阅读说明：本技术 一种热塑模定位模板及其定位方法 (Thermoplastic mold positioning template and positioning method thereof ) 是由 林盛 石翔翔 陈仁金 庞皓文 唐涛 于 2019-10-14 设计创作，主要内容包括：本发明公开了一种热塑模定位模板及其定位方法,包括底板、塑性模板和热塑模板,所述塑性模板和底板可拆卸连接,所述塑性模板与病患卧姿体型配合,所述热塑模板与病患身体贴合并横跨病患与所述底板可拆卸连接,所述热塑模板上可拆卸安装有插植针模板,通过其定位方法,通过上下固定的方式能保持患者和插植针模板之间相对位置的固定,避免患者呼吸对插植针模板的震动影响,保证了插值位置的精确性,避免重复插针对患者的伤害。(The invention discloses a thermoplastic mold positioning template and a positioning method thereof, wherein the thermoplastic mold positioning template comprises a bottom plate, a plastic template and a thermoplastic template, the plastic template is detachably connected with the bottom plate, the plastic template is matched with a prone position of a patient, the thermoplastic template is attached to the body of the patient and stretches across the patient to be detachably connected with the bottom plate, and an inserting needle template is detachably mounted on the thermoplastic template.)

1. A thermoplastic mold locating template is characterized in that: including bottom plate (1), plastic template (2) and thermoplastic template (3), plastic template (2) and bottom plate (1) can be dismantled and be connected, plastic template (2) and the cooperation of disease prone position size, thermoplastic template (3) and disease body laminating and span the disease with bottom plate (1) can be dismantled and be connected, demountable installation has the needle template of inserting planting (4) on thermoplastic template (3).

2. The thermoplastic mold locating template of claim 1, wherein: a groove (101) is formed in the bottom plate (1), and a convex block (201) matched with the groove (101) is installed on the bottom surface of the plastic template (2).

3. The thermoplastic mold locating template of claim 1, wherein: four sockets (102) are respectively arranged at two side ends of the bottom plate (1), the four sockets (102) are divided into two groups which are symmetrically distributed at two side ends of the bottom plate (1), and plugs (301) matched with the sockets (102) are arranged at two ends of the thermoplastic template (3).

4. The thermoplastic mold locating template of claim 3, wherein: four jacks (103) which are longitudinally arranged are arranged in the length direction of the socket (102).

5. The thermoplastic mold locating template of claim 1, wherein: the thermoplastic template (3) is provided with a mounting opening (302), mortises (401) are formed in the periphery of the inserting needle template (4), and tenons (303) matched with the mortises (401) are arranged on the side wall of the mounting opening (302).

6. The thermoplastic mold locating template of claim 5, wherein: insert and plant and install lock needle mechanism on needle template (4), lock needle mechanism includes a plurality of installations and is in insert plant on the template external screw thread needle way (5) and with external screw thread needle way (5) screw-thread fit inserts and plants needle installation department (6), insert plant the needle with insert and plant needle installation department (6) fixed connection.

7. The thermoplastic mold locating template of claim 1, wherein: the plastic template (2) is a plastic template (2) made of a vacuum pad or foamed plastic.

8. A method of positioning a thermoplastic mold positioning template, characterized in that positioning is performed using the thermoplastic mold positioning template of any of claims 1-7, comprising the steps of:

s1, customizing a plastic template (2), pre-judging an interpolation or puncture part of the patient, and customizing the plastic template (2) according to the sleeping posture of the patient;

s2, installing the plastic template (2), fixing the patient on the plastic template (2), and installing the plastic template (2) on the bottom plate (1).

S3, determining an accurate interpolation or puncture position, enabling the plastic template (2) with the fixed patient and the bottom plate (1) to enter a CT (computed tomography) scanner together with the patient for scanning, and marking the body surface position of the patient;

s4, heating the thermoplastic template (3), installing the implanting template at the corresponding position of the thermoplastic template (3) according to the mark area of the body surface of the patient, heating the thermoplastic template (3) and installing the thermoplastic template (3) on the bottom plate (1).

Technical Field

The invention relates to the technical field of brachytherapy, in particular to a thermoplastic mold positioning template and a positioning method thereof.

Background

In the brachytherapy and needle biopsy of cancers such as lung cancer, an inserting needle is required to be inserted into a tumor region to perform brachytherapy or accurately position to perform needle biopsy, reasonable needle distribution can maximize the tumor dose and optimally protect surrounding normal tissues, rapid positioning can improve the needle biopsy efficiency, and lesion tissues can be taken out to the maximum extent. At present, the insertion operation and the puncture biopsy are carried out, or the needle arrangement is carried out by the subjective experience of a doctor without tools, and the method has high requirements on the clinical skill of the doctor and strong uncertainty. Or the needle is distributed by adopting a mode of fixing the auxiliary template, the method is convenient to operate and high in reliability, and pre-planning can be implemented, so that a doctor can aim at the needle distribution process. However, this method requires the use of robotic arms, which are very expensive and not affordable by many primary hospitals.

Disclosure of Invention

The invention aims to provide a thermoplastic mold positioning template and a positioning method thereof, which are used for fixing a patient and an insertion needle template to a plastic template by matching with the thermoplastic mold template without adopting a mechanical arm on the premise of ensuring safe, convenient and effective needle distribution, are convenient for doctors to accurately distribute needles and save cost.

The purpose of the invention is realized by the following technical scheme:

a thermoplastic mold positioning template comprises a bottom plate, a plastic template and a thermoplastic template, wherein the plastic template is detachably connected with the bottom plate, the plastic template is matched with a prone position of a patient, the thermoplastic template is attached to the body of the patient and stretches across the patient to be detachably connected with the bottom plate, and an inserting needle template is detachably mounted on the thermoplastic template.

Furthermore, a groove is formed in the bottom plate, and a convex block matched with the groove is installed on the bottom surface of the plastic template.

Furthermore, four sockets are arranged at two side ends of the bottom plate, the four sockets are divided into two groups and symmetrically distributed at the two side ends of the bottom plate, and plugs matched with the sockets are arranged at two ends of the thermoplastic template.

Furthermore, four jacks which are longitudinally arranged are arranged in the length direction of the socket.

Furthermore, the thermoplastic template is provided with a mounting opening, mortises are formed around the inserting needle template, and tenons matched with the mortises are arranged on the side wall of the mounting opening.

Further, insert and plant and install lock needle mechanism on the needle template, lock needle mechanism includes a plurality of the installations insert plant on the template external screw thread needle way and with external screw thread needle way screw-thread fit inserts plant the needle installation department, insert plant the needle with insert plant needle installation department fixed connection.

Further, the plastic template is a plastic template made of a vacuum pad or foamed plastic.

The method for positioning the thermoplastic mold positioning template is characterized in that the thermoplastic mold positioning template is used for positioning, and comprises the following steps:

s1, customizing a plastic template, pre-judging the interpolation or puncture part of the patient, and customizing the plastic template according to the sleeping posture of the patient;

s2, installing the plastic template, fixing the patient to the plastic template, and installing the plastic template on the base plate.

S3, determining an accurate interpolation or puncture position, enabling the plastic template and the bottom plate with the fixed patient to enter a CT (computed tomography) scanner together with the patient for scanning, and marking the body surface position of the patient;

and S4, heating the thermoplastic template, installing the implanting template at the corresponding position of the thermoplastic template according to the mark area of the body surface of the patient, heating the thermoplastic template and installing the thermoplastic template on the bottom plate.

The invention has the beneficial effects that:

1) according to the thermoplastic mold positioning template, the plastic template and the bottom plate as well as the thermoplastic template and the bottom plate are detachably connected, so that a doctor and a technician can conveniently operate the thermoplastic mold positioning template; the plasticity template can be customized according to patient's body appearance, can laminate patient's health and fix the lower of accomplishing the disease on the bottom plate with better through the plasticity template, the thermoplasticity template has the thermoplasticity and heats to about 65 and become soft, can carry out individuation moulding, paste in the patient surface, harden after the moulding cooling according to patient's body surface profile, again will insert and plant the needle template and install and play the fixed action on the thermoplasticity template, accomplish going up of disease fixed, can keep patient and insert the fixed of relative position between the needle template through the mode of fixing from top to bottom, avoid patient's breathing to inserting the vibrations influence of planting the needle template, the accuracy nature of interpolation position has been guaranteed, avoid repeated contact pin to the injury of patient.

2) The thermoplastic mold positioning template is low in cost and easy to operate, and brings great convenience to primary hospitals which are difficult to purchase mechanical arms.

Drawings

FIG. 1 is a schematic view of a patient-mounted, in-use position of a thermo-molding locating template of the present invention;

FIG. 2 is a schematic structural view of a plastic template of the present invention;

FIG. 3 is a schematic structural diagram of the base plate of the present invention;

FIG. 4 is a schematic view of a socket structure of the base plate of the present invention;

FIG. 5 is a schematic view of the bottom structure of the plastic form of the present invention;

FIG. 6 is a schematic structural view of a thermoplastic template of the present invention;

FIG. 7 is a schematic structural view of the insertion needle template of the present invention;

in the figure, 1-bottom plate, 101-groove, 102-socket, 103-jack, 2-plastic template, 201-lug, 3-thermoplastic template, 301-plug, 302-mounting hole, 303-tenon, 4-planting needle template, 401-mortise, 5-external thread needle channel and 6-planting needle mounting part.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.