CN111166397A

CN111166397A - Sealing device for single-incision laparoscopic surgery

Info

Publication number: CN111166397A
Application number: CN202010102416.XA
Authority: CN
Inventors: 王小军
Original assignee: Jiangsu Blue Area Innovative Technology Investment Co ltd
Current assignee: Jiangsu Blue Area Innovative Technology Investment Co ltd
Priority date: 2020-02-19
Filing date: 2020-02-19
Publication date: 2020-05-19

Abstract

A sealing device for single-incision laparoscopic surgery comprises an upper sealing cover, a lower sleeve and a sealing connecting piece used for being connected between the upper sealing cover and the lower sleeve in a sealing mode, wherein the upper sealing cover is an integrally formed flexible piece, an operation hole used for forming an instrument channel is formed in the top of the upper sealing cover, the number of the operation holes is at least two, and an incision used for a surgical instrument to pass through and capable of being self-sealed is formed in each operation hole. This sealing device for laparoscopic surgery passes through sealing connection spare and will go up sealed lid and lower sleeve sealing connection together, go up sealed lid and adopt integrated into one piece's flexible piece, moreover, the steam generator is simple in structure, the manufacturing is convenient, the cost is lower, in the use, surgical instruments can pass the handle hole at sealed lid body top, and can hold the apparatus outer wall tightly when the operation hole bottom incision supplies surgical instruments to pass through, avoid incision department to produce gas leakage phenomenon, it is sealed effectual, and because naked apparatus directly realizes sealed through last sealed lid, be favorable to the apparatus to be close to each other, there is obvious improvement to the flexibility of apparatus operation.

Description

Sealing device for single-incision laparoscopic surgery

Technical Field

The invention relates to a device for laparoscopic surgery, in particular to a sealing device for single-incision laparoscopic surgery.

Background

The single port laparoscopic surgery is a minimally invasive surgery that performs laparoscopic operations using a single minimally invasive incision on the body surface. Because only a single incision is needed to enter the abdominal cavity and the natural fold of the umbilical region of the human body is mostly utilized, the single-hole laparoscope has less body surface trauma and more attractive appearance compared with the traditional multi-hole laparoscope. Therefore, various incision sealing devices for single-port laparoscopic surgery have been invented. Like the chinese utility model patent of patent No. 201420444872.2 (the grant bulletin No. CN 204092191U)'s "single-hole reaches through natural cavity way laparoscopic surgery operation platform", this operation platform is equipped with membranous passageway on the inner snap ring, outer snap ring sealing washer sets up the upper end at membranous passageway, outer snap ring is connected with outer snap ring sealing washer, mobile apparatus operation platform passes through outer snap ring sealing washer and links to each other with outer snap ring, membranous apparatus passageway and air duct fix the upper end at mobile apparatus operation platform, and be a whole with mobile apparatus operation platform, its membranous apparatus passageway is equipped with a plurality ofly, and every is all big or small length inequality. Although, this operation platform can realize that the incision struts fixedly and a plurality of apparatus of single passageway insert and combine together, and can fully strut and utilize the operation incision and increase surgical instruments home range, reduce the apparatus conflict, have and reduce patient's operation incision quantity, strut, fix, protect the operation incision, increase multinomial function advantages such as single channel surgical instruments home range, for the laparoscopic surgery of haplopore and through natural chamber way provides convenience, reduce the degree of difficulty of haplopore and through natural chamber way laparoscopic surgery. However, the membrane instrument channel and the movable instrument operation platform are of separate structures and need to be manufactured through two different dies, so that the manufacturing cost is high, the structure is relatively complex, and after two different components are compounded, the sealing problem between the membrane instrument channel and the movable instrument operation platform and the sealing problem between the membrane instrument channel and the surgical instrument need to be solved, and if the membrane instrument channel and the movable instrument operation platform are not properly processed, the air leakage phenomenon is easily generated, and the working reliability of the device is further influenced. In addition, the membrane instrument channel helps to achieve sealing of the laparoscopic surgical instrument relative to the bare instrument directly through a simple sealing structure, since the outer diameter of the membrane instrument channel must be significantly increased compared to the bare instrument outer diameter, the solution of helping to achieve sealing function through the membrane instrument channel is significantly deficient compared to the bare instrument directly through a simple sealing structure when the instruments need to be brought closer together to provide a larger operating angle.

Disclosure of Invention

The invention aims to solve the technical problem of providing a sealing device for single-incision laparoscopic surgery, which has a simple sealing structure and is convenient to process and manufacture, aiming at the current situation of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: the sealing device for the single-incision laparoscopic surgery is characterized in that: the device comprises an upper sealing cover, a lower sleeve and a sealing connecting piece for sealing and connecting the upper sealing cover and the lower sleeve, wherein the upper sealing cover is an integrally formed flexible piece, operation holes for forming instrument channels are formed in the top of the upper sealing cover, the number of the operation holes is at least two, and the operation holes are provided with incisions for surgical instruments to pass through and can be self-sealed.

Preferably, the operation hole is a counter bore, the cut is arranged at the bottom of the counter bore, the cut comprises a central cutting point at the bottom of the counter bore and a cut edge distributed in a scattering shape from inside to outside from the central cutting point, the inner section of the cut edge forms a cut edge, the outer section of the cut edge forms a strip-shaped groove, and the strip-shaped groove is arranged on the outer bottom surface or the inner bottom surface of the counter bore.

In order to enable the opened cut to better hold the outer wall of the surgical instrument tightly, an annular reinforcing rib is formed on the outer bottom surface of the counter bore, and the joint of the cut edge and the strip-shaped groove is arranged at the position corresponding to the annular reinforcing rib.

In order to enable the counter bore to have a better supporting effect on surgical instruments, the counter bore is a round hole, an inner convex portion protruding into the counter bore is formed on the lower peripheral wall of the counter bore, the inner convex portion is distributed at intervals along the circumferential direction, and the outer end of the strip-shaped groove is close to the corresponding inner convex portion.

The cutting edge can be provided with a plurality of cutting edges, preferably, the cutting edges are at least 3 and the angles between the adjacent cutting edges are equal.

Further preferably, the cut edge has 4 pieces, and correspondingly, the cut forms a cross-shaped cut.

More preferably, an air inlet pipe is externally connected to the lower sleeve.

In order to connect the upper sealing cover to the lower sleeve in a sealing manner, it is preferable that the sealing connector includes an inner supporting member to which both the lower port of the upper sealing cover and the upper port of the lower sleeve are connected, and an outer fixing member provided at an outer circumference of the inner supporting member, the upper sealing cover and the lower sleeve being fastened between the inner supporting member and the outer fixing member.

Further preferably, be equipped with on the periphery wall of interior support piece along the last spacing groove and the spacing groove down that circumference distributes, the internal perisporium of the lower port of going up sealed lid has to inlay and establishes go up spacing protruding muscle in the spacing inslot, the internal perisporium of the upper port of lower sleeve has to inlay and establishes the lower spacing protruding muscle in the spacing inslot down, the outer mounting parcel is on the lower port periphery wall of last sealed lid and the lower telescopic upper port periphery wall. Therefore, the upper sealing cover and the lower sleeve can be in sealing connection, and the air leakage of the device is prevented.

The inner support member may have a variety of configurations, and as a preferred embodiment, the inner support member is a circular ring.

As another preferred scheme, the inner supporting member is a disc, and through holes corresponding to the operation holes in a one-to-one manner are formed in the disc.

Further preferably, the through-hole includes central through-hole and periphery through-hole, the central through-hole is the round hole, the periphery through-hole is waist shape hole. Therefore, the laparoscopic surgical instrument can be supported and the movement limit degree of the laparoscopic surgical instrument is minimum on the premise of ensuring the supporting strength of the disc.

More preferably, a reinforcing rib is formed at the edge of the through hole. In this way, the structural strength of the disc can be improved.

The outer fixing member may take a variety of different configurations, and is preferably a ferrule or clip.

Compared with the prior art, the invention has the advantages that: this sealing device for laparoscopic surgery passes through sealing connection spare and goes up sealed lid and lower sleeve sealing connection together, go up sealed lid and adopt integrated into one piece's flexible piece, moreover, the steam generator is simple in structure, the manufacturing is convenient, the cost is lower, in the use, surgical instruments can pass the counter bore at sealed lid body top, and can hold the outer wall of apparatus tightly when the incision of counter bore bottom supplies surgical instruments to pass through, thereby avoid incision department to produce gas leakage phenomenon, it is sealed effectual, when the apparatus does not pass through, the incision can realize the self sealss, and because the direct sealed lid that has realized of last sealed lid of naked apparatus is sealed, be favorable to the apparatus to be close to each other, there is obvious improvement to the flexibility of apparatus operation.

Drawings

FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;

FIG. 2 is a schematic exploded view of a first embodiment of the present invention;

FIG. 3 is a cross-sectional view of a first embodiment of the present invention;

FIG. 4 is a schematic structural view of an upper sealing cover according to a first embodiment of the present invention;

FIG. 5 is a schematic view of the upper sealing cover shown in FIG. 4 at another angle;

FIG. 6 is a top view of the upper seal cap shown in FIG. 4;

FIG. 7 is an enlarged view of portion A of FIG. 6;

FIG. 8 is a sectional view showing the structure of the upper sealing cap shown in FIG. 4

FIG. 9 is a schematic structural view of an inner support member according to a second embodiment of the present invention;

FIG. 10 is a structural sectional view of a second embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a third embodiment of the present invention;

FIG. 12 is an exploded perspective view of a third embodiment of the present invention;

fig. 13 is an exploded perspective view of a fourth embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

The first embodiment is as follows:

as shown in fig. 1 to 3, the sealing apparatus for single incision laparoscopic surgery of the present embodiment includes an upper sealing cap 1, a lower sleeve 2, and a sealing connection member connected between the upper sealing cap and the lower sleeve. The lower sleeve 2 is communicated up and down, the upper port of the lower sleeve 2 is connected with the upper sealing cover 1 through a sealing connecting piece, the lower port of the lower sleeve 2 is provided with an outward flange 21, the lower sleeve 2 is externally connected with an air inlet pipe 4, the air inlet pipe 4 is provided with an air inlet valve 41, and the lower sleeve 2 is inflated through the air inlet pipe 4 and the air inlet valve 41.

As shown in fig. 4 to 8, the upper sealing cover 1 of the present embodiment is a flexible member formed integrally, for example, silicone, rubber, polyurethane, etc. may be used. The top of the upper sealing cover 1 is formed with 5 operation holes, and the operation holes of the present embodiment are counter bores 11, wherein 1 counter bore 11 is located at the center of the top cover 11, and the other 4 counter bores 11 are evenly distributed around the center counter bore. The counterbore 11 of the present embodiment is a circular hole for forming an instrument channel, and the bottom of the counterbore 11 is provided with a cut 12 for passing a surgical instrument (not shown).

The incision 12 of this embodiment can realize self sealedly, and the concrete structure of incision 12 is: the cut 12 includes a central cutting point 121 at the bottom of the counterbore 11 and cut edges 122 distributed radially from the central cutting point from the inside to the outside so that the cut 12 can be opened to the surroundings. The cutting edges 122 of the present embodiment have 4 strips and are distributed in a cross shape, and correspondingly, the cuts 12 form a cross-shaped cut. The inner section of the cutting edge 122 forms a cut edge 1221, i.e., the inner side of the bottom of the counterbore 11 is cut off, the outer section of the cutting edge 122 forms a strip-shaped groove 1222, i.e., the outer side of the bottom of the counterbore 11 is not cut off, and the strip-shaped groove 1222 of the embodiment is arranged on the inner bottom surface of the counterbore 11. An annular reinforcing rib 111 is formed on the outer bottom surface of the counter bore 11, the joint of the cut edge 1221 and the strip-shaped groove 1222 is arranged at the position corresponding to the annular reinforcing rib 111, and the annular reinforcing rib 111 passes through the joint of the cut edge 1221 and the strip-shaped groove 1222 with the direction indicated by the arrow B in fig. 8 as upward.

With the provision of the annular reinforcing ribs 111, the slits 12 can be prevented from being excessively opened while giving the opened slits 12 a good resilience. When the surgical instrument passes through the incision 12, the incision 12 is opened to better hold the outer wall of the instrument tightly, so that the phenomenon of air leakage between the instrument and the incision 12 is avoided, and the air tightness of the sealing device is ensured. Particularly, through the structures of the annular reinforcing ribs 111 and the strip-shaped grooves 1222, the cut 3 can be in closer contact with the outer wall of the instrument, and the air leakage prevention effect is better. When no surgical instrument is passed through the incision 12, the respective cutting edges 122 of the incision 12 are reset and the cutting edges 122 are closed, thereby achieving a self-sealing effect of the incision 12.

In addition, the lower peripheral wall of the counter bore 11 forms an inner convex part 112 protruding into the counter bore 11, the outer end of the strip-shaped groove 1222 is close to the corresponding inner convex part 112, and the inner convex part 112 not only makes the counter bore 11 more firm in structure, but also facilitates the instrument to smoothly pass through the opening at the central part without abutting against the blind end at the bottom corner, so as to cause the instrument not to pass through.

The sealing connecting piece comprises an inner supporting piece and an outer fixing piece, the lower end opening of the upper sealing cover 1 and the upper end opening of the lower sleeve 2 are both connected to the inner supporting piece, the outer fixing piece is arranged on the periphery of the inner supporting piece, and the upper sealing cover 1 and the lower sleeve 2 are fastened between the inner supporting piece and the outer fixing piece.

The inner supporting member of the embodiment is a disc 32, through holes 321 corresponding to the counter bores 11 in an up-down one-to-one manner are formed in the disc 32, and reinforcing ribs 322 are arranged on the upper edge and the lower edge of each through hole 321 to improve the strength of each through hole 321. The through hole 321 of the embodiment includes a central through hole and peripheral through holes located around the central through hole, wherein the central through hole is a circular hole, and the peripheral through holes are kidney-shaped holes, so that the movement limitation degree of the laparoscopic surgical instrument is minimum while the laparoscopic surgical instrument is supported on the premise of ensuring the disc support strength.

The outer peripheral wall of the disc 32 is provided with an upper limit groove 35 and a lower limit groove 36 which are distributed along the circumferential direction, the inner peripheral wall of the lower port of the upper sealing cover 1 is provided with an upper limit convex rib 13, and the inner peripheral wall of the upper port of the lower sleeve 2 is provided with a lower limit convex rib 22. The outer fixture of this embodiment is a ferrule 33. When the device is installed, firstly, the upper limiting convex rib 13 of the upper sealing cover 1 is embedded in the upper limiting groove 35 of the disc 32, and the lower limiting convex rib 22 of the lower sleeve 2 is embedded in the lower limiting groove 36 of the disc 32; then, the collar 33 is wrapped around the outer peripheral wall of the lower port of the upper seal cap 1 and the outer peripheral wall of the upper port of the lower sleeve 2, so that the upper seal cap 1 and the lower sleeve 2 can be sealingly connected together.

Example two:

as shown in fig. 9 and 10, compared with the first embodiment, the edge of the through hole of the disk 32 of the present embodiment has no reinforcing rib, and the rest of the structure is the same as that of the first embodiment, and will not be described herein.

Example three:

as shown in fig. 11 and 12, the external fixing member of this embodiment employs a clip 34, and is installed by fastening the upper seal cover 1 and the lower sleeve 2 to the disc 32 by the clip 34 after the upper seal cover 1 and the lower sleeve 2 are attached to each other. When the device is disassembled, the clamp 34 is opened, and the disassembly is very convenient.

Example four:

as shown in fig. 13, the inner support member of this embodiment is a circular ring 31, and the rest of the structure is the same as that of the first embodiment, and will not be described herein.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications or improvements may be made to the present invention without departing from the principle of the present invention, for example, the number of the counter bores 11 is not limited to 5, the notches 12 are not limited to the cross-shaped notches, and other types of notches may be adopted, which are all considered to be within the protection scope of the present invention.

Claims

1. A sealing device for single incision laparoscopic surgery, comprising: the device comprises an upper sealing cover (1), a lower sleeve (2) and a sealing connecting piece used for being connected between the upper sealing cover (1) and the lower sleeve (2), wherein the upper sealing cover (1) is an integrally formed flexible piece, operation holes used for forming instrument channels are formed in the top of the upper sealing cover (1), at least two operation holes are formed, and a cut (12) allowing surgical instruments to pass through and capable of being self-sealed is formed in each operation hole.

2. The sealing device for single incision laparoscopic surgery of claim 1, wherein: the operation hole is a counter bore (11), the cut (3) is arranged at the bottom of the counter bore (2), the cut (12) comprises a center cutting point (121) located at the bottom of the counter bore (11) and a cut edge (122) which is distributed in a scattering manner from the center cutting point to the inside and the outside, the inner section of the cut edge (122) forms a cut edge (1221), the outer section of the cut edge (122) forms a strip-shaped groove (1222), and the strip-shaped groove (1222) is arranged on the outer bottom surface or the inner bottom surface of the counter bore.

3. The sealing device for single incision laparoscopic surgery of claim 2, wherein: an annular reinforcing rib (111) is formed on the outer bottom surface of the counter bore (11), and the joint of the cut edge (1221) and the strip-shaped groove (1222) is arranged at a position corresponding to the annular reinforcing rib (111).

4. The sealing device for single incision laparoscopic surgery of claim 2, wherein: the counter bore (11) is a round hole, an inner convex portion (112) protruding into the counter bore is formed on the lower peripheral wall of the counter bore (11), the inner convex portions (112) are distributed at intervals along the circumferential direction, and the outer end of the strip-shaped groove (1222) is close to the corresponding inner convex portion (112).

5. The sealing device for single incision laparoscopic surgery of claim 1, wherein: an air inlet pipe (4) is externally connected to the lower sleeve (2).

6. The sealing device for single incision laparoscopic surgery of any one of claims 1 to 5, wherein: the sealing connecting piece comprises an inner supporting piece and an outer fixing piece, the lower end opening of the upper sealing cover (1) and the upper end opening of the lower sleeve (2) are connected to the inner supporting piece, the outer fixing piece is arranged on the periphery of the inner supporting piece, and the upper sealing cover (1) and the lower sleeve (2) are fastened between the inner supporting piece and the outer fixing piece.

7. The sealing device for single incision laparoscopic surgery of claim 6, wherein: be equipped with on the periphery wall of interior support piece along upper limit groove (35) and lower spacing groove (36) that circumference distributes, the internal perisporium of the lower port of last sealed lid (1) has to inlay establishes go up spacing protruding muscle (13) in last spacing groove (35), the internal perisporium of the upper port of lower sleeve (2) has to inlay establishes lower spacing protruding muscle (22) in lower spacing groove (36), the external fixation piece parcel is on the upper port periphery wall of the lower port periphery wall of last sealed lid (1) and lower sleeve (2).

8. The sealing device for single incision laparoscopic surgery of claim 7, wherein: the inner support is a circular ring (31).

9. The sealing device for single incision laparoscopic surgery of claim 7, wherein: the inner supporting piece is a disc (32), and through holes (321) which are in one-to-one correspondence with the operation holes are formed in the disc (32).

10. The sealing device for single incision laparoscopic surgery of claim 7, wherein: the outer fixing piece is a ferrule (33) or a clamping band (34).