CN111632261A

CN111632261A - Implant device for internal radiotherapy

Info

Publication number: CN111632261A
Application number: CN202010531310.1A
Authority: CN
Inventors: 李星月; 孙银贵; 李世平; 祝捷; 申安
Original assignee: Affiliated Hospital of Weifang Medical University
Current assignee: Affiliated Hospital of Weifang Medical University
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2020-09-08
Anticipated expiration: 2040-06-11
Also published as: CN111632261B

Abstract

The invention belongs to the technical field of medical instruments, and relates to an implantation device for internal radiotherapy, which comprises a pusher and an implanter, wherein the pusher comprises a push head, a sleeve and a push head, the push head and the push head are respectively arranged at two ends of the sleeve, the push head, the sleeve, the push head and the implanter are respectively provided with a guide hole, the implanter is provided with a placing cavity, the implanter is provided with a plurality of through holes at corresponding positions of the placing cavity, the implanter and the opening end of the placing cavity are provided with a seal cover, the implanter comprises an implanter body and a cover body, the cover body is provided with a T-shaped fixture block, the implanter is provided with a first T-shaped slot matched with the T-shaped fixture block, a traction wire is fixedly arranged on the T-shaped fixture block, the inner wall of the push head is provided with a containing groove corresponding to the cover body, the radioactive source implantation device is used for solving the problem that the existing implantation means is difficult to accurately and directly place a radioactive source on a patient.

Description

Implant device for internal radiotherapy

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to an implantation device for internal radiotherapy.

Background

Tumor radiotherapy is a local treatment for tumors using radiation. The radiation includes alpha, beta and gamma rays generated by radioactive isotopes, and x-rays, electron beams, proton beams and other particle beams generated by various x-ray therapeutic machines or accelerators. About 70% of cancer patients require radiation therapy in the course of cancer treatment, and about 40% of cancers can be cured by radiation therapy. The role and position of radiotherapy in tumor treatment are increasingly prominent, and the radiotherapy has become one of the main means for treating malignant tumors.

Radiotherapy includes both internal and external radiotherapy, which is brachytherapy in which a radioactive source is placed directly into the tissue to be irradiated or into the natural cavity of the body.

When the implantation operation for treating the malignant tumor in the bile duct and the pancreas is performed, the guide wire 1 is mostly used, and the bile duct and the pancreas are longer, the position of the malignant tumor is deeper, and the radiation source is difficult to accurately and directly place at a patient position by the existing implantation means.

Disclosure of Invention

Based on the above mentioned problems in the background art, the present invention provides an implantation device for internal radiotherapy, which is used to solve the problem that the existing implantation means is difficult to accurately and directly place the radioactive source on the patient.

The technical scheme adopted by the invention is as follows:

the utility model provides an implant device of usefulness of putting internally, includes pusher and implanter, the pusher includes pushing head, sleeve pipe and top, pushing head and top are all installed in sheathed tube both ends, the guiding hole has all been seted up to pushing head, sleeve pipe, top and implanter, set up on the implanter and place the chamber, the implanter has seted up a plurality of through-holes in placing the chamber and having corresponded the position, the closing cap is installed in the open end of placing the chamber to the implanter.

On the basis of the scheme, the invention also improves the following steps:

further, the implanter comprises an implant body and a cover body, the placing cavity is formed in the implant body, a T-shaped fixture block is arranged on the cover body, a first T-shaped slot matched with the T-shaped fixture block is formed in the implant body, a traction wire is fixedly mounted on the T-shaped fixture block, a containing slot corresponding to the cover body is formed in the inner wall of the top head, and a second T-shaped slot is formed in the containing slot. The split type design of the implanter can also draw the cover body into the accommodating groove through the traction wire after the implanter is placed into the guide wire, so that the implant body is separated from the guide wire, and the guide wire does not need to be drawn out for continuous use.

Furthermore, one end of the first T-shaped slot is provided with a limiting block. The cover body is limited by the limiting block, and the cover body is prevented from being extruded and moved by the ejector in the implantation process.

Furthermore, an inclined plane is arranged at one end, far away from the top, of the implant body. The design through the inclined plane is favorable to reducing the propelling movement resistance when implanting, avoids better implanting the ware into.

Furthermore, one end of the top head, which is close to the implanter, is provided with a conical surface. The conical surface can make smooth transition between the implanter and the top head, and avoid the damage to human body caused by the protrusion of one end of the top head when implanting.

Furthermore, a first threading hole is formed in the plug, and the traction wire penetrates through the first threading hole. The traction wire is guided through the first threading hole, and the traction wire and the guide wire are prevented from interfering with each other to influence use.

Further, the pushing head is provided with a connector at one end, the sleeve is sleeved on the connector, the pushing head is provided with an L-shaped groove and a second threading hole, an L-shaped clamping block is clamped in the L-shaped groove, the traction wire penetrates through the second threading hole, and one end of the traction wire penetrating through the second threading hole is fixedly mounted on the L-shaped clamping block. The traction wire is pulled through the L-shaped clamping block, so that the cover body can be prevented from sliding and separating due to the fact that the traction wire is triggered during pushing.

Furthermore, a wire groove is formed in the L-shaped clamping block, the free end of the traction wire is located in the wire groove, and a limiting clamp is mounted at one end of the L-shaped clamping block of the traction wire. One end of the traction wire is located in the wire slot, the position of the limiting clamp is selected according to requirements, and the traction wire can be better fixed.

Furthermore, the pushing head is provided with a liquid injection hole, water can be injected into the sleeve through the liquid injection hole, and the guide wire is convenient to draw out.

The invention has the beneficial effects that:

put into the seal wire before the art, put into the radiation iodine particle and place the intracavity and fixed closing cap, locate the seal wire with pusher and implanter cover on, then promote the implanter through the pusher and remove to focus department, it takes out the seal wire to keep the fixed pulling seal wire of pusher to keep when arriving the focus to wait to implant the ware, implant the ware and keep static breaking away from the seal wire under the blockking of pusher, take out the pusher and make the implanter stop in focus department, high durability and convenient use, can be better implant the focus with the implanter.

Drawings

The invention is further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic view of an implant device for internal radiotherapy in accordance with an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 3 is a schematic longitudinal sectional view of an implant device for internal radiotherapy in accordance with an embodiment of the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 3;

FIG. 5 is a diagram illustrating an exemplary structure of an insert according to the present invention;

FIG. 6 is a diagram illustrating a split structure of an embedder according to an embodiment of the present invention;

FIG. 7 is a schematic longitudinal sectional view of the plug according to the embodiment of the present invention;

the main element symbols are as follows:

the device comprises a guide wire 1, a push head 2, an L-shaped groove 22, an L-shaped fixture block 23, a wire groove 231, a connector 24, an injection hole 25, a sleeve 3, a top head 4, a containing groove 42, a second T-shaped slot 43, a conical surface 44, an implanter 5, an implant 51, a placing cavity 511, a through hole 512, a first T-shaped slot 513, an inclined surface 514, a limiting block 515, a cover body 52, a T-shaped fixture block 521, a sealing cover 53, a traction wire 54 and a limiting clamp 541.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

Examples

As shown in fig. 1-7, an implantation device for internal radiotherapy comprises a pusher and an implanter 5, the pusher comprises a push head 2, a sleeve 3 and a top head 4, the push head 2 and the top head 4 are both mounted at two ends of the sleeve 3, the push head 2, the sleeve 3, the top head 4 and the implanter 5 are all provided with guide holes, the implanter 5 is provided with a placing cavity 511, the implanter 5 is provided with a plurality of through holes 512 at a position corresponding to the placing cavity 511, and the implanter 5 is provided with a sealing cover 53 at an opening end of the placing cavity 511.

Specifically, the implanter 5 includes an implant 51 and a cover 52, the placement cavity 511 is opened on the implant 51, the cover 52 is provided with a T-shaped fixture block 521, the implant 51 is provided with a first T-shaped slot 513 matched with the T-shaped fixture block 521, the T-shaped fixture block 521 is fixedly provided with a traction wire 54, the inner wall of the tip 4 is provided with a storage slot 42 corresponding to the cover 52, the storage slot 42 is provided with a second T-shaped slot 43, the split design of the implanter 5 can also draw the cover 52 into the storage slot 42 through the traction wire 54 after the implanter 5 is implanted by the guide wire 1, so that the implant 51 is separated from the guide wire 1, and the guide wire 1 does not need to be drawn out for continuous use.

Specifically, one end of the first T-shaped slot 513 is provided with a limiting block 515, and the cover body 52 is limited by the limiting block 515, so that the cover body 52 is prevented from being extruded and moved by the plug 4 in the implantation process.

Specifically, the inclined surface 514 is arranged at one end of the implant 51 away from the top 4, and the design of the inclined surface 514 is favorable for reducing pushing resistance during implantation, so that the implant 5 is prevented from being implanted better; the end of the top 4 close to the implanter 5 is provided with a conical surface 44, which enables the smooth transition between the implanter 5 and the top 4, and avoids the damage to human body caused by the protrusion of one end of the top 4 during implantation.

Specifically, a first threading hole 45 is formed in the plug 4, and the traction wire 54 is threaded through the first threading hole 45. The traction wire 54 is guided through the first threading hole 45, so that the influence on use caused by mutual interference of the traction wire 54 and the guide wire 1 is avoided.

Specifically, a connector 24 is arranged at one end of the pushing head 2, the sleeve 3 is sleeved on the connector 24, an L-shaped groove 22 and a second threading hole are formed in the pushing head 2, an L-shaped fixture block 23 is clamped in the L-shaped groove 22, and the traction wire 54 penetrates through the second threading hole and is fixedly mounted on the L-shaped fixture block 23 at one end penetrating through the second threading hole. The pulling wire 54 is pulled by the L-shaped fixture block 23, so that the cover body 52 can be prevented from sliding and separating due to the fact that the pulling wire 54 is triggered during pushing.

Specifically, a line groove 231 is formed in the L-shaped fixture block 23, the free end of the pull wire 54 is located in the line groove 231, and a limit clip 541 is mounted at one end of the L-shaped fixture block 23 of the pull wire 54. One end of the traction wire 54 is located in the wire groove 231, and the position of the limiting clamp 541 is selected according to requirements, so that the traction wire 54 can be better fixed.

Specifically, the pushing head 2 is provided with a liquid injection hole 25, water can be injected into the sleeve 3 through the liquid injection hole 25, and the guide wire is convenient to draw out.

Before use, firstly implanting the guide wire 1, placing the radiated iodine particles into the placing cavity 511 and fixing the sealing cover 53, and then sleeving the pusher and the implanter 5 on the guide wire 1; pushing the push head 2, pushing the injector 5 to move towards the focus under the action of the sleeve 3 and the push head 4, rotating the push head 2 to drive the push head 4 to rotate when pushing so as to prevent the cover body 52 from sliding towards the accommodating groove 42 under the resistance of human tissues when pushing, and enabling the cover body 52 and the accommodating groove 42 to be staggered, keeping the push head to fixedly pull the guide wire 1 to extract the guide wire 1 when the injector 5 reaches the focus, keeping the injector 5 still to be separated from the guide wire under the blockage of the push head, and extracting the push head to enable the injector 5 to stay at the focus;

if the guide wire 1 needs to be used continuously, the pushing head 2 is rotated to drive the pushing head 4 to rotate so that the cover body 52 corresponds to the accommodating groove 42, then the pulling wire 54 is pulled through the L-shaped clamping block 23 to drive the cover body 52 to move, the cover body 52 is pulled into the accommodating groove 42, the implant 51 is separated from the guide wire 1, then the pushing head 2, the sleeve 3 and the pushing head 4 are pulled out, and the guide wire 1 can be used continuously without being pulled out.

The implant device for internal radiotherapy provided by the present invention is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. An implantation device for internal radiotherapy, comprising a pusher and an implanter (5), characterized in that: pusher includes pushing head (2), sleeve pipe (3) and top (4), pushing head (2) and top (4) are all installed in the both ends of sleeve pipe (3), the guiding hole has all been seted up in pushing head (2), sleeve pipe (3), top (4) and implanter (5), set up on implanter (5) and place chamber (511), implanter (5) have seted up a plurality of through-holes (512) in placing chamber (511) corresponding position, implantation (5) install closing cap (53) in the open end of placing chamber (511).

2. An implant device for internal radiotherapy according to claim 1, wherein: the implanter (5) comprises an implant body (51) and a cover body (52), the placing cavity (511) is arranged on the implant body (51), a T-shaped fixture block (521) is arranged on the cover body (52), a first T-shaped slot (513) matched with the T-shaped fixture block (521) is arranged on the implant body (51), a traction wire (54) is fixedly mounted on the T-shaped fixture block (521), a containing slot (42) corresponding to the cover body (52) is formed in the inner wall of the top head (4), and a second T-shaped slot (43) is formed in the containing slot (42).

3. An implant device for internal radiotherapy according to claim 2, wherein: one end of the first T-shaped slot (513) is provided with a limiting block (515).

4. An implant device for internal radiotherapy according to claim 3, wherein: an inclined plane (514) is arranged at one end of the implant body (51) far away from the top head (4).

5. An implant device for internal radiotherapy according to claim 4, wherein: one end of the top head (4) close to the implanter (5) is provided with a conical surface (44).

6. An implant device for internal radiotherapy according to claim 5, wherein: the ejector head (4) is provided with a first threading hole (45), and the traction wire (54) is arranged in the first threading hole (45) in a penetrating mode.

7. An implant device for internal radiotherapy according to claim 6, wherein: push away first (2) one end and be equipped with connector (24), sleeve pipe (3) cover is located on connector (24), L shape groove (22) and second through wires hole have been seted up on pushing away head (2), L shape groove (22) inside callipers are equipped with L shape fixture block (23), in second through wires hole is worn to locate by haulage silk (54), and in wearing out second through wires hole one end fixed mounting on L shape fixture block (23).

8. An implant device for internal radiotherapy according to claim 7, wherein: a line groove (231) is formed in the L-shaped fixture block (23), the free end of the drawing wire (54) is located in the line groove (231), and a limiting clamp (541) is mounted at one end, located on the L-shaped fixture block (23), of the drawing wire (54).

9. An implant device for internal radiotherapy according to claim 8, wherein: and the pushing head (2) is provided with a liquid injection hole (25).