 and can freely slide, and the brim 9201 is matched with the damping groove 910.

Furthermore, the outer end surface of the driving roller 91 is also integrally formed with a dial wheel 94, a plurality of dial pieces 940 are circumferentially arrayed on the outer circumferential surface of the dial wheel 94, and the dial wheel 94 can be conveniently dialed to rotate through the dial pieces 940, so that the driving roller 91 is also dialed to rotate.

As can be seen from the above, the use method or the operation principle of the disposable specimen recoverer provided in this embodiment is as follows:

firstly, the recoverer is stretched into an affected part of the alimentary canal tissue through an endoscope biopsy hole under an endoscope;

then, the thumb wheel 94 is poked in the forward direction, the thumb wheel 94 rotates together with the active roller 91, the active roller 91 rotates to drive the second pivot 8 to rotate, the second driving wheel 5 rotates due to the fact that the second driving wheel 5 and the second pivot 8 are fixedly sleeved, the second driving wheel 5 rotates to drive the first driving wheel 4 to rotate through the driving belt 7, the first driving wheel 4 rotates to drive the first pivot 6 to rotate, the movable arm 311 is fixedly sleeved on the first pivot 6, the first pivot 6 rotates, the material taking basket 32 is opened, the mouth of the material taking basket 32 is aligned with the sample, and the sample is picked into the material taking basket 32.

It should be noted that, during the rotation of the driving roller 91, the damping cap 920 alternately contacts with the damping slot 910 and the outer circumferential surface of the driving roller 91, so as to intermittently and reciprocally pop out of/extend into the groove 93; and after the sampling basket 32 is opened, the driving roller 91 is not rotated any more, at this time, the damping cap 920 is aligned with the damping groove 910 on the outer circumferential surface of the driving roller 91, and then the damping cap 920 is clamped in the damping groove 910 to limit the driving roller 91 to rotate freely, so that the sampling basket 32 is prevented from being closed in the process of picking up the specimen.

Immediately, after the basket 32 of drawing materials is opened, medical personnel can operate the basket 32 of drawing materials under the endoscope and pick up the sample one by one, and is very convenient.

Finally, after the completion of picking up, the thumb wheel 94 is rotated in the reverse direction, and similarly, the movable arm 311 can be closed toward the fixed arm 310, so that the material-taking basket 32 is combined, the material-taking basket 32 can be taken out, and the collection of the specimen is completed.

In summary, when the disposable sample recoverer provided by the invention is used, the recoverer is sent to an affected part from an endoscope biopsy channel, then the material taking arm 31 is opened, the mouth part of the material taking basket 32 is aligned with a sample, so that the sample is picked into the material taking basket 32 and can enter the endoscope next time, and the collection and the picking of multiple samples are completed, which is very convenient.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A disposable sample recoverer is characterized in that: including handheld portion (1), connecting portion (2) and get material portion (3), connecting portion (2) are connected in handheld portion (1) and are got between material portion (3), it is provided with arm (31) of drawing materials to get material portion (3), arm (31) of drawing materials is connected with the driving piece, the driving piece is used for the drive arm (31) of drawing materials opens and shuts, be provided with basket (32) of drawing materials that are used for collecting the sample on arm (31) of drawing materials.

2. The disposable specimen recoverer according to claim 1, wherein the specimen drawing arm (31) comprises a fixed arm (310) and a movable arm (311), the fixed arm (310) is fixed at the front end of the connecting portion (2), and the movable arm (311) is rotatably connected to the front end of the connecting portion (2) through a first pivot (6).

3. The disposable specimen recoverer according to claim 2, wherein the driving member comprises a first driving wheel (4) disposed between the fixed arm (310) and the movable arm (311), the first driving wheel (4) is fixedly sleeved on the first pivot (6), the connecting portion (2) is provided with a hollow inner cavity (201), a second pivot (8) is disposed at an end of the hollow inner cavity (201) far away from the first driving wheel (4), a second driving wheel (5) is fixedly sleeved on the second pivot (8), the first driving wheel (4) is in transmission connection with the second driving wheel (5), the second pivot (8) extends out of the hollow inner cavity (201), and a rotating wheel assembly (9) is disposed at an end of the second pivot (8).

4. The disposable specimen recoverer according to claim 3, wherein the rotating wheel assembly (9) comprises a driving roller (91) fixedly secured to an end of the second pivot (8) and a damping roller (92) disposed alongside the driving roller (91), the damping roller (92) being configured to restrict the driving roller (91) from rotating autonomously.

5. The disposable specimen recoverer according to claim 4, wherein the damping roller (92) is circumscribed with the driving roller (91), a telescopic damping cap (920) is disposed at a tangent point of the damping roller (92), and a plurality of damping grooves (910) capable of accommodating the damping cap (920) are circumferentially arrayed on the outer circumferential surface of the driving roller (91).

6. The disposable specimen recoverer according to claim 5, wherein the damping cap (920) comprises a spherical cap-shaped brim (9201), a guide post (9202) and a return spring (9203), a groove (93) is formed at a tangent point of the damping roller (92), the guide post (9202) is fixed in the groove (93), and the spring and the brim (9201) are slidably sleeved on the guide post (9202).

7. The disposable specimen recoverer according to claim 5, wherein a dial wheel (94) is integrally formed on an outer end surface of the driving roller (91), and a plurality of dials (940) are circumferentially arrayed on an outer circumferential surface of the dial wheel (94).

8. The disposable specimen retriever according to claim 1, wherein the hand-held portion (1) is provided with a protective flexible sleeve.