CN219332982U

CN219332982U - A insert and plant navigation head for cervical cancer treatment

Info

Publication number: CN219332982U
Application number: CN202320382426.2U
Authority: CN
Inventors: 吴树强; 张宏宇
Original assignee: Shenzhen Ralvin Bioengineering Technology Co ltd
Current assignee: Shenzhen Ralvin Bioengineering Technology Co ltd
Priority date: 2023-03-03
Filing date: 2023-03-03
Publication date: 2023-07-14
Anticipated expiration: 2033-03-03

Abstract

The utility model discloses an insertion navigation device for cervical cancer treatment, which comprises an external component and an internal component; the outer assembly comprises a sleeve and a fixing hoop, and the sleeve main body is cylindrical; the inner assembly comprises a plurality of insertion guide pipes which are in close contact with each other and can slide relatively freely for interpolation positioning, the end faces of the insertion guide pipes, which are far away from one end of the fixing hoop, can form individual interpolation positioning faces according to different focus forms, and the length of the insertion guide pipes is larger than that of the outer assembly. The cervical cancer implantation navigation device provided by the utility model is conformal with a tumor during interpolation, each interpolation catheter is in direct contact with the surface of the tumor, the interpolation depth is easy to determine, the implantation efficiency is improved, the difficulty is low, the feasibility is strong, and the pain degree of a patient is low.

Description

A insert and plant navigation head for cervical cancer treatment

Technical Field

The utility model relates to the field of radiotherapy auxiliary instruments, in particular to an insertion navigation device for cervical cancer treatment.

Background

Brachytherapy, also known as endo-radiation, is performed by precisely fitting the source channel to the cancerous tumor area prior to delivery, and then allowing the radiation source to enter the body for treatment. The brachytherapy is characterized in that: the intensity of the radiation drops sharply with distance and the irradiation affects only a very limited area around the source. The implantation treatment is a treatment method that an implantation channel is arranged in a tumor by using an interpolation needle, so that the radiation dose of tumor tissues can be further improved, and the irradiated dose of normal tissues can be reduced. Therefore, the short-distance implantation treatment is increasingly widely applied to clinical application in recent years.

Cervical cancer is one of the most common malignant tumors in gynecology, and the treatment means of cervical cancer mainly adopts radiotherapy and surgery and is assisted by chemotherapy. The radiotherapy method is a method combining in-vitro radiotherapy, cavity radiotherapy and tissue-interposed radiotherapy. However, the arrangement of the implantation channels is required to be both conformal to the tumor and uniformly distributed in the implantation treatment, so that the requirement on the professional level of clinical operators is high.

However, since the tumor is located in the body and invisible to naked eyes, and the surface of the tumor is uneven, when the prior art arranges the radioactive source in the tumor through the cervical cancer inserting navigation device, the cervical cancer inserting navigation device only reaches the highest point of the tumor, and other lower positions are difficult to reach, so that the interpolation depth of the interpolation needle is not easy to control, a doctor is required to observe by means of images for many times, the interpolation needle cannot be accurately and effectively inserted in the tumor to form uniform and comprehensive coverage, time is wasted, the efficiency is low, and the pain degree of a patient is high.

Disclosure of Invention

The cervical cancer insertion navigation device in the prior art can only reach the position of the highest point of the tumor, cannot conform to the tumor, and is insufficient in contact with the surface of the tumor, so that the interpolation depth is not easy to control, a doctor is required to observe by means of images for many times, an interpolation needle cannot be accurately and effectively inserted into the tumor during interpolation operation, the efficiency is low, the difficulty is high, and the pain degree of a patient is high.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows:

an insertion navigation device for cervical cancer treatment comprises an external component and an internal component; the outer assembly comprises a sleeve and a fixing hoop, and the sleeve main body is cylindrical; the inner assembly comprises a plurality of insertion guide pipes which are in close contact with each other and can slide relatively freely for interpolation positioning, the end faces of the insertion guide pipes, which are far away from one end of the fixing hoop, can form individual interpolation positioning faces according to different focus forms, and the length of the insertion guide pipes is larger than that of the outer assembly.

Further, the axial direction of the contact surface between the adjacent inserted guide pipes and the axial direction of the contact surface between the inserted guide pipe and the sleeve are provided with clamping pieces and clamping grooves which are mutually matched, and the mutually matched clamping pieces and clamping grooves are used for limiting the sliding direction of the inserted guide pipe.

Further, in a free state, one end of the plurality of implanted catheters, which is far away from the fixed hoop, is integrally arc-shaped.

Further, the fixing hoop is fixedly connected with the sleeve.

Further, the size of the fixing hoop is the same as that of the sleeve, an opening is formed in the fixing hoop, and fixing components are arranged at two ends of the opening.

Compared with the prior art, the insertion navigation device for cervical cancer treatment has the following beneficial effects:

according to the insertion navigation device for cervical cancer treatment, the insertion guide pipes which are in close contact with each other and can slide relatively freely are arranged, so that the contact surface of the insertion guide pipe and a tumor can form an individual interpolation positioning surface according to the surface morphology of the tumor, the contact surface is conformal with the tumor, each interpolation guide pipe is in direct contact with the surface of the tumor, the interpolation depth is easy to control during interpolation, the insertion efficiency is improved, the difficulty is low, the practicability is high, and the pain degree of a patient is reduced.

Drawings

Fig. 1 is a schematic structural diagram of an insertion navigation device for cervical cancer treatment according to an embodiment of the present utility model in a free state;

fig. 2 is a schematic view of another angle structure of the insertion navigation device for cervical cancer treatment according to the embodiment of the present utility model in a free state;

FIG. 3 is a schematic plan view of the end of the insertion navigation device for cervical cancer treatment of FIG. 1, which is close to the fixing hoop;

fig. 4 is a schematic structural diagram of an insertion navigation device for cervical cancer treatment according to an embodiment of the present utility model in a working state;

the main reference numerals illustrate:

1-a sleeve; 11-a securing cuff; 12-a fixed assembly; 13-a connector; 2-inserting a catheter; 21-a clamping piece; 22-clamping groove.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, integrally connected, or detachably connected; may be a communication between the interiors of two elements; may be directly or indirectly through an intermediate medium, and the specific meaning of the terms in the present utility model will be understood by those skilled in the art in specific cases.

Referring to fig. 1-3, the present utility model provides an insertion navigation device for cervical cancer treatment, comprising an external component and an internal component;

the external component comprises a sleeve 1 and a fixing hoop 11, wherein the main body of the sleeve 1 is cylindrical and is matched with the vagina of a patient; the fixing hoop 11 is fixedly connected with the sleeve 1 through the connecting piece 13, so that the operation of tightening the fixing hoop 11 is more convenient. The size of the fixing hoop 11 is the same as that of the sleeve 1, an opening is arranged on the fixing hoop 11, and fixing components 12 are arranged on two ends of the opening. In this embodiment, the fixing component 12 includes fixing pieces disposed at two ends of the opening, and a through hole is disposed on the fixing pieces, through which the bolt passes through, and is adjusted and fastened by an adjusting nut.

The inner assembly comprises a number of interpolation catheters 2 for interpolation positioning in close contact with each other and being relatively free to slide, the length of the catheters being greater than the length of the outer assembly. In this embodiment, the implanting catheter 2 includes a central implanting catheter, an inner implanting catheter and an outer implanting catheter, which are layer by layer arranged in the sleeve 1 in a manner of being matched with the sleeve 1.

When the insertion navigation device for cervical cancer treatment is in a free state, one ends of the insertion guide pipes 2, which are far away from the fixed hoop 11, are integrally arc-shaped, so that the insertion navigation device can conveniently enter a human body; in the working state, referring to fig. 4, the shape of the end surface of the implanted catheter 3 in the sleeve 1, which is far away from one end of the fixing hoop 11, is adapted to the shape of the tumor surface, so that an individual interpolation positioning surface can be formed, and the implanted catheter 2 is in closer contact with the tumor surface.

In this embodiment, a clamping piece 21 and a clamping groove 22 which are mutually matched are arranged in the axial direction of the contact surface between the adjacent inserted guide pipes 2 and the axial direction of the contact surface between the inserted guide pipe 2 and the sleeve 1, and the mutually matched clamping piece 21 and the mutually matched clamping groove 22 are used for limiting the sliding direction of the inserted guide pipe 2.

The utility model provides an insertion navigation device for cervical cancer treatment, which has the working principle that:

when in use, the sleeve 1 and the implanted catheter 2 are guided into the vagina together; the fixed hoop 11 is loosened, the implantation catheter 2 which is firstly contacted with the tumor surface in the continuous pushing process stops moving, the implantation catheter 2 which is not contacted with the tumor surface continues moving, and can precisely move to the tumor surface by combining with image observation, namely, form close contact with the tumor surface, the fixed hoop 11 is screwed down at the moment, then, the implantation needles are led in from the implantation catheter 2, the implantation needles are accurately and effectively implanted into the tumor to form uniform and comprehensive coverage, and the implantation positioning is more precise.

In summary, the foregoing description is only of the preferred embodiments of the utility model, and is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims

1. An insertion navigation device for cervical cancer treatment is characterized by comprising an external component and an internal component; the outer assembly comprises a sleeve (1) and a fixing hoop (11), the sleeve body being cylindrical; the inner assembly comprises a plurality of inserted guide pipes (2) which are in close contact with each other and can slide relatively freely for interpolation positioning, the end faces of the inserted guide pipes, which are far away from one end of the fixing hoop, can form individual interpolation positioning surfaces according to different focus forms, and the length of the inserted guide pipes is larger than that of the outer assembly.

2. The insertion navigation device for cervical cancer treatment according to claim 1, wherein the axial direction of the contact surface between adjacent insertion catheters and the axial direction of the contact surface between the insertion catheter and the sleeve are provided with a clamping piece (21) and a clamping groove (22) which are mutually matched, and the mutually matched clamping piece and clamping groove are used for limiting the sliding direction of the insertion catheter.

3. The device according to any one of claims 1-2, wherein in a free state, the plurality of the insertion catheters are curved integrally at an end thereof remote from the fixing hoop.

4. The implantable navigation device for cervical cancer treatment according to claim 3, wherein the fixing hoop is fixedly connected with the sleeve.

5. The insertion navigation device for cervical cancer treatment according to claim 4, wherein the size of the fixing collar is the same as that of the sleeve, an opening is provided on the fixing collar, and fixing members (12) are provided on both ends of the opening.