3D guide template

Abstract

The invention discloses a 3D guide template, and belongs to the technical field of tumor radiotherapy. The 3D guide template comprises a template body, a plurality of puncture holes used for being matched with puncture needles are formed in the template body, a plurality of adjusting holes are formed in the template body, and the 3D guide template further comprises two bridle connecting pieces which are fixedly arranged at the two ends of the template body respectively and connected with the two ends of a bridle respectively. The binding part is used for binding the template body on the body surface of a patient; and the multiple adjusting assemblies correspond to the multiple adjusting holes in a one-to-one mode, and each adjusting assembly comprises a threaded rotary knob arranged in the corresponding adjusting hole. When the 3D guide template puncture needle is implanted, puncture is easier, the operation convenience of implanting particles is improved, the position between the template body and the human body can be adjusted, the error between the template body and the body shape of a patient is reduced, the accuracy of implanting particles is improved, the surgical risk is reduced, and rehabilitation of the patient is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of tumor radiotherapy, and in particular to a 3D guiding template. Background Art

[0002] As a local treatment method for tumors, particle implantation plays an increasingly important role in tumor treatment.

[0003] Precision medicine emphasizes the development of personalized treatment plans based on individual differences of patients to improve treatment effects and reduce side effects. In particle implantation therapy, accurate positioning of tumor target areas and precise control of the location and dose of particle implantation are the keys to achieving precision medicine.

[0004] With the continuous advancement of medical imaging technology, such as CT, MRI and ultrasound, although it can provide more accurate tumor positioning and anatomical structure information for particle implantation, in clinical practice, doctors have found that during the traditional particle implantation process, patients are affected by objective factors such as respiratory movement, relatively soft tissue and rib obstruction, which causes the puncture needle to not remain parallel. During the puncture of liver tumor particle implantation, the puncture needle may be offset due to the operator's subjective factors and objective factors such as chest respiratory movement, relatively soft liver tissue and rib obstruction, making the spatial distribution position of the radioactive particles uncontrollable, or the puncture PTC needle deviates from the predetermined puncture channel and punctures and damages important tissues and organs such as the trachea, blood vessels, esophagus, and heart, thereby affecting the therapeutic effect of radioactive particle implantation on tumors, reducing the safety of interstitial particle implantation, and increasing the surgical risk and the incidence of complications. Summary of the invention

[0005] The purpose of the present invention is to overcome the problems in the prior art. The 3D guided template puncture needle provided makes puncture easier during implantation, improves the convenience of implanting particles, and can adjust the position between the template body and the human body, reduce the error between the template body and the patient's body shape, improve the accuracy of implanted particles, reduce surgical risks, and facilitate patient recovery.

[0006] The present invention provides a 3D guiding template including a template body, the template body having a plurality of puncture holes for cooperating with a puncture needle, the template body being provided with a plurality of adjustment holes, the 3D guiding template also including: two strap connectors, respectively fixedly arranged at the two ends of the template body, the two strap connectors respectively connecting the two ends of the strap, so as to realize binding the template body to the patient's body surface; a plurality of adjustment components, corresponding one by one to the plurality of adjustment holes, each adjustment component including: a threaded knob, arranged in the adjustment hole, the threaded knob being used to change the relative position between the threaded knob and the template body; a contact plate, connected to the end of the threaded knob close to the patient's skin, so as to squeeze the human body surface and tighten the patient's skin.

[0007] Preferably, each adjustment component also includes: a threaded sleeve having an internal thread, which is inserted into the adjustment hole, and a threaded knob is threadably matched with the threaded sleeve; an annular plate, which is fixedly sleeved on the end of the threaded sleeve close to the patient's skin; a capsule sleeve, which is connected to the circumferential edge of the annular plate, and a side of the capsule sleeve away from the threaded knob is fixedly connected to the contact plate; and a capsule body, which is located inside the capsule sleeve, and the outer surface of the capsule body abuts against the end of the threaded knob.

[0008] Preferably, the sac body has an inflation port, and the inflation port is matched with a plug body.

[0009] Preferably, the surface of the contact plate close to the patient's body has a plurality of anti-slip grooves for increasing friction.

[0010] Preferably, the template body has a plurality of fixing sleeves corresponding to the puncture holes one by one, the fixing sleeves are coaxially arranged with the puncture holes, a guide sleeve is inserted into the fixing sleeve, the guide sleeve has a boss, a scoring protrusion is fixed on the boss, and the tip of the scoring protrusion abuts against the end face of the fixing sleeve to leave a scratch on the end face of the fixing sleeve.

[0011] Preferably, a connecting sleeve is provided on the outer periphery of the fixed sleeve, a ball joint shell is fixedly provided on the connecting sleeve, a hinge ball is rotatably connected to the inner wall of the ball joint shell, the hinge ball has a through hole, the through hole is used to pass the puncture needle, and the inner wall of the connecting sleeve has a scratched inner edge that can leave scratches on the outer periphery of the fixed sleeve.

[0012] Preferably, the hinge housing has a threaded hole, a stud is threadedly connected to the threaded hole, and tightening the stud can make the end of the stud abut against the hinge ball, thereby fixing the angle of the hinge ball and the puncture needle.

[0013] Preferably, the axial cross-section of the puncture hole is trapezoidal, and the puncture hole has a large end and a small end, and the large end is close to the patient's body surface.

[0014] Preferably, the template body has a plurality of lightweight holes and positioning holes for reducing weight.

[0015] Preferably, the template body is customized by 3D printing and can also be produced in batches.

[0016] Compared with the prior art, the beneficial effects of the present invention are: a strap connector of the 3D guiding template of the present invention is connected to one end of the strap, the template body is placed on the patient's body surface, and then the other end of the strap is passed around the patient's body and connected to another strap connector, so that the template body is tied to the patient's body; the strap of the 3D guiding template can fix the template body on the patient's body surface, and at the same time, through the threaded knobs on each adjustment component of the knob, the contact plate is squeezed into the human body surface, which can tighten and support the patient's skin surface, which can not only make the skin in the puncture area have a certain tightness, making it easier to puncture when the puncture needle is implanted, and improving the convenience of operation of implanted particles, but also can adjust the position between the template body and the human body, reduce the error between the template body and the patient's body shape, improve the accuracy of implanted particles, reduce surgical risks, and facilitate patient recovery. At the same time, by adjusting the various adjustment components, the error between the patient's body shape and the template body can be overcome to a certain extent, avoiding the problem of having to specially make a template body for a specific patient each time. The template body can be standardized and prefabricated in a wider range, and can meet the guidance of patients with different body surface morphologies or different body surface parts of the same patient, making the template body more applicable and able to perform particle implantation surgery on patients in a short time, reducing the waiting period for surgery and avoiding the problem of the patient's condition worsening due to waiting for the template body to be made. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention; Figure 2 for Figure 1 Sectional view at AA in the middle; Figure 3 for Figure 2 A partial enlarged view of point B in the middle; Figure 4 It is a partial schematic diagram of the adjustment component of the present invention; Figure 5 for Figure 4 A cross-sectional view of Figure 6 is a schematic diagram of a template body of the present invention; Figure 7 for Figure 1 The main view; Figure 8 for Figure 7 Sectional view at CC; Fig. 9 for Figure 8 Sectional view at D in the middle; Fig.10 for Figure 7 Sectional view at EE; Fig.11 for Fig.10Sectional view at F in the middle; Fig.12 is a cross-sectional view of a ball joint housing of the present invention; Fig.13 for Figure 1 A partial enlarged view of the G in the middle; Fig.14 is a schematic diagram of an articulated ball of the present invention; Fig.15 It is a first modeling schematic diagram of the present invention; Fig.16 This is a second modeling schematic diagram of the present invention.

[0018] Description of reference numerals: 1. Template body, 2. Puncture needle, 3. Fixing sleeve, 4. Adjustment hole, 5. Strap connector, 6. Adjustment assembly, 7. Threaded knob, 8. Contact plate, 9. Threaded sleeve, 10. Ring plate, 11. Bag sleeve, 12. Bag body, 13. Inflation port, 14. Plug body, 15. Anti-slip groove, 16. Guide sleeve, 17. Score protrusion, 18. Connecting sleeve, 19. Ball joint shell, 20. Articulated ball, 21. Stud, 22. Score inner edge, 23. Threaded hole, 24. Lightweight hole, 25. Positioning hole. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment 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.

[0020] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. "Include" or "comprises" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Inside", "outside", "upper", "lower", "far", "near", "front", "back", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] The drawings in the present invention are not drawn strictly according to the actual scale, and the specific size and quantity of each structure can be determined according to actual needs. The drawings described in the present invention are only schematic diagrams of the structures.

[0022] The present invention provides a 3D guide template such as Figure 1-Figure 6 and Figure 15-16 The template body 1 includes a plurality of puncture holes for cooperating with the puncture needle 2, and the template body 1 is provided with a plurality of adjustment holes 4. The 3D guide template also includes: two strap connectors 5, which are respectively fixedly arranged at the two ends of the template body 1, and the two strap connectors 5 are respectively connected to the two ends of the strap, so as to realize tying the template body 1 to the patient's body surface; a plurality of adjustment components 6, which correspond to the plurality of adjustment holes 4 one by one, and each adjustment component 6 includes: a threaded knob 7, which is arranged in the adjustment hole 4, and the threaded knob 7 is used to change the relative position between the threaded knob 7 and the template body 1; a contact plate 8, which is connected to the end of the threaded knob 7 close to the patient's skin, and is used to squeeze the human body surface and tighten the patient's skin. The threaded knob 7 has a self-locking function after being rotated, which can maintain the current position, and the operation is simple and the effect is stable.

[0023] A strap connector 5 of the 3D guide template of the present invention is connected to one end of the strap, and the template body 1 is placed on the patient's body surface, and then the other end of the strap is passed around the patient's body and connected to another strap connector 5, so that the template body 1 is tied to the patient's body; due to changes in the patient's body shape, changes in the chest cavity due to breathing movements, etc., there is a deviation between the template body 1 and the human body surface, causing the puncture position of the puncture needle to shift. The strap of the 3D guide template can fix the template body 1 on the patient's body surface, and at the same time, through the threaded knob 7 on each knob adjustment component 6, the contact plate 8 squeezes the human body surface, which can tighten and support the patient's skin surface, which can not only make the skin in the puncture area have a certain sense of tightness, making it easier to puncture when the puncture needle is implanted, thereby improving the convenience of operation of implanted particles, but also can adjust the position between the template body 1 and the human body, reduce the error between the template body 1 and the patient's body shape, improve the accuracy of implanted particles, reduce surgical risks, and facilitate patient recovery. At the same time, by adjusting each adjustment component 6, the error between the patient's body shape and the template body 1 can be overcome to a certain extent, thereby avoiding the problem of having to specially make the template body 1 for a specific patient each time. The template body 1 can be standardized and prefabricated in a wider range, and can meet the guidance of patients with different body surface morphologies or different body surface parts of the same patient, making the template body 1 more applicable, and being able to perform particle implantation surgery on patients in a short time, reducing the waiting period for the surgery, and avoiding the problem of the patient's condition worsening due to waiting for the production of the template body 1.

[0024] In this embodiment, Figure 3-Figure 5Each adjustment component 6 also includes: a threaded sleeve 9, which has an internal thread and is inserted into the adjustment hole 4, and the threaded knob 7 is threadedly matched with the threaded sleeve 9; a ring plate 10, which is fixedly sleeved on the end of the threaded sleeve 9 close to the patient's skin; a capsule 11, which is connected to the circumferential edge of the ring plate 10, and the side of the capsule 11 away from the threaded knob 7 is fixedly connected to the contact plate 8; a capsule body 12, which is located inside the capsule body 11, and the outer surface of the capsule body 12 abuts against the end of the threaded knob 7.

[0025] Screw in the threaded knob 7, which squeezes the capsule 12, causing the capsule 12 to expand to push the capsule cuff 11 to expand in all directions, so that the capsule cuff 11 contacts the edge of the contact plate 8, thereby changing the distance between the template body 1 and the patient's body surface, so that the patient's body surface is subjected to a larger squeezing force area and a smaller local pressure, thereby improving the patient's comfort.

[0026] In this embodiment, Figure 3-Figure 5 The bladder body 12 is provided with an inflation port 13 , and the inflation port 13 is matched with a plug body 14 .

[0027] The balloon 12 can be inflated through the inflation port 13 , and the plug 14 can prevent gas leakage.

[0028] In this embodiment, Figure 4 The surface of the contact plate 8 close to the patient's body has a plurality of anti-slip grooves 15 for increasing friction.

[0029] The contact plate 8 contacts the patient's body surface after being pressed, and the patient's skin is embedded in the anti-slip groove 15, thereby increasing the friction with the patient's skin and preventing slippage.

[0030] In this embodiment, Figure 7-Figure 9 The template body 1 has a plurality of fixing sleeves 3 corresponding to the puncture holes one by one, the fixing sleeve 3 is coaxially arranged with the puncture holes, a guide sleeve 16 is inserted in the fixing sleeve 3, the guide sleeve 16 has a boss, a scoring protrusion 17 is fixed on the boss, and the tip of the scoring protrusion 17 abuts against the end face of the fixing sleeve 3, so as to leave a scratch on the end face of the fixing sleeve 3.

[0031] The guide sleeve 16 is inserted into the fixed sleeve 3, and then the puncture needle 2 is inserted into the guide sleeve 16 and the puncture hole to perform particle implantation. After the operation is completed, the tip of the scoring protrusion 17 squeezes the end surface of the fixed sleeve 3, leaving scratches on the end surface of the fixed sleeve 3 and forming a mark to indicate that the puncture hole has been used and the patient has been implanted with particles, thereby avoiding the problem of misremembering and improving safety.

[0032] As another implementation method in this embodiment, Figure 10-Figure 14The outer periphery of the fixed sleeve 3 is provided with a connecting sleeve 18, on which a ball joint shell 19 is fixedly provided, and the inner wall of the ball joint shell 19 is rotatably connected with a hinge ball 20, and the hinge ball 20 has a through hole, which is used to pass the puncture needle 2, and the inner wall of the connecting sleeve 18 has a scored inner edge 22 that can leave scratches on the outer periphery of the fixed sleeve 3.

[0033] When the doctor inserts the puncture needle 2 into the through hole on the articulated ball 20, the doctor can rotate the puncture needle 2 and the articulated ball 20 to change the angle of the puncture needle 2 and the particle implantation. At the same time, since the scored inner edge 22 contacts the outer periphery of the fixed sleeve 3, scratches can be left on the outer periphery of the fixed sleeve 3 as a mark to indicate that this point has been used or particle implantation has been performed, thereby avoiding the problem of the doctor remembering it wrongly.

[0034] In this embodiment, Figure 12-13 The hinge housing 19 has a threaded hole 23 , and a stud 21 is threadedly connected to the threaded hole 23 . Tightening the stud 21 can make the end of the stud 21 abut against the hinge ball 20 , thereby fixing the angle between the hinge ball 20 and the puncture needle 2 .

[0035] Tightening the screw 21 can fix the angle between the hinge ball 20 and the puncture needle 2 .

[0036] In this embodiment, Fig.11 The axial cross section of the puncture hole is trapezoidal, and the puncture hole has a large end and a small end, and the large end is close to the patient's body surface.

[0037] The purpose is to increase the rotation angle of the puncture needle 2.

[0038] In this embodiment, Figure 1 The template body 1 has a plurality of lightweight holes 24 and positioning holes 25 for reducing weight.

[0039] In this embodiment, the template body 1 is customized by 3D printing and can also be produced in batches.

[0040] A method for using a 3D guide template of the present invention is as follows: First, use a strap to tie the template body 1 to a specific position on the patient's body; Then, the threaded knob 7 is rotated to adjust the error between the patient's body surface and the position of the puncture hole on the template body 1; Next, use the puncture needle 2, adaptively rotate the puncture needle 2 to adjust the angle, insert the particles, and leave marks on the fixing sleeve 3; repeat several times until an appropriate amount of particles are inserted; Finally, pull out the puncture needle 2, remove the template body 1, and do the nursing work.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A 3D guide template, comprising a template body (1), the template body (1) having a plurality of puncture holes for cooperating with a puncture needle (2), characterized in that: The template body (1) is provided with a plurality of adjustment holes (4), and the 3D guide template further comprises: Two strap connectors (5) are respectively fixedly arranged at two ends of the template body (1), and the two strap connectors (5) are respectively connected to the two ends of the strap, so as to enable the template body (1) to be tied to the patient's body surface; A plurality of adjustment components (6) corresponding one to the plurality of adjustment holes (4), each adjustment component (6) comprising: A threaded knob (7) is disposed in the adjustment hole (4), wherein the threaded knob (7) is used to change the relative position between the threaded knob (7) and the template body (1); The contact plate (8) is connected to the end of the threaded knob (7) close to the patient's skin and is used to squeeze the human body surface and tighten the patient's skin.

2. A 3D guide template as claimed in claim 1, characterized in that: Each of the adjustment components (6) further comprises: A threaded sleeve (9) having an internal thread and passing through the adjustment hole (4), and a threaded knob (7) and the threaded sleeve (9) are threadably matched; A ring plate (10) fixedly sleeved on an end of the threaded sleeve (9) close to the patient's skin; A bag sleeve (11) connected to the circumferential edge of the ring plate (10), and a side of the bag sleeve (11) away from the threaded knob (7) is fixedly connected to the contact plate (8); The capsule (12) is located inside the capsule sleeve (11), and the outer surface of the capsule (12) abuts against the end of the threaded knob (7).

3. A 3D guide template as claimed in claim 2, characterized in that: The sac body (12) is provided with an inflation port (13), and the inflation port (13) is matched with a plug body (14).

4. A 3D guide template as claimed in claim 1, characterized in that: The surface of the contact plate (8) close to the patient's body is provided with a plurality of anti-slip grooves (15) for increasing friction.

5. A 3D guide template as claimed in claim 1, characterized in that: The template body (1) has a plurality of fixing sleeves (3) corresponding to the puncture holes one by one, the fixing sleeves (3) being coaxially arranged with the puncture holes, a guide sleeve (16) being inserted into the fixing sleeve (3), the guide sleeve (16) having a boss, a scoring protrusion (17) being fixedly arranged on the boss, the tip of the scoring protrusion (17) abutting against the end surface of the fixing sleeve (3) for leaving a scratch on the end surface of the fixing sleeve (3).

6. A 3D guide template as claimed in claim 5, characterized in that: The outer periphery of the fixed sleeve (3) is provided with a connecting sleeve (18), a ball joint outer shell (19) is fixedly provided on the connecting sleeve (18), the inner wall of the ball joint outer shell (19) is rotatably connected to a hinge ball (20), the hinge ball (20) has a through hole, the through hole is used to pass the puncture needle (2), and the inner wall of the connecting sleeve (18) has a scratched inner edge (22) capable of leaving scratches on the outer periphery of the fixed sleeve (3).

7. A 3D guide template as claimed in claim 6, characterized in that: The hinge housing (19) has a threaded hole (23), and a stud (21) is internally threadedly connected to the threaded hole (23). Tightening the stud (21) enables the end of the stud (21) to abut against the hinge ball (20), thereby fixing the angle between the hinge ball (20) and the puncture needle (2).

8. A 3D guide template as claimed in claim 1, characterized in that: The axial cross section of the puncture hole is trapezoidal, and the puncture hole has a large end and a small end, and the large end is close to the patient's body surface.

9. A 3D guide template as claimed in claim 1, characterized in that: The template body (1) is provided with a plurality of lightweight holes (24) and positioning holes (25) for reducing weight.

10. A 3D guide template as claimed in claim 1, characterized in that: The template body (1) is custom-made by 3D printing, and can also be produced in batches.

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