Implantation needle tube and iodine 125 particle implantation device

Abstract

The implantation needle tube and the iodine 125 particle implantation device comprise a needle tube body, a channel penetrating through the two ends of the needle tube body in the length direction is formed in the needle tube body, the front end of the needle tube body is a needle tip end, a first exhaust groove is formed in the side wall of the channel, and a second exhaust groove is formed in the side wall of the channel. The first exhaust groove extends in the length direction of the needle tube body, and the first exhaust groove penetrates through the rear end of the needle tube body. The exhaust groove is formed between the push rod and the needle tube, so that when the push rod is pushed to move, air in the needle tube can be exhausted from the exhaust groove, and the problem of air blockage is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of iodine-125 seed implantation devices, and particularly relates to an implantation needle tube and an iodine-125 seed implantation device. Background Art

[0002] Radioactive seed implantation therapy is to implant a closed radiation source (seed) with a certain specification and activity into the solid tumor tissue according to a predetermined treatment plan and make it stay for a long time. The γ rays spontaneously emitted by the radionuclide are used to continuously irradiate the tumor cells, causing damage to the tumor cells, so as to effectively destroy the lesion tissue and inhibit the proliferation of tumor cells.

[0003] For example, a patent with the patent authorization announcement number CN 219743677 U discloses an iodine-125 seed implantation device that can be operated with one hand. And refer to Figure 1 as shown.

[0004] In the technology disclosed in the above patent, it has a puncture needle 11 and a push rod part 21. When in use, the closed seeds and the push rod part 21 enter the inside of the puncture needle 11, and the push rod part 21 pushes the seeds to move, and implants the seeds into a specific part of the human body.

[0005] However, when it is in use, there are still the following problems: Since the seeds and the push rod part 21 are basically in a state of being adaptively connected to the inner cavity of the puncture needle 11, when the push rod part 21 moves, it is difficult to discharge the air in the puncture needle 11, and the air is compressed, and there may be a problem that it is difficult to push in the push rod part 21. Content of the Utility Model

[0006] Aiming at the problems pointed out in the background art, the utility model provides an implantation needle tube and an iodine-125 seed implantation device to solve the above technical problems.

[0007] The technical solution of the utility model is realized as follows:

[0008] An implantation needle tube includes a needle tube body. A channel penetrating through both ends in the length direction of the needle tube body is provided inside the needle tube body. The front end of the needle tube body is a needle tip. A first exhaust groove is provided on the side wall of the channel. The first exhaust groove extends along the length direction of the needle tube body, and the first exhaust groove penetrates through the rear end of the needle tube body.

[0009] The utility model is further provided that an exhaust hole communicating with the channel is provided on the outer side wall of the needle tube body.

[0010] The utility model is further provided that the exhaust hole is arranged close to the rear end of the needle tube body.

[0011] The present utility model is further configured such that a stabilizing disk is slidably connected to the syringe body.

[0012] The present utility model is further configured such that a connection hole slidably connected to the syringe body is provided at the center of the stabilizing disk.

[0013] An iodine-125 seed implanting device includes the above-mentioned implanting syringe.

[0014] The present utility model is further configured such that a push rod is slidably connected in the channel, and a handle is provided at the rear end of the push rod.

[0015] The present utility model is further configured such that a second exhaust groove is provided on the side wall of the push rod, and the second exhaust groove extends along the length direction of the push rod.

[0016] The present utility model is further configured such that a protruding limiting portion is provided on the outer side wall of the push rod, and the limiting portion is connected to the first exhaust groove.

[0017] The present utility model is further configured such that the second exhaust groove is spirally arranged.

[0018] By adopting the above technical solutions, the beneficial effects of the present utility model are as follows:

[0019] The implanting syringe and the iodine-125 seed implanting device provided by the present utility model form an exhaust groove between the push rod and the syringe, so that when the push rod is pushed and moved, the air inside the syringe can be discharged from the exhaust groove to solve the problem of air blockage. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic structural diagram of the prior art.

[0022] Figure 2 It is a schematic structural diagram of the syringe of the present utility model Figure 1 。

[0023] Figure 3 It is a sectional view of the syringe of the present utility model.

[0024] Figure 4 It is a schematic structural diagram of the syringe of the present utility model Figure 2 。

[0025] Figure 5 This is a magnified view of part A in the present utility model. Figure 4 in the present utility model.

[0026] Figure 6 This is a schematic structural view of the implant device of the present utility model.

[0027] Figure 7 This is an exploded schematic view of the implant device of the present utility model.

[0028] Figure 8 This is Figure 7 a magnified view of part B in the present utility model.

[0029] Figure 9 This is a cross-sectional view of the implant device of the present utility model.

[0030] Figure 10 This is Figure 9 a magnified view of part C in the present utility model.

[0031] Explanation of reference numerals in the drawings: syringe body 1, channel 2, first exhaust groove 3, exhaust hole 4, stabilizing disc 5, connecting hole 6, push rod 7, handle 8, second exhaust groove 9, limiting part 10. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0033] The following is an explanation of the present utility model with reference to Figure 1-10 the following:

[0034] Embodiment 1: An iodine-125 seed implant device.

[0035] It includes an implant syringe, and the implant syringe includes a syringe body 1. The syringe body 1 is a slender cylindrical structure. A channel 2 running through both ends in its length direction is provided inside the syringe body 1. The cross-section of the channel 2 is circular, and the front end of the syringe body 1 is a needle tip. An inwardly concave first exhaust groove 3 is provided on the side wall of the channel 2. The first exhaust groove 3 extends along the length direction of the syringe body 1 and runs through the rear end of the syringe body 1. The first exhaust groove 3 is a linear structure. An exhaust hole 4 communicating with the channel 2 is provided on the outer side wall of the syringe body 1. The exhaust hole 4 is close to the rear end of the syringe body 1. It is designed such that when the syringe body 1 is inserted into the human body, the exhaust hole 4 is located outside the human body, and the exhaust hole 4 is communicated with the first exhaust groove 3.

[0036] It includes a push rod 7. The push rod 7 is of a cylindrical structure and is slidably connected within a channel 2. The diameter of the push rod 7 is equal to or slightly smaller than the diameter of the first exhaust groove 3. A handle 8 is provided at the rear end of the push rod 7, and the push rod 7 is held by the handle 8. The push rod 7 enters the channel 2 and slides to push the particles within the channel 2 to move. A second exhaust groove 9 is provided on the side wall of the push rod 7. The second exhaust groove 9 extends along the length direction of the push rod 7 and is arranged in a spiral shape. By adopting the above technical solution, when the push rod 7 advances within the channel 2, the air pressed within the channel 2 will enter the first exhaust groove 3 and the second exhaust groove 9, and be discharged from the first exhaust groove 3, the second exhaust groove 9, and the exhaust hole 4.

[0037] A stabilizing disk 5 is slidably connected to the syringe body 1. A connection hole 6 slidably connected to the syringe body 1 is provided at the center of the stabilizing disk 5. The stabilizing disk 5 is of a circular structure and is made of plastic. A silica gel contact layer is provided on the side surface of the stabilizing disk 5 facing the human body. After the syringe body 1 is inserted into the human body, the stabilizing disk 5 moves towards the human epidermis, making the stabilizing disk 5 contact the human skin, and adsorbing on the human skin by means of the silica gel contact layer, playing a role in balancing and stabilizing the syringe body 1.

[0038] A protruding limiting portion 10 is provided on the outer side wall of the push rod 7. The limiting portion 10 is connected to the first exhaust groove 3. The limiting portion 10 is provided at the front end of the push rod 7, and the width of the limiting portion 10 is smaller than the width of the first exhaust groove 3. When the push rod 7 enters the channel 2, the limiting portion 10 is slidably connected to the first exhaust groove 3. The limiting portion 10 can prevent the push rod 7 from rotating; when the first exhaust groove 3 is blocked, the limiting portion 10 can dredge the first exhaust groove 3; after the push rod 7 enters the channel 2 until the particles are pushed out of the syringe body 1, the limiting portion 10 abuts against the front end of the channel 2 to prevent the push rod 7 from moving forward continuously.

[0039] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An implant needle tube, comprising a needle tube body (1), wherein the interior of the needle tube body (1) is provided with channels (2) penetrating through both ends of the needle tube body (1) in the length direction, and the front end of the needle tube body (1) is a needle tip, characterized in that: A first exhaust groove (3) is provided on the side wall of the channel (2). The first exhaust groove (3) is extended along the length direction of the needle tube body (1). The first exhaust groove (3) runs through the rear end of the needle tube body (1).

2. The implant needle tube according to claim 1, characterized in that: An exhaust hole (4) communicating with the channel (2) is provided on the outer side wall of the needle tube body (1).

3. The implant needle tube according to claim 2, characterized in that: The exhaust hole (4) is arranged close to the rear end of the needle tube body (1).

4. The implant needle tube according to claim 1, characterized in that: A stabilizing disk (5) is slidably connected to the needle tube body (1).

5. The implant needle tube according to claim 4, characterized in that: A connection hole (6) is provided at the center of the stabilizing disk (5) and is slidably connected to the needle tube body (1).

6. An iodine-125 particle implantation device, characterized in that: Comprising the implantation needle tube as described in any one of claims 1-5.

7. The iodine-125 particle implantation device according to claim 6, characterized in that: A push rod (7) is slidably connected in the channel (2), and a handle (8) is provided at the rear end of the push rod (7).

8. The iodine-125 seed implantation device according to claim 7, characterized in that: A second exhaust groove (9) is provided on the side wall of the push rod (7), and the second exhaust groove (9) is extended along the length direction of the push rod (7).

9. The iodine-125 seed implantation device according to claim 7, characterized in that: A protruding limiting portion (10) is provided on the outer side wall of the push rod (7), and the limiting portion (10) is connected to the first exhaust groove (3).

10. The iodine-125 seed implantation device according to claim 8, characterized in that: The second exhaust groove (9) is arranged in a spiral shape.

Images