Safe fascia anastomat and use method thereof
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a safe fascia anastomat and a use method thereof.
Background
Compared with the traditional operation, the laparoscopic operation is a newly developed minimally invasive operation method and has the advantages of small incision, quick recovery and less pain. During laparoscopic surgery treatment, 3-5 puncture channels with diameters of 5-12 mm penetrating through abdominal wall tissues need to be arranged first, so that a laparoscope and surgical instruments can enter the abdominal cavity or the thoracic cavity from the puncture channels to perform surgery. After the surgical operation is finished, the puncture channels need to be sutured after the surgical instruments are removed, so that the wound can heal smoothly.
In recent years, with the widespread use of laparoscopic surgery, post-operative suturing has become a significant problem. Currently, post-operative suturing generally uses a fascia stapler. The existing fascia anastomat basically consists of a columnar shell, a pull rod, a columnar driving handle and a reversible spreading wing connected at the lower end of the shell and the lower end of the pull rod, but the needle point is exposed when passing through the spreading wing, is easy to be inserted into the viscera of a patient, and has great potential safety hazard.
Disclosure of Invention
The invention aims to solve the problems and provides the safe fascia stapler which is reasonable in design, simple in structure and high in safety.
Another object of the present invention is to provide a method for using a safe fascia stapler with simple steps, convenient operation and high safety, aiming at the problems.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the safe fascia anastomat comprises a shell, wherein a folding transformation structure is arranged on the shell and is connected with a folding control structure, a guide channel for a suture guide needle to penetrate is arranged on the shell, the axial direction of the guide channel deviates from the axial direction of the shell, a soft cushion for the suture guide needle to penetrate is arranged on the folding transformation structure, the soft cushion and the guide channel are mutually corresponding to each other when the folding transformation structure is in an unfolding state, the folding transformation structure comprises a plurality of unfolding wings hinged to the lower end of the shell, the soft cushion is arranged on the unfolding wings, and one end of each unfolding wing far away from the lower end of the shell is hinged with a limiting protection body.
In the above-mentioned safe fascia anastomat, the axial direction of the spreading wings deviates from the axial direction of the shell when the folding transformation structure is in the unfolded state, and the axial direction of the spreading wings is parallel to the axial direction of the shell when the folding transformation structure is in the folded state.
In the above safe fascia anastomat, the folding control structure comprises a control rod, a sliding channel axially arranged along the shell is arranged on the shell, the control rod is slidably arranged in the sliding channel, and when the folding transformation structure is in an unfolding state or a folding state, the control rod can be axially positioned with the shell through the positioning structure.
In the safe fascia anastomat, the lower end of the control rod penetrates out of the lower end of the shell, and one end of the limiting protecting body, which is far away from the spreading wings, is hinged to the lower end of the control rod.
In the safe fascia anastomat, the lower end of the control rod is provided with the hinge post, one end of the limiting protector, which is far away from the unfolding wing, is hinged on the hinge post, and the outer side of the hinge post is sleeved with the protective cap.
In the above safe fascia anastomat, the control rod comprises an upper rod and a lower rod which are axially positioned and circumferentially connected in a rotating way, the positioning structure comprises at least one positioning pin, the upper rod is provided with at least one expanding positioning hole and one collapsing positioning hole which are mutually corresponding, and a slideway is arranged between the expanding positioning hole and the collapsing positioning hole which are mutually corresponding; when the locating pin is positioned in the unfolding locating hole, the folding transformation structure keeps an unfolding state, when the locating pin is positioned in the folding locating hole, the folding transformation structure keeps a folding state, and when the locating pin is positioned in the slideway, the control rod is connected with the shell in a sliding way.
In the above safe fascia anastomat, the sliding channel comprises an upper channel and a lower channel which are communicated with each other, the cross sections of the upper rod and the upper channel are circular, and the cross sections of the lower rod and the lower channel are polygonal.
In the above safe fascia anastomat, the spreading wings are provided with mounting holes for mounting the soft cushion, the upper side and the lower side of the mounting holes are respectively provided with pinholes for the suture guide needles to pass through, and the pinholes are mutually corresponding to the guide channels when the folding transformation structure is in an unfolding state.
In the safe fascia anastomat, the suture guide needle comprises a needle rod, the needle rod is connected with the needle point through a guide part, the axial direction of the guide part deviates from the axial direction of the needle rod, a suture guide hole is formed in the guide part, a hole opening of the suture guide hole is positioned at the outer side of the lower end of the guide part, and the hole bottom of the suture guide hole is positioned in the middle of the upper end of the guide part.
The application method of the safe fascia anastomat comprises the following steps:
a1: the safe fascia anastomat in the furled state enters the abdominal cavity through the puncture channel;
A2: the control rod slides upwards to an upper limit position so as to enable the safe fascia anastomat to be in a unfolding state;
A3: the control rod rotates so that the control rod and the shell are axially positioned with each other through the positioning structure;
A4: the suture guide needle hung with the first suture passes through one of the guide channels, then pierces the abdominal wall tissue and enters the abdominal cavity, then passes through the soft cushion and finally abuts against the limit protector;
a5: the suture guide needle is sequentially withdrawn from the soft pad, the abdominal wall tissue and the guide channel so as to clamp the first suture clip to the soft pad;
a6: the suture guide needle hung with the second suture passes through the other guide channel, then pierces the abdominal wall tissue and enters the abdominal cavity, then passes through the soft cushion and finally abuts against the limit protector;
a7: the suture guide needle is sequentially withdrawn from the soft pad, the abdominal wall tissue and the guide channel so as to clamp the second suture clip to the soft pad;
A8: the control rod rotates so that the control rod and the shell slide mutually;
A9: the control rod slides downwards to a lower limit position so as to enable the safe fascia anastomat to be in a furled state;
A10: the safe fascia anastomat is withdrawn from the puncture channel so as to bring the first suture and the second suture out of the puncture channel;
a11: the first suture and the second suture are tied to each other.
Compared with the prior art, the safe fascia anastomat and the use method thereof have the advantages that:
1. The suture guide needle penetrates through abdominal wall tissues and enters the abdominal cavity, then penetrates through the soft cushion, and finally the needle tip is abutted against the limiting protector, so that the needle tip cannot be inserted into organs or tissues of a patient, the safety of fascia tissue suture operation is improved, and the protection performance on the patient is better;
2. The soft cushion can clamp the suture, so that the first suture and the second suture can be brought out of the puncture channel after the safe fascia anastomat exits from the puncture channel, no extra suture clamping operation is needed, and the steps are simplified;
3. the protective cap prevents the safe fascia anastomat from damaging the viscera due to the fact that the safe fascia anastomat is too deep into the abdominal cavity.
Drawings
Fig. 1 provides a schematic structural view of the present invention in an expanded state.
Fig. 2 provides a partial enlarged view at a in fig. 1.
Fig. 3 provides a schematic structural view of a suture guide needle.
FIG. 4 provides a schematic structural view of the present invention in an expanded state with the first shell portion and the protective cap removed.
Fig. 5 provides a schematic view of the structure of the present invention in a collapsed state.
In the drawing, a housing 1, a guide path 11, a first housing part 12, a second housing part 13, a slide path 14, an upper path 15, a lower path 16, an upper positioning step 17, a lower positioning step 18, a folding conversion structure 2, a wing 21, a limit protector 22, a groove 23, a hinge post 24, a protective cap 25, a mounting hole 26, a needle hole 27, a folding control structure 3, a control lever 31, an upper lever 32, a lower lever 33, a positioning structure 4, a folding positioning hole 41, a folding positioning hole 42, a slide rail 43, a bracelet 44, a suture guide needle 5, a needle bar 51, a guide 52, a needle tip 53, a suture guide hole 54, and a handle 55.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more apparent, the present invention is further described below with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the described embodiments, but includes all modifications, variations and equivalents falling within the scope of the appended claims.
The safe fascia anastomat is mainly applied to the suture of puncture channels in laparoscopic surgery, and can be applied to the suture of other puncture channels of human bodies in surgery.
As shown in fig. 1, the intrinsically safe fascia stapler comprises a housing 1, wherein the housing 1 is formed by mutually connecting a first housing part 12 and a second housing part 13, a folding transformation structure 2 is arranged on the housing 1, the folding transformation structure 2 is connected with a folding control structure 3, a guide channel 11 for a suture guide needle 5 to penetrate is arranged on the housing 1, the guide channel 11 is preferably formed by a gap between the first housing part 12 and the second housing part 13, the axial direction of the guide channel 11 deviates from the axial direction of the housing 1, the angle between the axial direction of the guide channel 11 and the axial direction of the housing 1 is preferably 10-15 degrees, the folding transformation structure 2 is provided with a soft cushion for the suture guide needle 5 to penetrate, the soft cushion is made of soft materials, preferably rubber, polyurethane and silica gel, and the soft cushion and the guide channel 11 are mutually correspondingly arranged when the folding transformation structure 2 is in an unfolding state. The soft cushion can clamp the suture, so that the first suture and the second suture can be brought out of the puncture channel after the safe fascia anastomat exits from the puncture channel, no extra suture clamping operation is needed, and the steps are simplified.
The unfolding of the folding transformation structure 2 is further described below.
As shown in fig. 1-2, the folding transformation structure 2 comprises a plurality of wings 21 hinged at the lower end of the housing 1, the number of wings 21 is preferably two and symmetrically arranged, soft pads are arranged on the wings 21, the axial direction of the wings 21 deviates from the axial direction of the housing 1 when the folding transformation structure 2 is in a unfolded state, preferably, the axial direction of the wings 21 is mutually perpendicular to the axial direction of the housing 1, as shown in fig. 5, a suture guide needle is not shown in fig. 5, and the axial direction of the wings 21 is mutually parallel to the axial direction of the housing 1 when the folding transformation structure 2 is in a folded state.
The lower end of the control rod 31 penetrates out of the lower end of the shell 1, one end of each spreading wing 21 far away from the lower end of the shell 1 is hinged with a limiting protection body 22, the limiting protection body 22 is preferably composed of two limiting protection parts connected through a buckle, a groove 23 for the suture guide needle 5 to enter is formed in the limiting protection body 22, when the folding transformation structure 2 is in a unfolding state, the groove 23 and the guide channel 11 are correspondingly arranged mutually, and one end of the limiting protection body 22 far away from the spreading wings 21 is hinged to the lower end of the control rod 31; specifically, the lower end of the control rod 31 is provided with a hinge post 24, one end of the limiting protector 22, which is far away from the display wings 21, is hinged on the hinge post 24, the outer side of the hinge post 24 is sleeved with a protective cap 25, the end part of the protective cap 25 is preferably spherically arranged, and the hinge post 24 is preferably in threaded connection with the protective cap 25. The spreading wings 21 are provided with mounting holes 26 for mounting the soft cushion, one sides of the mounting holes 26 are sunken so that the soft cushion can be clamped in the mounting holes 26, pinholes 27 for the suture guide needles 5 to pass through are respectively arranged on the upper side and the lower side of the mounting holes 26, the pinholes 27 are preferably in nonlinear symmetrical structures, and the pinholes 27 are respectively arranged corresponding to the guide channels 11 when the folding transformation structure 2 is in a unfolded state.
The suture guide needle 5 penetrates through abdominal wall tissues to enter the abdominal cavity, then penetrates through the soft cushion, and finally the needle tip 53 abuts against the limiting protector 22, so that the needle tip 53 cannot be inserted into organs or tissues of a patient, the safety of fascia tissue suture operation is improved, and the protection performance on the patient is better; the protective cap 25 prevents the safe fascia stapler from damaging the viscera due to the fact that the safe fascia stapler is too deep into the abdominal cavity.
The unfolding of the folding control structure 3 will be further described below.
As shown in fig. 4, the folding control structure 3 includes a control rod 31, a sliding channel 14 axially disposed along the housing 1 is disposed on the housing 1, the control rod 31 is slidably disposed in the sliding channel 14, and when the folding conversion structure 2 is in the unfolded state or the folded state, the control rod 31 can be mutually positioned with the housing 1 axially through the positioning structure 4.
The control rod 31 comprises an upper rod 32 and a lower rod 33 which are axially positioned and circumferentially connected in a rotating way, the upper end of the upper rod 32 is connected with a bracelet 44, the positioning structure 4 comprises at least one positioning pin, the number of the positioning pins is preferably two and symmetrically arranged, the upper rod 32 is provided with at least one unfolding positioning hole 41 and a folding positioning hole 42 which are correspondingly arranged, the number of the unfolding positioning hole 41 and the folding positioning hole 42 is preferably two and symmetrically arranged, and a slideway 43 is arranged between the unfolding positioning hole 41 and the folding positioning hole 42 which are correspondingly arranged; the folding transformation structure 2 is kept in the unfolded state when the positioning pin is positioned in the unfolded positioning hole 41, the folding transformation structure 2 is kept in the folded state when the positioning pin is positioned in the folded positioning hole 42, and the control rod 31 is slidably connected with the housing 1 when the positioning pin is positioned in the slide 43.
The sliding channel 14 comprises an upper channel 15 and a lower channel 16 which are communicated with each other, the cross sections of the upper rod 32 and the upper channel 15 are circular, the cross sections of the lower rod 33 and the lower channel 16 are polygonal, the diameter of the upper channel 15 is larger than the diagonal length of the lower channel 16, so that a lower positioning step 18 is formed between the upper channel 15 and the lower channel 16, the upper end of the upper rod 32 is provided with an upper positioning step 17, when the control rod 31 is in a lower limit position, the upper positioning step 17 is abutted against the upper end of the shell 1 and/or the lower end of the upper rod 32 is abutted against the lower positioning step 18 and/or the positioning pin is abutted against the lower end of the sliding channel 14, and when the control rod 31 is in an upper limit position, the positioning pin is abutted against the upper end of the sliding channel 14.
The suture guide needle 5 deployment is further described below.
As shown in fig. 3, a breaking drawing method is used, the suture guiding needle 5 comprises a needle rod 51, the needle rod 51 is connected with a needle point 53 through a guiding part 52, the axial direction of the guiding part 52 deviates from the axial direction of the needle rod 51, a suture guiding hole 54 is formed in the guiding part 52, an orifice of the suture guiding hole 54 is located at the outer side of the lower end of the guiding part 52, the bottom of the suture guiding hole 54 is located at the middle of the upper end of the guiding part 52, a handle 55 is arranged at one end, far away from the needle point 53, of the needle rod 51, and a plurality of anti-slip particles are arranged on the handle 55.
The application method of the safe fascia anastomat comprises the following steps:
a1: the safe fascia anastomat in the furled state enters the abdominal cavity through the puncture channel;
A2: the control rod 31 is slid up to the upper limit position to bring the safety fascia stapler to the deployed state;
A3: the control rod 31 rotates so that the control rod 31 is positioned axially relative to the housing 1 by the positioning structure 4;
A4: the suture guide needle 5 with the first suture is passed through one of the guide channels 11, then penetrates through the abdominal wall tissue and enters the abdominal cavity, then passes through the soft cushion and finally abuts against the limit protector 22;
A5: the suture guide needle 5 is sequentially withdrawn from the soft pad, abdominal wall tissue and guide channel 11 so as to clamp the first suture to the soft pad;
a6: the suture guide needle 5 hung with the second suture passes through the other guide channel 11, then pierces the abdominal wall tissue and enters the abdominal cavity, then passes through the soft cushion and finally abuts against the limit protector 22;
A7: the suture guide needle 5 is sequentially withdrawn from the soft pad, the abdominal wall tissue and the guide channel 11 so as to clamp the second suture to the soft pad;
a8: the control lever 31 rotates so that the control lever 31 and the housing 1 slide with each other;
a9: the control rod 31 slides downwards to the lower limit position so as to enable the safe fascia anastomat to be in a furled state;
A10: the safe fascia anastomat is withdrawn from the puncture channel so as to bring the first suture and the second suture out of the puncture channel;
a11: the first suture and the second suture are tied to each other.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although terms of the housing 1, the guide path 11, the first housing part 12, the second housing part 13, the slide path 14, the upper path 15, the lower path 16, the upper positioning step 17, the lower positioning step 18, the folding transformation structure 2, the wings 21, the limit protector 22, the groove 23, the hinge post 24, the protective cap 25, the mounting hole 26, the needle hole 27, the folding control structure 3, the control lever 31, the upper lever 32, the lower lever 33, the positioning structure 4, the unfolding positioning hole 41, the folding positioning hole 42, the slide path 43, the hand ring 44, the suture guide needle 5, the needle bar 51, the guide 52, the needle tip 53, the suture guide hole 54, the handle 55, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.