Iodine 125 particle measuring support

Abstract

The utility model provides an iodine 125 particle measuring support which comprises a long detection tube, and a detection channel penetrating through the two ends of the detection tube is arranged in the center of the detection tube. The device further comprises a long push rod, the push rod can extend into the detection channel and is used for pushing particles in the detection channel, the diameter of the detection channel at the lower end of the detection pipe is gradually reduced from top to bottom, a deformation groove is formed in the lower end of the detection pipe, and the deformation groove penetrates through the inner side, the outer side and the lower end of the detection pipe. A trumpet-shaped particle guide ring is arranged at the upper end of the detection tube and is communicated with the detection channel. When small-size particles are detected, the detection tube can be used for detection, the particles enter the detection channel, the push rod is used for pushing the particles in the detection channel and pushing the particles to a detection position, the detection tube is placed in the well-type ionization chamber for detection, and after detection is completed, the push rod is used for pushing the particles out of the detection channel.

Description

Technical Field

[0001] The utility model relates to a detection bracket, belonging to the field of medical devices, and particularly relates to an iodine-125 particle measurement bracket. Background Technique

[0002] The radioactive seed implantation method is to implant micro radioactive seeds into tumors or tissues infiltrated by tumors, including tissues with malignant tumors spreading along the lymphatic pathway. Through the continuously emitted low-energy γ rays from the radioactive seed source, the tumor tissue suffers the greatest degree of radiation damage and destruction, while the normal tissue is not damaged or only slightly damaged, so as to achieve the treatment purpose.

[0003] When using radioactive seeds for treatment, the activity of the radioactive seed source will directly affect the treatment effect. Therefore, before treatment, it is necessary to randomly inspect the radioactive seeds and measure their activity for quality control. Iodine-125 seeds are a commonly used seed source.

[0004] The existing equipment for detecting the activity of seeds is a well-type ionization chamber. The seeds are placed on a bracket, and the bracket is placed in the well-type ionization chamber for detection.

[0005] For example, a detection bracket for measuring the activity of iodine seeds on a general-purpose activity meter is disclosed in the patent with the patent authorization announcement number CN 214750853 U. Refer to Figure 1 as shown.

[0006] Based on the existing general-purpose activity meter, an auxiliary bracket is added for the detection of small radioactive seeds. Its purpose is to ensure that the radioactive seeds are detected in an upright state to obtain the activity value of the seeds.

[0007] However, the added detection cavity, which consists of a flared opening, a straight tube, and the inner circumference of the tube, is such that after small-volume iodine seeds enter the inner circumference of the tube, it is easy for the seeds to contact and adhere to the inner circumference of the tube due to their light mass, affecting the entry and exit of the seeds. Summary of the Invention

[0008] Aiming at the problems pointed out in the background technique, the utility model proposes an iodine-125 particle measurement bracket to solve the above technical problems.

[0009] The technical solution of the utility model is realized as follows:

[0010] An iodine-125 particle measurement bracket,

[0011] comprising a long detection tube, and a detection channel penetrating through both ends of the detection tube is provided at the center of the detection tube;

[0012] It further comprises a long push rod, and the push rod can extend into the detection channel to push the seeds in the detection channel.

[0013] The present utility model is further configured such that the diameter of the detection channel at the lower end of the detection tube gradually decreases from top to bottom, and a deformation groove is provided at the lower end of the detection tube, and the deformation groove penetrates through the inner and outer sides and the lower end of the detection tube.

[0014] The present utility model is further configured such that a horn-shaped particle guiding ring is provided at the upper end of the detection tube, and the particle guiding ring is communicated with the detection channel.

[0015] The present utility model is further configured to further include a sample box, a connecting rod, a first handle, and a positioning piece. The sample box is fixedly connected to the lower end of the connecting rod, the first handle is fixedly connected to the upper end of the connecting rod, the positioning piece is fixedly connected to the middle of the connecting rod, a positioning hole coaxial with the sample box is provided on the positioning piece, and the detection tube is movably inserted into the positioning hole.

[0016] The present utility model is further configured such that the diameter of the detection tube is equal to the diameter of the positioning hole.

[0017] The present utility model is further configured to further include a storage cavity penetrating through the upper ends of the connecting rod and the first handle, and the detection tube can be stored in the storage cavity.

[0018] The present utility model is further configured such that a second handle is provided at the upper end of the push rod.

[0019] The present utility model is further configured such that the diameter of the detection channel is 1-2 mm.

[0020] The present utility model is further configured such that the length of the detection tube is 20-35 cm.

[0021] Adopting the above technical solution, the beneficial effect of the present utility model is:

[0022] For the 125-particle measurement bracket provided by the present utility model, when detecting small-volume particles, a detection tube can be used for detection. The particles enter the detection channel, and the push rod is used to push the particles in the detection channel to push the particles to the detection position. The detection tube is placed in a well-type ionization chamber for detection. After the detection is completed, the push rod is used to push the particles out of the detection channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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 use in 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.

[0024] Figure 1 It is a schematic structural diagram of an existing particle measurement bracket.

[0025] Figure 2 It is a schematic structural diagram of the detection tube and the push rod of the present utility model.

[0026] Figure 3 For the present utility model Figure 2 An enlarged view of part A in it.

[0027] Figure 4 It is a schematic structure of the present utility model Figure 1 .

[0028] Figure 5 It is a schematic structure of the present utility model Figure 2 .

[0029] Figure 6 It is a schematic structural diagram of the detection tube used in the present utility model.

[0030] Figure 7 It is a schematic structure of the storage cavity provided in the present utility model Figure 1 .

[0031] Figure 8 It is a schematic structure of the storage cavity provided in the present utility model Figure 2 .

[0032] Explanation of reference numerals in the drawings: detection tube 1, detection channel 2, push rod 3, deformation groove 4, particle guiding ring 5, sample box 6, connecting rod 7, handle 8, positioning piece 9, positioning hole 10, storage cavity 11. Specific embodiments

[0033] 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 of 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 belong to the scope of protection of the present utility model.

[0034] The following is a description of the present utility model with reference to Figure 1-8 :

[0035] Embodiment 1: An iodine-125 particle measurement bracket, comprising a sample box 6, a connecting rod 7, a first handle 8, and a positioning piece 9. The sample box 6 is a cylindrical box body with an upward opening. The connecting rod 7 is a long rod-shaped structure. The positioning piece 9 is circular. The sample box 6 is fixedly connected to the lower end of the connecting rod 7. The first handle 8 is fixedly connected to the upper end of the connecting rod 7. The positioning piece 9 is fixedly connected to the middle of the connecting rod 7. A positioning hole 10 coaxial with the sample box 6 is provided on the positioning piece 9. By adopting the above technical solution, the particles to be detected are placed in the sample box 6, and the sample box 6 is then placed into the well-type ionization chamber through the first handle 8 and the connecting rod 7 for detection.

[0036] It further includes a long detection tube 1. The length of the detection tube 1 is 20 - 35 cm. A detection channel 2 penetrating through both ends thereof is provided at the center of the detection tube 1. The diameter of the detection channel 2 is 1 - 2 mm. Columnar particles are placed in the detection channel 2 for detection. It further includes a long push rod 3. The push rod 3 can extend into the detection channel 2 to push the particles in the detection channel 2. After the particles are placed in the detection channel 2, the push rod 3 can be used to push the particles in the detection channel 2, pushing the particles from the upper end entrance of the detection tube 1 to the detection position at the lower end of the detection tube 1. After the detection is completed, the particles are then pushed out of the detection tube 1. The detection tube 1 can detect small-volume particles. The detection tube 1 can keep the particles in a vertical state, which helps with the detection. The push rod 3 can drive the particles to move in the detection channel 2, preventing the particles from sticking to the detection channel 2 and being unable to move. A second handle 12 is provided at the upper end of the push rod 3. By setting the second handle 12, it is convenient to use the push rod 3 through the second handle 12.

[0037] The diameter of the detection channel 2 at the lower end of the detection tube 1 gradually decreases from top to bottom, and the diameter of the lower end of the detection channel 2 is smaller than the diameter of the particles. This is equivalent to forming a detection position at the lower end of the detection tube 1. During detection, the particles stay at this detection position, which can ensure that the particles will not fall out from the lower end of the detection tube 1. After the detection is completed, the particles are then pushed out of the detection tube 1 with a push rod.

[0038] A deformation groove 4 is provided at the lower end of the detection tube 1. There is one deformation groove 4, and the deformation groove 4 penetrates through the inner and outer sides and the lower end of the detection tube 1. Setting the deformation groove 4 can cause the lower end of the detection tube 1 to undergo an opening deformation, which helps the particles to escape from the lower end of the detection tube 1.

[0039] A trumpet-shaped particle guiding ring 5 is provided at the upper end of the detection tube 1. The particle guiding ring 5 is communicated with the detection channel 2. Setting the guiding ring 5 helps the particles to enter the detection tube 1. The particles are in an overall columnar structure, and the diameter of the detection channel 2 is equal to or slightly larger than the diameter of the particles.

[0040] When using the test tube 1 for detection, the test tube 1 is movably inserted into the positioning hole 10. The diameter of the test tube 1 is equal to that of the positioning hole 10. The lower end of the test tube 1 extends to the bottom of the sample box 6. Particles are added into the guiding ring 5 at the upper end of the test tube 1, and then the push rod 3 is used to push the particles downward to the detection position.

[0041] It further includes a storage cavity 11 penetrating through the connecting rod 7 and the upper end of the first handle 8. The storage cavity 11 is arranged along the length direction of the connecting rod 7. When the test tube 1 is not in use, the test tube 1 can be inserted into the storage cavity 11 for storage, and the push rod 3 is inserted into the detection channel 2.

[0042] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An iodine-125 particle measurement bracket, characterized in that: It includes an elongated detection tube (1), and a detection channel (2) penetrating through both ends thereof is provided at the center of the detection tube (1). It further includes an elongated push rod (3), and the push rod (3) can extend into the detection channel (2) to push the particles in the detection channel (2); it also includes a sample box (6), a connecting rod (7), a first handle (8), and a positioning piece (9). The sample box (6) is fixedly connected to the lower end of the connecting rod (7), the first handle (8) is fixedly connected to the upper end of the connecting rod (7), the positioning piece (9) is fixedly connected to the middle of the connecting rod (7), a positioning hole (10) coaxial with the sample box (6) is provided on the positioning piece (9), and the detection tube (1) is movably inserted into the positioning hole (10).

2. The iodine-125 seed measurement bracket according to claim 1, characterized in that: The diameter of the detection channel (2) at the lower end of the detection tube (1) gradually decreases from top to bottom, and a deformation groove (4) is provided at the lower end of the detection tube (1), and the deformation groove (4) penetrates through the inner and outer sides and the lower end of the detection tube (1).

3. The iodine-125 seed measuring bracket according to claim 1, characterized in that: A horn-shaped particle guiding ring (5) is provided at the upper end of the detection tube (1), and the particle guiding ring (5) is communicated with the detection channel (2).

4. The iodine-125 seed measuring bracket according to claim 1, characterized in that: The diameter of the detection tube (1) is equal to the diameter of the positioning hole (10).

5. The iodine-125 seed measuring bracket according to claim 1, characterized in that: It further includes a storage cavity (11) penetrating through the upper ends of the connecting rod (7) and the first handle (8), and the detection tube (1) can be stored in the storage cavity (11).

6. The iodine-125 seed measurement bracket according to claim 5, characterized in that: A second handle (12) is provided at the upper end of the push rod (3).

7. The iodine-125 particle measurement bracket according to claim 1, characterized in that: The diameter of the detection channel (2) is 1-2 mm.

8. A measurement stent for iodine-125 seeds according to claim 1, characterized in that: The length of the detection tube (1) is 20-35 cm.

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