Uterine manipulator

Abstract

The uterine manipulator comprises a main tube body, a side tube body, a guide rod and a cup-shaped container, the cup-shaped container is arranged at the upper end of the main pipe body; the side pipe body is arranged at the lower part of the main pipe body; the guide rod is inserted from the lower end of the main pipe body, penetrates through the cup-shaped container and extends to the upper part of the main pipe body; the cup-shaped container is made of medical silicone rubber; a plurality of clamping plates are fixed on the peripheral surface of the cup-shaped container; the lower end of the clamping plate extends to the lower part of the cup-shaped container; the lower part of the clamping plate is formed into a bent shape which is sunken towards the main pipe body; the lower parts of the plurality of clamping plates together form an expansion opening with a narrow upper part and a wide lower part; a sleeve is mounted on the peripheral surface of the main pipe body; the sleeve and the main pipe body are combined together in a threaded mode. The upper end of the sleeve is in a frustum shape, the upper end of the frustum shape is used for being inserted into the expansion opening to prize the lower portion of the clamping and closing plate to rotate outwards, the upper end of the clamping and closing plate to rotate inwards, and therefore the opening in the upper end of the cup-shaped container is shrunk under the action of the clamping and closing plate.

Description

Technical Field

[0001] The present application relates to a medical device, and more particularly to a uterine manipulator. Background Art

[0002] Cervical cancer is one of the most common malignant tumors in gynecology, with a high mortality rate among women's diseases, which seriously threatens the health of women. Gynecologists still mainly use surgical treatment for early cervical cancer.

[0003] In all laparoscopic radical cervical cancer surgeries, the use of a uterine manipulator may be the factor that has the greatest impact on prognosis. The cup-shaped uterine manipulator is the most commonly used by doctors in clinical practice. During the operation, the doctor or assistant needs to operate the uterine manipulator to move the position of the cervix to meet the needs of the operation. During this process, the cervix contained in the cup-shaped container is very likely to slip out of the cup-shaped container or partially slip out, and come into contact with the surrounding tissues, causing cancer cells to stick from the cervix to other tissues, causing the metastasis of cancer cells. In addition, the guide rod can easily pierce the uterus during the operation. Utility Model Content

[0004] In view of the above problems, the present application aims to propose a uterine manipulator, which can, on the one hand, prevent the cervix from slipping out of the cup-shaped container as much as possible, and on the other hand, prevent the guide rod from piercing the wall of the uterine tube as much as possible.

[0005] The uterine manipulator of the present application comprises a main body, a side body, a guide rod, and a cup-shaped container; the cup-shaped container is arranged at the upper end of the main body; the side body is arranged at the lower part of the main body; the side body is arranged vertically with the main body and is connected with the main body; a bolt is installed in the side body; the guide rod is inserted from the lower end of the main body, passes through the cup-shaped container and extends to the upper part of the main body; the end of the bolt in the side body abuts against the outer peripheral surface of the guide rod to fix the position of the guide rod in the main body;

[0006] The cup-shaped container is made of medical silicone rubber; a plurality of clamping plates are fixed on the outer peripheral surface of the cup-shaped container; the upper end of the clamping plate extends to the upper end of the cup-shaped container, and the lower end of the clamping plate extends to the lower part of the cup-shaped container; the lower part of the clamping plate is formed into a curved shape concave toward the main pipe body; the lower parts of the plurality of clamping plates together form an expansion opening that is narrow at the top and wide at the bottom;

[0007] A sleeve is installed on the outer circumference of the main body; an internal thread is formed on the inner circumference of the lower part of the sleeve, and an external thread is formed on the corresponding part of the main body, so that the sleeve and the main body are combined together by threads; the upper end of the sleeve forms a frustum, and the upper end of the frustum is used to be inserted into the expansion opening to pry the lower part of the clamping plate outward and the upper end inward, so that the upper end opening of the cup-shaped container shrinks under the action of the clamping plate.

[0008] Preferably, a through hole is formed along the axial direction of the guide rod; a sub-rod is slidably installed in the through hole, the upper end of the sub-rod is located above the guide rod, and the lower end of the sub-rod is located below the guide rod; a baffle protruding outward is formed at the upper end of the sub-rod; a spring is arranged between the baffle and the upper end of the guide rod.

[0009] Preferably, a pressure scale is formed on the circumferential surface of the lower portion of the sub-rod.

[0010] Preferably, a rigid circular plate is formed on the lower bottom surface of the cup-shaped container, and the diameter of the circular plate is smaller than the inner diameter of the cup-shaped container.

[0011] The uterine lifting cup of the present application, after accommodating the cervix in the cup-shaped container, rotates the sleeve to rotate the upper end of the clamping plate inward, thereby causing the upper opening of the cup-shaped container to contract, thereby preventing the cervix from slipping out of the cup-shaped container as much as possible, and preventing the metastasis of cancer cells on the cervix. The uterine lifting cup of the present application, the sub-rod of the guide rod provides a buffer for the contact between the guide rod and the inner wall of the sub-tube, and the scale at the lower end of the sub-rod can also indicate the pressure between the guide rod and the uterine wall, providing instructions for the operator to avoid excessive compression of the guide rod causing loss or puncture of the uterine wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of the uterine manipulator of the present application;

[0013] Figure 2 for Figure 1 A schematic diagram of the main structure of the uterine manipulator;

[0014] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of a uterine manipulator;

[0015] Figure 4 for Figure 1 Schematic diagram of the uterine manipulator after removing the guide rod and cannula;

[0016] Figure 5 for Figure 1 Schematic diagram of the cannula of the uterine manipulator;

[0017] Figure 6 for Figure 1 Schematic diagram of the guide rod of the uterine manipulator. DETAILED DESCRIPTION

[0018] Below, the uterine manipulator of the present application is described in detail with reference to the accompanying drawings.

[0019] The uterine manipulator of the present application includes a main tube body 10 , a side tube body 11 , a guide rod 21 , and a cup-shaped container 14 .

[0020] The cup-shaped container 14 is arranged at the upper end of the main body 10; the side pipe body 11 is arranged at the lower part of the main body 10.

[0021] The side pipe body 11 is arranged perpendicular to the main body 10 and communicates with the main body 10; a bolt 12 is installed in the side pipe body 11.

[0022] The guiding rod 21 is inserted into the main body 10 from the lower end, passes through the cup-shaped container 14 and extends above the main body 10.

[0023] The end of the bolt 12 in the side pipe body 11 abuts against the outer peripheral surface of the guiding rod 21 to fix the position of the guiding rod 21 in the main body 10. All these are the same as the prior art.

[0024] The difference of the present application is that the cup-shaped container 14 is made of medical silicone rubber; a plurality of clamping plates 31 are fixed on the outer peripheral surface of the cup-shaped container 14; the upper ends of the clamping plates 31 extend to the upper end of the cup-shaped container 14, and the lower ends of the clamping plates 31 extend below the cup-shaped container 14; the lower part of the clamping plate 31 is formed into a curved shape concave towards the main body 10; the connecting contour lines of the lower parts of the plurality of clamping plates 31 together form an expanding opening with a narrow upper part and a wide lower part.

[0025] A sleeve 32 is installed on the outer peripheral surface of the main body 10; internal threads are formed on the inner peripheral surface of the lower part of the sleeve 32, and external threads are formed on the corresponding part of the main body 10, whereby the sleeve 32 and the main body 10 are combined together by a threaded manner; the upper end 32a of the sleeve 32 is formed into a frustum shape, and the frustum-shaped upper end 32a is used to be inserted into the above-mentioned expanding opening to pry the lower part of the clamping plate 31 to rotate outwards and the upper end to rotate inwards, whereby the upper opening of the cup-shaped container 14 contracts under the action of the clamping plate.

[0026] A through hole is formed along the axial direction of the guiding rod 21; a sub-rod 22 can be slidably installed in the through hole, the upper end of the sub-rod 22 is located above the guiding rod 21, and the lower end of the sub-rod 22 is located below the guiding rod 21; a baffle protruding outwards is formed at the upper end of the sub-rod 22; a spring 23 is arranged between the baffle and the upper end of the guiding rod 21.

[0027] Pressure scales are formed on the circumferential surface of the lower part of the sub-rod.

[0028] A rigid circular plate 13 is formed on the bottom surface of the cup-shaped container 14, and the diameter of the circular plate 12 is smaller than the inner diameter of the cup-shaped container 14.

[0029] When in use, first insert the guiding rod with the sub-rod installed into the uterus of the patient through the vagina; after the baffle at the upper end of the sub-rod abuts against the uterine wall, the spring at the upper end of the sub-rod is compressed, and the lower end of the sub-rod will protrude more from the lower end of the guiding rod. The scale exposed from the lower end of the sub-rod from the lower end of the guiding rod can be used to judge the pressure of the entire guiding rod on the uterus, thereby helping the operator control the pressure of the guiding rod on the uterus and avoiding piercing the uterus. Then, put the main body tube on the guiding rod from the lower end of the guiding rod, and pass through the vagina along the guiding rod, and finally make the cup-shaped container cover the cervix; rotate the sleeve so that the frustum at the upper end of the sleeve continuously enters the expansion opening or the trumpet-shaped opening formed by the contour line at the lower end of the plurality of clamping plates. The clamping plates are pried, the lower ends of the clamping plates rotate outwards, and the upper ends of the clamping plates rotate inwards. Thus, the upper opening of the cup-shaped container is contracted by means of the clamping plates, and the cervix accommodated in the cup-shaped container is not likely to slip out of the cup-shaped container, avoiding its contact with the surrounding tissues and avoiding the metastasis of cancer cells on the cervix caused thereby.

Claims

1. A uterine manipulator, which comprises a main tube body, a side tube body, a guiding rod, and a cup-shaped container; the cup-shaped container is arranged at the upper end of the main tube body; the side tube body is arranged at the lower part of the main tube body; the side tube body is vertically arranged with respect to the main tube body and is communicated with the main tube body; a bolt is installed in the side tube body; the guiding rod is inserted from the lower end of the main tube body, passes through the cup-shaped container and extends above the main tube body; the end of the bolt in the side tube body abuts against the outer peripheral surface of the guiding rod to fix the position of the guiding rod in the main tube body; and it is characterized in that: The cup-shaped container is made of medical silicone rubber; a plurality of clamping plates are fixed on the outer peripheral surface of the cup-shaped container; the upper ends of the clamping plates extend to the upper end of the cup-shaped container, and the lower ends of the clamping plates extend below the cup-shaped container; the lower part of the clamping plate is formed into a curved shape recessed towards the main tube body; the lower parts of the plurality of clamping plates together form a widened opening with a narrow upper part and a wide lower part. A sleeve is installed on the outer peripheral surface of the main tube body; an internal thread is formed on the inner peripheral surface of the lower part of the sleeve, and an external thread is formed on the corresponding part of the main tube body, so that the sleeve and the main tube body are combined together by a threaded manner; the upper end of the sleeve is formed into a frustum shape, and the upper end of the frustum shape is used to be inserted into the widened opening to pry the lower part of the clamping plate to rotate outwards and the upper part to rotate inwards, so that the upper opening of the cup-shaped container contracts under the action of the clamping plate.

2. The uterine manipulator according to claim 1, wherein: A through hole is formed along the axial direction of the guiding rod; a sub-rod can be slidably installed in the through hole, the upper end of the sub-rod is located above the guiding rod, and the lower end of the sub-rod is located below the guiding rod; a baffle protruding outwards is formed at the upper end of the sub-rod; a spring is arranged between the baffle and the upper end of the guiding rod.

3. The uterine manipulator according to claim 2, wherein: Pressure scales are formed on the peripheral surface of the lower part of the sub-rod.

4. The uterine manipulator according to claim 1, wherein: A rigid circular plate is formed on the lower bottom surface of the cup-shaped container, and the diameter of the circular plate is smaller than the inner diameter of the cup-shaped container.

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