WO2015100684A1

WO2015100684A1 - Sealing device of minimally invasive disposable penetrator

Info

Publication number: WO2015100684A1
Application number: PCT/CN2014/000223
Authority: WO
Inventors: 王海龙; 江世华; 吴剑雄; 郭晓东; 陈格
Original assignee: 常州威克医疗器械有限公司
Priority date: 2013-12-31
Filing date: 2014-03-10
Publication date: 2015-07-09
Also published as: CN103690203A; CN103690203B

Abstract

Disclosed is a sealing device, as a complementary surgical instrument of a minimally invasive endoscope, used with a minimally invasive disposable penetrator, which is suitable for laparoscopic examinations and establishing an abdominal surgery working channel during surgery. The sealing device comprises a locking-fixing cover (9), a split type elastic sealing ring component, a positioning-compressing ring (15) and a positioning-guiding cover (16), wherein the split type elastic sealing ring component comprises an elastic sealing ring outer ring (12-2), an elastic sealing ring inner ring (12-1), a first elastic fabric layer (11), a second elastic fabric layer (13), an upper fixing ring (14) and a lower fixing ring (10); an elastic ring with elastic wrinkles (12-2-1) is provided at the outer periphery of the elastic sealing ring outer ring (12-2), the elastic sealing ring outer ring (12-2) is provided with a compressing-positioning groove and a mounting, and a positioning hole (12-4) mounted on the lower positioning ring (10) is provided at the inner periphery of the elastic sealing ring outer ring (12-2); and the split type elastic sealing ring component is mounted on a mounting platform (9-1) at the upper end of the locking-fixing cover (9), the positioning-guiding cover (16) is mounted at the upper part of the positioning-compressing ring (15), and a positioning projection (16-3) of the positioning-guiding cover (16) is mounted and compressed in a positioning groove (9-2) of a positioning-guiding cover on the locking-fixing cover (9) and is fixed by welding.

Description

Mini-invasive disposable puncture sealing device

The invention relates to a minimally invasive disposable puncture sealing device which relates to a sealing device used for a minimally invasive disposable penetrator, which is a minimally invasive endoscope supporting surgical instrument, which is suitable for laparoscopy and surgery. Establish a working channel for abdominal surgery.

Background technique

At present, the front end of the disposable puncture cone has a sharp blade, which is easy to scratch other tissues of the internal hemorrhoid, causing bleeding, causing unnecessary pain to the patient. In addition, the gas is easily leaked during the operation of the puncture device, and the gas will be input into the abdominal cavity. Leaking out, causing the abdominal cavity to sink affect the normal operation of laparoscopic surgery.

At present, the elastic sealing cap of the disposable puncture device is made of silicone rubber. When the surgical puncture operation is performed, the tubular shape penetrates the taper cone, and the tip of the lancet puncture cone disposed at the front end is easily penetrated by the elastic sealing cap to cause the abdominal cavity to be broken. Air leaks, surgery can not be performed normally.

In addition, the elastic sealing ring in the minimally invasive disposable puncture sealing device Chinese patent 2012203167506, the surgical instrument is inserted in the puncture hole of the elastic sealing ring during the puncture operation, because the elastic cloth strength is adhered on both sides of the elastic sealing ring High, the surgical instruments are difficult to shake left and right, and the operation is inconvenient.

Summary of the invention

The object of the present invention is to provide a minimally invasive disposable puncture sealing device for the above-mentioned deficiencies, comprising a locking fixing cover, a split type elastic sealing ring assembly, a pressing ring and a positioning guiding cover, and the sealing performance is reliable, minimally invasive Use disposable puncture seal device and disposable puncture device, because of the use of gas barrier seals, split-type elastic seal ring components, etc. The sealing device has reliable sealing performance. The gas injected into the abdominal cavity through the injecting valve of the disposable puncture device during the operation will not leak out during the operation, which can ensure the normal operation of the abdominal cavity and is safe and reliable. Since the elastic sealing cap inner ring and the elastic sealing cap outer ring of the split type elastic sealing ring assembly adopt a split structure, the surgical instruments can be shaken left and right during the operation, the operation operation space is large, the operation is convenient, the operation time is shortened, and the patient is reduced pain.

The invention relates to a minimally invasive disposable puncture sealing device which is realized by the following technical solutions:

A minimally invasive disposable puncture seal device includes a locking and fixing cover, a split type elastic sealing ring assembly, a positioning pressing ring and a positioning guide cover. The upper end of the locking fixing cover is provided with a mounting platform for mounting the elastic sealing ring assembly, and the mounting platform is provided with a hole for piercing the cone. The upper end of the locking fixing cover is further provided with a positioning guide cover positioning groove for positioning and positioning the guiding cover. A mounting buckle is disposed on the inner side of the lower end of the locking fixing cover, and a gas blocking sealing piece is pressed on the inner side of the locking fixing cover.

The split type elastic sealing ring assembly comprises an elastic sealing ring outer ring, an elastic sealing ring inner ring, an elastic cloth layer, an elastic cloth layer 2, an upper fixing ring and a lower fixing ring, the lower fixing ring end surface has no positioning column, and the upper fixing ring is provided Positioning holes. The inner part of the inner ring of the elastic sealing ring is provided with a groove, and a puncture hole is arranged in the middle of the concave groove, and a lower fixing ring mounting hole is arranged around the inner ring of the elastic sealing ring, and is used for positioning and positioning of the lower fixing ring.

The groove provided in the middle of the inner ring of the elastic sealing ring adopts a circular arc groove or a conical groove. The angle of the conical groove is 100 to 180 degrees.

Elastic sealing ring outer ring is provided with an elastic ring with elastic folds on the outer circumference, with elastic folds The outer ring of the elastic ring is provided with a pressing ring positioning groove for mounting a fixed pressing ring, which is convenient for positioning the elastic sealing outer ring, and a lower fixing ring is installed on the inner circumference of the outer ring of the elastic sealing ring to install the positioning hole.

The inner side of the elastic sealing ring is provided with a lower fixing ring mounting positioning hole, and the elastic sealing ring inner side is respectively provided with an elastic cloth layer, an elastic cloth layer 2, an elastic cloth layer, and an elastic cloth layer 2 elastic sealing ring. The inner ring is set on the positioning post of the lower fixing ring, and the lower fixing ring with the inner ring of the elastic sealing ring and the elastic cloth layer and the elastic cloth layer 2 is inserted through the positioning column and fixed under the inner circumference of the outer ring of the elastic sealing ring. The ring is mounted on the positioning hole, and then the upper fixing ring is press-fitted on the lower fixing ring positioning post through the positioning hole, so that the elastic inner ring of the sealing ring and the outer ring of the elastic sealing ring are combined to form a separate elastic sealing ring assembly, the puncture cone It does not float up and down during puncture.

The elastic cloth layer and the elastic cloth layer 2 are respectively adhered on both sides of the inner ring of the elastic sealing ring, and at the same time, the inner ring of the inner ring of the elastic sealing ring is provided with a groove and a puncture hole for reinforcing the elasticity and strength of the inner ring of the elastic sealing ring. Increasing the range of shaking of the surgical instrument, reducing the resistance of the lancet puncture set at the front end of the puncture cone, facilitating puncture, and increasing the sealing of the sealing ring, thereby preventing the elastic sealing ring from breaking when the puncture cone is puncture.

Since the outer circumference of the outer ring of the elastic sealing ring is provided with a wrinkled elastic ring and a pressing ring positioning groove, the piercing cone can swing 360 degrees in any direction when passing through the inner ring of the elastic sealing ring during puncture, which is convenient for finding a position during surgery and being flexible. Apply and ensure no air leaks.

A puncture cone guiding hole is arranged in the middle of the positioning guide cover, a puncture positioning cover positioning groove is arranged on the upper end surface of the positioning guiding cover, and a positioning protrusion is arranged on the inner side of the lower part of the positioning guiding cover.

The split type elastic sealing ring assembly is mounted on the mounting platform at the upper end of the locking fixing cover, the split type elastic sealing ring assembly is mounted on the mounting platform, and the positioning pressing ring is press-fitted in the split type bomb The upper part of the sealing ring assembly is mounted on the upper part of the positioning pressing ring, and the positioning protrusion of the positioning guiding cover is pressed into the positioning guiding cover positioning groove on the locking fixing cover 9, and is fixed by welding.

The disposable piercing device is reasonable in design, compact in structure, safe and effective in use, can greatly reduce wound area in clinical surgery, greatly shorten the operation time, reduce bleeding and postoperative infection, and improve the quality of surgery. Because the puncture cone adopts the olecranon puncture cone, it can easily penetrate the abdominal tissue without scratching other tissues in the abdominal cavity. Because of the multi-channel sealing device such as gas barrier sealing piece and split type elastic sealing ring assembly, the sealing performance is reliable. During the operation, the gas injected into the abdominal cavity through the disposable gas injection valve will not leak out during the operation, thereby ensuring the normal operation of the abdominal cavity, and the use is safe and reliable.

Since the elastic sealing cap inner ring and the elastic sealing cap outer ring of the split type elastic sealing ring assembly adopt a split structure, the surgical instruments can be shaken left and right during the operation operation, the operation operation space is large, the operation operation is convenient, the operation time is shortened, and the patient is reduced pain.

DRAWINGS

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

Fig. 1 is a schematic view of a disposable puncturing device for minimally invasive use and a state of use.

Figure 2 is a schematic view showing the structure of a disposable puncturing device for minimally invasive use.

Figure 3 is a schematic view of the locking and fixing cover of the disposable puncture seal device for minimally invasive use. 4 is a cross-sectional view of the locking and fixing cover of the minimally invasive disposable puncture seal device of FIG. 3. Fig. 5 is a schematic view showing the inner ring of the elastic sealing ring of the disposable puncture sealing device for minimally invasive use. Figure 6 is a cross-sectional view of the inner ring AA of the elastic sealing ring of the minimally invasive disposable puncture seal device of Figure 5. Figure 7 is a schematic view of the outer ring of the elastic sealing ring of the disposable puncture seal device for minimally invasive use. Figure 8 is a cross-sectional view of the outer ring BB of the elastic sealing ring of the minimally invasive disposable puncture seal device of Figure 7.

Fig. 9 is a schematic view showing the structure of a positioning guide cover for a minimally invasive disposable puncture sealing device. detailed description

Referring to Figures 1 to 9, a minimally invasive disposable puncture seal device includes a lock fastening cover 9, a split type elastic seal ring assembly, a positioning compression ring 15 and a positioning guide cover 16. The upper end of the locking fixing cover 9 is provided with a mounting platform 9-1 for mounting the elastic sealing ring assembly, and the mounting platform is provided with a hole 9-3 for piercing the cone. The upper end of the locking fixing cover 9 is further provided with a positioning guide cover positioning groove 9-2 for positioning and positioning the positioning guide cover. A mounting buckle 9-4 is disposed on the inner side of the lower end of the locking fixing cover 9, and a gas-tight sealing piece pressing collar 9-5 is disposed inside the locking fixing cover 9.

The split type elastic sealing ring assembly comprises an elastic sealing ring outer ring 12-2, an elastic sealing ring inner ring 12-1, an elastic cloth layer 11 , an elastic cloth layer 23, an upper fixing ring 14 and a lower fixing ring 10, and a lower fixing ring The 10 end face has no positioning post 10-1, and the upper fixing ring 14 is provided with a positioning hole 14-1. The inner portion of the inner ring 12-1 of the elastic sealing ring is provided with a groove 12-1-1, the middle portion of the groove 12-1-1 is provided with a puncture hole 12-1-2, and the inner portion of the inner ring 12-1 of the elastic sealing ring is fixed downward. The ring mounting hole 12-1-3 is used for positioning and positioning of the lower fixing ring 10.

The groove 12-1-1 provided in the middle of the inner ring 12-1 of the elastic sealing ring adopts a circular arc groove or a conical groove. The angle of the conical groove is 100 to 180 degrees.

The outer ring of the elastic sealing ring 12-2 is provided with an elastic ring 12-1-1 with elastic pleats, and the elastic ring 12-1-1 with elastic pleats is provided with a pressing ring positioning groove 12-2-2 for Yu An A fixed pressing ring is arranged to facilitate positioning of the elastic sealing outer ring, and a lower fixing ring mounting positioning hole 12-2-3 is arranged on the inner circumference of the elastic sealing ring outer ring 12-2.

The elastic sealing ring inner ring 12-1 is respectively provided with an elastic cloth layer 11 and an elastic cloth layer 23, and an elastic sealing ring 11 and an elastic cloth layer 13 are disposed on the lower fixing ring 10 On the positioning post 10-1, the lower fixing ring 10 with the elastic sealing ring inner ring and the elastic cloth layer 11 and the elastic cloth layer 23 is inserted into the inner circumference of the elastic sealing ring outer ring 12-2 through the positioning post. The lower fixing ring is mounted on the positioning hole 12-2-3, and the upper fixing ring 14 is pressed and mounted on the positioning post 10-1 of the lower fixing ring through the lower fixing ring mounting positioning hole 12-2-3, so that the elastic sealing ring is inside The ring 12-1 and the elastic sealing ring outer ring 12-2 are combined to form a split type elastic sealing ring assembly, which does not float up and down when the through cone is worn.

The elastic cloth layer 11 and the elastic cloth layer 13 are respectively adhered on both sides of the inner ring 12-1 of the elastic sealing ring, and the groove 12-1-1 and the puncture hole are disposed in the middle of the inner ring 12-1 of the elastic sealing ring. 12-1-2, used to strengthen the elastic and strength of the inner ring of the elastic sealing ring, increase the range of shaking of the surgical instrument, reduce the resistance of the lancet puncture set at the front end of the puncture cone, facilitate the puncture, and increase the sealing of the sealing ring, which can prevent The elastic sealing ring breaks when the puncture cone is puncture.

Since the outer circumference of the outer ring 12-2 of the elastic sealing ring is provided with a wrinkled elastic ring 12-2-1 and a pressing ring positioning groove 12-2-2, the puncture cone can pass through the inner ring of the elastic sealing ring when piercing. Swing in any direction, easy to find position during surgery, flexible application, and ensure no air leaks.

The center of the positioning guide cover 16 is provided with a puncture cone guiding hole 16-1. The upper end surface of the positioning guide cover 16 is provided with a positioning positioning cover positioning groove 16-2, and a positioning protrusion 16-3 is disposed inside the lower part of the positioning guiding cover.

The split type elastic sealing ring assembly is mounted on the mounting platform 9-1 at the upper end of the locking fixing cover 9. The split type elastic sealing ring assembly is mounted on the mounting platform 9-1, and the positioning pressing ring 15 is press-fitted on the upper part of the split type elastic sealing ring assembly. The positioning guiding cover 16 is mounted on the upper part of the positioning pressing ring 15, and the positioning guiding cover 16 is positioned. The positioning protrusion 16-3 is pressed into the positioning guide cover positioning groove 9-2 on the locking fixing cover 9, and is fixed by welding.

Working principle: When the minimally invasive disposable puncture sealing device of the present invention is used together with the disposable puncture device, the gas barrier sealing sheet 8 is first installed in the gas barrier sealing plate of the self-adjusting sealing cap 7 through the gas sealing sealing plate mounting groove. In the collar, the self-adjusting sealing cap 7 is press-fitted on the upper part of the valve body 4 of the disposable puncture device, and the locking fixing cover 9 is mounted on the self-adjusting sealing cap 7, by locking the mounting clip on the fixing cover 9 In the locking positioning cover slot of the self-adjusting sealing cover 7, the fastening is fixed, and at the same time, the gas-tight sealing piece on the inner side of the fixing cover is pressed to press the gas-tight sealing ring 8 to press. A sealing ring 3 is provided between the 剌 sleeve 2 and the valve body 4 of the - secondary puncturing device.

Minimally invasive disposable puncturing device is used in abdominal operation. Firstly, in the small incision of soft tissue of the patient's abdomen, the tip of the puncture cone 1 of the disposable puncture device is inserted into the small incision of the soft tissue of the patient's abdomen. The cone is punctured and the lower layer of the soft tissue is inserted into the soft tissue with the tapered surface of the puncture cannula 2, and the puncture cone is passed through the soft tissue of the patient's abdomen to the abdominal cavity. The puncture cannula 2 is inserted into the abdomen to the middle of the puncture tube with the puncture cone. The positioning protrusion on the fixing cover 17 at the rear of the puncture cone is inserted in the positioning groove of the positioning guide cover of the positioning guide cover 16. The casing 2 is provided with a self-adjusting sealing cap and a sealing vertebral body in the lower part of the gas barrier sealing piece 8. The lower part of the sealing vertebral body is provided with an air inlet for sealing in one direction, and when the puncture cone 1 is pulled out from the puncture casing 2 Open the valve switch 5 on the upper part of the gas injection valve 6, and the gas is injected into the abdominal cavity of the patient from the puncture cannula through the insufflation valve inlet, the valve core and the valve body 4, so that the patient's abdominal cavity is bulged, the valve is closed, and the abdominal cavity is closed. Surgical instruments can be puncture from a single dose The positioning guide cover 16, the split type elastic sealing assembly and the gas barrier sealing piece 8 are inserted into the abdominal cavity. Due to the multiple sealings of the gas barrier sealing piece 8, the elastic sealing component, etc., the performance of the sealing abdominal surgical instrument is good, and the gas is injected into the abdominal cavity. It will not leak. After the operation, the surgical instrument will be pulled out from the disposable puncture device, and the valve switch 5 will be opened. The gas injected into the abdominal cavity of the patient will be discharged from the exhaust port of the insufflation valve 6, and the gas to be injected will be discharged. Pull the disposable puncture device out of the patient's abdomen.

Claims

claims

1. A minimally invasive disposable puncture sealing device, characterized by: including a locking fixed cover, a split elastic sealing ring assembly, a positioning compression ring and a positioning guide cover; the upper end of the locking fixed cover is provided with an installation platform, It is used to install the elastic sealing ring assembly. The installation platform is provided with a hole for puncture cone puncture. The upper end of the locking fixed cover is also provided with a positioning guide cover positioning groove for positioning and installing the positioning guide cover. Inside the lower end of the locking fixed cover An installation buckle is provided, and a gas barrier sealing sheet pressing convex ring is provided on the inside of the locking fixed cover; the split elastic sealing ring assembly includes an elastic sealing ring outer ring, an elastic sealing ring inner ring, an elastic cloth layer 1, and an elastic cloth layer 2 , upper fixed ring and lower fixed ring; there is no positioning post on the end face of the lower fixed ring, the upper fixed ring is provided with positioning holes, there is a groove in the middle of the inner ring of the elastic sealing ring, and there is a puncture hole in the middle of the groove, and the inner ring of the elastic sealing ring There are mounting holes for the lower fixed ring on the periphery, which are used for the installation and positioning of the lower fixed ring;

An elastic ring with elastic folds is provided on the outer circumference of the outer ring of the elastic sealing ring. The outer ring of the elastic ring with elastic folds is provided with a compression ring positioning groove, which is used to install and fix the compression ring to facilitate positioning of the elastic sealing outer ring. Outside the elastic sealing ring There are mounting and positioning holes for the lower fixed ring on the inner circumference of the ring;

The inner ring of the elastic sealing ring is equipped with elastic cloth layer 1 and elastic cloth layer 2 respectively on both sides. The inner ring of the elastic sealing ring equipped with elastic cloth layer 1 and elastic cloth layer 2 is set on the positioning post of the lower fixed ring. The inner ring of the sealing ring and the lower fixing ring of elastic cloth layer one and elastic cloth layer two are inserted into the lower fixing ring installation positioning hole set on the inner circumference of the outer ring of the elastic sealing ring through the positioning post, and then press the upper fixing ring through the positioning hole. It is tightly installed on the positioning column of the lower fixed ring, so that the elastic inner ring of the sealing ring and the outer ring of the elastic sealing ring are combined into one body to form a split elastic sealing ring assembly, and the puncture cone will not float up and down when piercing;

A puncture cone guide hole is provided in the middle of the positioning guide cover, a puncture positioning cover positioning groove is provided on the upper end surface of the positioning guide cover, and a positioning protrusion is provided on the inner side of the lower part of the positioning guide cover;

The split elastic sealing ring assembly is installed on the installation platform at the upper end of the locking fixed cover. The split elastic sealing ring assembly is installed on the installation platform. The positioning compression ring is press-fitted on the upper part of the split elastic sealing ring assembly. The positioning guide cover is installed on the On the upper part of the positioning pressing ring, the positioning protrusion of the positioning guide cover is installed in the positioning groove of the positioning guide cover on the locking fixed cover, and is fixed by welding.

2. A minimally invasive disposable puncture sealing device according to claim 1, characterized in that: The groove provided in the middle part of the inner ring of the elastic sealing ring adopts an arc-shaped groove or a conical groove.

3. A minimally invasive disposable puncture sealing device according to claim 2, characterized in that: the angle of the conical groove is 100 to 180 degrees.