WO2017004833A1

WO2017004833A1 - Vaginal expansion rod

Info

Publication number: WO2017004833A1
Application number: PCT/CN2015/083688
Authority: WO
Inventors: 罗光楠; 潘宏信
Original assignee: 深圳市罗湖区人民医院
Priority date: 2015-07-09
Filing date: 2015-07-09
Publication date: 2017-01-12
Also published as: CN107106824B; CN107106824A

Abstract

A vaginal expansion rod (10), comprising an inner rod (110) and a cylindrical water bag sleeve (120) sleeved on the inner rod (110), the water bag sleeve (120) being for causing the vaginal expansion rod (10) to expand under the action of filling with water so as to have a different outer diameter. In the process of an operation using the vaginal expansion rod (10), the water bag sleeve (120) at first has no or little water filled therein, and the vaginal expansion rod expands a vaginal tunnel incision and has a small dimension, and subsequently the vaginal expansion rod (10) is gradually filled with water, without pulling out the vaginal expansion rod (10), such that the vaginal expansion rod (10) gradually expands to a required size under the action of filling with water, thus avoiding a drop in abdominal pressure and the formation of false tunnels caused by pulling out the vaginal expansion rod (10).

Description

Vaginal expansion rod

Technical field

The present invention relates to vaginal prosthetics, and more particularly to a vaginal dilatation rod.

Background technique

Congenital vaginal disorders can be constructed by laparoscopic vaginoplasty. Laparoscopic vaginoplasty requires freeing the peritoneum, then a vaginal tunnel, and then pulling the peritoneum into the vaginal tunnel and suturing the vestibule to cover the vaginal tunnel to form an artificial vagina.

At present, the vaginal tunnel is formed mainly by the operator operating the dilatation blunt dilatation incision. Therefore, it is necessary to first make a small tunnel and then slowly expand to the desired size. Therefore, the current operation requires a variety of expansion rods, first with a small expansion rod for expansion, and then pulled out, replace the larger expansion rod, and so on, until the vaginal tunnel is formed.

Then, the expansion rod is repeatedly pulled out, which easily leads to outflow of gas in the abdominal cavity, which causes the abdominal pressure to decrease and affects the operation field of the laparoscope. In addition, pulling out the expansion rod can also cause the vaginal tunnel to collapse and easily cause false roads.

Summary of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention is required to provide a vaginal dilatation rod.

A vaginal dilating rod according to a preferred embodiment of the present invention includes an inner rod and a cylindrical water jacket sleeved on the inner rod, the water bladder sleeve being adapted to expand under water injection to have different outer diameters of the vaginal dilatation rod.

In certain embodiments, the inner rod is made of a rigid material.

In certain embodiments, the inner rod has an outer diameter of less than or equal to 15 mm.

In certain embodiments, the inner rod has a tapered head that emerges from the water bladder.

In certain embodiments, the inner rod has a length greater than 18 cm.

In some embodiments, the inner rod has a hollow structure, the head of the vaginal dilation rod is formed with an opening, and the vaginal dilating rod further includes a sealing cap that closes the opening, the sealing cap is formed with a cone a through hole having a top portion of the tapered through hole facing the inner rod.

In certain embodiments, the inner rod has an inner diameter of 11 mm.

In some embodiments, the sealing cap includes an inner and outer portion that engages the head and an outer bowl that exposes the opening, the inner bowl portion mating with the inner wall of the head.

In some embodiments, the water jacket determines the thickness of each portion according to the water injection position and the distribution characteristics of the water pressure to uniformly expand the water bladder under water pressure.

In certain embodiments, the vaginal dilatation rod further includes a water injector for injecting water into the water bladder as needed.

In certain embodiments, the vaginal dilatation rod further comprises a body lubricant coated on the water bladder.

In the vaginal dilatation rod of the embodiment of the present invention, during the operation, the water capsule is not filled with water or the water is injected less, so that the vaginal dilatation rod has a smaller size and the incision of the vaginal tunnel is expanded, and then the needle is not pulled out. In the case of a vaginal dilatation stick, the water injection is gradually added, so that the vaginal dilatation rod gradually expands to the required size under the action of water injection, thereby avoiding the drop of abdominal pressure caused by the vaginal expansion rod and the formation of false roads.

The additional aspects and advantages of the invention will be set forth in part in the description which follows.

DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

1 is a schematic perspective view of a vaginal dilation rod according to an embodiment of the present invention.

2 is a schematic view of a vaginal dilatation rod according to an embodiment of the present invention.

detailed description

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientations of "post", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the present invention and the simplified description, and is not intended to indicate or imply that the device or component referred to has a specific orientation, and is constructed and operated in a specific orientation. Therefore, it should not be construed as limiting the invention. Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Or implicitly indicate the number of technical features indicated. Thus, features defining "first" or "second" may include one or more of the described features either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; may be mechanically connected, may be electrically connected or may communicate with each other; may be directly connected, or may be indirectly connected through an intermediate medium, may be internal communication of two elements or interaction of two elements relationship. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the present invention, the first feature "on" or "under" the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly above and above the second feature, or merely the first feature level being less than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described below. Of course, they are merely examples and are not intended to limit the invention. In addition, the present invention may be repeated with reference to the numerals and/or reference numerals in the various examples, which are for the purpose of simplicity and clarity, and do not indicate the relationship between the various embodiments and/or arrangements discussed. Moreover, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the use of other processes and/or the use of other materials.

Referring to FIG. 1 , a vaginal dilating rod 10 according to an embodiment of the present invention includes an inner rod 110 and a cylindrical water jacket 120 that is sleeved on the inner rod 110. The water capsule 120 is used to expand under the action of water to make the vaginal dilating rod 10 Have different outer diameters.

In the vaginal dilating rod 10 of the embodiment of the present invention, during the operation, the water bladder 120 is not filled with water or the water is injected less, so that the vaginal dilating rod 10 has a small size and is incision to the vaginal tunnel (not shown). The expansion is performed, and then the water is gradually added without pulling out the vaginal dilating rod 10, so that the vaginal dilating rod 10 is gradually expanded to the required size under the action of water injection, thereby avoiding the decrease of the abdominal pressure caused by the removal of the vaginal dilatation rod 10 and The formation of false roads.

In the present embodiment, the inner rod 110 is made of a rigid material such as plastic or stainless steel.

As such, the inner rod 110 has a higher stiffness and can provide rigidity to the vaginal dilation rod 10 to achieve blunt separation.

The inner rod 100 has an outer diameter of 15 mm or less.

In this way, the vaginal dilating rod 10 can provide a small outer diameter at the beginning of expansion, for example, 15 mm, and according to the physiological structure and clinical experience of the human body, the edging is first expanded with a smaller outer diameter, and then the outer diameter is gradually increased. The incision of the vaginal tunnel can be protected from tearing while expanding smoothly.

In the present embodiment, the outer diameter of the inner diameter 100 is 15 mm, which is determined according to the physiological structure and clinical experience of the human body. Of course, in other embodiments, other sizes may be adopted according to requirements, and are not limited to the embodiment. .

The inner rod 110 has a tapered head portion 111 that emerges from the water bladder 120.

Thus, regardless of whether the balloon sleeve 120 is expanded, the vaginal dilation rod 10 can provide a tapered head structure that facilitates blunt separation. It can be understood that, in actual operation, even if the expansion is performed in a small size, the tapered head structure of the vaginal dilation rod 10 is required, which is more advantageous for the gradual expansion.

The inner rod 110 has a length greater than 18 cm.

As such, the vaginal dilation rod 10 can have a suitable expanded length, for example 20 cm, depending on the physiological structure and clinical experience of the human body, although other lengths can be used as desired in other embodiments.

It will be appreciated that in order to expose the head 111, or further, the tail of the inner rod 110 is to be leaked as needed, the length of the water bladder 120 is generally less than the length of the inner rod 110.

The inner rod 110 has a hollow structure, and the head portion 111 is formed with an opening 112. The vaginal dilating rod 10 further includes a sealing cap 130 having a closed opening, and the sealing cap 130 is formed with a tapered through hole 113, and the top of the tapered through hole 113 faces inward Inside the rod 110.

Thus, when the vaginal dilatation rod 10 is inserted into the abdominal cavity, the sealing cap 130 is inverted by the pressure of the abdominal cavity, so that the inner walls of the tapered passage 113 are fitted together and thus sealed, thereby sealing the opening 112. Thereby, the outflow of the airflow in the abdominal cavity is prevented, the abdominal pressure is lowered, and the operational field of view of the laparoscope is affected. On the other hand, after the vaginal tunnel is opened, a laparoscopic suturing instrument (not shown) can enter the inside of the inner rod 110 and then eject the sealing cap 130, so that the sealing cap 130 is everted, exposing the tapered through hole 113, Therefore, the laparoscopic suturing instrument can enter the abdominal cavity through the tapered through hole 113 to pull out the peritoneum, thereby suturing the vestibule of the vaginal tunnel, and covering the vaginal tunnel with the peritoneum.

The inner rod 110 has an inner diameter of 11 mm.

As such, the vaginal dilation rod 10 can provide a more suitable passage for laparoscopic suturing instruments. However, this is also based on clinical experience, although other internal diameters may be employed as desired in other embodiments.

The sealing cap 130 includes an inner bowl portion 131 that engages with the head portion 111 and an outer bowl portion 131 that exposes the outside of the opening 112. The inner bowl portion 131 closely matches the inner wall of the head portion 111.

That is, the inner bowl portion 131 is also tapered so as to closely fit the inner wall of the head portion 111, thereby increasing the degree of sealing of the sealing cap 130. The outer bowl portion 132 can cooperate with the head portion 111 to form a continuous tapered outer contour to facilitate the gradual expansion of the vaginal tunnel.

The water jacket 120 determines the thickness of each portion according to the water injection position and the distribution characteristics of the water pressure so that the water bladder 120 is balancedly expanded under the action of water pressure.

In this manner, the vaginal dilation rod 10 can still provide the desired approximately columnar structure after the balloon sleeve 120 is expanded, thereby meeting the surgical needs.

In addition, in order to meet the sanitary requirements of medical equipment, the inner rod 110, the water jacket 120 and the sealing cap 130 are required to be autoclaved by internal high temperature. Moreover, if it is manufactured by a molding process, it generally needs to be molded once and is not easily damaged.

In other embodiments, the vaginal dilatation rod 10 further includes a water injector 140 for injecting water into the water bladder 120 as needed.

As such, the size of the vaginal dilation rod 10 can be expanded as desired.

The vaginal dilatation rod 10 also includes a human body lubricant (not shown) coated on the outer surface of the vaginal dilation rod 10.

In this way, the vaginal dilatation rod 10 can be smoothly expanded to prevent the muscle from pulling excessively.

In the description of the specification, the descriptions of the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific examples" or "some examples" and the like are meant to be combined with the embodiments or The specific features, structures, materials, or characteristics described in the examples are included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

While the embodiments of the present invention have been shown and described, the embodiments of the invention may The scope of the invention is defined by the claims and their equivalents.

Claims

A vaginal dilating rod characterized by comprising:

An inner rod; and a tubular water jacket disposed on the inner rod, the water jacket for expanding under the action of water injection to have different outer diameters of the vaginal expansion rod.
A vaginal dilation rod according to claim 1 wherein said inner rod is made of a rigid material.
The vaginal dilating rod according to claim 1, wherein said inner rod has an outer diameter of 15 mm or less.
The vaginal dilation rod of claim 1 wherein said inner rod has a tapered head that emerges from said water bladder.
The vaginal dilation rod of claim 1 wherein said inner rod has a length greater than 18 cm.
The vaginal dilating rod according to claim 1, wherein said inner rod has a hollow structure, said head of said vaginal dilatation rod is formed with an opening, and said vaginal dilating rod further comprises a sealing cap for closing said opening The sealing cap is formed with a tapered through hole, and a top of the tapered through hole faces the inner rod.
The vaginal dilation rod of claim 6 wherein said inner rod has an inner diameter of 11 mm.
A vaginal dilating rod according to claim 6, wherein said sealing cap includes an inner and outer portion that engages with said head portion and an outer bowl portion that exposes said opening, said inner bowl portion and said head portion The inner wall of the department closely cooperates.
The vaginal dilating rod according to claim 1, wherein said water bladder sleeve determines the thickness of each portion according to a water injection position and a distribution characteristic of water pressure so that said water bladder sleeve is balancedly expanded under water pressure.
The vaginal dilation rod of claim 1 wherein said vaginal dilation rod is further A water injector is included for injecting water into the water bladder as needed.
The vaginal dilatation rod of claim 1 wherein said vaginal dilatation rod further comprises a body lubricant coated on said water bladder.