CN213551995U - Single-hole multi-channel opener - Google Patents

The invention discloses the field of medical instruments, and particularly relates to a single-hole multichannel opener, which comprises a porous opener sleeve (I) consisting of a porous elastic cavity (1), an inner bushing (2) and a sealing ring (3), and a single-hole elastomer (II) consisting of a connecting sleeve (4) and a U-shaped elastic cavity (5), wherein the porous opener sleeve (I) can be disassembled and rotated and is sealed through the sealing ring; the porous elastic cavity (1) and the U-shaped elastic cavity (5) are made of elastic materials, the porous elastic cavity (1) is provided with elastic opening and closing holes (a) of different specifications, the elastic opening and closing holes (a) are integrally designed and are in a normally closed sealing state, and the U-shaped elastic cavity (5) is used for sealing and fixing the surgical tissue incision through three U-shaped surfaces. The single-hole multi-channel opening and closing device has the advantages of simplified design, more convenient use and operation and remarkable sealing effect.

Single-hole multi-channel opener

Technical Field

The invention belongs to the field of medical instruments, and particularly relates to a single-hole multichannel opener, which is a surgical instrument convenient to connect, good in sealing effect and capable of enabling a stable and sealed pneumoperitoneum environment to exist in a surgical process.

Background

The minimally invasive surgery needs other surgical instruments such as surgical forceps, an endoscope, an endoscopic cutting anastomat and the like to be performed synchronously, the traditional puncture outfit product only can provide an instrument inlet and outlet and a tissue taking-out port channel, and one minimally invasive surgery often performs porous incision through the abdominal wall and the chest wall, so that the degree of human body trauma is increased, and the attractiveness is influenced. Compared with the traditional porous incision endoscopic surgery, the single-hole incision endoscopic surgery appearing in the market has fewer incisions and is more attractive, and the single-hole incision endoscopic surgery is the development direction of surgical surgeries. In the existing minimally invasive endoscopic surgery, because the inner wall of the abdominal cavity of a patient is separated from the internal organs by injecting carbon dioxide into the abdominal cavity of the patient, namely pneumoperitoneum, and a surgical space is established, in the process of establishing the pneumoperitoneum, the air leakage of an outer sleeve and the incision part of human tissues or the air leakage of a sealing structure often occurs, or the insertion angle of the puncture outfit can be continuously adjusted and surgical instruments can be taken out or inserted in a reciprocating way according to the surgical requirements during the whole surgical process, the puncture outfit can also slip and leak up and down, and particularly, the design defect of the sealing structure of the protection sleeve of the existing popular protection sleeve type single-hole multi-channel puncture outfit is that the puncture outfit cannot be completely attached to the incision, the puncture outfit slips and leak up and down more easily, the surgical incision cannot be opened, the surgical channel is narrow, and the phenomenon of 'racking' of various surgical instruments occurs, the operation is inconvenient, which affects the operation; the other hard sleeve type single-hole multi-channel puncture outfit cannot completely fit with the incision, and generates air leakage and up-and-down movement; the design of the multi-channel double-layer sealing structure needs the double-layer sealing ring to be realized through an ultrasonic welding process, so that the process difficulty is high, the cost is high, the quality is difficult to guarantee, and air leakage is generated, thereby causing the failure of pneumoperitoneum establishment. From the above, the single-hole multi-channel puncture outfit in the prior art is inconvenient to use and has low reliability and safety.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a single-hole multichannel opener.

The single-hole multichannel opener comprises a multi-hole opening and closing sleeve consisting of a multi-hole elastic cavity, an inner bushing and a sealing ring, and a single-hole elastic body consisting of a connecting sleeve and a U-shaped elastic cavity, wherein the outer circumference and the guide angle which are arranged at the lower part of the inner bushing, and the sealing ring which is nested in the outer circumferential clamping groove penetrate into the inner hole guide angle and the inner hole which are arranged at the upper part of the connecting sleeve, the outer circumference and the buckle and the guide angle which are arranged at the upper part of the inner bushing are opened, the guide angle and the reverse buckle which are arranged on a plurality of uniformly distributed elastic clamping lugs which are arranged at the outer circumference of the upper part of the connecting sleeve are clamped, the buckle is clamped into the reverse buckle, the inner bushing and the connecting sleeve are in clearance fit, and the sealing ring and the connecting sleeve are in interference fit, so that the multi-hole opening and closing sleeve.

Preferably, the connecting sleeve is also provided with a plurality of catching lugs on the outer circumference, the clamping lugs are provided with demoulding grooves, keys and included angles, the demoulding grooves facilitate mould forming, meanwhile, the elasticity of the clamping lugs is increased, the catching lugs are pressed, or the keys are pressed inwards, the reverse buckle is separated from the buckle, and the porous opening and closing sleeve can be disassembled.

Preferably, the porous elastic cavity is made of an elastic material capable of stretching and contracting, such as silicon rubber, and a rubber lubricant spraying process is locally adopted, the porous elastic cavity is provided with a clamping groove, the outer circumference of the upper part of the inner bushing is provided with a boss, a groove and a plurality of uniformly distributed anti-slip grooves, the outer circumference boss, the groove and the anti-slip grooves are clamped by the clamping groove, the connection and the sealing between the porous elastic cavity and the inner bushing are ensured to be firm, and the anti-slip grooves are convenient for the rotation of the porous opening and closing bushing.

Preferably, the porous elastic cavity is provided with a pneumoperitoneum connecting hole and at least 4 conical elastic opening and closing holes, the elastic opening and closing holes are respectively provided with 12 specifications, 10 specifications and 5 specifications, the elastic opening and closing holes consist of conical holes, V-shaped surfaces, opening and closing seams and round corners, the opening and closing seams are in a normally closed state, the bottom diameters of the conical holes of the 12-specification elastic opening and closing holes are 11 mm, the calibers of the 12-specification elastic opening and closing holes are 13 mm, the bottom diameter of the 10-specification elastic opening and closing holes is 9 mm, the calibers of the 10 mm, the bottom diameters of the 5-specification elastic opening and closing holes are 4 mm, the calibers of the 5 mm are 6 mm, the elastic opening and closing holes respectively correspond to surgical instruments with the outer diameters of 12 mm, 10 mm and 5 mm in use, when the surgical instruments with the outer diameter of 12 mm are used, the outer circumference of the instruments props up the 11 mm bottom diameters of the conical holes to open and close the closing, meanwhile, the positive pressure generated by pneumoperitoneum in the inner cavity of the human body acts on the two surfaces of the V-shaped surface, so that the two surfaces of the V-shaped surface are pressed inwards, the opening and closing seam is closed better, and the opening and closing seam plays a role in sealing.

Preferably, the outer circumference of the connecting sleeve is also provided with a plurality of connecting bosses staggered with the elastic clamping lugs which are uniformly distributed, the upper part of the U-shaped elastic cavity is provided with a locking hole and a locking groove, the locking hole is tightly sleeved on the outer circumference of the upper part of the connecting sleeve, the locking groove is tightly clamped with the connecting bosses, and the lower part of the connecting sleeve is provided with an outer circular arc of a horn-shaped cavity, an outer circumference and an inner channel with the diameter not smaller than 38 mm.

Preferably, the U-shaped elastic cavity is a U-shaped roller-shaped cavity, the bottom and the caliber diameter of the U-shaped groove at the minimum position of an inner hole of the U-shaped elastic cavity are both larger than 40 mm, the U-shaped elastic cavity is also provided with an inner fillet, an outer fillet, an inverted outer circumference, a taper angle and a cavity channel, the material used by the U-shaped elastic cavity is an elastic shrinkage material, the inverted outer circumference is pressed relatively during operation to change the round shape into a flat shape, one corner of the flat shape is firstly squeezed into the linear gap human tissue incision, then the lower part of the U-shaped elastic cavity is completely led into the inner cavity of the inner wall of the tissue incision, the U-shaped elastic cavity recovers the original state under the self elastic action, the taper angle and the inverted outer circumference are stretched into the inner cavity of the tissue incision, the inner fillet is positioned in the tissue incision, the bottom of the U-shaped groove is positioned in the middle of the wall, the three arc surfaces of the inner fillet, the U-shaped groove bottom and the outer fillet of the U-shaped elastic cavity are tightly attached to the periphery of the linear incision to seal and open the incision, and are fixed, the outer circumference of the connecting sleeve extending into the U-shaped groove bottom exerts force to open the linear tissue incision, so that sufficient surgical channel space is ensured, and the U-shaped elastic cavity is prevented from deforming due to insufficient elasticity of the U-shaped elastic cavity and inward pressure of the incision tissue.

Compared with the prior art, the invention has the following innovation:

has the advantages that: according to the single-hole multi-channel opener, the traditional double-layer sealing ring structure is changed into the integrated elastic opening and closing hole, the design structure is simplified, the sealing effect is better, the production process is simple, and the production cost is reduced; the structural design of the U-shaped elastic cavity and the connecting sleeve ensures enough space of an operation channel, solves the problems of air leakage, infirm fixation and mutual 'racking' of instruments; the porous closing sleeve of the upper part and the single-hole elastomer of the lower part can be disassembled and rotated according to the requirements of clinical operations, and the operation is more convenient.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a perspective view of a single-hole multi-channel opener of the present invention;

FIG. 2 is a top and bottom view of the multi-channel opener of the present invention;

FIG. 3 is a sectional view of the assembly of the single-hole multi-channel opener of the present invention;

FIG. 4 is a view of the porous elastic cavity of the single-hole multi-channel opener of the present invention;

FIG. 5 is a view of the inner liner part of the single-hole multichannel shutter of the present invention;

FIG. 6 is a view of the connecting sleeve part of the single-hole multi-channel opener of the invention;

FIG. 7 is a view of the U-shaped elastic cavity of the single-hole multi-channel opener;

description of reference numerals:

Detailed Description

The invention is further described with reference to the following figures and examples.

As shown in fig. 4, the porous elastic cavity 1 is provided with a pneumoperitoneum connecting hole b and at least 4 conical elastic opening and closing holes a, the elastic opening and closing holes a have three specifications of 12, 10 and 5 respectively, the elastic opening and closing holes a are composed of a taper hole 1.1, a V-shaped surface 1.2, an opening and closing seam 1.3 and a fillet 1.5, the opening and closing seam 1.3 is in a normally closed state, the bottom diameter of the taper hole 1.1 of the elastic opening and closing hole a with 12 specifications is 11 mm, the caliber is 13 mm, the bottom diameter of the elastic opening and closing hole a with 10 specifications is 9 mm, the caliber is 11 mm, the bottom diameter of the elastic opening and closing hole a with 5 specifications is 4 mm and the caliber is 6 mm, and when the surgical instrument with 12 mm outer diameter is used, the bottom diameter of the taper hole 1.1 mm is opened by the outer circumference of the instrument, when the surgical instrument with 12 mm outer diameter is drawn out, the opening and closing seam 1.3 is restored to an original closed state due to the elastic action of the material, and meanwhile, positive pressure generated by pneumoperitoneum of the inner cavity of the human body acts on the two surfaces of the V-shaped surface 1.2, so that the two surfaces of the V-shaped surface 1.2 are pressed inwards, the opening and closing seam 1.3 is closed better, and the opening and closing seam 1.3 plays a role in sealing.

The single-hole multi-channel opener disclosed by the invention is used as follows:

tightening the elastic body at the lower part of the single-hole multi-channel opener to enable the elastic body to be flat, putting one corner of the elastic body into the tissue incision, pushing the whole lower part of the single-hole multi-channel opener into the tissue incision of a human body, and sealing and fixing the single-hole multi-channel opener; connecting the pneumoperitoneum connecting hole, injecting carbon dioxide into the patient cavity, namely performing pneumoperitoneum operation, and separating the internal wall of the abdominal cavity of the patient from the internal organ part; correspondingly penetrating the endoscope and the surgical instruments into the elastic opening and closing holes of various specifications and models to perform surgical operation; according to the needs of the operation, the porous opening and closing sleeve is grasped to rotate, and the angle of the surgical instrument is adjusted; when the biopsy tissue needs to be taken out, the upper porous opening and closing sleeve is opened.

The above-mentioned embodiments are merely technical ideas of the present invention, and embodiments thereof are not intended to limit the scope of the present invention. For those skilled in the art, the present invention may have various modifications and changes, and all that is required to implement the seal ring with an integrated structure is within the scope of the present invention. Any modification, equivalent replacement, and improvement made on the basis of the technical idea, technical solution, spirit and principle of the present invention should be included in the scope of the claims of the present invention.