Radioactive 125 particle implantation auxiliary equipment

Abstract

The invention provides radioactive 125 particle implantation auxiliary equipment. The radioactive 125 particle implantation auxiliary equipment comprises a sticking sheet and a needle inserting plate, the sticking sheet is made of a flexible material, and a plurality of first needle holes are distributed in the sticking sheet; a plurality of second needle holes are distributed in the needle inserting plate, and the second needle holes correspond to the first needle holes; and the pin inserting plate is detachably connected with the sticking sheet. The sticking sheet is made of a flexible material and can be stuck on the surface of a human body, and the flexible sticking sheet can be deformed according to the concave-convex fluctuating shape of the surface of the human body so as to be tightly stuck on the surface of the human body and fixed; the needle inserting plate is detachably connected to the sticking sheet, so that the sticking sheet can be used as a disposable article, and the needle inserting plate can be repeatedly used after being cleaned and disinfected; the needle inserting plate is formed by combining a plurality of needle inserting blocks, so that the needle inserting plate can deform according to the concave-convex fluctuation of the surface of a human body, and each needle inserting plate can be tightly attached to the surface of the human body.

Description

Technical Field

[0001] The invention relates to the technical field of tumor radiotherapy, and in particular to a radioactive 125 particle implantation auxiliary device. Background Art

[0002] Brachytherapy, also called internal beam radiotherapy or sealed source radiotherapy, is a form of radiation therapy in which a radiation source is placed inside or near the area needing treatment.

[0003] With the continuous improvement of modern medical technology, the tumor treatment method of permanent radioactive particle implantation under image guidance has become an important method of tumor treatment. This method has the advantages of less trauma and accurate treatment.

[0004] The key to radioactive seed implantation technology lies in precise puncture technology. Only by achieving equidistant and precise puncture can the radioactive seeds be regularly distributed in the tumor tissue, thereby avoiding excessive damage to surrounding tissues by radiation on the one hand, and ensuring the effective irradiation dose to the tumor on the other.

[0005] Radioactive particle implantation therapy is currently mostly performed under the guidance of imaging technologies such as CT, ultrasound, and MRI. The puncture methods include traditional puncture methods and template-positioned puncture methods.

[0006] The traditional puncture method is that the surgeon relies on good anatomical knowledge and surgical techniques to achieve tumor puncture and radioactive particle placement. Its advantages are high flexibility and the ability to manually control the puncture position and angle. However, it is significantly affected by human factors, there are significant individual differences among operators, and the controllability of particle placement is poor.

[0007] The template-based puncture method uses a fixed template to guide the puncture needle for puncture biopsy of the lesion or to perform particle implantation surgery. The currently used radioactive particle implantation template is mainly a fixed flat plate, and the contours of the patient's site vary. A single flat-shaped radioactive particle implantation template is difficult to adapt to the contour of the patient's site. Summary of the invention

[0008] In view of the problems pointed out in the background technology, the present invention proposes a radioactive 125-seed implantation auxiliary device to solve the above technical problems.

[0009] The technical solution of the present invention is achieved in this way:

[0010] A radioactive 125-seed implant auxiliary device, comprising an adhesive patch and a pin plate;

[0011] The adhesive sheet is made of a flexible material and has a plurality of first pinholes distributed on the adhesive sheet;

[0012] The pin board is provided with a plurality of second pinholes, and the second pinholes are arranged corresponding to the first pinholes;

[0013] The pin plate and the adhesive sheet are detachably connected.

[0014] The present invention is further configured such that the adhesive sheet is a sheet material, an adhesive layer is provided on the lower side of the adhesive sheet, a release paper layer is provided on the adhesive layer, and the pin board is connected to the upper side of the adhesive sheet.

[0015] The present invention is further configured such that the pin plate is composed of a plurality of pin blocks, the number and positions of the pin blocks are arranged corresponding to the number and positions of the first pin holes, and the second pin holes are arranged on the pin blocks.

[0016] The present invention is further configured such that a plurality of pin blocks are connected in series and fixed via connecting wires.

[0017] The present invention is further configured such that the connecting line can be elastically stretched.

[0018] The present invention is further configured as follows: an outer wrapping sheet is provided on the upper side surface of the adhesive sheet, the edge of the outer wrapping sheet is fixedly connected to the adhesive sheet, an opening for the pin plate to be installed is formed between the outer wrapping sheet and the adhesive sheet, the pin plate is adaptably connected between the outer wrapping sheet and the adhesive sheet, and the outer wrapping sheet is provided with a through hole corresponding to the second pinhole.

[0019] The present invention is further configured such that a connector is detachably connected to the second needle hole, a hole is provided on the connector for the puncture needle to pass through, and the connector passes through the through hole.

[0020] The present invention is further configured such that the connecting head is threadedly connected to the second pinhole, and an annular clamping sheet is provided on the outer side wall of the connecting head. When the connecting head and the second pinhole are threadedly tightened, the outer wrapping sheet is fixedly clamped between the clamping sheet and the pin block.

[0021] The present invention is further configured such that the upper end of the connector is a cone that is larger at the top and smaller at the bottom, and the upper end of the connector is provided with a groove that runs through its inner and outer sides and the upper end, and there are multiple grooves that are arranged at circumferential intervals on the connector, and a locking sleeve is threadedly connected to the connector.

[0022] The present invention is further configured to include a binding strip, which is located on the upper side of the outer wrapping sheet, and the two ends of the binding strip are respectively fixedly connected to the adhesive sheet, and the two ends of the binding strip are located on both sides of the outer wrapping sheet.

[0023] By adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0024] The radioactive 125 particle implantation auxiliary device provided by the present invention has an adhesive sheet made of a flexible material and can be adhered to the surface of the human body. The flexible adhesive sheet can be deformed according to the uneven shape of the human body surface to be tightly adhered to the surface of the human body and fixed; the pin plate is detachably connected to the adhesive sheet, so that the adhesive sheet can be used as a disposable item, and the pin plate can be reused after cleaning and disinfection; the pin plate is composed of a plurality of pin blocks, so that the pin plate can be deformed according to the uneven shape of the human body surface, so that each pin plate can be tightly adhered to the surface of the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 It is a schematic diagram of the decomposition of the present invention.

[0028] Figure 3 It is a schematic diagram of the structure of the adhesive sheet and the outer wrapping sheet of the present invention.

[0029] Figure 4 It is a structural schematic diagram of the lower side of the adhesive sheet of the present invention.

[0030] Figure 5 It is a cross-sectional view of the present invention.

[0031] Figure 6 It is a schematic diagram of the exploded view of the adhesive sheet and the pin board of the present invention.

[0032] Figure 7 It is an exploded schematic diagram of the pin board of the present invention.

[0033] Figure 8 It is a cross-sectional view of the pin block of the present invention. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] For reference Figure 1-8 The present invention is described:

[0036] A radioactive 125 particle implantation auxiliary device (also called a particle implantation template or a particle implantation puncture template), comprising an adhesive patch 1 and a pin plate 2. The adhesive patch 1 is made of a flexible material, and is provided with a plurality of first pinholes 3, which are made of a flexible material, such as soft silicone or medical rubber, and have good fit and comfort, and can adapt to the shapes of body parts of different patients. There are a plurality of first pinholes 3 distributed on it, and the positions of these pinholes are precisely designed to ensure that the radioactive particles can be accurately implanted into the target area. There are a plurality of second pinholes 4 distributed on the pin plate 2, and the second pinholes 4 are arranged corresponding to the first pinholes 3. The pin plate 2 is also provided with a plurality of second pinholes 4, which are arranged corresponding to the first pinholes 3 on the adhesive patch 1, to provide accurate guidance for the puncture needle. The pin plate 2 is usually made of a hard and sterile material, such as medical stainless steel or high-strength plastic, to ensure stability and safety during operation. The pin plate 2 and the adhesive sheet 1 are detachably connected, which is convenient for assembly and disinfection before use, and disassembly and cleaning after use. This design also facilitates replacement of pin plates 2 or adhesive sheets 1 of different specifications according to different treatment needs.

[0037] Increased operational convenience: The flexible adhesive sheet 1 can better fit the patient's body surface and reduce the patient's discomfort. The detachable connection method allows medical staff to be more flexible during operation and quickly adjust and replace components according to actual conditions. For example, for patients of different body shapes and parts, a more suitable combination of adhesive sheet 1 and pin board 2 can be selected to improve the efficiency and comfort of operation.

[0038] The adhesive patch 1 can be used as a disposable item, and the pin plate 2 can be reused after cleaning and disinfection. The disposable adhesive patch 1 can ensure that each treatment is carried out under brand new and sterile conditions, minimizing the risk of cross infection. For example, in a hospital environment, the transmission of pathogens between different patients is an important issue, and the disposable adhesive patch can effectively avoid this situation. Using a new adhesive patch 1 each time can ensure its good fit and comfort, and will not deform or decrease in viscosity due to repeated use. Just like applying a Band-Aid to a patient, if it is new, it can often fit the wound more closely and provide better protection. Although disposable use may increase certain costs, considering its importance to treatment effect and patient safety, this cost is worthwhile. Moreover, through large-scale production and optimized supply chain, the cost of disposable adhesive patch 1 can be effectively controlled. The pin plate 2 is usually made of relatively strong and durable materials, and can be reused after cleaning and disinfection, which can reduce resource waste and medical costs. Similar to the repeated disinfection and use of surgical instruments, the rational use of resources is achieved while ensuring safety. As long as the cleaning and disinfection procedures are carried out in accordance with the regulations each time, the structure and performance of the pin plate 2 will not be affected, thereby ensuring that accurate pinhole guidance can still be provided during multiple uses. For the reusable pin plate 2, it is necessary to establish a strict cleaning and disinfection process and quality inspection standards to ensure that it meets the hygiene and safety requirements. In summary, designing the adhesive sheet 1 as a disposable item and reusing the pin plate 2 after cleaning and disinfection is a reasonable strategy to achieve hygiene, comfort, cost control and resource conservation on the basis of ensuring treatment effect and patient safety.

[0039] The adhesive sheet 1 is a sheet material, and an adhesive layer is provided on the lower side of the adhesive sheet 1, and a release paper layer 5 is provided on the adhesive layer. When in use, the release paper layer 5 is torn off, and the pin plate 2 is connected to the upper side of the adhesive sheet 1. Selection of sheet material: The adhesive sheet 1 is in the form of a sheet material in order to provide sufficient coverage and stability to ensure that it can be effectively attached to the treatment site. For example, in some medical dressings, the sheet material can evenly distribute pressure and provide a more comfortable fit.

[0040] Function of adhesive layer: The adhesive layer provided on the lower side enables the adhesive patch 1 to adhere firmly to the patient's skin to prevent displacement during treatment. This is like common medical adhesive tape, in which the adhesive can maintain stickiness while being less irritating to the skin.

[0041] The significance of the release paper layer 5: The release paper layer 5 protects the adhesive layer when not in use, so that it maintains good adhesion and sterility. For example, some common adhesive labels are covered with release paper before use to prevent adhesion and contamination.

[0042] Removal of release paper layer 5: When preparing for treatment, the release paper layer 5 is removed to expose the adhesive layer so that the adhesive sheet 1 can be attached to the correct position of the patient. This step requires careful operation to ensure that the adhesive layer is not contaminated or damaged.

[0043] The pin board 2 is connected to the upper side of the adhesive sheet 1, and this connection may be achieved through a slot, a buckle or other fixing devices.

[0044] Improve the accuracy of treatment: the firm adhesion of the adhesive sheet 1 and the accurate connection of the pin plate 2 together ensure the positional accuracy of the radioactive 125 seed implantation.

[0045] Enhanced patient comfort: Proper sheet and adhesive selection can reduce irritation and discomfort to the patient's skin.

[0046] Convenient operation and preparation: The simple steps of tearing off the release paper layer 5 and connecting the pin board 2 enable medical staff to quickly prepare for treatment.

[0047] In conclusion, the design and use of this adhesive patch 1 plays an important role in the radioactive 125-seed implant auxiliary device and provides strong support for the smooth progress of the treatment.

[0048] The pin board 2 is a square plate-shaped structure. The square design makes it easier for the pin board 2 to cooperate with the adhesive patch 1, covering the area that needs treatment, and providing stable support and guidance. The pin board 2 is composed of a plurality of pin blocks 6. The pin blocks 6 are smaller square plate-shaped structures. A plurality of pin blocks 6 are arranged and combined to form the pin board 2. This modular design increases the flexibility and customizability of the pin board 2, just like a puzzle. Figure 1 In this way, according to different treatment needs, the appropriate number and position of the pin blocks 6 can be selected for combination. The small size of the pin blocks 6 is convenient for accurately corresponding to the first pinholes 3 on the adhesive patch 1, thereby improving the accuracy of puncture. The number and position of the pin blocks 6 are set corresponding to the number and position of the first pinholes 3 on the adhesive patch 1. The second pinholes 4 are set on the pin blocks 6, ensuring that the second pinholes 4 on each pin block 6 can be accurately aligned with the first pinholes 3 on the adhesive patch 1, providing an accurate path for the puncture needle. Several pin blocks 6 are connected and fixed in series by connecting wires, and the connecting wires can be elastically stretched. The pin blocks 6 are connected and fixed in series, so that the pin blocks 6 can maintain a relatively fixed position to form an integral pin board 2.

[0049] The elastic stretching property brings many conveniences to the use of the pin board 2. For example, when the part to which the adhesive patch 1 is attached is not completely flat, the elasticity of the connecting line can allow the pin block 6 to adjust its position to a certain extent to better adapt to the shape of the treatment part.

[0050] The connecting wires connect the pin blocks 6 in series, and small holes are set at the edge or specific position of each pin block 6. The connecting wires pass through these small holes to connect the pin blocks 6 in series in sequence. The connecting wires are not shown in the figure.

[0051] For another example, during operation, if the coverage of the pin board 2 needs to be fine-tuned, the elasticity of the connecting wire can also provide a certain margin for error.

[0052] In summary, the design of the pin plate 2 improves the flexibility, accuracy and adaptability of the radioactive 125 seed implant auxiliary device through its unique structure and characteristics, and helps to provide patients with better treatment effects.

[0053] The pin board 2 is composed of 4×4 pin blocks 6 , which means that it has 16 pin blocks 6 .

[0054] Some advantages of this design include:

[0055] Improved flexibility: Part or all of the pin blocks 6 may be used according to specific needs to accommodate different treatment situations or tumor sizes, shapes, etc.

[0056] Precise positioning: The second pinhole 4 on each pin block 6 corresponds to the first pinhole 3 on the adhesive patch 1, which helps to implant the radioactive particles more accurately and ensure more accurate irradiation of the tumor.

[0057] Easy to adjust: when the layout or density of the pins needs to be changed, it can be achieved by replacing or adjusting the combination of the pin blocks 6.

[0058] In radioactive particle implantation therapy, the design of the pin plate helps to achieve accurate particle placement, ensure dose accuracy and surgical standardization. At the same time, the elastic stretchability of the connecting wire also enables the pin plate 2 to better adapt to the shape and changes of the treatment site.

[0059] However, the following points need to be noted in practical applications:

[0060] The use and position arrangement of the pin block 6 are determined strictly in accordance with the treatment plan and imaging guidance.

[0061] Ensure the quality and stability of the pin block 6, as well as the elasticity and reliability of the connecting wire.

[0062] During the operation, medical staff must strictly follow relevant procedures to ensure the safety and effectiveness of treatment.

[0063] An outer wrapping sheet 8 is provided on the upper side of the adhesive sheet 1, and the edge of the outer wrapping sheet 8 is fixedly connected to the adhesive sheet 1. An opening 9 for inserting the pin board 2 is formed between the outer wrapping sheet 8 and the adhesive sheet 1. The pin board 2 is adaptively connected between the outer wrapping sheet 8 and the adhesive sheet 1. The outer wrapping sheet 8 is provided with a through hole 10 corresponding to the second pinhole 4. The edge of the outer wrapping sheet 8 is fixedly connected to the adhesive sheet 1, and a specific space is formed between the two. This space provides a position for inserting the pin board 2. It is similar to a structure of a pocket, which has a certain accommodating and fixing function. The opening 9 allows the pin board 2 to be easily inserted between the outer wrapping sheet 8 and the adhesive sheet 1 to achieve adaptive connection.

[0064] The pin plate 2 is connected between the outer wrapping sheet 8 and the adhesive sheet 1. This connection method can effectively fix the position of the pin plate 2 to prevent it from moving or misaligning during use. This is crucial to ensure the accuracy of the puncture needle passing through the needle hole.

[0065] The outer wrapping sheet 8 is provided with a through hole 10 corresponding to the second needle hole 4, which ensures that the puncture needle can smoothly pass through the through hole 10 of the outer wrapping sheet 8, the second needle hole 4 of the pin plate 2 and the first needle hole 3 of the adhesive sheet 1 in sequence to reach the treatment site directly.

[0066] The design of the outer wrapping sheet 8 makes the entire auxiliary device more integrated, improves the convenience and stability of operation, can play a certain protective role on the pin board 2, and reduce the impact of external factors on the pin board 2. It ensures the alignment of the pinholes and the accuracy of the puncture path, thereby improving the therapeutic effect of radioactive 125 seed implantation.

[0067] In conclusion, the design of the outer wrapping sheet 8 plays an important role in the radioactive 125-seed implantation auxiliary device, and helps to improve the accuracy of treatment and the convenience of operation.

[0068] First, an outer wrapping sheet 8 is provided on the upper side of the adhesive sheet 1, and the edge of the outer wrapping sheet 8 is fixedly connected to the adhesive sheet 1, and an opening 9 is formed between the two. The pin board 2 is adapted to be connected between the outer wrapping sheet 8 and the adhesive sheet 1 through the opening 9.

[0069] In this structure, there may be the following fixing methods:

[0070] Friction fixation: The contact between the pin board 2 and the outer wrapping sheet 8 and the adhesive sheet 1 generates sufficient friction, so that the pin board 2 will not move easily without external force.

[0071] Shape-fitting fixation: The shape and size of the pin plate 2 are highly adapted to the space formed between the outer wrapping sheet 8 and the adhesive sheet 1, so that the pin plate 2 can be tightly clamped.

[0072] Slight buckle or slot structure: There may be some small buckle or slot structures between the outer wrapping sheet 8, the adhesive sheet 1 and the pin board 2. When the pin board 2 is inserted, these structures buckle with each other to achieve fixation.

[0073] Fixation by elastic pressure: the outer wrapping sheet 8 or the adhesive sheet 1 may have a certain elasticity. When the pin board 2 is inserted, a certain elastic pressure is applied to the pin board 2 to fix it.

[0074] In summary, the pin board 2 may be fixed on the adhesive sheet 1 by means of friction, shape adaptation, snap-fit ​​and slot structure or elastic pressure, etc. The specific fixing method may depend on the design details and manufacturing process of the auxiliary device.

[0075] The area of ​​the outer wrapping sheet 8 is smaller than that of the adhesive sheet 1 . The outer wrapping sheet 8 is located in the middle of the adhesive sheet 1 and is made of a transparent material.

[0076] This design can save the material cost of the outer wrapping sheet 8 and reduce its influence on the weight and thickness of the overall structure. Placing the outer wrapping sheet 8 in the middle position can better centrally fix the pin board 2 and ensure its stability and accuracy during use.

[0077] When performing radioactive 125-seed implantation, the doctor can clearly see the pin plate 2 and the adhesive sheet 1 below through the transparent outer wrapping sheet 8, so as to perform the puncture operation more accurately. The connection between the pin plate 2 and the adhesive sheet 1, as well as the insertion position and angle of the puncture needle can be observed in real time, so that possible problems can be discovered and corrected in time. The transparent material will not block the doctor's overall observation of the patient's treatment area, which is helpful for comprehensive evaluation of the treatment situation.

[0078] The outer wrapping sheet 8 is smaller in area than the adhesive sheet 1 and is located in the middle. It is made of transparent material. This design takes into account both cost and structural stability, and is easy to operate and monitor, thereby improving the use effect and safety of the radioactive 125 seed implant auxiliary device.

[0079] The second needle hole 4 is detachably connected with a connector 11. This detachable design increases flexibility and replaceability. If the connector 11 is damaged, worn, or needs to be replaced according to different puncture needle specifications, it can be easily operated. The connector 11 is provided with a hole for the puncture needle to pass through. This hole provides an accurate guide and a stable channel for the puncture needle, which helps to ensure the insertion accuracy and stability of the puncture needle. The connector 11 passes through the through hole 10 on the outer wrapping sheet 8. This design enables the connector 11 to better connect with the external puncture operation, reducing the resistance and uncertainty during the puncture process. Improve the puncture accuracy. The existence of the connector 11 and its precise match with the second needle hole 4 further improve the accuracy of the puncture needle passing through and reduce errors. It is easy to operate and adjust. The detachable connector 11 facilitates doctors to choose the appropriate type and specification according to actual conditions to adapt to different treatment needs and puncture needle sizes. Enhance the versatility of the device. Different treatment scenarios may require different puncture needle and connector combinations. This design enables the auxiliary device to better adapt to a variety of situations. In summary, the design of the connector 11 and its matching relationship with the second pinhole 4 and the outer wrapping sheet 8 provide higher accuracy, flexibility and versatility for the radioactive 125 seed implantation operation.

[0080] The material of the outer wrapping sheet 8 generally needs to meet the following requirements:

[0081] Biocompatibility means that it must have no adverse reactions when in contact with human tissues and body fluids, and must not cause allergies, inflammation, or other harmful biological reactions. For example, common medical-grade silicone, polycarbonate, and other materials have good biocompatibility.

[0082] Transparency, as mentioned above, in order to facilitate visual operation and observation, the material needs to have high transparency so that the internal structure and operation conditions can be clearly seen. Medical-grade transparent plastics such as polymethyl methacrylate (PMMA) can meet this requirement.

[0083] Flexibility to adapt to the bending and deformation that may occur when the adhesive patch 1 is attached to the human body surface, while reducing the discomfort to the patient. For example, some soft thermoplastic elastomers (TPE) or polyurethane (PU) materials have good flexibility.

[0084] Strength and durability, able to withstand certain external forces and friction, not easy to break, damage or deform during use, to ensure reliability for multiple uses. High-strength engineering plastics such as polyetheretherketone (PEEK) may be one of the suitable choices.

[0085] Sterility and easy cleaning: The material itself should be easy to disinfect and sterilize to ensure that it is sterile before use and can be easily cleaned after use. Many medical-grade polymer materials have this property.

[0086] Chemical stability means that the material's properties will not change significantly or release harmful substances when exposed to drugs, body fluids, and other possible chemicals.

[0087] The low friction coefficient reduces the friction between the connector 11 and the pin board 2, ensuring smooth operation.

[0088] In conclusion, the selection of the material of the outer wrapping sheet 8 needs to comprehensively consider the above factors to ensure that it plays a good role in the radioactive 125 seed implantation auxiliary device and ensures the safety and effectiveness of the treatment.

[0089] The connector 11 is threadedly connected to the second pinhole 4. The threaded connection provides a reliable mechanical connection to ensure that the connector 11 will not easily loosen or fall off in the second pinhole 4. By rotating the connector 11, its depth and position in the second pinhole 4 can be adjusted to achieve the best fixing effect. An annular clamping piece 12 is provided on the outer wall of the connector 11. When the connector 11 and the second pinhole 4 are screwed together, the outer wrapping sheet 8 is fixedly clamped between the clamping piece 12 and the pin block 6 to form a clamping fixation. When the connector 11 and the second pinhole 4 are screwed together, the clamping piece 12 can fix the outer wrapping sheet 8 between it and the pin block 6. This increases the connection stability between the outer wrapping sheet 8 and the pin board 2, and prevents the outer wrapping sheet 8 from moving or deforming during use. The annular clamping piece 12 can evenly distribute the pressure when clamping the outer wrapping sheet 8, avoiding damage or deformation of the outer wrapping sheet 8 due to excessive local pressure. The operator can easily achieve clamping and fixing by rotating the connector 11, and the operation is simple and quick.

[0090] The above-mentioned clamping and fixing method has the following advantages:

[0091] The stability of the overall structure is improved, and a tight connection between the outer wrapping sheet 8, the connector 11 and the pin board 2 is ensured to form a stable whole, which is beneficial to improving the accuracy and safety of the radioactive 125 particle implantation operation.

[0092] The device has strong adaptability and can adapt to different thicknesses of the outer wrapping sheet 8, and can achieve appropriate clamping strength by adjusting the thread. For example, in actual operation, if the thickness of the outer wrapping sheet 8 is slightly different, the degree of clamping can be flexibly adjusted by rotating the connector 11 to ensure the normal use of the device.

[0093] In summary, the threaded connection between the connector 11 and the second pinhole 4 and the arrangement of the clamping piece 12 provide an effective, stable and easy-to-operate fixing method, which is of great significance for the normal operation of the radioactive 125 seed implantation auxiliary device.

[0094] The upper end of the connector 11 is a cone that is larger at the top and smaller at the bottom. The inner diameter of the connector 11 remains unchanged. The upper end of the connector 11 is provided with a slot 13 that runs through the inner and outer sides and the upper end thereof. There are multiple slots 13, and the multiple slots 13 are arranged at circumferential intervals on the connector 11. A locking sleeve 14 is threadedly connected to the connector 11. When the puncture needle is inserted into the connector 11, the locking sleeve 14 is rotated upward, and the locking sleeve 14 can gradually converge the upper end of the connector 11 to clamp and fix the puncture needle. The multiple slots 13 arranged at circumferential intervals enable the upper end of the connector 11 to have the ability to deform elastically. When there is no external constraint, the slots 13 make the upper end of the connector 11 relatively loose; and when subjected to external force, such as the squeezing of the locking sleeve 14, it can achieve convergence and deformation.

[0095] After the puncture needle is inserted into the connector 11, the locking sleeve 14 is rotated upward. Since the locking sleeve 14 is threadedly connected to the connector 11, as it rotates, the locking sleeve 14 gradually moves upward and squeezes the tapered portion of the connector 11. The squeezed upper end of the connector 11 will gradually contract due to the presence of the slot 13, thereby tightly clamping the puncture needle.

[0096] The clamping force is adjustable, and the clamping tightness can be flexibly controlled according to the specific situation and operation requirements of the puncture needle. The stability of the puncture needle during operation is ensured to avoid shaking or displacement, thus improving the accuracy and safety of the operation.

[0097] For example, if the diameter of the puncture needle is small, by properly tightening the locking sleeve 14, it can be ensured that the connector 11 has sufficient clamping force on the puncture needle; conversely, if the diameter of the puncture needle is large, the locking sleeve 14 can be fine-tuned to avoid excessive clamping that may cause deformation or damage to the puncture needle.

[0098] The overall effect of this design is that during the radioactive 125 seed implantation process, the synergistic effect of the connector 11, the slot 13 and the locking sleeve 14 achieves reliable fixation and flexible adjustment of the puncture needle, providing a strong guarantee for the smooth progress of the operation.

[0099] It also includes a binding strip 15, which is in the shape of a long strip. The binding strip 15 is made of elastic material. This time, the binding strip 15 is located on the upper side of the outer wrapping sheet 8. The two ends of the binding strip 15 are respectively fixedly connected to the adhesive sheet 1. The two ends of the binding strip 15 are located on both sides of the outer wrapping sheet 8. When the pin plate 2 is placed between the outer wrapping sheet 8 and the adhesive sheet 1, the binding strip 15 can be elastically tightened on the outer wrapping sheet 8 and the pin plate 2. The long strip shape allows the binding strip 15 to span a larger area of ​​the outer wrapping sheet 8 and the pin plate 2, providing a more uniform binding force. Similar to a long strip bandage, pressure can be applied over a larger range. Made of elastic material, it can generate a rebound force after stretching, thereby achieving a tightening effect on the pin plate 2 and the outer wrapping sheet 8. Common elastic materials such as rubber, spandex, etc. have good stretch properties.

[0100] The restraint strip 15 is located on the upper side of the outer wrapping sheet 8, and its two ends are respectively fixed on the adhesive sheet 1 and located on both sides of the outer wrapping sheet 8. This position layout enables the restraint strip 15 to effectively cover and restrain the junction between the outer wrapping sheet 8 and the pin board 2. When the pin board 2 is placed between the outer wrapping sheet 8 and the adhesive sheet 1, the elastic tightening effect of the restraint strip 15 can further enhance the fixing effect of the pin board 2. It prevents the pin board 2 from accidentally falling out or shifting during operation, ensuring the accuracy and safety of radioactive 125 seed implantation.

[0101] The restraining strip 15 provides additional fixing force for the pin plate 2, and cooperates with other fixing methods (such as the connection between the outer wrapping sheet 8 and the adhesive sheet 1, the clamping of the connector 11, etc.), greatly improving the stability of the entire device. Due to its elastic characteristics, it can adapt to changes in the size or thickness of the pin plate 2 within a certain range and maintain an effective restraining effect. No complicated operating steps are required, and tightening and fixing can be achieved by relying on its own elasticity. In actual medical operations, if the patient's body moves slightly or is slightly impacted by the outside, the elastic tightening effect of the restraining strip 15 can effectively buffer these effects and keep the position of the pin plate 2 unchanged.

[0102] In summary, the design of the restraining strip 15 plays an important auxiliary fixation role in the radioactive 125 seed implantation auxiliary device, and helps to improve the reliability and safety of the treatment process.

[0103] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A radioactive 125-seed implantation auxiliary device, characterized in that: It comprises an adhesive sheet (1) and a pin board (2); The adhesive sheet (1) is made of a flexible material, and a plurality of first needle holes (3) are distributed on the adhesive sheet (1); A plurality of second pinholes (4) are distributed on the pin board (2), and the second pinholes (4) are arranged corresponding to the first pinholes (3); The pin board (2) and the adhesive sheet (1) are detachably connected.

2. The radioactive 125-seed implantation auxiliary device according to claim 1, characterized in that: The adhesive sheet (1) is a sheet material, an adhesive layer is provided on the lower side of the adhesive sheet (1), a release paper layer (5) is provided on the adhesive layer, and the pin board (2) is connected to the upper side of the adhesive sheet (1).

3. The radioactive 125-seed implantation auxiliary device according to claim 2, characterized in that: The pin board (2) is composed of a plurality of pin blocks (6), the number and positions of the pin blocks (6) are arranged corresponding to the number and positions of the first pin holes (3), and the second pin holes (4) are arranged on the pin blocks (6).

4. The radioactive 125-seed implantation auxiliary device according to claim 3, characterized in that: A plurality of pin blocks (6) are connected in series and fixed via connecting wires.

5. The radioactive 125-seed implantation auxiliary device according to claim 4, characterized in that: The connecting line can be elastically stretched.

6. The radioactive 125-seed implantation auxiliary device according to claim 4, characterized in that: An outer wrapping sheet (8) is provided on the upper side of the adhesive sheet (1), the edge of the outer wrapping sheet (8) is fixedly connected to the adhesive sheet (1), an opening (9) for inserting the pin plate (2) is formed between the outer wrapping sheet (8) and the adhesive sheet (1), the pin plate (2) is adapted to be connected between the outer wrapping sheet (8) and the adhesive sheet (1), and a through hole (10) corresponding to the second pinhole (4) is provided on the outer wrapping sheet (8).

7. The radioactive 125-seed implantation auxiliary device according to claim 6, characterized in that: A connector (11) is detachably connected to the second needle hole (4), and a hole is provided on the connector (11) for the puncture needle to pass through. The connector (11) passes through the through hole (10).

8. The radioactive 125-seed implantation auxiliary device according to claim 7, characterized in that: The connecting head (11) is threadedly connected to the second pinhole (4), and an annular clamping sheet (12) is provided on the outer wall of the connecting head (11). When the connecting head (11) and the second pinhole (4) are threadedly tightened, the outer wrapping sheet (8) is fixedly clamped between the clamping sheet (12) and the pin block (6).

9. The radioactive 125-seed implantation auxiliary device according to claim 6, characterized in that: The upper end of the connector (11) is in the shape of a cone with a larger upper portion and a smaller lower portion. The upper end of the connector (11) is provided with a slot (13) penetrating the inner and outer sides and the upper end thereof. A plurality of slots (13) are provided. The plurality of slots (13) are arranged at intervals in the circumferential direction of the connector (11). A locking sleeve (14) is threadedly connected to the connector (11).

10. The radioactive 125-seed implantation auxiliary device according to claim 6, characterized in that: It also includes a binding strip (15), wherein the binding strip (15) is located on the upper side of the outer wrapping sheet (8), and the two ends of the binding strip (15) are respectively fixedly connected to the adhesive sheet (1), and the two ends of the binding strip (15) are located on both sides of the outer wrapping sheet (8).

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