CN214857301U

CN214857301U - Uterine manipulator

Info

Publication number: CN214857301U
Application number: CN202120501571.9U
Authority: CN
Inventors: 綦小蓉; 凌晨; 周小驰; 谢敏; 陈燕
Original assignee: West China Second University Hospital of Sichuan University
Current assignee: West China Second University Hospital of Sichuan University
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-11-26
Anticipated expiration: 2031-03-09

Abstract

The utility model relates to the technical field of medical appliances, in particular to a uterus lifter, which comprises a uterus lifting cylinder and an adjusting device; the uterine manipulator comprises a cylinder body formed by rolling an elastic sheet, and overlapping parts are formed at the staggered positions of two ends of the elastic sheet; the adjusting device comprises an adjusting seat, an adjusting rod, a fixing block and a plurality of supporting rods; the fixed block is fixedly connected to the womb lifting cylinder; the adjusting seat is positioned inside the uterine manipulator; the adjusting rod is rotated, so that the adjusting seat can be adjusted to move towards the direction far away from the fixed block or close to the fixed block; the first end of each supporting rod is hinged to the adjusting seat, and the second end of each supporting rod is hinged to the inner wall of the womb lifting cylinder. In the use process, the vertical stress of the surrounding tissues is avoided, and the transverse stress of the surrounding tissues is reduced, so that the risk of damage to the surrounding tissues is reduced.

Description

Uterine manipulator

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a uterine manipulator.

Background

The uterine manipulator is a surgical instrument commonly used in gynecological laparoscopic surgery, plays a role in moving a uterus in the surgery, helps an operator to define tissues such as the uterus, the vagina and the like before resection, and is used as a pad and the like in the resection process.

In laparoscopic hysterectomy, a uterus lifter is usually used to make the incision part of the guide dome protrude towards the abdomen, so as to facilitate the operation, reduce the operation difficulty and improve the operation safety. Most of the existing uterine elevators are cup-shaped devices, and the diameter of the uterine elevators cannot be adjusted. For older patients, as the body function of the patients is reduced and the vagina is contracted, the situation of vaginal laceration and the like is easy to occur in the process of putting the uterine manipulator, the operation process is influenced, and the patients are injured.

In the use process of the existing uterine elevator, the vertical stress (including friction force and the like) or the horizontal stress (stress caused by expansion) of the surrounding tissues is large, and the surrounding tissues are easily damaged.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: to the current uterus lifting device that prior art exists and to intoxicate the surrounding tissue easily and cause the damage problem, provide a uterus lifting device, this uterus lifting device uses adjusting device through using the cooperation of a uterus lifting section of thick bamboo of adjustable diameter, realizes that the uterus lifting device diameter is variable, has reduced and has caused the damage to surrounding tissue in the use.

In order to realize the purpose, the utility model discloses a technical scheme be:

a uterine manipulator comprises a uterine manipulator cylinder with a variable diameter and an adjusting device capable of adjusting the diameter of the uterine manipulator cylinder;

the uterine manipulator comprises a cylinder body formed by rolling an elastic sheet, and overlapping parts are formed at the staggered positions of two ends of the elastic sheet;

the adjusting device comprises an adjusting seat, an adjusting rod, a fixing block and a plurality of supporting rods;

the fixed block is fixedly connected to the womb lifting cylinder;

the adjusting seat is positioned inside the uterine manipulator;

one end of the adjusting rod is connected with the adjusting seat, the middle of the adjusting rod is connected with the fixed block, and the other end of the adjusting rod is positioned outside the uterine manipulator; the adjusting rod is rotated, so that the adjusting seat can be adjusted to move towards the direction far away from the fixed block or close to the fixed block;

the first end of each supporting rod is hinged to the adjusting seat, and the second end of each supporting rod is hinged to the inner wall of the womb lifting cylinder.

The uterine manipulator is a cylinder formed by an elastic stainless steel sheet or an elastic plastic sheet and is provided with an overlapping part. Under the condition of not receiving external force, the staggered parts of the two ends form overlapping parts, the diameter can be enlarged under the support of the support rod, and the diameter can be reduced under the traction of the support rod.

The uterine manipulator can be placed from the vagina under the condition of a small diameter, and after the uterine manipulator reaches a use position, the diameter of the uterine manipulator cylinder is increased by rotating the adjusting device; on the one hand, avoided putting into the support of in-process to the vagina, and at diameter grow in-process, only carry out horizontal expansion to tissues around, avoid the tissue to receive vertical atress, on the other hand, adjusting device adjusts with rotatory mode, also can reduce the tissue and receive vertical atress, has reduced the damage risk to tissues around. The vertical stress refers to the force applied to the vagina along the axial direction of the uterus lifting cylinder in the process of placing the uterus lifting cylinder into the vagina. The lateral force refers to the outward supporting force perpendicular to the axial direction of the uterine tube, which is caused by the uterine tube to the vaginal tissue.

As the preferred scheme of the utility model, the fixed block is fixed in lift palace section of thick bamboo tip, and with on the relative position of overlap portion.

The relative position of overlapping portion is less lifting a palace section of thick bamboo diameter change in-process deformation degree, sets up the fixed block here, can make the fixed block atress less, does benefit to whole stable in structure.

As the preferred scheme of the utility model, the length of a plurality of supporting rods is different; and the length of the supporting rod is gradually reduced along the circumferential direction of the uterine manipulator and in the direction away from the overlapping part.

Be about for a plurality ofly the first end of bracing piece is articulated with adjusting the seat, and is preferred, the first end evenly distributed of a plurality of bracing pieces is in the periphery of adjusting the seat. After the supporting rods are unfolded, the eccentric arrangement is formed. During the adjustment, the degree of deformation of the overlapping portion is greater, so that the overlapping portion can be sufficiently spread or overlapped.

As the utility model discloses a preferred scheme, every the second end of bracing piece is located adjust the seat and keep away from one side of fixed block.

As the preferred scheme of the utility model, every the second end of bracing piece is located adjust between seat and the fixed block.

As the preferable proposal of the utility model, the second end of each support rod is hinged on the position on the inner wall of the uterine tube and is positioned on the same cross section.

As a preferred scheme of the utility model, one end of the adjusting rod is provided with a limiting lug, the adjusting seat is provided with a limiting groove, and the limiting lug is matched with the limiting groove; the limiting convex block and the limiting groove can slide relatively; the adjusting rod middle section is equipped with the screw thread section, the fixed block is equipped with the screw hole, the screw thread section with the screw hole adaptation.

As a preferred scheme of the utility model, one end of the adjusting rod is provided with a threaded section, the adjusting seat is provided with a threaded hole, and the threaded section is matched with the threaded hole; the middle part of the adjusting rod is provided with a limiting lug, the fixing block is provided with a limiting groove, and the limiting lug is matched with the limiting groove; the limiting convex block and the limiting groove can slide relatively.

As a preferred scheme of the utility model, one end of the adjusting rod is provided with a threaded section, the adjusting seat is provided with a threaded hole, and the threaded section is matched with the threaded hole; the middle part of adjusting the pole is equipped with spacing recess, the fixed block is equipped with spacing lug, spacing lug with spacing recess adaptation.

As the utility model discloses a preferred scheme, it keeps away from to adjust the pole the one end of adjusting the seat is equipped with the regulation handle.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the uterine manipulator of the utility model realizes the diameter change of the uterine tube by rotating the adjusting rod, can be put into the vagina under the condition of smaller diameter, and avoids the transverse and vertical stress on the surrounding tissues in the putting process; after the womb lifting cylinder reaches the use position, the distance between the fixing block and the adjusting seat is adjusted in a rotating mode, so that the womb lifting cylinder is pulled or supported by the supporting rod, and in the adjusting process, the womb lifting cylinder is free of vertical stress, and the vertical stress on surrounding tissues is avoided; only the womb lifting cylinder exerts transverse stress on surrounding tissues. In the whole using process, the stress of surrounding tissues is greatly reduced, and further, the damage risk of the uterine elevator to the surrounding tissues is reduced.

2. The utility model discloses a lift palace ware, through setting up the fixed block in the relative inboard of overlap portion, and keep away from the length of bracing piece along the axial setting that shortens gradually during the overlap portion for lifting a palace section of thick bamboo diameter increase or diminishing in-process, the deformation degree of overlap portion is bigger, does benefit to the abundant expansion of overlap portion or overlaps.

Drawings

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

Fig. 2 is another schematic structural section view of the uterine manipulator of the present invention.

Fig. 3 is a schematic structural view of a uterus lifting cylinder of the uterus lifting device of the utility model.

Fig. 4 is a schematic view of the cross-sectional structure of the adjusting device of the uterine manipulator of the present invention.

Fig. 5 is another sectional view of the adjusting device of the uterine manipulator of the present invention.

Fig. 6 is a schematic view of the adjusting device of the uterine manipulator and the matching relationship of the uterine manipulator cylinder of the present invention.

Icon: 1-lifting a uterine tube; 11-an overlap; 21-an adjusting seat; 22-a support bar; 23-adjusting the rod; 231-a limit bump; 232-a threaded section; and 24, fixing blocks.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Example 1

A uterine manipulator is shown in figures 1, 2 and 3 and comprises a uterine manipulator cylinder 1 with variable diameter and an adjusting device capable of adjusting the diameter of the uterine manipulator cylinder 1; the womb lifting cylinder 1 comprises a cylinder body formed by rolling elastic sheets, and overlapping parts 11 are formed at the staggered positions of two ends of each elastic sheet; the adjusting device comprises an adjusting seat 21, an adjusting rod 23, a fixing block 24 and a plurality of supporting rods 22; the fixing block is fixedly connected to the womb lifting cylinder 1; the adjusting seat 21 is positioned inside the womb lifting cylinder 1;

one end of the adjusting rod 23 is connected with the adjusting seat 21, the middle part of the adjusting rod 23 is connected with the fixing block, and the other end of the adjusting rod 23 is positioned outside the womb lifting cylinder 1; the adjusting rod 23 is rotated to adjust the adjusting seat 21 to move in a direction away from the fixed block or close to the fixed block 24; a first end of each support rod 22 is hinged on the adjusting seat 21, and a second end of each support rod 22 is hinged on the inner wall of the womb lifting cylinder 1.

Namely, the adjusting rod 23 is rotated to adjust the distance between the adjusting seat 21 and the fixed block 24.

In a first arrangement, as shown in fig. 1, the second end of each support rod 22 is located on a side of the adjusting seat 21 away from the fixing block 24. In this scheme, when adjusting the distance between seat 21 and the fixed block 24 and increase, fixed block 24 rigidity, adjust seat 21 and remove left, the first end of bracing piece 22 removes left under the promotion of adjusting seat 21, and the outside expansion of the second end of bracing piece 22 promotes and lifts a palace section of thick bamboo 1 and outwards expands, realizes that the diameter enlarges gradually. On the contrary, when the distance between the adjusting seat 21 and the fixing block 24 is shortened, the diameter of the womb lifting cylinder 1 is gradually reduced.

In the second arrangement, as shown in fig. 2, the second end of each support rod 22 is located between the adjusting seat 21 and the fixed block 24. In this scheme, when adjusting the distance between seat 21 and the fixed block 24 and increase, fixed block 24 rigidity adjusts seat 21 and moves left, and the first end of bracing piece 22 moves left under the drive of adjusting seat 21, and the second end of bracing piece 22 draws close to adjusting pole 23, and the uterus section of thick bamboo 1 is lifted in the pulling to the internal contraction, realizes that the diameter diminishes gradually. Similarly, when the distance between the adjusting seat 21 and the fixing block 24 is shortened, the diameter of the womb lifting cylinder 1 is gradually increased.

As shown in fig. 3, the fixing block is fixed at the end of the womb lifting cylinder 1 and at a position opposite to the overlapping part 11. The relative position of overlapping portion 11 is less lifting a 1 diameter change in-process degree of deformation of palace section of thick bamboo, sets up the fixed block here, can make the fixed block atress less, does benefit to whole stable in structure.

One of the following manners may be adopted for the connection relationship between the adjustment lever 23, the adjustment holder 21 and the fixed block 24.

In the first mode, as shown in fig. 4, one end of the adjusting rod 23 is provided with a limiting protrusion 231, the adjusting seat 21 is provided with a limiting groove, and the limiting protrusion 231 is matched with the limiting groove; the middle section of the adjusting rod 23 is provided with a threaded section 232, the fixing block 24 is provided with a threaded hole, and the threaded section 232 is matched with the threaded hole. Preferably, the limiting protrusion 231 is a spherical protrusion, and the limiting groove is a spherical groove with a mounting hole. Fig. 4 is a schematic cross-sectional view of an adjustment mechanism. The limiting groove of the adjusting seat can also be a spherical limiting groove. The adjusting rod is in a cylindrical rod shape, and the limiting convex block is a spherical convex block at the end part of the rod shape. The diameter of the limiting lug is slightly smaller than that of the limiting groove, and the diameter of the limiting lug is larger than the opening of the limiting groove. When the adjusting rod 23 rotates, the limiting groove and the limiting convex block can slide relatively. For example, when the adjusting rod rotates, the thread section moves leftwards, and the adjusting rod pushes the adjusting seat to move leftwards. Or when the adjusting rod rotates, the thread section moves rightwards, and the adjusting rod pulls the adjusting seat to move rightwards.

In a second mode, as shown in fig. 5, a threaded section 232 is provided at one end of the adjusting rod 23, a threaded hole is provided in the adjusting seat 21, and the threaded section 232 is adapted to the threaded hole; the middle part of the adjusting rod 23 is provided with a limiting convex block 231, the fixing block 24 is provided with a limiting groove, and the limiting convex block 231 is matched with the limiting groove. When the adjusting rod 23 rotates, the limiting convex block and the limiting groove can slide relatively. For example, when the adjusting rod rotates, the fixed block can limit the adjusting rod to move left and right, and the adjusting rod can only rotate relative to the fixed block. The fixed seat moves leftwards or rightwards along the threaded section.

In the second mode, the positions of the limiting projection 231 and the limiting groove can be interchanged, and the same function can be achieved. One end of the adjusting rod 23 is provided with a threaded section 232, the adjusting seat 21 is provided with a threaded hole, and the threaded section 232 is matched with the threaded hole; the middle part of the adjusting rod 23 is provided with a limiting groove, the fixing block 24 is provided with a limiting lug 231, and the limiting lug 231 is matched with the limiting groove.

As shown in fig. 6, the support rods 22 have different lengths; along lift palace section of thick bamboo 1 circumference, keep away from in proper order the direction of overlap portion 11, the length of bracing piece 22 reduces gradually.

That is, the first ends of the support rods 22 are hinged to the adjusting base 21, and preferably, the first ends of the support rods 22 are uniformly distributed on the periphery of the adjusting base 21. The plurality of support rods 22 are deployed to form an eccentric arrangement. During the adjustment, the degree of deformation of the overlapping portion 11 is greater, so that the overlapping portion 11 can be sufficiently spread or overlapped.

When the second ends of the support rods 22 are arranged, the second end of each support rod 22 is hinged on the inner wall of the womb lifting cylinder 1 at a position which is basically on the same section. The specific setting mode can lift on the ring shape of palace section of thick bamboo 1 inboard nearly same cross-section, set up a plurality of connecting blocks that are used for with bracing piece 22 articulated, realize bracing piece 22 with lift articulated of a palace section of thick bamboo 1.

In addition, a handle can be arranged for convenient operation, namely, an adjusting handle is arranged at one end of the adjusting rod 23 far away from the adjusting seat 21.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The uterine manipulator is characterized by comprising a uterine manipulator cylinder (1) with variable diameter and an adjusting device capable of adjusting the diameter of the uterine manipulator cylinder (1);

the uterine manipulator (1) comprises a barrel body formed by rolling elastic sheets, and overlapping parts (11) are formed at the staggered positions of the two ends of each elastic sheet;

the adjusting device comprises an adjusting seat (21), an adjusting rod (23), a fixed block (24) and a plurality of supporting rods (22);

the fixing block (24) is fixedly connected to the uterine manipulator (1);

the adjusting seat (21) is positioned inside the uterine manipulator (1);

one end of the adjusting rod (23) is connected with the adjusting seat (21), the middle part of the adjusting rod (23) is connected with the fixing block (24), and the other end of the adjusting rod (23) is positioned outside the uterine manipulator (1); the adjusting rod (23) is rotated, so that the adjusting seat (21) can be adjusted to move towards a direction far away from the fixed block (24) or close to the fixed block (24);

the first end of each support rod (22) is hinged to the adjusting seat (21), and the second end of each support rod (22) is hinged to the inner wall of the uterine manipulator (1).

2. A uterine manipulator according to claim 1, characterized in that the fixing block (24) is fixed to the end of the uterine manipulator (1) in a position opposite to the overlapping part (11).

3. A uterine manipulator according to claim 2, characterized in that several of said support rods (22) have different lengths; the length of the support rod (22) gradually decreases along the circumferential direction of the uterine manipulator (1) and in the direction away from the overlapping part (11).

4. The uterine manipulator according to claim 1, characterized in that the second end of each support rod (22) is located on the side of the adjusting seat (21) remote from the fixed block (24).

5. A uterine manipulator according to claim 1, characterized in that the second end of each support rod (22) is located between the adjusting seat (21) and the fixed block (24).

6. A uterine manipulator according to claim 1, characterized in that the second end of each support rod (22) is hinged to the inner wall of the uterine manipulator (1) at the same cross-section.

7. The uterine elevator according to any of claims 1-6, characterized in that one end of the adjusting rod (23) is provided with a limiting projection (231), the adjusting seat (21) is provided with a limiting groove, and the limiting projection (231) is matched with the limiting groove; the limiting convex block and the limiting groove can slide relatively; the middle section of the adjusting rod (23) is provided with a threaded section (232), the fixing block (24) is provided with a threaded hole, and the threaded section (232) is matched with the threaded hole.

8. The uterine elevator according to any one of claims 1 to 6, wherein one end of the adjusting rod (23) is provided with a threaded section (232), the adjusting seat (21) is provided with a threaded hole, and the threaded section (232) is adapted to the threaded hole; a limiting convex block (231) is arranged in the middle of the adjusting rod (23), a limiting groove is formed in the fixing block (24), and the limiting convex block (231) is matched with the limiting groove; the limiting convex block and the limiting groove can slide relatively.

9. The uterine elevator according to any one of claims 1 to 6, wherein one end of the adjusting rod (23) is provided with a threaded section (232), the adjusting seat (21) is provided with a threaded hole, and the threaded section (232) is adapted to the threaded hole; the middle part of adjusting pole (23) is equipped with spacing recess, fixed block (24) are equipped with spacing lug (231), spacing lug (231) with spacing recess adaptation.

10. A uterine manipulator according to any one of claims 1 to 6, characterized in that the end of the adjusting lever (23) remote from the adjusting seat (21) is provided with an adjusting handle.