CN213606550U

CN213606550U - Quick sampling push-cutting pliers

Info

Publication number: CN213606550U
Application number: CN202021100013.3U
Authority: CN
Inventors: 徐浩; 黄希望; 项腾; 李芳柄; 李辰晨; 李雪影; 张子扬; 吴秋菊
Original assignee: Zhejiang Medical Technology Co ltd
Current assignee: Zhejiang Medical Technology Co ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-07-06
Anticipated expiration: 2030-06-15

Abstract

The utility model provides a quick sampling push-cutting forceps with simple structure and quicker and more convenient sampling, which comprises an outer sleeve, a suction pipe and a push-cutting component, wherein the suction pipe and the push-cutting component are arranged through the outer sleeve; the pushing and cutting assembly comprises a pushing and cutting knife and a pushing piece connected with the near end of the pushing and cutting knife, the pushing and cutting knife pivotally penetrates through the outer sleeve, a cutting part is formed at the front end of the outer sleeve, and the pushing piece drives the pushing and cutting knife to move forwards to cut the tissues positioned in the positioning groove in a pushing and cutting mode.

Description

Quick sampling push-cutting pliers

Technical Field

The utility model relates to a medical instrument, concretely relates to quick sample pushes away cuts pincers.

Background

Endoscopy is currently widely used in the clinic as an auxiliary diagnostic method. The sampling forceps enter the body of a patient through the endoscopic forceps channel to clamp the tissues of the lesion part, and then the clamped tissues are subjected to pathological analysis to confirm the disease. Endoscopic biopsy sampling has become a routine endoscopic examination procedure because of its low trauma and ease of examination. Present sampling forceps sampling technique is comparatively mature, nevertheless behind seeing the tissue that needs the sample, because the closure of head end for the sampling process is consuming time more, needs many times to pincers get just can pincers get the tissue of needs, simultaneously because many times pincers get the risk that the existence probably causes the damage of other tissue vessels, influences sampling efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a quick sampling push-cutting forceps with simple structure and quicker and more convenient sampling, which comprises an outer sleeve, a suction pipe and a push-cutting component, wherein the suction pipe and the push-cutting component are arranged through the outer sleeve;

the pushing and cutting assembly comprises a pushing and cutting knife and a pushing piece connected with the near end of the pushing and cutting knife, the pushing and cutting knife penetrates through the outer sleeve, a cutting part is formed at the front end of the outer sleeve, and the pushing piece drives the pushing and cutting knife to move forwards to cut the tissues positioned in the positioning groove in a pushing and cutting mode.

Preferably, the front end of the outer sleeve extends forwards to form a positioning wall, the front end of the positioning wall forms an inward-bent hook part, and the positioning wall and the hook part form a positioning groove with an opening facing one side.

Preferably, the pushing and cutting knife is positioned on one side of the opening of the positioning groove, and the front end of the pushing and cutting knife can be abutted against the hook part.

Preferably, the suction pipe is integrally connected with the push-cutting assembly, an elastic reset piece is arranged among the suction pipe, the push-cutting assembly and the outer sleeve, the push-cutting knife has a cutting state and a withdrawing state, and in the cutting state, the push-cutting knife moves towards the hook part to cut; when in a retreating state, the push cutter is far away from the positioning groove; the elastic reset piece drives the push cutter to reset from a cutting state to a withdrawing state.

Preferably, the suction tube and the pushing and cutting piece are sleeved with a spring piece at the part of the outer sleeve.

Preferably, the cutting portion forms an inclined cutting surface.

Preferably, the proximal end of the pusher member is provided with a luer handpiece in communication with the suction tube.

Compared with the existing mode of taking tissues by multiple forceps, the sampling forceps provided by the utility model mainly adopts the mode of pushing and pulling the sampling forceps, so that the operation is more convenient;

after the sample is taken, the biopsy forceps do not need to be completely taken out, the needed tissue can be directly obtained through the negative pressure suction device, the speed is higher, and the pollution-free tissue is also ensured.

Drawings

Fig. 1 and fig. 2 are a schematic structural view and a cross-sectional view of a rapid sampling push-cutting forceps provided by the present invention;

FIG. 3 is an enlarged schematic view of the front end portion of FIG. 2;

fig. 4 is a schematic view of the use process of the rapid sampling push-cutting forceps provided by the present invention.

Detailed Description

The technical solution of the present invention or utility model will be further specifically described below by means of specific embodiments and with reference to the drawings of the specification;

in the description of the present invention, it is to be understood that the terms "inner", "outer", "front", "back", "proximal" and "distal" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1, 2 and 3, the embodiment of the present invention provides a quick sampling push-cutting forceps with simple structure and faster and more convenient sampling, specifically, the push-cutting forceps includes an outer sleeve 2, and a suction tube 7 and a push-cutting assembly which are arranged through the outer sleeve 2, one end of the suction tube 7 protrudes from the outer sleeve 2, the other end forms a suction connector 5-1 for connecting with a suction device, the distal end of the outer sleeve 3 is provided with a positioning groove 1 for positioning a tissue to be cut, and the positioning groove 1 is communicated with the suction tube;

the push-cutting assembly comprises a push-cutting knife 6 and a pushing piece 5 connected with the near end of the push-cutting knife 6, the push-cutting knife 6 penetrates through the outer sleeve 3 in a pivot mode, a cutting part 61 is formed at the front end of the push-cutting knife 6, and the pushing piece 5 drives the push-cutting knife 6 to move forwards so as to cut the tissues positioned in the positioning groove 1 in a push-cutting mode.

Compared with the existing sampling forceps which can clamp tissues and need an angle limitation, the push-cutting mode of the sampling forceps provided by the utility model does not need to carry out any angle, positions the tissues to be cut at present to avoid displacement and inaccurate cutting, further pushes and cuts the tissues in a push-cutting mode, is simple and convenient to operate, and is quick and effective; and through communicating constant head tank and suction tube, directly pump the tissue that cuts off in the constant head tank to the outside, further simplified present sample flow.

In this embodiment, the front end of the outer sleeve extends forward to form a positioning wall 11, the front end of the positioning wall 11 forms an inwardly bent hook 12, and the positioning wall 11 and the hook 12 form a positioning slot 1 which is open towards one side; the enclosed space is used as a positioning groove, so that the positioning effect is good, and the tissues are not easy to shift; more specifically, the cutting part forms an inclined cutting surface 61, and the cutting effect is good.

As a better embodiment, the pushing and cutting knife 6 is positioned at one side of the opening of the positioning groove 1, and the front end of the pushing and cutting knife 6 can be abutted against the hook portion 12, and the cutting knife 6 and the hook portion 12 are matched to play a role in blocking the cut tissue, so that the cut tissue is not easy to leak out of the positioning groove and is smoothly pumped out through the negative pressure suction device and the suction tube.

In some preferred embodiments, in order to ensure that the cutting knife 6 can automatically rebound to facilitate the next cutting operation, the push-cutting knife may be configured as a push-cutting knife with an automatic rebound function, and the structure capable of achieving this function is more, in this embodiment, the suction tube is integrally connected with the push-cutting assembly, an elastic reset piece 3 is disposed between the suction tube, the push-cutting assembly and the outer sleeve, the push-cutting knife 6 has a cutting state and a retraction state, and in the cutting state, the push-cutting knife 6 moves towards the hook portion 12 to perform cutting; in the retreating state, the pushing cutter 6 is far away from the positioning groove 1; the elastic reset piece drives the push cutter to reset from a cutting state to a retraction state; specifically, the spring part 3 is sleeved on the parts of the suction pipe and the push-cutting part, which are positioned on the outer sleeve; thus, the suction pipe and the pushing and cutting knife can automatically advance or retreat together,

specifically, the proximal end of the pushing piece 5 is provided with a luer handpiece 5-1 communicated with a suction tube, more specifically, the pushing piece 5 is arranged to extend through the outer sleeve 2 along the distal end of the pushing cutter, and the distal end of the pushing piece forms a pushing seat.

As shown in fig. 3, the sampling process of the sampling forceps provided by the present embodiment is as follows:

step 1) firstly, positioning a tissue 10 to be cut in an open positioning groove, so that a cutter can accurately cut the tissue;

step 2) pushing the cutter to move towards the tissue 10 by a pushing piece, and pushing a cutting surface at the front end of the cutter to cut the tissue in a pushing and cutting mode;

and 3) as shown in fig. 3, until the cutting part of the push-cutting knife is abutted against the hook part, completely cutting and peeling the original tissue, then opening the negative pressure suction device, and sucking the cut tissue out of the body through a suction tube communicated with the positioning groove.

So, through simple forward promotion, the tissue under the fly-cutting, the tissue drops like the inside passage of sampling forceps, then removes the tissue that needs from the inside passage of sampling forceps fast through lasting suction device.

Claims

1. The push-cutting forceps for rapid sampling are characterized by comprising an outer sleeve (2), a suction pipe (7) and a push-cutting assembly, wherein the suction pipe (7) and the push-cutting assembly are arranged through the outer sleeve, one end of the suction pipe (7) protrudes out of the outer sleeve and is provided with a suction joint (5-1) used for being connected with a suction device, and the far end of the outer sleeve (2) is provided with a positioning groove (1) used for positioning tissues to be cut and communicated with the suction pipe (7);

the push-cutting assembly comprises a push-cutting knife (6) and a pushing piece (5) connected with the near end of the push-cutting knife (6), the push-cutting knife (6) penetrates through the outer sleeve (2) and a cutting part (61) is formed at the front end of the push-cutting knife, and the pushing piece drives the push-cutting knife to move forwards to cut the tissues positioned in the positioning groove (1) in a push-cutting mode.

2. The rapid sampling push-cutting forceps according to claim 1, characterized in that the front end of the outer sleeve extends forward to form a positioning wall (11), the front end of the positioning wall forms an inward bent hook (12), and the positioning wall and the hook form a positioning groove (1) which is open towards one side.

3. The rapid sampling push-cutting forceps according to claim 2, wherein the push-cutting blade is positioned at the open side of the positioning groove and the front end of the push-cutting blade can abut against the hook portion.

4. The rapid sampling push-cutting forceps according to claim 2, wherein the suction tube is integrally connected with the push-cutting assembly, an elastic reset piece is arranged between the suction tube, the push-cutting assembly and the outer sleeve, the push-cutting knife has a cutting state and a retraction state, and in the cutting state, the push-cutting knife moves towards the hook part to cut; when in a retreating state, the push cutter is far away from the positioning groove; the elastic reset piece drives the push cutter to reset from a cutting state to a withdrawing state.

5. The rapid sampling push-cutting pliers according to claim 4, wherein the parts of the suction tube and the push-cutting element located on the outer sleeve are sleeved with spring elements (3).

6. The rapid sampling push-cut forceps of claim 5 wherein the cutting portion defines an angled cutting surface.

7. The rapid sampling push-cut forceps of claim 5 wherein the proximal end of the pusher member is provided with a luer handpiece in communication with the suction tube.