CN107106824B

CN107106824B - Vagina expanding rod

Info

Publication number: CN107106824B
Application number: CN201580001680.1A
Authority: CN
Inventors: 潘宏信; 罗光楠
Original assignee: Shenzhen Luohu Peoplel's Hospital
Current assignee: Shenzhen Luohu Peoplel's Hospital
Priority date: 2015-07-09
Filing date: 2015-07-09
Publication date: 2020-06-12
Anticipated expiration: 2035-07-09
Also published as: CN107106824A; WO2017004833A1

Abstract

A vagina expansion rod (10) comprises an inner rod (110) and a cylindrical water bag sleeve (120) sleeved on the inner rod (110), wherein the water bag sleeve (120) is used for expanding under the action of water injection to enable the vagina expansion rod (10) to have different outer diameters. In the implementation process of the vagina expanding stick (10), water is not filled or is filled less in the water bag sleeve (120), so that the incision of the vagina tunnel is expanded under the condition that the vagina expanding stick (10) has a smaller size, and then water is gradually filled under the condition that the vagina expanding stick (10) is not pulled out, so that the vagina expanding stick (10) is gradually expanded to the required size under the action of water filling, and therefore abdominal pressure reduction and false passage formation caused by pulling out the vagina expanding stick (10) are avoided.

Description

Vagina expanding rod

Technical Field

The invention relates to a vagina forming technology, in particular to a vagina expanding rod.

Background

Congenital vaginal-free disease the vagina can be constructed by laparoscopic colpoplasty procedures. The peritoneoscope vagina forming operation needs to make the peritoneum free, then make a vagina tunnel, and then pull the peritoneum into the vagina tunnel to be sewed with the vestibule to cover the vagina tunnel to form the artificial vagina.

At present, the vaginal tunnel is formed mainly by blunt dilation of an incision by an operator operating a dilation rod, so that a small tunnel needs to be drilled first and then slowly dilated to reach the required size. Therefore, the operation at present needs to adopt a plurality of types of expansion rods, firstly, the expansion rod with a small size is used for expansion, then, the expansion rod is pulled out, the expansion rod with a larger size is replaced, and the operation is repeated until the vaginal tunnel is formed.

Then the dilating rod is repeatedly pulled out, which easily causes the outflow of gas in the abdominal cavity, causes the reduction of the abdominal pressure and influences the operating visual field of the laparoscope. In addition, withdrawal of the dilating rod may also cause collapse of the vaginal tunnel, easily creating a false tract.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, the present invention is directed to a vaginal dilation bar.

The vagina dilation rod comprises an inner rod and a cylindrical water bag sleeve sleeved on the inner rod, wherein the water bag sleeve is used for dilating under the action of water injection to enable the vagina dilation rod to have different outer diameters.

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

In certain embodiments, the inner rod outer diameter is 15mm or less.

In certain embodiments, the inner rod has a tapered head emerging from the water jacket.

In certain embodiments, the length of the inner rod is 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, the vaginal dilation rod further comprises a sealing cap closing the opening, the sealing cap is formed with a tapered through hole, and the top of the tapered through hole faces into 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 bowl portion engaged with the head portion and an outer bowl portion exposed from the opening, the inner bowl portion being in close fit with an inner wall of the head portion.

In some embodiments, the thickness of each part of the water bag sleeve is determined according to the water injection position and the distribution characteristics of water pressure, so that the water bag sleeve can expand uniformly under the action of the water pressure.

In some embodiments, the vaginal dilation bar further comprises a water injector for injecting water to the water bladder sleeve on demand.

In some embodiments, the vaginal dilation stick further comprises a body lubricant coated on the water bladder sleeve.

In the operation process of the vaginal dilation stick provided by the embodiment of the invention, the water bag sleeve does not or slightly inject water, so that the incision of the vaginal tunnel is dilated under the condition that the vaginal dilation stick has a smaller size, and then water is gradually injected under the condition that the vaginal dilation stick is not pulled out, so that the vaginal dilation stick is gradually dilated to a required size under the action of water injection, and thus, the abdominal pressure reduction and the formation of false tracts caused by pulling out the vaginal dilation stick are avoided.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

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

FIG. 2 is a schematic view of a vaginal dilation bar according to embodiments of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Referring to fig. 1, the vaginal dilation stick 10 of the present invention comprises an inner stick 110 and a cylindrical water sac cover 120 covering the inner stick 110, wherein the water sac cover 120 is used for expanding under the action of water injection to make the vaginal dilation stick 10 have different outer diameters.

In the vaginal dilation stick 10 of the embodiment of the invention, during the operation, the water bag sleeve 120 is not filled with water or is filled with less water, so that the incision (not shown) of the vaginal tunnel is dilated under the condition that the vaginal dilation stick 10 has a smaller size, and then water is gradually added under the condition that the vaginal dilation stick 10 is not pulled out, so that the vaginal dilation stick 10 is gradually dilated to the required size under the action of water injection, and thus, the abdominal pressure reduction and the formation of false tracts caused by pulling out the vaginal dilation stick 10 are avoided.

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

In this manner, the inner rod 110 has a higher stiffness that provides rigidity to the vaginal dilation rod 10 to achieve blunt dissection.

The outer diameter of the inner rod 110 is less than or equal to 15 mm.

Thus, the vaginal dilation rod 10 can provide a smaller outer diameter, for example, 15mm, when beginning to dilate, and according to the physiological structure and clinical experience of the human body, the outer diameter is gradually increased after blunt dilation is performed with the smaller outer diameter, so that the incision of the vaginal tunnel can be protected from being torn while smooth dilation is performed.

In the present embodiment, the outer diameter of the inner diameter 100 is 15mm, which is determined according to the physiological structure of the human body and clinical experience, but it is needless to say that other dimensions may be adopted according to the need in other embodiments, and the present invention is not limited thereto.

The inner rod 110 has a tapered head 111 exposed from the water bladder 120.

In this manner, the vaginal dilation wand 10 provides a tapered head structure that facilitates blunt dissection regardless of whether the water bladder sheath 120 is dilated. It will be appreciated that in practice, even with smaller dimensions for dilation, a tapered head configuration of the vaginal dilation bar 10 is required, and thus, is more conducive to gradual dilation.

The length of the inner rod 110 is greater than 18 cm.

As such, the vaginal dilation bar 10 can have a suitable dilation length, such as 20cm, depending also on the anatomy and clinical experience of the individual, although other lengths can be used as desired in other embodiments.

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

The inner rod 110 has a hollow structure, the head 111 is formed with an opening 112, the vaginal dilation rod 10 further comprises a sealing cap 130 for closing the opening, the sealing cap 130 is formed with a tapered through hole 113, and the top of the tapered through hole 113 faces the inside of the inner rod 110.

Thus, when the vaginal dilation bar 10 is inserted into the abdominal cavity, the sealing cap 130 is inverted under 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 preventing the air flow in the abdominal cavity from flowing outwards, causing the reduction of abdominal pressure and influencing the operating visual field of the laparoscope. On the other hand, after the vaginal tunnel is opened, a laparoscopic suturing device (not shown) may enter the inside of the inner rod 110 and then cover the vaginal tunnel with the peritoneum by ejecting the sealing cap 130, so that the sealing cap 130 is turned outwards to expose the tapered through hole 113, and thus, the laparoscopic suturing device may enter the abdominal cavity through the tapered through hole 113 to pull out the peritoneum, thereby suturing with the vestibule of the vaginal tunnel.

The inner diameter of the inner rod 110 is 11 mm.

In this manner, the vaginal dilation bar 10 provides a more suitable passage for the entry and exit of laparoscopic suturing instruments. However, this is also based on clinical experience, although other inner diameters may be used as desired in other embodiments.

The sealing cap 130 includes an inner bowl portion 131 engaged with the head 111 and an outer bowl portion 132 exposed outside the opening 112, and the inner bowl portion 131 is closely fitted to the inner wall of the head 111.

That is, the inner bowl portion 131 is also tapered to closely fit the inner wall of the head portion 111, thereby improving the sealing degree of the sealing cap 130. While the outer bowl 132 may cooperate with the head 111 to form a continuous tapered outer profile to facilitate gradual dilation of the vaginal tunnel.

The water bladder cover 120 determines the thickness of each part according to the water injection position and the distribution characteristics of the water pressure so that the water bladder cover 120 is expanded in a balanced manner under the action of the water pressure.

In this way, the vaginal dilation rod 10 can still provide the desired approximately cylindrical structure after the water cuff 120 is expanded, thereby satisfying the needs of the operation.

In addition, in order to meet the medical requirements of medical devices, the inner rod 110, the water bag cover 120 and the sealing cap 130 are made by internal high temperature and internal high pressure sterilization. Furthermore, if the composite material is manufactured by a molding process, the composite material is generally molded once and is not easy to damage.

In further embodiments, the vaginal dilation stick 10 further comprises a water injector 140 for injecting water to the water bladder sleeve 120 on demand.

In this manner, the vaginal dilation bar 10 can be expanded in size as desired.

The vaginal dilation stick 10 further comprises a body lubricant (not shown) coated on the outer surface of the vaginal dilation stick 10.

Therefore, the vaginal dilator 10 can be smoothly dilated, and the phenomenon of muscle pulling caused by overlarge resistance can be prevented.

In the description of the present specification, reference to the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example" or "some examples" or the like means that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vaginal dilation bar comprising:

an inner rod; and

the cylindrical water bag sleeve is sleeved on the inner rod and is used for expanding under the action of water injection to enable the vaginal dilation rod to have different outer diameters;

the vagina dilating rod is characterized in that the inner rod is of a hollow structure, an opening is formed in the head of the vagina dilating rod, the vagina dilating rod further comprises a sealing cap for sealing the opening, a conical through hole is formed in the sealing cap, and the top of the conical through hole faces the inside of the inner rod.

2. The vaginal dilation bar of claim 1 wherein the inner bar is made of a rigid material.

3. The vaginal dilation bar of claim 1 wherein the inner bar has an outer diameter of 15mm or less.

4. The vaginal dilation bar of claim 1 wherein the inner bar has a tapered head emerging from the water cuff.

5. The vaginal dilation bar of claim 1 wherein the length of the inner bar is greater than 18 cm.

6. The vaginal dilation bar of claim 1 wherein the inner bar has an inner diameter of 11 mm.

7. The vaginal dilation bar of claim 1 wherein the sealing cap includes an inner bowl portion that engages the head portion and an outer bowl portion that is exposed outside of the opening, the inner bowl portion being in close fit with the inner wall of the head portion.

8. The vaginal dilation stick as claimed in claim 1, wherein the thickness of each part of the water bladder sleeve is determined according to the water injection position and the distribution characteristics of water pressure so that the water bladder sleeve can be expanded evenly under the action of water pressure.

9. The vaginal dilation stick of claim 1, further comprising a water injector for injecting water to the water bladder sleeve on demand.

10. The vaginal dilation bar of claim 1, further comprising a body lubricant coated on the water bladder sleeve.