CN214511219U

CN214511219U - Disposable endoscope sampling needle

Info

Publication number: CN214511219U
Application number: CN202022947605.5U
Authority: CN
Inventors: 易新; 仲伯进; 郑伟; 戴政国
Original assignee: Suzhou Lung Care Medical Technologies Co ltd
Current assignee: Suzhou Lung Care Medical Technologies Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-10-29
Anticipated expiration: 2030-12-11

Abstract

The utility model discloses a disposable endoscope sampling needle, which comprises a rear handle, a front handle, a clamp and a needle head connected with the rear handle; one end of the fixture is connected with an outer sheath tube, and one end of the front handle is connected with a guide head; the guide head is inserted into the outer sheath tube, the guide head is hemispherical, and an opening is arranged at the central position; the needle is inserted into the introducer head and is capable of passing through the introducer head and the sheath. The utility model discloses under the condition of carrying out the aspiration biopsy high-efficient, safe, can also combine electromagnetic navigation technique, accurate focus position that reaches that can be quick, and then shorten the operation time greatly, improve the operation precision, reduce the intraoperative complication by a wide margin.

Description

Disposable endoscope sampling needle

Technical Field

The utility model belongs to operation sample field, concretely relates to novel disposable endoscope sample needle.

Background

A biopsy sampling needle is a medical instrument used for sampling living tissues of pyramidal tumors, unknown tumors and the like of various organs such as kidney, liver, lung, mammary gland, thyroid gland, prostate, pancreas, testis, uterus, ovary, body surface and the like, sucking cells and the like.

Currently, when there is a lesion in the periphery of the lung, and the lesion is not in the bronchus, a needle biopsy is generally performed using a biopsy needle. The conventional biopsy sampling needle generally confirms whether the biopsy sampling needle reaches a focus position through bronchoscope guidance, and the conventional biopsy sampling needle can only be used for simple puncture suction during the use process and cannot completely reach the accurate focus position. The technology has the following defects that the endoscope is used for guiding in the first whole process, and the puncture can be performed only after repeated confirmation of a doctor, so that the operation time of a patient and the workload of the doctor are greatly increased; in the second complicated position, a doctor is difficult to accurately arrive at one time, the focus position outside a part of bronchus often cannot be reached after repeating for many times, the operation time is often very long, and the operation risk is increased.

As shown in figure 1, the sampling needle which is conventionally used has the front end extending out of the needle head to directly puncture, can not reach peripheral lesions to carry out biopsy, and can not establish a channel to carry out other instrument inspection and confirmation. Therefore, the sampling needle used conventionally at present can only solve the central focus of the lung, and the biopsy sampling can not be carried out on the peripheral lesion. And the success rate of needle aspiration biopsy is not high when the focus is very small and deep.

In addition, utility model patent 201910990182.4 in the prior art discloses a bronchial puncture wall breaking device, which comprises an outer sheath tube; the head of the seeker is in a pointed cone shape; a puncture needle. The invention adopts a sharp cone-shaped guide head, thereby reducing the risk of puncturing blood vessels during sampling.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a disposable endoscope sampling needle, it is high-efficient, safe under the condition of carrying out the puncture biopsy, can also combine electromagnetic navigation technique, can be fast accurate reach accurate focus position, and then shorten the operation time greatly, improve the operation precision, reduce the intraoperative complication by a wide margin.

In order to achieve the purpose, the utility model provides a disposable endoscope sampling needle, which comprises a rear handle, a front handle, a clamp and a needle head connected with the rear handle; one end of the fixture is connected with an outer sheath tube, and one end of the front handle is connected with a guide head; the guide head is inserted into the outer sheath tube, the guide head is hemispherical, and an opening is arranged at the central position; the needle is inserted into the introducer head and is capable of passing through the introducer head and the sheath.

Furthermore, a channel is arranged in the middle of the clamp and is communicated with the channel of the outer sheath tube; the guide head is inserted into the sheath tube through the channel of the fixture.

Furthermore, a channel is arranged in the middle of the front handle and communicated with the channel of the guide head; the needle is inserted into the introducer through the passageway of the front handle.

Further, the fixture is used for clamping the front handle.

Further, a guide head on the front handle contacts the lesion under guidance of magnetic navigation.

Further, the jig is designed such that the retracted front handle can be released by pushing the rear end of the jig forward, and the front handle can be locked by pulling the rear end of the jig backward.

The utility model provides a pair of disposable endoscope sampling needle has following beneficial effect:

1. the utility model discloses a tip of disposable endoscope sampling needle adds has circular seeker, and the cooperation fine needle carries out the broken wall, and injury and the peripheral focus broken wall that can effectual reduction puncture brought back syringe needle probably punctures vascular risk (protection on the structural design).

2. The utility model discloses a disposable endoscope sampling needle can reach the periphery focus when using structurally and can establish the outer sheath pipe as the inspection passageway under the seeker cooperation of head end design.

Drawings

Fig. 1 is a schematic structural view of a conventional sampling needle in the prior art.

Fig. 2 is a schematic structural view of a disposable endoscope sampling needle of the present invention.

Fig. 3 is a partially enlarged view at I in fig. 2.

Fig. 4 is a schematic structural view illustrating that the needle of the sampling needle of the disposable endoscope of the present invention is inserted into a lesion.

Fig. 5 is a schematic structural view of the disposable endoscope sampling needle of the present invention inserted into the lesion as a whole.

Fig. 6 is a schematic structural view of the disposable endoscope sampling needle of the present invention after the rear handle and the front handle are taken out.

In the figure:

1. a rear handle; 2. a front handle; 3. a fixture; 4. a needle head; 5. an outer sheath tube; 6. a seeker.

Detailed Description

In order to make the technical field better understand the solution of the present invention, the present invention will be further described in detail with reference to the following embodiments.

As shown in fig. 2-6, the utility model discloses a disposable endoscope sampling needle, which comprises a rear handle 1, a front handle 2, a fixture 3 and a needle head 4.

The front end of the rear handle 1 is directly inserted into the rear end of the front handle 2, and the front end of the front handle 2 may be directly inserted into the rear end of the chucking tool 3.

One end of the fixture 3 is connected with an outer sheath tube 5, and a channel is arranged in the middle of the fixture 3 and is communicated with the channel of the outer sheath tube 5.

A guide head 6 is connected to one end of the front handle 2, and the guide head 6 can be inserted into the outer sheath tube 5 through one end of the clip 3 and can move in the axial direction of the outer sheath tube 5. This guide head 6's shape is the hemisphere and central point puts and is provided with the opening, and then when contacting the periphery focus, can reduce the risk that the pjncture needle syringe needle punctures blood vessel, improves the location precision.

The fixture 3 is designed such that the front handle 2 can be released by pushing the rear end of the fixture 3 forward, and the front handle 2 can be locked by pulling the rear end of the fixture 3 backward.

The middle of the front handle 2 is provided with a channel which is communicated with the channel of the guide head 6.

One end of the rear handle 1 is connected with a needle 4, and the needle 4 can be inserted into a guide head 6 of the front handle 2 through one end of the front handle 2 and can move along the axial direction of the guide head 6.

Through the connection mode, the guide head 6 is sleeved in the outer sheath tube 5, and the needle head 4 is sleeved in the guide head 6. The front handle 2 and the rear handle 1 are arranged to enable a user to control the rear handle 1 and the front handle 2 to further achieve axial movement of the needle head 4 and the guide head 6 along the sheath tube 5 under the guide of magnetic navigation, namely, the rear handle 1 is pushed forwards to enable the needle head to extend out of the sheath tube 5, the front handle 2 is pushed forwards to enable the guide head to extend out of the sheath tube 5, and then the needle head reaches peripheral lesion which is difficult to reach by a conventional sampling needle.

The utility model discloses a disposable endoscope sampling needle is when using, the operating procedure as follows:

1. the whole sampling needle is close to the position of a focus under the guidance of magnetic navigation;

2. the front handle 2 is pushed forwards, so that the guide head 6 on the front handle 2 is in contact with a focus under the guidance of magnetic navigation for accurately positioning the focus position, and the guide head 6 of the front handle 2 is fixed by the fixture 3, and the focus can be positioned while being in contact with the focus due to the fact that the guide head 6 is spherical;

3. pushing the rear handle 1 forward so that the needle 4 on the rear handle 1 reaches the opening of the guide head 6 and pierces the lesion where the guide head 6 is located, as shown in fig. 4;

4. pushing the whole single-use endoscope sampling needle so that the guide head 6 and the sheath tube 5 are both inserted into the lesion, as shown in fig. 5;

5. the front handle 2 and the rear handle 1 are withdrawn and the outer sheath 5 is left to establish an inspection passage for subsequent inspection operations and the like, as shown in fig. 6.

The inventive concept is explained in detail herein using specific examples, and the above description of the embodiments is only used to help understand the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. A disposable endoscope sampling needle comprises a rear handle, a front handle, a clamp and a needle head connected with the rear handle; one end of the fixture is connected with an outer sheath tube, and one end of the front handle is connected with a guide head; the guide head is inserted into the sheath tube, and is characterized in that the guide head is hemispherical and is provided with an opening at the central position; the needle is inserted into the guide head and is capable of passing through the guide head and the sheath.

2. The single use endoscope sampling needle of claim 1, wherein the middle of the clip is provided with a channel which is communicated with the channel of the sheath tube; the guide head is inserted into the sheath tube through the channel of the fixture.

3. The single use endoscope sampling needle of claim 1 wherein the middle of the front handle is provided with a channel that communicates with the channel of the guide head; the needle is inserted into the introducer through the passageway of the front handle.

4. A single use endoscopic sampling needle according to claim 1 wherein said clip is adapted to capture said front handle.

5. The single use endoscopic sampling needle of claim 1 wherein a guide head on the front handle contacts the lesion under guidance of magnetic navigation.

6. A single use endoscopic sampling needle according to claim 1 wherein the clip is designed to release the retracted front handle by pushing forward on the back end of the clip, and the back end of the clip is pulled back to lock the front handle.