CN113082556A - Embedding guide assembly of afterloading uterine cavity applicator and guide method thereof - Google Patents

Embedding guide assembly of afterloading uterine cavity applicator and guide method thereof Download PDF

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Publication number
CN113082556A
CN113082556A CN202110497777.3A CN202110497777A CN113082556A CN 113082556 A CN113082556 A CN 113082556A CN 202110497777 A CN202110497777 A CN 202110497777A CN 113082556 A CN113082556 A CN 113082556A
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Prior art keywords
catheter
uterine
applicator
patient
strip
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CN202110497777.3A
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Chinese (zh)
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叶奕菁
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Individual
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Individual
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Priority to CN202110497777.3A priority Critical patent/CN113082556A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A61N5/1002—Intraluminal radiation therapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A61N5/1007—Arrangements or means for the introduction of sources into the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A61N5/1014—Intracavitary radiation therapy
    • A61N5/1016—Gynaecological radiation therapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A61N5/1007—Arrangements or means for the introduction of sources into the body
    • A61N2005/1008—Apparatus for temporary insertion of sources, e.g. afterloaders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N2005/1092—Details

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

The invention provides a placing guide component of a post-loading uterine cavity applicator and a guide method thereof, wherein the guide component comprises a uterine sounding strip made of a moldable metal material and a guide pipe made of a flexible material, the guide pipe is provided with a notch for the applicator body to penetrate, the rear end and the front end of the guide pipe are respectively provided with a first perforation for the uterine sounding strip to penetrate and a second perforation for the end part of the applicator body to penetrate out: the guiding method comprises the steps of shaping, primary sleeving, uterine sounding, withdrawing and secondary sleeving. The invention uses the catheter for guiding, is simple and feasible, excellently solves the clinical difficulty that the applicator can not be placed into the cervix of a patient, and simultaneously can protect the patient, thereby effectively preventing the uterus probing strip or the applicator body from damaging the internal tissues of the patient.

Description

Embedding guide assembly of afterloading uterine cavity applicator and guide method thereof
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of medical instruments, in particular to an implantation guide assembly of a rear-mounted uterine cavity applicator and a guide method thereof.
[ background of the invention ]
Statistical analysis shows that patients with early-stage cervical cancer and tumor have no difference in curative effect of radical radiotherapy and operative curative effect, and the local late-stage cervical cancer is treated by radiotherapy as a main treatment means. Radiation therapy for cervical cancer includes external irradiation and brachytherapy (also known as afterloading). At present, three-dimensional intrauterine device combined tissue intercropping is usually adopted for afterloading, and evidence-based medical evidence shows that the curative effect of the three-dimensional intrauterine device combined tissue intercropping is superior to two-dimensional afterloading and three-dimensional afterloading of a pure intrauterine device. The uterine cavity built-in uterine cavity applicator is the basis for implementing three-dimensional afterloading, but the existing uterine cavity applicator only has three anteflexion angles of 15 degrees, 30 degrees and 45 degrees, and for patients with uterine deformity, large anteversion anteflexion angle of the uterus, even 90 degrees, the implementation of the uterine cavity built-in tube is very difficult, and even the applicator cannot be placed into the cervix of the patient, so that the clinical difficulty is caused. In addition, the uterine cavity applicator belongs to high-precision medical instruments, and a single applicator is high in price and cannot be molded, so that the modification cost is high.
[ summary of the invention ]
The invention aims to provide an embedding guide assembly of a rear-mounted uterine cavity applicator and a guide method thereof, which have low cost, are sterile, safe, simple and feasible.
The purpose of the invention is realized as follows:
a putting-in guide assembly of a later-used uterine cavity applicator comprises a uterine sounding strip made of a moldable metal material and a guide pipe made of a flexible material, wherein a notch for the uterine sounding strip to penetrate into is formed in the guide pipe, and a first through hole for the uterine sounding strip to penetrate into and a second through hole for the end part of the uterine applicator body to penetrate out are respectively formed in the rear end and the front end of the guide pipe.
The implantation guide assembly of the afterloading uterine cavity applicator is characterized in that an implantation part is arranged between the notch and the front end of the catheter, and an operation part is arranged between the notch and the rear end of the catheter.
The length of the implantation part is H, and H is more than or equal to 9cm and less than or equal to 10 cm.
The length of the operating part is L, and L is more than or equal to 15cm and less than or equal to 16 cm.
The implantation guide assembly of the afterloading uterine cavity applicator is characterized in that the catheter is made of a silica gel material.
The implantation guide assembly of the afterloading uterine cavity applicator has the pipe diameter of 0.5cm to 0.6 cm.
The guiding method of the implantation guide assembly of the afterloading uterine cavity applicator comprises the following steps: shaping, namely bending and shaping the uterine sounding strip to enable the uterine sounding strip to have a proper anteflexion angle; the shaped uterine sounding strip sequentially penetrates into the operation part and the embedding part of the catheter from the first through hole through the primary sleeve; probing the uterus, wherein a uterus probing strip penetrating into the catheter and the catheter are penetrated into the uterus of the patient together, so that the front end of the catheter is placed into the uterus of the patient; withdrawing the catheter, namely pulling out the uterine sounding strip independently to enable the catheter to be kept in the body of the patient independently; and the secondary sleeve penetrates the applicator body from the notch to the embedding part of the catheter, so that the end part of the applicator body extends out of the second perforation and is embedded into the uterus of the patient.
The guiding method of the implantation guiding assembly of the afterloading uterine cavity applicator can pull the operation part to prevent the implantation part from excessively entering the body of a patient when secondary sleeve or uterine sounding is carried out.
The guiding method of the implantation guiding assembly of the afterloading uterine cavity applicator can press the catheter to prevent the catheter from being withdrawn along with the uterine sounding strip when the catheter is withdrawn.
Compared with the prior art, the invention has the following technical characteristics:
1. the uterine sounding strip is a shapeable metal sounding strip, and the diameter of the uterine sounding strip is slightly smaller than that of the applicator body, so that the success rate of uterine sounding of a patient with large uterine flexibility (larger than 45 degrees) under the guidance of the matched catheter is still high.
2. The guide tube is used for guiding, the clinical difficulty that the source applicator cannot be placed into the cervix of a patient is well solved, and meanwhile, the guide tube can also protect the patient, so that the uterus probing strip or the source applicator body can be effectively prevented from damaging the internal tissues of the patient.
3. The catheter is disposable, and has the advantages of sterility, safety and low cost.
[ description of the drawings ]
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
FIG. 1 is a schematic structural view of a uterine sounding strip according to the present invention;
FIG. 2 is a schematic view of the structure of the catheter of the present invention;
fig. 3 is a schematic structural view of an applicator body with a maximum (45 °) forward flexion angle.
[ detailed description ] embodiments
A rear-mounted implantation guide assembly of a uterine cavity applicator comprises a uterine sounding strip 1 made of a moldable metal material and a guide pipe 2 made of a flexible material, wherein a gap 21 for the uterine applicator body 10 to penetrate through is arranged on the guide pipe 2, and a first through hole 23 for the uterine sounding strip 1 to penetrate through and a second through hole 22 for the end part of the uterine applicator body 10 to penetrate through are respectively arranged at the rear end and the front end of the guide pipe 2.
An embedding part 201 is arranged between the notch 21 and the front end of the catheter 2, and an operation part 202 is arranged between the notch 21 and the rear end of the catheter 2. The length of the embedding part 201 is H, and H is more than or equal to 9cm and less than or equal to 10cm, so that the distance between the cervix and the uterus of most patients is adapted. The length of the operation part 202 is L, and L is more than or equal to 15cm and less than or equal to 16cm, thereby facilitating clinical operation.
The catheter 2 is made of a silica gel material, so that the catheter 2 is more skin-friendly, and the use comfort is improved.
The pipe diameter of the conduit 2 is 0.5cm to 0.6 cm. After the applicator body 10 penetrates into the embedding part 201, the pipe wall of the catheter 2 can limit the clamping boss 101 of the applicator body 10 (the linear length of the position of the clamping boss 101, which is far away from the front end of the applicator body 10, is about 10cm), thereby effectively preventing the applicator body 10 from excessively extending into the body of a patient.
In order to facilitate the insertion of the applicator body 10 into the insertion portion 201 of the catheter 2 through the notch 21, the notch 21 has a wedge shape (a shape of a cut obliquely cut from the rear to the front).
The guiding method of the implantation guiding assembly of the afterloading uterine cavity applicator comprises the following steps:
a: shaping, namely bending and shaping the uterine sounding strip 1 to enable the uterine sounding strip 1 to have a proper anteflexion angle (according to the actual anteversion anteflexion angle of the uterus of a patient, the uterine sounding strip 1 can be bent into 90 degrees, 135 degrees or even larger anteflexion angles);
b: a primary sleeve, wherein the shaped uterine sounding strip 1 sequentially penetrates into the operation part 202 and the embedding part 201 of the catheter 2 from the first perforation 23;
c: a uterus probing step, wherein a uterus probing strip 1 penetrating into a catheter 2 and the catheter 2 are penetrated into the uterus of a patient together, so that the front end of the catheter 2 is placed into the uterus of the patient;
d: withdrawing the catheter, namely pulling out the uterine sounding strip 1 independently to enable the catheter 2 to be kept in the body of the patient independently;
e: and a secondary sleeve, which penetrates the applicator body 10 from the notch 21 to the insertion part 201 of the catheter 2, so that the end part of the applicator body extends out of the second perforation 22 and is inserted into the uterus of the patient.
To prevent the insertion section 202 from entering the patient excessively, the operation section 202 may be pulled during the second cannulation or the uterine sounding.
When the tube is withdrawn, the catheter 2 can be pressed to prevent the catheter from being withdrawn along with the uterine sounding strip 1.
Of course, the present invention may also be configured such that the uterine sounding strip 1 is inserted into the insertion portion 201 and then the uterine sounding strip 1 is shaped, and at this time, the catheter 2 is shaped together with the uterine sounding strip 1.
By the guide assembly and the guide method, the applicator with smaller anteflexion can be quickly placed in the uterus of a patient with larger anteversion anteflexion angle of the uterus, so that the three-dimensional afterloading radiotherapy can be effectively carried out on the specific patient. Notably, the placement of the catheter 2 with the applicator body 10 into the patient has no effect on the completion of the afterloading radiotherapy. After the radiotherapy is finished, the applicator 10 and the catheter 2 can be pulled out together, which is very convenient. The invention is simple and feasible, well solves the clinical problem, and adopts disposable sleeve to be placed, so the cost is low, and the invention is sterile and safe.

Claims (10)

1. The implantation guide assembly of the afterloading uterine cavity applicator is characterized by comprising a uterine sounding strip (1) made of a moldable metal material and a guide pipe (2) made of a flexible material, wherein a notch (21) for the applicator body (10) to penetrate into is arranged on the guide pipe (2), and a first through hole (23) for the uterine sounding strip (1) to penetrate into and a second through hole (22) for the end part of the applicator body (10) to penetrate out are respectively arranged at the rear end and the front end of the guide pipe (2).
2. The insertion guide assembly of a rear-loading uterine cavity applicator as claimed in claim 1, wherein an insertion portion (201) is provided between the notch (21) and the front end of the catheter (2), and an operation portion (202) is provided between the notch (21) and the rear end of the catheter (2).
3. The implantation guide assembly of a afterloading uterine cavity applicator as defined in claim 2, wherein said implantation portion (201) has a length H, and H is 9 cm. ltoreq.H.ltoreq.10 cm.
4. The implantation guide assembly of a afterloading uterine cavity applicator according to claim 2, characterized in that the length of the operating part (202) is L, and 15cm ≦ L ≦ 16 cm.
5. The introduction guide assembly of a rear-loading uterine applicator according to any one of claims 1 to 4, characterized in that the catheter (2) is made of silicone material.
6. The deployment guide assembly of a afterloading uterine applicator according to any one of claims 2 to 4, characterized in that the tube diameter of the catheter (2) is 0.5cm to 0.6 cm.
7. A guiding method of an implantation guide assembly of a rear-mounted uterine cavity applicator is characterized by comprising the following steps:
a: shaping, namely bending and shaping the uterine sounding strip (1) to enable the uterine sounding strip to have a proper anteflexion angle;
b: a primary sleeve, wherein the shaped uterine sounding strip (1) is sequentially penetrated into an operation part (202) and an embedding part (201) of the catheter (2) from the first perforation (23);
c: probing the uterus, wherein a uterus probing strip (1) penetrating into a catheter (2) and the catheter (2) penetrate into the cervix of the patient together, so that the front end of the catheter (2) is placed into the uterus of the patient;
d: withdrawing the catheter, namely independently pulling out the uterine sounding strip (1) to enable the catheter (2) to be independently kept in the body of the patient;
e: and a secondary sleeve, wherein the applicator body (10) is inserted into the insertion part (201) of the catheter (2) from the notch (21), and the end part of the secondary sleeve extends out of the second perforation (22) and is inserted into the uterus of the patient.
8. The method of claim 7, wherein the handle portion (202) is pulled to prevent the insertion portion (202) from entering the patient too much during the second insertion or probing.
9. A method of guiding an introduction guide assembly of a rear loading uterine cavity applicator as claimed in claim 7 or 8, wherein the guide tube (2) is pressed to prevent it from being withdrawn with the uterine sounding strip (1) during withdrawal.
10. A guiding method of an implantation guide assembly of a rear-mounted uterine cavity applicator is characterized by comprising the following steps:
a: a primary sleeve, wherein the uterine sounding strip (1) is sequentially penetrated into the operation part (202) and the embedding part (201) of the catheter (2) from the first perforation (23);
b: shaping, namely bending and shaping the uterine sounding strip (1) penetrating into the catheter (2) to enable the uterine sounding strip to have a proper anteflexion angle;
c: probing the uterus, wherein a uterus probing strip (1) penetrating into a catheter (2) and the catheter (2) penetrate into the cervix of the patient together, so that the front end of the catheter (2) is placed into the uterus of the patient;
d: withdrawing the catheter, namely independently pulling out the uterine sounding strip (1) to enable the catheter (2) to be independently kept in the body of the patient;
e: and a secondary sleeve, wherein the applicator body (10) is inserted into the insertion part (201) of the catheter (2) from the notch (21), and the end part of the secondary sleeve extends out of the second perforation (22) and is inserted into the uterus of the patient.
CN202110497777.3A 2021-05-08 2021-05-08 Embedding guide assembly of afterloading uterine cavity applicator and guide method thereof Pending CN113082556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110497777.3A CN113082556A (en) 2021-05-08 2021-05-08 Embedding guide assembly of afterloading uterine cavity applicator and guide method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110497777.3A CN113082556A (en) 2021-05-08 2021-05-08 Embedding guide assembly of afterloading uterine cavity applicator and guide method thereof

Publications (1)

Publication Number Publication Date
CN113082556A true CN113082556A (en) 2021-07-09

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Application Number Title Priority Date Filing Date
CN202110497777.3A Pending CN113082556A (en) 2021-05-08 2021-05-08 Embedding guide assembly of afterloading uterine cavity applicator and guide method thereof

Country Status (1)

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CN (1) CN113082556A (en)

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