CN210249885U - Ultrasonic radiography catheter for uterus oviduct - Google Patents

Abstract

The uterus oviduct ultrasonic radiography catheter is characterized by comprising a catheter head part, a catheter body part, a catheter tail part and a sleeve core, wherein a contrast agent outlet hole is formed in the top end of the catheter head part, a laser marking part is arranged on the tube wall of the catheter head part, a handheld part is arranged at the catheter tail part, a contrast agent injector interface is arranged at the tail end, and the sleeve core is sleeved on the catheter. The position of the arc of the catheter body is provided with a sliding soft piston which can avoid the contrast agent in the uterine cavity from overflowing. The utility model discloses pipe head and pipe body portion all adopt soft polyvinyl chloride material, and is comfortable, safe, and the somatic part designs for the convex device of moulding thickening sclerosis gradually according to the interior anatomy characteristic of cervical canal, and pipe distal end portion is super soft, and superfine cavity metal support cover core is added to the near-end in its inside, easily inserts, is fit for different uterus form characteristics and cervical shape, has reduced the degree of difficulty and the uncomfortable sense of inserting the in-process.

Description

Ultrasonic radiography catheter for uterus oviduct

Technical Field

The utility model belongs to the field of medical equipment, in particular to a uterus oviduct ultrasonic radiography catheter which can be placed in a uterine cavity under the B ultrasonic monitoring.

Background

In order to know the shape of the uterine cavity, whether the fallopian tube is unobstructed and the blockage part, and determine whether the uterine deformity and the type exist, the following two examination methods are generally adopted clinically at present:

(1) hysterosalpingography

The radiation therapy is finished under the coordination of a radiologist, and a patient and an operating doctor feel fear of receiving radiation; according to statistics, 76% of contrast agent examiners with meglumine diatrizoate aqua have allergy phenomena and need allergy tests; the development of the edge part of the uterine tube is not good enough, the fine lesion is not easy to observe, and the inspection accuracy rate only reaches 80%; some patients have irritation pain during drug injection; taking a second photograph after 10-20 minutes or 24 hours after the contrast agent is injected; during examination, the cervical catheter and the external cervical orifice are required to be tightly attached to prevent the contrast agent from flowing into the vagina; if the cervical catheter is inserted too deeply, the uterus is easily damaged.

(2) Hysterosalpingography

The ultrasonic radiography can be completed in an ultrasonic chamber of a reproductive medicine center, the trauma of B ultrasonic is small, and the examination can be repeated in one period. However, during examination, a double-cavity hysterosalpingography catheter needs to be inserted, the overall appearance of the uterine cavity and the internal condition of the fallopian tube cannot be seen, if the cervical catheter is not tightly contacted with the external opening of the cervix, the contrast agent is easy to flow outwards, although the flowing-out condition of the contrast agent can be dynamically observed under B-ultrasound of the abdomen or vagina, the inserting direction and the depth of the cervical catheter cannot be accurately mastered during operation, and the top end of the catheter is hard, so that perforation of the uterus is easy to cause. During examination, 1.5-2 ml of physiological saline is injected into the cervical catheter, the cervical catheter occupies partial space of the uterine cavity, the complete development of the uterine cavity is disturbed, the position of a pathological change is covered, the cervical catheter is difficult to insert or vagus nerve reflex is easily caused in the insertion process, and spasmodic pain of a patient is easily caused.

Disclosure of Invention

The utility model aims at the defects existing in the ultrasonic radiography for the examination of the uterus and the fallopian tube, and provides the radiography conduit which can meet the shape characteristics of different uteruses and the depth of the uterine cavity and can simultaneously develop the complete space in the uterine cavity and the left and right fallopian tubes under the ultrasonic monitoring.

The technical scheme of the utility model is that: the uterus oviduct ultrasonic radiography catheter is characterized by comprising a catheter head part, a catheter body part, a catheter tail part and a sleeve core, wherein a contrast agent outlet hole is formed in the top end of the catheter head part, a laser marking part is arranged on the tube wall of the catheter head part, a handheld part is arranged at the catheter tail part, a contrast agent injector interface is arranged at the tail end, and the sleeve core is sleeved on the catheter. The position of the arc of the catheter body is provided with a sliding soft piston which can avoid the contrast agent in the uterine cavity from overflowing.

The functions of each part and part of the ultrasonic contrast catheter are described as follows:

(1) a catheter head part: the cervical catheter is a conical device, the top end of the cervical catheter is arranged to be round and smooth, and the superfine hollow metal supporting sleeve core is added into the near end of the cervical catheter, so that the cervical catheter is suitable for different uterine shapes and cervical characteristics, and the difficulty of the catheter entering the cervical catheter and the discomfort of a patient are reduced.

And (4) contrast agent outlet: the center of the top end of the head is provided with a contrast agent outlet hole which is 1cm away from the center, two contrast agent outlet holes are arranged on two sides of the top end in a symmetrical isosceles triangle manner, the two holes correspond to the left uterine corner and the right uterine corner respectively, the design can ensure the uniform injection speed of the contrast agent, and the contrast agent can also uniformly enter the left and right oviducts to be developed and observed.

Laser marking position: the device is near the hole for contrast agent and has a length of 1cm, so that the echo effect of B ultrasonic display can be enhanced, and the optimal position of the catheter tip in the uterine cavity is provided.

(2) A conduit body part: the diameter of the catheter is 2mm, and the wall of the catheter is provided with a sliding soft piston and depth scales for being placed into a uterine cavity.

Depth calibration: the catheter body part is provided with 6 scales with 6cm as a unit, the depth of a uterine cavity is generally 6-8 cm, and the depth of the catheter entering the uterine cavity is easy to master.

Sliding the soft piston: the part has the main function that after the catheter enters the uterine cavity to a preset depth, the movable conical soft piston is pushed to seal the external cervical orifice and is fixed at the cervical orifice, so that the contrast agent is prevented from overflowing.

The arc position of the catheter body: the catheter is designed to be gradually shaped, thickened and hardened according to the anatomical features in the cervix so as to ensure the good sealing function of the soft piston on the external cervical orifice and the stability effect of the operation when the contrast medium is injected.

(3) The tail part of the catheter: the design has a plane hand-held part which is consistent with the holding stability, the horizontal direction of the straight medicine outlet hole at the top of the catheter is marked on the plane, the horizontal direction faces the opening direction of the left and right fallopian tubes, and the outer opening of the hand-held part is an injector interface.

(4) Sleeving a core: the metal sleeve core provided separately is in the radiography conduit, is convenient to be shaped before being inserted into the cervical canal, and is easy to enter the uterine cavity under different anatomical structures in the cervical canal.

The utility model discloses following beneficial effect has:

(1) the utility model discloses pipe head and pipe body portion all adopt soft polyvinyl chloride material, comfortable, safe, be a convex device, and pipe distal end portion is super soft, and the near-end adds superfine cavity metal support cover core at its inside, easily inserts, is fit for different uterus form characteristics and cervical shape, has reduced the degree of difficulty and the uncomfortable sense of inserting the in-process.

(2) The utility model discloses the level and smooth form of round blunt is set to the top, and sets up out the contrast agent hole, and three contrast agent hole is arranged to the isosceles triangle appearance, and two holes of top both sides correspond respectively about the oviduct opening at side palace angle, and the uniform exit tube of contrast agent not only can be guaranteed in this design, can not block, and easy control pushes the speed of contrast agent and the interior development aassessment of oviduct that evenly gets into both sides moreover.

(3) 6 guide marking scales with the interval of 1cm are arranged on the tube wall of the head of the catheter, so that the depth of the catheter inserted into the uterine cavity can be easily mastered.

(4) The laser marking part is arranged on the tube wall of the head part, so that the ultrasonic display function of the top end of the B-ultrasonic lower catheter in the uterine cavity can be enhanced.

(5) At the arc position 7cm away from the top end of the catheter body, a hard polyvinyl chloride material which becomes thick and hard gradually is designed according to the human anatomy characteristics so as to ensure the good sealing performance and the operation stability of the pushing soft piston and avoid the overflow of the contrast medium in the uterine cavity.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the structure of the catheter head of the present invention.

In the figure: 1-a catheter head; 2-a catheter body; 3-catheter tail; 4-out contrast agent hole; 5-laser marking the part; 6-scale position; 7-sliding soft piston; 8-a hand-held portion; 9-an injector interface; 10-arc of catheter body; 11-a sleeve core; 12-a top-out contrast agent well; the 13-side end has a contrast agent aperture.

Detailed Description

The embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1 and 2, the uterus oviduct ultrasonic radiography catheter is characterized by comprising a catheter head part 1, a catheter body part 2, a catheter tail part 3 and a sleeve core 11, wherein a contrast agent outlet hole 4 is formed in the top end of the catheter head part, a laser marking part 5 is arranged on the wall of the catheter head part, a handheld part 8 is arranged on the catheter tail part 3, a contrast agent injector interface 9 is arranged at the tail end, and the sleeve core 11 is sleeved on the catheter.

First-step assembly:

according to fig. 1, a sleeve core 11 is inserted into a catheter body 1, paraffin oil lubricates the catheter, and a deep sliding soft piston 7 is sleeved on the outer wall of the catheter body.

The second step uses:

after the conventional insertion of the vaginal dilator, the catheter is correctly inserted according to the tail identification of the ultrasonic contrast catheter, enters a uterine cavity through the vagina and the cervix, ultrasonically detects the laser marking part 5 and surrounding tissues, monitors the entering depth of the ultrasonic contrast catheter, and fixes the ultrasonic contrast catheter after reaching a preset part. The sleeve core 11 is drawn out, the injector interface 9 at the tail part of the catheter is connected with an injector for injecting contrast medium, the contrast medium is injected, and the display condition of the uterine cavity and the fallopian tube and the flowing speed of the contrast medium are monitored by ultrasound. After the examination is completed, the ultrasound contrast catheter is removed.

The above embodiments are merely illustrative of the principles and effects of the present invention, and any person skilled in the art can substitute the above embodiments equally, and the scope of the present invention is not limited by the claims.

Claims (5)

1. The uterus oviduct ultrasonic radiography catheter is characterized by comprising a catheter head (1), a catheter body (2), a catheter tail (3) and a sleeve core (11), wherein a contrast agent hole (4) is formed in the top end of the catheter head, a laser marking part (5) is arranged on the wall of the catheter head, a handheld part (8) is arranged on the catheter tail (3), a contrast agent injector interface (9) is arranged at the tail end, and the sleeve core (11) is sleeved on the catheter.

2. The sonography catheter of claim 1, wherein the tip of the head of the catheter is provided with 3 holes (4) for contrast medium, the holes are arranged in an isosceles triangle shape, one is located at the center of the tip of the head, two are located at two symmetrical sides of the tip, and the 3 holes for contrast medium are spaced by 1 cm.

3. A uterotubal sonography catheter as claimed in claim 1, wherein at the location of the catheter body arc (10) a sliding soft piston (7) is installed which avoids the escape of contrast agent in the uterine cavity.

4. The sonography catheter of claim 1, wherein a scale (6) of the catheter insertion depth is marked at the middle-posterior position of the catheter head (1).

5. A uterotubal sonography catheter as claimed in claim 4, wherein the marked graduations (6) are spaced 1cm apart, for a total of 6 guide marking graduations.

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