CN214512229U

CN214512229U - Anus dilator

Info

Publication number: CN214512229U
Application number: CN202022581615.1U
Authority: CN
Inventors: 莫易凡; 马盼盼; 游诗晴; 黄志健
Original assignee: Surgaid Medical (xiamen) Co ltd
Current assignee: Surgaid Medical (xiamen) Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-10-29
Anticipated expiration: 2030-11-10

Abstract

The utility model relates to an anus dilator, which comprises a main body and a cylindrical structure extending forwards and backwards, wherein the front end of the cylindrical structure enters the body of a patient through an opening or an incision of a natural cavity; the expansion pieces are provided with at least two pieces and are distributed on the outer side surface of the body in an annular array along the central axis of the body; the sliding part is sleeved on the periphery of the body and can slide on the body along the front-back direction; a group of connecting pieces are respectively arranged on the front and the back of the expansion piece, and one ends of the two groups of connecting pieces are hinged on the expansion piece; the other end of one group of connecting pieces is hinged on the body, and the other end of the other group of connecting pieces is hinged on the sliding piece, so that the expansion piece can be far away from or close to the body when the sliding piece is moved; the sliding part is provided with a locking part which makes the sliding part static relative to the body. The utility model has the advantages that: it can get into the patient internally through natural chamber way opening or incision to increase and prevent pressing from both sides the structure, can effectively avoid expanding the in-process and cause the damage to the patient.

Description

Anus dilator

Technical Field

The utility model relates to the field of medical equipment, especially an anus expander.

Background

In the course of traditional surgical development, surgical scarring and pain are considered to be inevitable products of surgery. A natural orifice specimen surgery (NOSES) is used as a new one of minimally invasive surgery, and the war of the world scholars is raised in numerous minimally invasive surgical techniques, thereby gradually bringing about wide attention and enthusiasm of the scholars at home and abroad. The NOSES operation skillfully combines the notch-free concept of NOTES and the feasibility of laparoscopic technical operation, not only shows a perfect minimally invasive effect, but also has good safety and operability.

Surgical incisions and pain have been thought to be the inevitable course and experience of surgery, with the size of the incision directly related to the success of the procedure. Although the intra-abdominal operation reveals the surgeon's style, the series of effects of the surgical incision on the patient cannot be ignored. Compared with the conventional endoscopic surgery, NOSES has the most intuitive advantage of avoiding specimen incision of abdominal wall.

At present, no special instrument for anorectal expansion exists, and the conventional operation is completed by fingers of an operator at present, wherein two index fingers of the anus are firstly added, and then two middle fingers are added, and the index finger is 4 fingers into the anus.

And the traditional anus expansion is realized by the finger operation of an operating doctor. First, the supporting force provided based on the expansion of the index finger and the middle finger is not uniform, and the stable and effective anus expansion effect without tearing of the mucosa and the skin of the local anal canal cannot be achieved. Secondly, currently, no rectum and anus dilator is provided temporarily, and fingers of a surgeon are used for replacing the rectum and anus dilator, so that the standard and the safety of anus dilation cannot be guaranteed. In a word, the existing abdominal non-auxiliary incision transrectal and anal sampling operation has the defects of easy injury, insufficiency and lack of standardization of anal dilatation, and cannot provide powerful guarantee for popularizing the technology.

Disclosure of Invention

The utility model aims to provide a: the utility model provides an anus expander, it can get into in the patient through natural chamber way opening or incision to increase and prevent pressing from both sides the structure, can effectively avoid expanding the in-process and cause the damage to the patient.

The utility model discloses a following technical scheme realizes: anus dilator, its characterized in that: it comprises

The body 5 is a cylindrical structure extending in the front-back direction, and the front end of the body enters the body of a patient through a natural orifice or an incision;

the expansion pieces 2 are provided with at least two pieces and are distributed on the outer side surface of the body 5 in an annular array along the central axis of the body 5;

the sliding part 4 is sleeved on the periphery of the body 5 and can slide on the body 5 along the front-back direction;

a group of connecting pieces 3 are respectively arranged on the front and the back of the expansion piece 2, and one ends of the two groups of connecting pieces 3 are hinged on the expansion piece 2; the other end of one group of connecting pieces 3 is hinged on the body 5, and the other end of the other group of connecting pieces 3 is hinged on the sliding piece 4, so that the expansion piece 2 can be far away from or close to the body 5 when the sliding piece 4 is moved;

the slider 4 is provided with a locking member for making the slider 4 stationary with respect to the body 5.

Compared with the prior art, the utility model has the advantages that:

1. the utility model discloses a mode of internal expansion, then initial state diameter is less, can avoid the product to get into the patient when internal as far as possible, causes the misery to the patient.

2. The utility model discloses a controllable formula and the steady expansion of gradual change formula can further reduce patient's misery.

3. The product is additionally provided with the anti-pinch sleeve, so that the tissue is effectively prevented from being pinched by the gap between the two expansion pieces after the expansion pieces are folded.

4. The luminous piece is added, so that illumination can be provided for instruments carried out at a later stage.

Drawings

Fig. 1 is a fully expanded state diagram of the present invention;

FIG. 2 is a state diagram of the present invention during the unfolding process;

FIG. 3 is an initial state diagram of the present invention;

fig. 4 is a schematic structural view of the locking member.

Description of reference numerals: 1 anti-clamping sleeve, 2 expanding pieces, 3 connecting pieces, 4 sliding pieces, 5 bodies, 6 luminous pieces, 7 elastic pieces and 8 convex edges.

Detailed Description

The invention is explained in detail below with reference to the accompanying drawings:

as shown in fig. 1-4: the anus dilator comprises

When the body 5 is actually designed, the body 5 is cylindrical, and the expansion pieces 2 are provided with three pieces and are all arc-shaped. The sliding part 4 is a sleeve ring sleeved on the periphery of the body.

The other end of the connecting piece 3 positioned at the front side of the expansion piece 2 is hinged on the body 5; and the other end of the connecting piece 3 positioned at the rear side of the expansion piece 2 is hinged on the sliding piece 4.

The connecting piece 3 is a hard connecting rod.

In the initial state, the expansion piece is tightly attached to the body (as shown in figure 3); when in use, the sliding piece 4 slides forwards along the axial direction of the body, the expansion piece is connected with the body by the connecting piece 3, and the expansion piece moves outwards relative to the body, as shown in figure 2. The angle between the connecting piece 3 and the body gradually changes during the pushing process of the sliding piece 4, and when the included angle between the two approaches 90 degrees, the expansion piece expands to the maximum range, as shown in fig. 1.

As shown in fig. 4: the locking piece comprises an elastic piece 7 which is arranged at the rear part of the sliding piece 4 and is bent towards the outer side surface of the body 5 and a plurality of convex edges 8 which are arranged at the outer side surface of the body 5 along the front-back direction; the front side surface of the convex edge 8 is vertical to the outer side surface of the body 5, so that the sliding part 4 can be prevented from sliding backwards when receiving external force.

The locking piece can also adopt a screw rod arranged on the sliding piece 4 and limiting holes arranged on the outer side surface of the body 5 in the front-back direction to realize locking.

The degree of expansion of the expansion piece can be judged by the relative position of the elastic piece 7 and the convex edge 8 of the sliding piece. Before withdrawing the body, the elastic sheet 7 can be pried to be not blocked by the convex edge 8, so that the expansion sheet 2 can be quickly retracted.

The inner side wall surface of the body 5 is provided with a luminous piece 6. The body is generally of a hollow structure, and other instruments in the operation can be conveniently entered through the luminous piece 6, so that the observation of a doctor is facilitated.

The anti-pinch clamp is characterized by further comprising an anti-pinch sleeve 1, wherein an opening of the anti-pinch sleeve 1 is sleeved in through the front end of the body 5, and the opening of the anti-pinch sleeve 1 is connected with the rear side edge of the sliding piece 4. Because the expansion piece 2 has a gap in the retraction process, in order to avoid clamping tissues, the periphery of the expansion piece 2 is sleeved with the anti-clamping sleeve 1, and the anti-clamping sleeve 1 can adopt a latex sleeve or other similar structures with certain elasticity.

The utility model discloses a NOSES operation method, working section are lamella formula structure (multi-disc expansion piece), can provide stable even holding power, and working section anterior segment smooth surface, and the diameter is less when getting into internally, progressively expands the anus, reducible stimulation to the anus reduces the risk that the anus rectum bleeds. The body is inserted into the anus, the slider 4 assembly is slowly pushed while the locking member cooperates with the body to produce a "clicking" sound until fully expanded. When the device is withdrawn, the locking piece is released to reduce the caliber, and then the body is slowly pulled and withdrawn completely to be separated from the anus, so that the operation is simple and convenient, and the operation is convenient for doctors.

While the present invention has been shown and described with reference to particular embodiments and alternatives thereof, it will be understood that various changes and modifications can be made without departing from the spirit and scope of the invention. It is understood, therefore, that the invention is not to be limited, except as by the appended claims and their equivalents.

Claims

1. Anus dilator, its characterized in that: it comprises

The body (5) is a cylindrical structure extending in the front-back direction, and the front end of the body enters the body of a patient through a natural orifice or an incision;

the expansion pieces (2) are provided with at least two pieces and are distributed on the outer side surface of the body (5) in an annular array according to the central axis of the body (5);

the sliding part (4) is sleeved on the periphery of the body (5) and can slide on the body (5) along the front-back direction;

a group of connecting pieces (3) are respectively arranged on the front and the back of the expansion piece (2), and one ends of the two groups of connecting pieces (3) are hinged on the expansion piece (2); the other end of one group of connecting pieces (3) is hinged on the body (5), and the other end of the other group of connecting pieces (3) is hinged on the sliding piece (4), so that when the sliding piece (4) is moved, the expansion piece (2) can be far away from or close to the body (5);

the sliding part (4) is provided with a locking part which enables the sliding part (4) to be static relative to the body (5).

2. The anal dilator of claim 1, wherein: the body (5) is cylindrical, and the expansion pieces (2) are provided with three pieces and are all arc-shaped.

3. The anal dilator of claim 1, wherein: the connecting piece (3) is positioned at the front side of the expansion piece (2), and the other end of the connecting piece is hinged on the body (5); the other end of the connecting piece (3) positioned at the rear side of the expansion piece (2) is hinged on the sliding piece (4).

4. The anal dilator of claim 1, wherein: the connecting piece (3) is a hard connecting rod.

5. The anal dilator of claim 1, wherein: the locking piece comprises an elastic piece (7) which is arranged at the rear part of the sliding piece (4) and is bent towards the outer side surface of the body (5), and a plurality of convex edges (8) which are arranged at the outer side surface of the body (5) along the front-back direction; wherein the front side surface of the convex edge (8) is vertical to the outer side surface of the body (5).

6. The anal dilator of claim 1, wherein: the inner side wall surface of the body (5) is provided with a luminous piece (6).

7. The anal dilator according to any one of claims 1 to 6, wherein: the anti-pinch clamp is characterized by further comprising an anti-pinch sleeve (1), wherein an opening of the anti-pinch sleeve (1) is sleeved in through the front end of the body (5), and the opening of the anti-pinch sleeve (1) is connected with the rear side edge of the sliding piece (4).