CN112274191B

CN112274191B - Device for preventing needle track planting transfer

Info

Publication number: CN112274191B
Application number: CN202011182046.1A
Authority: CN
Inventors: 田帅; 欧阳汉强; 袁慧书
Original assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Current assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-09-21
Anticipated expiration: 2040-10-29
Also published as: CN112274191A

Abstract

The invention relates to a device for preventing the transfer of needle tract implantation, which comprises a casing and a puncture needle. The casing is used to insert the needle layer by layer along a predetermined puncture path in the normal bone tissue of a patient until reaching the edge of the lesion; the puncture needle The needle is inserted into the casing, and the top of the puncture needle can pass out of the top of the casing and enter the tumor tissue for needle biopsy. The needle brings out the diseased tissue obtained by taking the material; the casing is further used to prevent the puncture needle from contacting the non-tumor tissue during the process of pulling out the puncture needle. Because the device is in the shell throughout the contact with the non-tumor tissue, and the puncture needle in contact with the tumor tissue is located in the shell throughout the entire process, it can fundamentally prevent needle tract transfer in the puncture biopsy.

Description

Device for preventing needle track planting transfer

Technical Field

The invention relates to the technical field of clinical medical treatment, in particular to a device for preventing needle track planting transfer.

Background

The puncture biopsy is a main method for obtaining pathological diagnosis of tissues from bone and soft tissue tumors, belongs to pathological examination, is a gold standard for diagnosing benign and malignant tumors and specific pathological types of tumors, is a necessary diagnosis step which is not enough before the tumors are treated, and is relatively safe.

Generally, in the percutaneous aspiration biopsy under the guidance of CT, a puncture point is selected on the skin of a diseased region through preoperative planning of an image, disinfection and local anesthesia are performed conventionally, an 11G bone biopsy needle is used for puncturing the lesion point layer by layer in the shortest and safest path, and then the puncture is completed after the bone biopsy needle is used for obtaining diseased tissues from a material obtaining device.

The needle channel implantation metastasis refers to percutaneous needle biopsy of tumors under the guidance of images, and tumor cells remain on a puncture needle channel when a puncture needle is pulled out, so that the metastasis develops in situ on the needle channel.

Although the possibility of needle-track implantation metastasis of tumors is very low, the probability of needle-track implantation metastasis in needle biopsy is reported to be 0.061% -0.56%.

The main reason why needle track implantation metastasis of tumor occurs in the percutaneous needle biopsy of bone tumor under CT guidance is that, in order to obtain higher biopsy positive rate, or because some bone tumors are osteogenic and hard, and materials cannot be obtained by a common biopsy gun, the bone biopsy needle still needs to be used to penetrate into the lesion, so there may be residual tumor cells outside the cannula of the bone biopsy needle, although the tumor tissue obtained by the biopsy gun is taken out of the body through the channel formed by the cannula, when the cannula is pulled out, there may be residual tumor cells outside the cannula and implanted around the needle track, and if the patient's own immune system fails to timely identify and remove the residual tumor cells in the needle track, there is a high possibility that needle track implantation metastasis may occur.

Disclosure of Invention

The invention aims to provide a novel CT-guided device for preventing needle track implantation metastasis of bone tumor puncture biopsy, so as to solve the problem of needle track implantation metastasis of percutaneous puncture biopsy equipment.

The invention aims to solve the defects of the prior art and provides a novel CT-guided bone tumor puncture biopsy device for preventing needle track implantation metastasis, which comprises a shell and a puncture needle, wherein the shell is used for performing needle insertion layer by layer in normal bone tissues of a patient along a preset puncture path until reaching a lesion edge; the puncture needle is inserted into the shell, the top end of the puncture needle can penetrate out of the top end of the shell and enter tumor tissues for puncture biopsy sampling, and lesion tissues obtained by sampling are taken out by the puncture needle in the process of pulling out the puncture needle after the sampling is finished; the housing is further adapted to prevent the needle from contacting non-tumor tissue during withdrawal of the needle.

The shell comprises a shell barrel and a shell flange fixedly arranged at the tail end of the shell barrel; the puncture needle is inserted into the shell cavity through the shell cavity opening.

The shell cavity is also internally provided with a needle core, and the puncture needle can be inserted into the shell cavity only by pulling out the needle core.

The puncture needle comprises a needle body and a puncture needle flange fixedly arranged at the end part of the tail end of the needle body, and a material taking device for taking lesion tissues is arranged on the puncture needle.

Preferably, the peripheral wall of the needle body is provided with a plurality of scales distributed along the axial direction of the needle body, and the scales are used for indicating the needle insertion depth.

In a preferred embodiment, when the 0 graduation line on the outer circumferential wall of the needle body just disappears during the process of inserting the puncture needle into the housing cavity, the needle point of the puncture needle is aligned with the tip position of the top end of the housing.

Preferably, the housing and the puncture needle are connected by a spiral hinge or a snap.

Further preferably, in the process that the puncture needle is inserted into the housing cavity, when the needle point position of the puncture needle is flush with the tip position of the top end of the housing, the puncture needle advances in a rotating mode to continue to complete puncture on the premise that the housing is not moved.

Further preferably, the puncture needle is further provided with a handle for driving the puncture needle to advance in a manner similar to a manual drill bit.

Advantageous effects

Compared with the prior art, the invention has the beneficial effects that:

the device for preventing needle channel implantation metastasis changes the traditional bone biopsy needle into a shell and a puncture needle, wherein the shell stops outside lesion in the needle inserting process, the puncture biopsy material taking work is continuously completed through the puncture needle in the shell, instruments passing through tumors in the whole process are operated in the shell, and the part contacted with the non-tumor part is only the shell of the novel bone biopsy needle described in the patent, so the device for preventing needle channel implantation metastasis can fundamentally prevent the occurrence of needle channel metastasis in the puncture biopsy theoretically.

The device for preventing needle channel planting metastasis can be popularized and applied to percutaneous aspiration biopsy of bones of all parts of the whole body, including spines, long bones of four limbs, short bones, trunk flat bones and the like, and can also fundamentally prevent the occurrence of tumor needle channel planting metastasis.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a schematic structural view of the housing of the present invention.

Fig. 2 is a schematic view of the structure of the puncture needle of the present invention.

Fig. 3 is a schematic view of the overall structure of the device for preventing needle track planting transfer according to the invention.

Detailed Description

The present invention is described in more detail below to facilitate an understanding of the present invention.

As shown in figures 1 to 3, the device for preventing needle track implantation transfer of the invention comprises a shell 1 and a puncture needle 4, wherein the shell 1 is used for carrying out layer-by-layer needle insertion in normal bone tissues of a patient along a preset puncture path until reaching a lesion edge; the puncture needle is inserted into the shell, the top end of the puncture needle can penetrate out of the top end of the shell and enter tumor tissues for puncture biopsy sampling, and lesion tissues obtained by sampling are taken out by the puncture needle in the process of pulling out the puncture needle after the sampling is finished; the housing is further adapted to prevent the needle from contacting non-tumor tissue during withdrawal of the needle.

As shown in fig. 1, the housing 1 includes a housing barrel 2 and a housing flange 3 fixedly disposed at the end of the rear end of the housing barrel; the puncture needle is inserted into the shell cavity through the shell cavity opening.

The needle core is arranged in the shell cavity and used for supporting the shell cavity and preventing human tissues from entering the shell cavity when the shell carries out layer-by-layer needle insertion in normal bone tissues of a patient along a preset puncture path. Insertion of the puncture needle into the housing cavity can only be performed by pulling out the core.

As shown in fig. 2, the puncture needle 4 comprises a needle body 5 and a puncture needle flange 6 fixedly arranged at the tail end part of the needle body, and a material taking device for taking lesion tissues is arranged on the puncture needle.

Fig. 2 schematically shows 6 scale values of 0, 1, 2, 3, 4, 5cm, with adjacent scales spaced 1cm apart. As will be appreciated by those skilled in the art, the specific graduation value can be determined by preoperatively establishing the length of the biopsy taken based on the size of the lesion.

Preferably, the housing 1 and the needle 4 can be connected in a variety of ways, such as by a screw hinge or snap connection. The spiral hinge connection mode is that the needle core is removed from the shell 1, the puncture needle 4 is directly inserted into the shell, the tip end and the parallel and level are ensured, the two components are combined to form an integral component, the interior of the integral component is connected through a thread surface, and the mode of driving the puncture needle forwards is precession. The buckle connected mode does, and the nook closing member is got rid of to shell 1, directly inserts pjncture needle 4 in the shell to guarantee most advanced parallel and level, in order to fix the pjncture needle, set up the buckle in shell oral level (0 scale mark level of pjncture needle promptly), guarantee the two and do not take place relative displacement, when reaching the pathological change edge, open buckle device, further drive pjncture needle forward.

Further preferably, in the process of inserting the puncture needle into the housing cavity, when the needle point position of the puncture needle is flush with the tip position of the top end of the housing, on the premise of ensuring that the housing is not moved, the puncture needle can advance in various ways to continue to complete puncture, for example, the puncture needle can additionally advance with a handle in a rotating way, similar to a manual drill.

Fig. 3 shows a state in which the housing 1 and the puncture needle 4 are combined.

When the device for preventing the needle track planting transfer is used, the device comprises the following steps:

firstly, using a shell 1 to perform layer-by-layer needle insertion in normal bone tissues of a patient along a preset puncture path, and stopping operation when reaching the edge of a pathological change;

secondly, pulling out a needle core of the shell, inserting the puncture needle 4 into the shell until the scale mark 0 of the puncture needle just disappears, and enabling the needle point position of the puncture needle to be flush with the tip position of the shell;

thirdly, setting the sampling length of the puncture biopsy according to the size of the focus before the operation, and slowly entering the puncture needle until the puncture biopsy is satisfied;

fourthly, taking materials;

finally, the position of the shell is kept unchanged, the puncture needle is pulled out, the shell is directly pulled out without inserting the needle core of the shell back, the wound is disinfected and bandaged, and the operation is finished.

The device for preventing needle channel implantation metastasis is a novel bone biopsy needle, and the whole process of contact with non-tumor tissues is a shell, while the whole process of contact with tumor tissues is a puncture needle positioned in the shell, so the device for preventing needle channel implantation metastasis can fundamentally prevent needle channel metastasis in puncture biopsy, and reduce the incidence rate to 0.

The foregoing describes preferred embodiments of the present invention, but is not intended to limit the invention thereto. Modifications and variations of the embodiments disclosed herein may be made by those skilled in the art without departing from the scope and spirit of the invention.

Claims

1. The device for preventing needle track implantation transfer is characterized by comprising a shell and a puncture needle, wherein the shell is used for carrying out layer-by-layer needle insertion in normal bone tissues of a patient along a preset puncture path until a lesion edge is reached; the puncture needle is inserted into the shell, the top end of the puncture needle can penetrate out of the top end of the shell and enter tumor tissues for puncture biopsy sampling, and lesion tissues obtained by sampling are taken out by the puncture needle in the process of pulling out the puncture needle after the sampling is finished; the shell is further used for avoiding the puncture needle from contacting with non-tumor tissues in the process of pulling out the puncture needle; in the process of inserting the puncture needle into the shell cavity, when the 0 scale mark on the peripheral wall of the needle body just disappears, the needle point position of the puncture needle is flush with the tip position of the top end of the shell;

the shell is connected with the puncture needle through a spiral hinge or a buckle;

the outer peripheral wall of the needle body is provided with a plurality of scales distributed along the axial direction of the needle body, and the scales are used for indicating the depth of needle insertion;

in the process of inserting the puncture needle into the shell cavity, when the needle point position of the puncture needle is flush with the tip position of the top end of the shell, the puncture needle advances in a rotating mode to continuously complete puncture on the premise of ensuring the shell to be motionless;

the puncture needle is also provided with a handle which is used for driving the puncture needle to rotate and advance in a manner similar to a manual drill bit;

2. The apparatus for preventing needle track planting transfer as claimed in claim 1, wherein the housing comprises a housing tube and a housing flange fixedly disposed at a trailing end of the housing tube; the puncture needle is inserted into the shell cavity through the shell cavity opening.

3. The device for preventing needle track planting transfer as claimed in claim 2, wherein a needle core is further disposed in the housing cavity, and the needle core is pulled out to insert the puncture needle into the housing cavity.