CN103169511B - Disposable single port laparoscope leading-in device - Google Patents

Abstract

The invention relates to a disposable single-hole laparoscopic introducer, which has a rotating cover part and a ventilation ring. A rotating cover sealing ring is installed between the rotating cover part and the ventilation ring. The rotating cover sealing ring has an annular horizontal sealing body and a Inclined sealing body, the tapered inclined sealing body and the annular horizontal sealing body are integrally structured, the conical inclined sealing body has a tapered sealing lip inclined to the outside, the annular horizontal sealing body of the rotary cover sealing ring and the first step on the bottom surface of the connecting part Sealed connection, the outer end of the tapered sealing lip of the tapered inclined-plane sealing body is connected with the second step of the breather ring in a contact sealing manner. By adopting the sealing ring of the rotating cover of the present invention, not only a good seal can be obtained between the rotating cover part and the breather ring, but also the frictional resistance of the rotating cover sealing ring on the rotating cover part is small, so the rotating cover part is also easier to seal. rotate.

Description

Disposable single-port laparoscopic introducer

technical field

The invention relates to the technical field of medical instruments, in particular to a disposable single-hole laparoscopic introducer.

Background technique

The existing laparoscopic introducer needs to open 3 introduction holes for the introduction of surgical instruments, that is, it is necessary to puncture 3 holes on the skin to be operated on, for air intake, deflation, and entry of laparoscope and probe. But, the laparoscopic introducer of this form needs to open 3 operation holes on the patient's body, and the trauma that operation patient causes is bigger. On the other hand, the introducer needs to be disassembled and assembled during operation, which has higher requirements on the rotating cover part. The existing rotating cover part and the housing are sealed with an O-ring. If the sealing ring is set tightly, Then make the rotary cover part difficult to rotate, if the sealing ring is set loosely, the rotary cover part can rotate easily, but the sealing performance between the rotary cover part and the housing cannot be guaranteed, and it is easy to leak air. For some technicians, it is a dilemma.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a disposable laparoscopic introducer, the rotating cover part of which is easy to rotate and has good sealing performance.

The technical solution adopted by the present invention to solve the technical problem is: a disposable single-hole laparoscopic introducer, which has a rotating cover part and a ventilation ring, and a rotating cover sealing ring is installed between the rotating cover part and the ventilation ring. The sealing ring of the rotary cover has an annular horizontal sealing body and a tapered inclined-plane sealing body, the tapered inclined-plane sealing body and the annular horizontal sealing body are integrally structured, and the tapered inclined-plane sealing body has a tapered sealing lip inclined outward , the edge of the rotating cover part has a connecting part, the bottom surface of the connecting part has a first step that is located on the inner side and is recessed, the upper part of the breather ring has a second step that is located on the inner side and is recessed, and the annular level of the sealing ring of the rotating cover is The sealing body is in sealing connection with the first step on the bottom surface of the connecting part, and the outer end of the tapered sealing lip of the tapered sealing body is in contact sealing connection with the second step of the breather ring.

Further, there is a gap between the outer surface of the connection part of the rotating cover part and the inner surface of the second step, and there is a gap between the lower bottom surface of the connection part and the step surface of the second step.

Further, the disposable single-hole laparoscopic introducer has an upper shell, a middle shell, a lower shell, and a valve support, the middle shell is located under the upper shell, the lower shell is located under the middle shell, and the ventilation ring is located In the cavity formed by the upper shell, the middle shell, and the lower shell, the valve support is located in the cavity formed by the ventilation ring, the rotating cover part is circular, and the connecting part of the upper shell and the rotating cover part is fastened and connected .

Further, there is a gap between the outer surface of the second step of the ventilation ring and the inner surface of the upper shell.

Further, the top plane of the breather ring has a plurality of second columnar strips protruding upward arranged at intervals along the circumference, and the breather ring is snap-fitted connected with the upper shell through the second columnar bars.

Further, the body of the breather ring is provided with an air inlet and an air outlet, and each of the air inlet or air outlet is connected with an air pipe and an air valve.

Further, the bottom of the second step of the ventilation ring has a third step located on the inner side and recessed downward, and the inner side of the third step has a plurality of first columnar strips protruding inwardly arranged at intervals along the circumference. . The ventilation ring is in contact with the valve support through the first columnar strip.

Further, the outer surface of the lower part of the ventilation ring has a plurality of outwardly protruding third cylindrical pieces arranged at intervals along the circumference, and the outer surface of the lower part of the ventilation ring has a plurality of outwardly protruding cylindrical pieces arranged at intervals along the circumference. Buckle point, the breather ring is buckled connected with the middle shell through the buckle point.

Further, the top surface of the rotating cover part is provided with two flip-up flipping pieces, left and right.

Further, the rotating cover part is provided with a surgical through hole for accessing a surgical gun, a valve is installed at the surgical through hole, and the valve is supported on the rotating cover part by a fixed support, and the valve is placed on the A folded sealing ring, the folded sealing ring has a folded wave pattern, and a canvas film is glued on the folded sealing ring.

The beneficial effects of the present invention are: adopting the sealing ring of the rotating cover of the present invention, not only a good seal can be obtained between the rotating cover part and the breather ring, but also the frictional resistance of the rotating cover sealing ring on the rotating cover part is small, so , The rotating cover part is also relatively easy to rotate, which effectively solves the contradictory problems in the prior art that the rotating cover part is not easy to rotate and the sealing performance cannot be guaranteed.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of A-A in Fig. 1;

Fig. 3 is a partial top view schematic diagram of the present invention;

Fig. 4 is the structural representation of B-B in Fig. 3;

Fig. 5 is the structural representation of C-C in Fig. 4;

Among them: 1. Upper shell, 2. Middle shell, 3. Lower shell, 4. Rotary cover parts, 5. Ventilation ring, 6. Valve support, 7. Rotary cover sealing ring, 8. Fixed support, 9. Foldable Sealing ring, 10. operation through hole, 11. toggle plate, 71. annular horizontal sealing body, 72. tapered inclined-plane sealing body.

Detailed ways

The present invention will be further described now in conjunction with accompanying drawing. These drawings are simplified schematic diagrams only to illustrate the basic structure of the present invention in a schematic way, so they only show the components relevant to the present invention.

As shown in Figure 1 and Figure 2, a disposable single-hole laparoscopic introducer has a rotating cover part 4 and a ventilation ring 5, a rotating cover sealing ring 7 is installed between the rotating cover part 4 and the ventilation ring 5, and the rotating cover The sealing ring 7 has an annular horizontal sealing body 71 and a tapered inclined-plane sealing body 72, the conical inclined-plane sealing body 72 and the annular horizontal sealing body 71 are integrally structured, and the tapered inclined-plane sealing body 72 has a tapered sealing lip inclined to the outside. The edge of the cover part 4 has a connecting part, the bottom surface of the connecting part has a first step which is located inside and is recessed, the upper part of the breather ring 5 has a second step which is located inside and is recessed, and the annular horizontal sealing body 71 of the rotary cover sealing ring 7 is connected with The first step of the bottom surface of the bottom surface is sealed and connected, and the outer end of the tapered sealing lip of the tapered sealing body 72 is connected with the second step of the breather ring 5 in a contact and sealed manner. There is a gap between the outer surface of the connection part of the rotary cover part 4 and the inner surface of the second step, and there is a gap between the lower bottom surface of the connection part and the step surface of the second step.

With this type of rotary cover sealing ring 7, not only can a good seal be obtained between the rotary cover part 4 and the breather ring 5, but also the frictional resistance of the rotary cover part 4 to the rotary cover sealing ring 7 is small, therefore, The rotary cover part 4 is also relatively easy to rotate, which effectively solves the contradictory problems in the prior art that the rotary cover part is not easy to rotate and the sealing performance cannot be guaranteed.

The disposable single-hole laparoscopic introducer has an upper shell 1, a middle shell 2, a lower shell 3, and a valve support 6, the middle shell 2 is located under the upper shell 1, the lower shell 3 is located under the middle shell 2, and the ventilation ring 5 is located on the upper shell 1. In the cavity formed by the middle shell 2 and the lower shell 3, the valve support 6 is located in the cavity formed by the ventilation ring 5, the rotating cover part 4 is circular, and the connecting part of the upper shell 1 and the rotating cover part 4 is fastened and connected . There is a gap between the outer surface of the second step of the ventilation ring 5 and the inner surface of the upper shell 1 .

Since there is a gap between the outer side of the connection part of the rotary cover part 4 and the inner side of the second step, there is a gap between the lower bottom surface of the connection part and the step surface of the second step. And there is a gap between the outer surface of the second step of the ventilation ring 5 and the inner surface of the upper shell. The rotary cover part 4 and the ventilation ring 5 are only sealed by the rotary cover sealing ring 7, the frictional resistance of the rotary cover part 4 is further reduced, the frictional resistance of the ventilation ring 5 is also further reduced, and the rotary cover part 4 is easy to rotate , The upper shell 1, the rotating cover part 4, and the ventilation ring 5 are easy to disassemble and install.

The top plane of the breather ring 5 has a plurality of second columnar strips protruding upward arranged at intervals along the circumference, and the breather ring 5 is fastened and connected with the upper shell 1 through the second columnar bars.

The ring body of the ventilation ring 5 is provided with an air inlet and an air outlet, and the air inlet and the air outlet are respectively connected with a ventilation pipe and a ventilation valve. This form of setting makes the air intake and outlet of the ventilation ring 5 separate, so that the air can be taken in and released at the same time, effectively protecting the stability of the air pressure in the introducer, and can realize the effective flow of gas.

Below the second step of the ventilation ring 5 there is a third step which is located inside and recessed downward, and the inner side of the third step has a plurality of first columnar strips protruding inwardly arranged at intervals along the circumference. The ventilation ring 5 is in contact with the valve support 6 through the first columnar strip. The ventilation ring 5 and the valve support 6 do not adopt the surface contact form in the prior art, but adopt the form of the first columnar bar, which further reduces the friction between the ventilation ring 5 and the valve support 6 .

The outer surface of the lower part of the ventilation ring 5 has a plurality of outwardly protruding third columnar pieces arranged at intervals along the circumference, and the outer surface of the lower part of the ventilation ring 5 has a plurality of outwardly protruding buckling points arranged at intervals along the circumference to allow ventilation. The ring 5 is snap-connected with the middle shell 2 through snap points.

The top surface of the rotating cover part 4 is provided with two left and right flip-up flipping pieces 11 . The rotating cover part 4 is provided with a surgical through-hole 10 for accessing a surgical gun, and a valve is installed at the surgical through-hole 10, and the valve is supported on the rotating cover part 4 by a fixed support 8, and a foldable sealing ring is placed on the valve 9. The folding sealing ring 9 has a folding wave pattern, and a canvas film is stuck on the folding sealing ring 9 .

The use of the valve and foldable sealing ring 9 in this form can effectively protect the surface of the valve and foldable sealing ring 9 from scratches, and in addition, the foldable sealing ring 9 has a certain degree of elasticity, and has a certain degree of firmness, and is not easy to break. The foldable sealing ring 9 has a certain elastic margin, and the foldable sealing ring 9 is not easy to rupture and leak air when surgical equipment is passed into the operation through hole or when the operation through hole is pulled out.

Inspired by the above-mentioned ideal embodiment according to the present invention, through the above-mentioned description content, relevant workers can make various changes and modifications within the scope of not departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, but must be determined according to the scope of the claims.

Claims (10)

1. a single use single port laparoscope leading-in device, there are swivelling cover parts (4), ventilation circle (5), described swivelling cover parts (4) and ventilation are enclosed between (5) and are provided with swivelling cover sealing ring (7), it is characterized in that: described swivelling cover sealing ring (7) has annular horizontal seal (71) and tapered slope seal (72), described tapered slope seal (72) and annular horizontal seal (71) are structure as a whole, described tapered slope seal (72) has the cone seal lip tilted laterally, the edge of described swivelling cover parts (4) has connecting portion, the bottom surface of described connecting portion has the first step being positioned at inner side and also caving in, described ventilation circle (5) top has the second step being positioned at inner side and also caving in, the annular horizontal seal (71) of swivelling cover sealing ring (7) and the first step of connecting portion bottom surface are tightly connected, the second step contact seal that (5) are enclosed in cone seal lip outboard end and the ventilation of described tapered slope seal (72) is connected.

2. single use single port laparoscope leading-in device according to claim 1, it is characterized in that: between the lateral surface of the connecting portion of described swivelling cover parts (4) and the medial surface of second step, there is space, between the bottom surface of described connecting portion and the step surface of second step, there is space.

3. single use single port laparoscope leading-in device according to claim 1, it is characterized in that: described single use single port laparoscope leading-in device has upper casing (1), mesochite (2), lower casing (3), valve bracket (6), described mesochite (2) is positioned at upper casing (1) below, described lower casing (3) is positioned at mesochite (2) below, described ventilation circle (5) is positioned at upper casing (1), mesochite (2), in the cavity that lower casing (3) is formed, described valve bracket (6) is positioned at the cavity that ventilation circle (5) is formed, described swivelling cover parts (4) are circular, described upper casing (1) is fastened and connected with the connecting portion of swivelling cover parts (4).

4. single use single port laparoscope leading-in device according to claim 3, is characterized in that: have space between the lateral surface of the second step of described ventilation circle (5) and the medial surface of upper casing (1).

5. single use single port laparoscope leading-in device according to claim 3, it is characterized in that: the top planes of described ventilation circle (5) has circumferentially spaced multiple the second column-shape strip raised up, and described ventilation circle (5) is fastened and connected by the second column-shape strip and upper casing (1).

6. single use single port laparoscope leading-in device according to claim 1, is characterized in that: the circle body of described ventilation circle (5) is provided with air inlet, gas outlet, and described air inlet or gas outlet are connected with breather and gas valve separately.

7. single use single port laparoscope leading-in device according to claim 1, it is characterized in that: the below of second step of described ventilation circle (5) has and is positioned at inner side and to the 3rd step of lower recess, the medial surface of described 3rd step has circumferentially spaced multiple the first protruding to the inside column-shape strip, and described ventilation circle (5) is contacted with valve bracket (6) by the first column-shape strip.

8. single use single port laparoscope leading-in device according to claim 7, it is characterized in that: the lateral surface of described ventilation circle (5) bottom has circumferentially spaced multiple the 3rd protruding laterally column sheet, the lateral surface of described ventilation circle (5) bottom has circumferentially spaced multiple buckle point protruding laterally, and described ventilation circle (5) is connected with mesochite (2) buckle by buckle point.

9. single use single port laparoscope leading-in device according to claim 1, is characterized in that: described swivelling cover parts (4) end face is provided with left and right two sliding pieces upwards turned down (11).

10. single use single port laparoscope leading-in device according to claim 1, it is characterized in that: described swivelling cover parts (4) have one for passing into the operation through hole (10) of operation rifle, described operation through hole (10) place is provided with valve, valve is supported on swivelling cover parts (4) by hold-down support (8), described valve is placed with folding sealing circle (9), described folding sealing circle (9) has collapsible ripple glaze, and described folding sealing circle (9) is stained with canvas film.