Vagina implantation template

Abstract

The utility model relates to the technical field of medical equipment manufacturing, in particular to a vagina implantation template, which comprises an implantation column and a silicon rubber case sleeved on the outer wall of the implantation column, the shape of the silicon rubber case is matched with that of the implantation column, and the silicon rubber case is a medical silicon rubber case. According to the vagina implantation template provided by the utility model, a certain fixing effect is achieved through the arrangement of the silicon rubber case and the friction force between the silicon rubber case and the implantation needle as well as between the silicon rubber case and the uterine cavity tube, the flexibility of the position and the angle of the implantation needle is increased through the design of the rotatable handle and the selection of different implantation needle channel combinations, the implantation needle can be accurately guided to a specified position, and the operation is convenient. And the distribution uniformity of the implanting needles and the full coverage of the target region are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment manufacturing technical field especially relates to a vaginal implantation template. BACKGROUND

[0002] The brachytherapy is divided into intracavitary brachytherapy (ICBT) and interstitial brachytherapy (ISBT). ICBT is the most common type in the intracavitary brachytherapy of cervical cancer, but for some abnormal anatomical structures, such as vaginal stenosis or uterine body asymmetry, and large tumor, parauterine infiltration, eccentric tumor patients, intracavitary brachytherapy often has the defects such as incomplete target area coverage and poor dose distribution conformity, thereby affecting the prognosis and quality of life of patients. In the late twentieth century, interstitial brachytherapy (ISBT) of cervical cancer gradually rises, can accurately anchor tumor tissue for high-dose irradiation, make up for the deficiency of ICBT, can better cover the clinical target volume, quickly reduce the lump in the short term, achieve the purpose of hemostasis and analgesia, and has good local control rate.

[0003] At present, the foreign implantation treatment mostly adopts vaginal implantation guide plate operation, and the implantation guide plate is mainly used for assisting the accurate insertion of uterine cavity tube and implantation needle into the predetermined position, to ensure that the implant reaches the lesion position accurately, and the existing vaginal implantation guide plate has poor conformability, and the transperineal needle insertion causes great damage and aggravates the discomfort of patients, and the domestic implantation operation is mostly manual, which can be guided under B-ultrasound or CT, and the position of implantation needle is monitored by CT verification, but the repeated needle adjustment increases the pain of patients, and the risk of perforation and bleeding is large, there is certain risk, and the existing implantation guide plate cannot provide sufficient fixing force, the fixing effect in the vagina is poor, deviation occurs in the implantation process, the implantation needle distribution deviates, and then the dose distribution deviates, and the operation freedom is low, the needle placement position is not flexible, the target area cannot be fully covered, the local recurrence rate and the adverse reaction rate of critical organs are increased, and the treatment effect and prognosis of patients are affected. UTILITY MODEL CONTENTS

[0004] In order to solve the technical problems of poor fixing effect of the existing implantation guide plate, implantation needle distribution deviation and inflexible needle placement position, which lead to the target area cannot be fully covered, the utility model provides a vaginal implantation template.

[0005] A vaginal implantation template, comprising an implantation column and a silica gel sleeve sleeved on the outer wall of the implantation column, the implantation column is a cylinder, the shape of the silica gel sleeve is consistent with the shape of the implantation column, and the inner diameter of the silica gel sleeve matches the outer diameter of the implantation column, wherein the silica gel sleeve is a medical silica gel sleeve.

[0006] Further, the implanting column comprises a leading-in end and a leading-out end, the leading-in end is a circular plane, and the leading-out end is a semispherical convex surface.

[0007] Further, the implanting column is provided with a uterine cavity tube channel, and a plurality of implanting needle channels are arranged around the uterine cavity tube channel.

[0008] Further, the uterine cavity tube channel is arranged on the central axis.

[0009] Further, a handle is arranged at the edge of the leading-in end, the handle is connected with the silica gel sleeve, and the handle drives the implanting template to rotate around the central axis of the implanting column.

[0010] Further, the implanting needle channel comprises a straight needle channel and an inclined needle channel, the straight needle channel is arranged at the circular edge of the leading-in end in the circumferential direction, and the inclined needle channel is arranged between the straight needle channel and the uterine cavity tube channel.

[0011] Further, a straight needle inlet of the straight needle channel is arranged on the leading-in end of the implanting column, and a straight needle outlet is arranged on the leading-out end of the implanting column.

[0012] Further, an inclined needle inlet of the inclined needle channel is arranged on the leading-in end of the implanting column, and an inclined needle outlet is arranged on the side wall of the implanting column.

[0013] Further, a mark point is arranged on the inclined needle channel.

[0014] Further, the diameter of the implanting column is 2-3.5 cm, and the length is 4-7 cm.

[0015] Further, the length of the handle is 50 mm, and the width is 9 mm.

[0016] The vaginal implanting template has the advantages that:

[0017] The vaginal implanting template provided by the utility model is of a cylindrical structure, simple to operate, good in patient applicability, and good in fixing effect, can increase the friction force between the implanting template and the vagina, is not easy to slide and deviate, and is provided with a rotatable handle on the leading-in end of the implanting column, can flexibly adjust the position and angle of the implanting needle according to different target area shapes of patients, is provided with different straight needle channels and inclined needle channels on the implanting column, can accurately guide the implanting needle to a specified position, makes the implanting needle uniformly distributed, avoids cold spots of the target area, can treat middle and late stage cervical cancer and patients with irregular target areas, and realizes full coverage. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of a vaginal implanting template structure;

[0019] Figure 2 is a schematic view of the structure of the implanting column;

[0020] Figure 3 is a schematic view of the structure of the leading end of the implanting column;

[0021] Figure 4 is a schematic view of the structure of the implanting column from the side;

[0022] Reference signs:

[0023] 1, implanting column; 2, silica gel sleeve; 3, handle; 4, hysteroscope channel; 5, implanting needle channel; 11, leading end; 12, leading-out end; 31, semicircular groove; 41, first hysteroscope channel; 42, second hysteroscope channel; 43, third hysteroscope channel; 51, straight needle channel; 52, oblique needle channel. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] It should be noted that the various installation methods and technical terms mentioned in the present application are technical terms well known in the art, and therefore will not be described in detail. In addition, the same reference numerals are used for the same components, but this does not affect or should not constitute an accurate understanding of the technical solutions by those skilled in the art.

[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0027] Embodiment 1

[0028] The present embodiment provides a vaginal implanting template, such as Figure 1As shown, including the implant column 1, the silicone sleeve 2 is arranged on the outer wall of the implant column 1, and the handle 3 is arranged on the implant column 1, (according to the elasticity and length of the patient's vagina, different specifications of the implant column can be selected, the cylindrical implant column with a diameter of 3cm and a length of 6cm is used in the embodiment, and the medical TPE silicone sleeve with a thickness of 2-3mm is used, and the handle is a cuboid), wherein the shape of the silicone sleeve 2 is consistent with the shape of the implant column 1, and the inner diameter of the silicone sleeve 2 matches the outer diameter of the implant column 1.

[0029] As shown in Figure 2 The cylindrical implant column 1 is provided with a uterine cavity tube channel 4 on the central axis, the uterine cavity tube channel 4 is a first uterine cavity tube channel 41, a second uterine cavity tube channel 42 and a third uterine cavity tube channel 43, the uterine cavity tube entrances of the first uterine cavity tube channel 41, the second uterine cavity tube channel 42 and the third uterine cavity tube channel 43 are arranged on the lead-in end 11 of the implant column 1, and the uterine cavity tube outlets of the first uterine cavity tube channel 41, the second uterine cavity tube channel 42 and the third uterine cavity tube channel 43 are arranged on the lead-out end 12 of the implant column 1. A semicircular groove 31 is formed in the handle 3, and the semicircular groove 31 is coaxial with the third uterine cavity tube channel 43, and rotating the handle 3 can drive the implant template to rotate around the central axis.

[0030] As shown in Figure 3 And Figure 4 A circle of straight needle channels 51 is arranged on the circular edge of the implant column 1 along the circumferential direction, the straight needle entrances of the straight needle channels 51 are arranged on the lead-in end 11, and the straight needle outlets are arranged on the lead-out end 12. Between the uterine cavity tube channel 4 and the straight needle channel 51, an oblique needle channel 52 is further arranged, the oblique needle channel 52 is mainly distributed between the first uterine cavity tube channel 41 and the third uterine cavity tube channel 43, surrounds the second uterine cavity tube channel 42, and the entrance of the oblique needle channel 52 is provided with a mark point (the mark points of the embodiment are A, B, C, D, E and F) on the semicircular plane of the lead-in end 11, which is used for auxiliary positioning and accurately determining the lead-in position of the implant needle, and the oblique needle entrance of the oblique needle channel 52 is arranged on the lead-in end 11, and the oblique needle outlet is arranged on the side wall of the implant column 1.

[0031] The working principle of the vaginal implant template is as follows:

[0032] Under sterile conditions, the uterine cavity tube is first placed in the uterus in a suitable position, and then the other end of the uterine cavity tube is transmitted through the silicone sleeve from the leading end 12 to the suitable uterine cavity tube passage 4 of the implantation template and the implantation column is gently placed into the vagina, the silicone sleeve 2 increases the friction between the implantation template and the uterine cavity tube, reduces the displacement of the uterine cavity tube and the implantation needle during the treatment process, the relative position and angle of the implantation column 1 and the vagina are adjusted through the handle 3, and then fixed. According to the tumor position and volume determined by CT and other imaging, the appropriate implantation needle passage 5 is selected to be inserted to a certain depth to reach the tumor position through the leading end 11, and when the implantation needle passes through the silicone sleeve, the friction is increased, which can prevent the implantation needle from loosening during the treatment process. Through the straight needle passage 51 and the inclined needle passage 52, the cervix and most of the parametrial tumor positions can be covered, and only by selecting different implantation needle passages 5 and uterine cavity tube passages 4 can the dose distribution be optimized according to different tumor positions, and the radioactive source can be accurately placed near the asymmetric tumor of the target area, so that the implantation needle can realize full coverage of the target area tumor, and through the guidance of the implantation template, the straight needle distribution, the inclined needle distribution and the uterine cavity tube can jointly construct a three-dimensional radioactive source network, and realize comprehensive and accurate treatment effect.

[0033] For those skilled in the art, the utility model is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model; therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model, and any slight modification, equivalent replacement and improvement made according to the technical essence of the utility model to the above embodiment should be included in the protection scope of the technical scheme of the utility model.

Claims

1. A vaginal implant template comprising an implant column (1), characterized in that, The silicone sleeve (2) is matched with the shape of the implantation column (1), and is a medical silicone sleeve.

2. The vaginal implant template of claim 1, wherein, The implantation column (1) comprises a leading end (11) and a leading-out end (12), wherein the leading end (11) is a circular plane, and the leading-out end (12) is a semispherical convex surface.

3. The vaginal implant template of claim 2, wherein, The implantation column (1) is provided with a uterine cavity tube channel (4), and a plurality of implantation needle channels (5) are arranged around the uterine cavity tube channel (4), wherein the number of the uterine cavity tube channel (4) is at least one.

4. The vaginal implant template of claim 3, wherein, The uterine cavity tube channel (4) is arranged on the central axis.

5. The vaginal implant template of claim 2, wherein, An edge of the leading end (11) is provided with a handle (3), wherein the length of the handle (3) is 50 mm, and the width is 9 mm.

6. The vaginal implant template of claim 4, wherein, The implantation needle channel (5) comprises a straight needle channel (51) and an inclined needle channel (52), wherein the straight needle channel (51) is arranged at the circular edge of the leading end (11) in the circumferential direction, and the inclined needle channel (52) is arranged between the straight needle channel (51) and the uterine cavity tube channel (4).

7. The vaginal implant template of claim 6, wherein, The straight needle entrance of the straight needle channel (51) is arranged on the leading end (11) of the implantation column (1), and the straight needle exit is arranged on the leading-out end (12) of the implantation column (1).

8. The vaginal implant template of claim 6, wherein, The inclined needle entrance of the inclined needle channel (52) is arranged on the leading end (11) of the implantation column (1), and the inclined needle exit is arranged on the side wall of the implantation column (1).

9. The vaginal implant template of claim 6, wherein, The inclined needle channel (52) is provided with a mark point at the entrance.

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