CN110638497B - Tissue stitching instrument - Google Patents
Tissue stitching instrument Download PDFInfo
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- CN110638497B CN110638497B CN201910933437.3A CN201910933437A CN110638497B CN 110638497 B CN110638497 B CN 110638497B CN 201910933437 A CN201910933437 A CN 201910933437A CN 110638497 B CN110638497 B CN 110638497B
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- clamping plate
- thread hooking
- sliding
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- 230000007246 mechanism Effects 0.000 claims abstract description 98
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000009958 sewing Methods 0.000 abstract description 19
- 208000015181 infectious disease Diseases 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000003444 anaesthetic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000023597 hemostasis Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0401—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0467—Instruments for cutting sutures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0401—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
- A61B2017/0409—Instruments for applying suture anchors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0401—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
- A61B2017/0464—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors for soft tissue
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rheumatology (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a tissue suture device, which comprises an upper clamp body and a lower clamp body; the upper clamp body is hinged with the lower clamp body, and an upper clamping part and a lower clamping part are respectively arranged at the same end of the hinged part; the same sides of the upper clamping part and the lower clamping part are respectively provided with an upper clamping plate and a lower clamping plate, and the upper clamping plate and the lower clamping plate are respectively provided with an upper wire slot and a lower wire slot; the upper clamping part is provided with a stitching machine head in a sliding manner along the extending direction of the upper wire slot, and the lower clamping part is provided with a wire hooking mechanism in a sliding manner along the extending direction of the lower wire slot. The needle and the thread hooking mechanism cooperate to suture tissues fixed between the upper clamping plate and the lower clamping plate. This design reduces the degree of difficulty of sewing through the fixed tissue of centre gripping, effectively sews up the tissue through sliding fit's aircraft nose and collude line mechanism, realizes the quick high efficiency of sewing up the processing, shortens operation time, reduces patient's risk of infection, improves the security of operation.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a tissue stapler.
Background
Tissue suturing is a basic operation technique for joining or reconstructing a channel of a tissue which has been cut or is broken by trauma or is to be cut, is a basic condition for ensuring exact hemostasis and good healing, and is one of the most basic operation methods in surgical operations. During surgery, various tissues often need to be stapled. Because the tissue is generally soft and difficult to fix, the suturing is inconvenient, the suturing treatment time is long, blood loss is relatively increased, and the wound is easy to infect; the prolonged operation time also causes the corresponding increase of the usage amount of anesthetic, which is unfavorable for the recovery of the postoperative recovery of the patient.
Disclosure of Invention
The present invention aims to solve the above technical problems at least to some extent. Therefore, the invention provides a convenient and quick tissue stitching instrument.
The technical scheme adopted for solving the technical problems is as follows: a tissue stitching instrument, which comprises an upper forceps body and a lower forceps body; the upper clamp body and the lower clamp body are hinged and are respectively provided with an upper clamping part and a lower clamping part; the upper clamping part and the lower clamping part are respectively provided with an upper clamping plate and a lower clamping plate which extend outwards from the same side, the upper clamping plate and the lower clamping plate can be spliced around the hinge joint to clamp and fix middle tissues, and the upper clamping plate and the lower clamping plate are respectively provided with an upper wire slot and a lower wire slot which can be mutually aligned and are used for wiring; the upper clamping part is slidably provided with a stitching machine head above the upper wire slot, and the lower clamping part is slidably provided with a wire hooking mechanism below the lower wire slot; the suture machine head and the thread hooking mechanism are respectively connected with a first sliding driving mechanism and a second sliding driving mechanism which can drive the suture machine head and the thread hooking mechanism to slide; the suture machine head comprises a needle aligned with the upper wire slot, and the needle and the wire hooking mechanism cooperate to suture tissues fixed between the upper clamping plate and the lower clamping plate.
Further, the upper clamp body and the lower clamp body are respectively provided with a first holding part and a second holding part at one ends of the hinging parts, which are opposite to the upper holding part and the lower holding part.
Further, the upper clamping part is connected with the first holding part through a first sloping plate; the lower clamping part is connected with the second holding part through a second inclined plate; the first inclined plate and the second inclined plate extend in opposite directions in an inclined manner; the overlapping parts of the first inclined plate and the second inclined plate are hinged through a hinge shaft.
Further, the side face of the upper clamping part corresponding to the stitching machine head is provided with a first sliding groove parallel to the upper wire groove, and the stitching machine head is provided with a first guide rail matched with the first sliding groove.
Further, the first sliding driving mechanism comprises a first driving motor and a first screw rod, the first driving motor is connected with the first screw rod to transmit power, and the first screw rod is connected with the sewing machine head in a spiral transmission manner to drive the sewing machine head to slide along the first sliding groove.
Further, a first limit screw is arranged on the side surface of the upper clamping part at the tail end of the sliding path of the stitching machine head so as to prevent the stitching machine head from sliding out of the first sliding groove.
Further, the side face of the lower clamping part corresponding to the thread hooking mechanism is provided with a second sliding groove parallel to the lower thread groove, and the thread hooking mechanism is provided with a second guide rail matched with the second sliding groove.
Further, the second sliding driving mechanism comprises a second driving motor and a second screw rod, the second driving motor is connected with the second screw rod to transmit power, and the second screw rod is in spiral transmission connection with the thread hooking mechanism to drive the second screw rod to slide along the second sliding groove.
Further, a first thread roller capable of freely rotating is arranged in the stitching machine head, and the machine needle is connected with a threading driving mechanism for driving the machine needle to reciprocate up and down; the thread hooking mechanism is provided with a threading hole corresponding to the needle, the thread hooking mechanism is provided with a thread hooking ring and a second thread roller capable of rotating freely corresponding to the threading hole, the thread hooking ring is connected with a thread hooking driving mechanism for driving the thread hooking ring to rotate around the center of the thread hooking ring, the thread hooking ring is provided with a notch, one end of the notch is provided with a thread hooking groove, and the thread hooking ring surrounds the periphery of the second thread roller.
Further, the wire cutting mechanism comprises an upper blade attached to the upper surface of the upper clamping plate and a lower blade attached to the lower surface of the lower clamping plate, the upper blade is connected with a first wire cutting driving mechanism for driving the upper blade to cut off a suture thread penetrating through the upper wire slot, and the lower blade is connected with a second wire cutting driving mechanism for driving the lower blade to cut off a suture thread penetrating through the lower wire slot.
The beneficial effects of the invention are as follows: the upper clamping plate and the lower clamping plate are used for clamping and fixing tissues, a needle on the machine head passes through the upper wire groove and the lower wire groove to be matched with the thread hooking mechanism for suturing the tissues, and the machine head and the thread hooking mechanism slide to realize quick linear suturing of the tissues; this design reduces the degree of difficulty of sewing through the fixed tissue of centre gripping, effectively sews up the tissue through sliding fit's aircraft nose and collude line mechanism, realizes the quick high efficiency of sewing up the processing, shortens operation time, reduces patient's risk of infection, improves the security of operation.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of a mounting structure according to one embodiment;
FIG. 2 is an exploded view of an installed state according to one embodiment;
FIG. 3 is a schematic view of an exploded view of upper and lower clamp bodies according to one embodiment;
FIG. 4 is a schematic structural view of a handpiece according to one embodiment;
FIG. 5 is a schematic structural view of a thread hooking mechanism according to one embodiment;
FIG. 6 is a schematic diagram of the principle of operation of a handpiece and a hooking mechanism according to one embodiment;
FIG. 7 is a schematic view showing a structure of a wire cutting mechanism, an upper clamp body and a lower clamp body in a coupled and disassembled state according to another embodiment;
FIG. 8 is a schematic view of a connection structure of a wire cutting mechanism, an upper clamp body, and a lower clamp body according to another embodiment;
fig. 9 is a schematic structural view of an upper blade according to another embodiment.
Detailed Description
The invention will now be described in detail with reference to the drawings and examples.
Referring to fig. 1 to 6, a tissue stapler of the present invention includes an upper jaw body 110 and a lower jaw body 120.
The upper clamp body 110 and the lower clamp body 120 are hinged and are respectively provided with an upper clamping part 112 and a lower clamping part 122, and the upper clamping part 112 and the lower clamping part 122 are correspondingly arranged at the same end of the hinged part. For convenient holding, the ends of the upper and lower clamp bodies 110 and 120, which are away from the upper and lower clamping portions 112 and 122 at the hinge points, are respectively provided with a first holding portion 111 and a second holding portion 121, so that the upper and lower clamp bodies can be held like pliers without being clamped by forceps, and the upper and lower clamp bodies 112 are preferably connected with the first holding portion 111 through a first inclined plate 113; the lower clamping part 122 is connected with the second holding part 121 through a second sloping plate 123; the first inclined plate 113 and the second inclined plate 123 extend obliquely in opposite directions, the overlapping parts of the first inclined plate 113 and the second inclined plate 123 are hinged through a hinge shaft, as shown in fig. 2, the first inclined plate 113 and the second inclined plate 123 are respectively provided with a first hinge hole 119 and a second hinge hole 129, and the first hinge hole 119 and the second hinge hole 129 are aligned and pass through the hinge shaft to finish hinge installation.
The upper clamping part 112 and the lower clamping part 122 are respectively provided with an upper clamping plate 114 and a lower clamping plate 124 which extend outwards from the same sides, the upper clamping plate 114 and the lower clamping plate 124 are arranged on the edges of the upper clamping part 112 and the lower clamping part 122 which are close to each other in opposite directions, and the upper clamping plate 114 and the lower clamping plate 124 can be spliced around the hinge to clamp and fix middle tissues, and the upper clamping plate 114 and the lower clamping plate 124 are parallel to the axis of the hinge shaft. That is, the upper clamping portion 112 and the lower clamping portion 122 are brought together until they are stopped when the upper clamp plate 114 and the lower clamp plate 124 are brought into contact, at which time the upper clamp plate 114 and the lower clamp plate 124 are brought into contact so as to clamp the tissue 180 to be sutured therein.
The upper clamping plate 114 is provided with an upper wire slot 115, the lower clamping plate 124 is provided with a lower wire slot 125, the upper wire slot 115 and the lower wire slot 125 can be mutually aligned, and the upper wire slot 115 and the lower wire slot 125 respectively penetrate through the upper clamping plate 114 and the lower clamping plate 124 for wiring. The upper and lower wire grooves 115 and 125 extend in a direction parallel to the hinge shaft axis. When the upper and lower clamp plates 114, 124 are attached, the upper and lower wire slots 115, 125 are aligned for threading the wire.
The upper clamping part 112 is slidably mounted with a stitching head 130 above the upper wire slot 115, the stitching head 130 and the wire hooking mechanism 140 are on the same side with the upper clamping plate 114 and the lower clamping plate 124, the stitching head 130 is connected with a first sliding driving mechanism capable of driving the stitching head 130 to slide, and the sliding direction of the stitching head 130 is parallel to the extending direction of the upper wire slot 115. Preferably, the side surface of the upper clamping portion 112 corresponding to the stitching head 130 is provided with a first chute 117 parallel to the upper wire slot 115, the stitching head 130 is provided with a first guide rail 132 matched with the first chute 117, the stitching head 130 is embedded into the first chute 117 through the first guide rail 132 to realize directional sliding, the section of the first guide rail 132 is preferably a trapezoid which is gradually opened from inside to outside, thus the stitching head 130 is prevented from overturning, and although in other embodiments, a dovetail section can be adopted, and the same purpose can be achieved. In other embodiments, the suture head 130 may slide in a number of ways, such as by a guide post and hole cooperating to provide a limited guiding function, similar to the first rail 132 and first chute 117. The first sliding driving mechanism comprises a first driving motor 150 and a first screw rod 151, the first driving motor 150 is connected with the first screw rod 151 to transmit power, the first screw rod 151 is in screw transmission connection with the stitching head 130 to drive the stitching head to slide along the first chute 117, as shown in fig. 2 and 4, the stitching head 130 is provided with a first screw hole 133 matched with the first screw rod 151, the first screw rod 151 is threaded in the first screw hole 133 and is in screw (threaded) connection with the first screw rod, and the axis of the first screw rod 151 is parallel to the extending direction of the first chute 117. Of course, in other embodiments, the first slide drive mechanism may also be a telescoping motor or other telescoping drive mechanism. The first sliding groove 117 extends inward from the outer end of the upper clamping part 112, so that the stitching head 130 does not fall off the first sliding groove 117, a first limit screw 170 is installed on the side surface of the upper clamping part 112 at the end of the sliding path of the stitching head 130 to prevent the stitching head 130 from sliding out of the first sliding groove 117, as shown in fig. 1 and 2, a first threaded hole 118 is provided at the end of the side surface of the upper clamping part 112 where the stitching head 130 is installed, a first limit screw 170 is installed on the first threaded hole 118, and the first limit screw 170 protrudes out of the side surface of the upper clamping part 112 to prevent the stitching head 130 from sliding out of the upper clamping part 112. Of course, in other embodiments, other blocking structures may be provided to limit the travel of the stitching head 130, such as a stop plate fixed to the side of the upper clamping portion 112 to achieve the same effect.
The lower clamping portion 122 is slidably mounted with a hooking mechanism 140 below the lower wire groove 125. The hooking mechanism 140 is connected to a second sliding driving mechanism capable of driving the hooking mechanism to slide, and the sliding direction of the hooking mechanism 140 is parallel to the extending direction of the lower wire slot 125. Preferably, the side surface of the lower clamping portion 122 corresponding to the thread hooking mechanism 140 is provided with a second sliding groove 127 parallel to the lower thread groove 125, the thread hooking mechanism 140 is provided with a second guide rail 142 matched with the second sliding groove 127, and the thread hooking mechanism 140 realizes directional sliding through the cooperation of the second guide rail 142 and the second sliding groove 127. The second rail 142 is preferably trapezoidal in cross-section, which flares from inside to outside, to prevent the hooking mechanism 140 from tipping, although in other embodiments, a dovetail cross-section may be used for the same purpose. In other embodiments, the hooking mechanism 140 can slide in a plurality of ways, for example, the sliding limiting guide is realized by the cooperation of the guide post and the hole, which is the same as the second guide rail 142 and the second chute 127. Specifically, the second sliding driving mechanism includes a second driving motor 160 and a second screw rod 161, the second driving motor 160 is connected with the second screw rod 161 to transmit power, and the second screw rod 161 is in screw transmission connection with the thread hooking mechanism 140 to drive the second screw rod 161 to slide along the second chute 127. As shown in fig. 2 and 6, the hooking mechanism 140 is provided with a second screw hole matched with the second screw rod 161, the second screw rod 161 is threaded in the second screw hole 143 and is in screw (threaded) connection with the second screw hole, and the axis of the second screw rod 161 is parallel to the extending direction of the second chute 127. Of course, in other embodiments, the second slide drive mechanism may also be a telescoping motor or other telescoping drive mechanism.
The second sliding groove 127 extends inward from the outer end of the lower clamping part 122, so that the hooking mechanism 140 does not fall off the second sliding groove 127, a second limit screw 190 is installed on the side surface of the lower clamping part 122 at the end of the sliding path of the hooking mechanism 140 to prevent the hooking mechanism 140 from sliding out of the second sliding groove 127, as shown in fig. 1 and 2, a second threaded hole 128 is provided at the end of the side surface of the lower clamping part 122 where the hooking mechanism 140 is installed, a second limit screw 190 is installed on the second threaded hole 128, and the second limit screw 190 protrudes out of the side surface of the lower clamping part 122 to prevent the hooking mechanism 140 from sliding out of the lower clamping part 122. Of course, in other embodiments, other blocking structures may be provided to limit the travel of the hooking mechanism 140, for example, fixing a limiting plate on the side of the upper clamping portion 112 may achieve the same effect.
The stapler head 130 includes a needle 131 aligned with the upper wire slot 115, the needle 131 and the hooking mechanism 140 cooperating to staple tissue held between the upper clamp plate 114 and the lower clamp plate 124. The sewing machine head 130, the needle 131 and the thread hooking mechanism 140 of the design are all designed by adopting the principle of the sewing machine, the sewing machine of the sewing machine belongs to the conventional technology, and the common thread hooking mechanisms are various, such as a rotating shuttle thread hooking mechanism, a swinging shuttle thread hooking mechanism, a curved needle thread hooking mechanism, a forked needle thread hooking mechanism and the like, the most common sewing machine belongs to the structures of the rotating shuttle and the swinging shuttle, and in addition, the patents CN201620446108.8, CN92207036.9, CN201721821983.0 and CN201620507823.8 relate to the sewing technology, and the sewing technology can be realized without extra creativity by a person in the field. Specifically, the suturing technique adopted in this embodiment is preferably that the exterior of the suturing head 130 is a housing, the first guide rail and the first spiral hole are both disposed on the housing, the suturing head 130 is internally provided with a first thread roller 134 capable of freely rotating, the first thread roller 134 is wound with a suture thread, the suture thread is threaded on the threading hole of the needle 131, the needle 131 is connected with a threading driving mechanism for driving the needle 131 to reciprocate up and down, the threading driving mechanism can stretch out and draw back a motor, or the motor drives a screw rod, the screw rod is fixedly connected with the needle 131, or other stretching and reciprocating driving mechanisms can be used, and the driving mechanism of the needle 131 belongs to the conventional technology in the art and is not limited in this regard. The thread hooking mechanism 140 is provided with a threading hole 141 corresponding to the needle 131, a thread hooking ring 145 and a second thread roller 144 capable of freely rotating are arranged below the threading hole 141 corresponding to the thread hooking mechanism 140, the second thread roller 144 is wound with a suture thread, the thread hooking ring 145 is connected with a thread hooking driving mechanism for driving the thread hooking ring 145 to rotate around the center of the thread hooking driving mechanism, and the thread hooking driving mechanism is preferably a rotating motor. The hook ring 145 has a notch, one end of the notch has a hook groove 1451, and the hook ring 145 surrounds the second wire roller 144. As shown in fig. 6, in operation, the needle 131 drives the thread to move down through the tissue 180 to be sutured, extend into the thread hooking mechanism 140, when the thread hooking mechanism descends to the lowest end, the thread hooking ring 145 rotates anticlockwise and the thread hooking groove 1451 hooks the suture thread on the needle 131 right to the left, then the needle 131 ascends and resets, the thread hooking ring 145 rotates anticlockwise until the thread hooking groove 1451 rotates to the lowest, and then the suture thread on the thread hooking groove 1451 breaks away and winds with the suture thread on the second thread roller 144 to form a suture knot, and then the thread hooking mechanism 140 and the suture head 130 synchronously move at the same speed to repeat the actions, thus completing suturing.
When the suture device works, firstly, tissues are clamped between the upper clamping plate and the lower clamping plate, the lengths of the tissues are not necessarily matched with the lengths of the upper wire groove 115 and the lower wire groove 125, and only part of the upper wire groove 115 and the lower wire groove 125 can be occupied, firstly, the suture head 130 and the thread hooking mechanism 140 are moved to one end of the tissues, and then the suture work is started. In addition, in order to avoid the exposure of the structures such as the sewing machine head 130, the first driving motor 150, the first screw rod 151, the thread hooking mechanism 140, the second driving motor 160, and the second screw rod 161, a cover (not shown) may be installed at the side of the upper clamping portion 112 and the lower clamping portion 122.
According to the structure of the above technical solution, it is inconvenient to manually cut the thread after suturing, and for this purpose, in another embodiment of the present application, as shown in fig. 7 to 9, a thread cutting mechanism 200 is further provided to implement automatic thread cutting, where the thread cutting mechanism 200 includes an upper blade 201 attached to the upper surface of the upper clamping plate 114 and a lower blade 202 attached to the lower surface of the lower clamping plate 124, and the inward sides of the upper blade 201 and the lower blade 202 are cutting edges. The upper blade 201 is connected to a first wire cutting driving mechanism for driving the upper blade to cut a suture passing through the upper wire slot 115, and the lower blade 202 is connected to a second wire cutting driving mechanism for driving the lower blade to cut a suture passing through the lower wire slot 125. Specifically, the upper blade 201 is provided with upper guide blocks 211 on the left and right sides of the upper wire casing 115, the upper clamping part 112 is provided with upper guide holes 210 corresponding to the upper guide blocks 211, the upper guide blocks 211 are provided with upper guide posts 221 inserted into the upper guide holes 210, and the back side of the upper clamping part 112 is provided with a telescopic motor connected with the upper guide posts 221 to drive the upper blade 201 to move towards the upper clamping part 112 and cut off a suture line passing through the upper wire casing 115. The lower blade 202 is provided with lower guide blocks 212 at left and right sides of the lower wire groove 125, the lower clamping part 122 is provided with a lower guide hole 220 corresponding to the lower guide block 212, the lower guide block 212 is provided with a lower guide post 222 inserted into the lower guide hole 220, and the back side of the lower clamping part 122 is provided with a telescopic motor connected with the lower guide post 222 to drive the lower blade 202 to move towards the lower clamping part 122 and cut off a suture line passing through the lower wire groove 125. The lower guide block 212 and the upper guide block 211 are respectively positioned at both sides of the moving path of the sewing machine head 130 and the hooking mechanism 140 to avoid interference with the operation thereof. In other embodiments, a plurality of motors may drive the screw rod to pass through the corresponding upper guide hole 210 and lower guide hole 220 to be in screw transmission connection with the upper guide block 211 and lower guide block 212, so as to achieve the same technical effect. When the sewing machine starts working, the upper blade 201 and the lower blade 202 are far away from the upper clamping part 112 and the lower clamping part 122 until the upper wire groove 115 and the lower wire groove 125 are positioned between the upper blade 201 and the lower blade 202 and the upper clamping part 112 and the lower clamping part 122, and after the sewing is finished, the upper blade 201 and the lower blade 202 are driven to move towards the upper clamping part 112 and the lower clamping part 122 to cut off the sewing thread, so that the whole sewing operation is completed.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and any modifications or equivalent substitutions without departing from the spirit and scope of the present invention should be covered in the scope of the technical solution of the present invention.
Claims (8)
1. A tissue stapler, characterized by: comprises an upper clamp body (110) and a lower clamp body (120);
The upper clamp body (110) and the lower clamp body (120) are hinged and are respectively provided with an upper clamping part (112) and a lower clamping part (122);
The upper clamping part (112) and the lower clamping part (122) are respectively provided with an upper clamping plate (114) and a lower clamping plate (124) which extend outwards from the same side, the upper clamping plate (114) and the lower clamping plate (124) can be rotated around a hinge joint to be spliced and attached to clamp and fix middle tissues, and the upper clamping plate (114) and the lower clamping plate (124) are respectively provided with an upper wire slot (115) and a lower wire slot (125) which can be mutually aligned and are used for wiring;
The upper clamping part (112) is slidably provided with a stitching machine head (130) above the upper wire groove (115), and the lower clamping part (122) is slidably provided with a wire hooking mechanism (140) below the lower wire groove (125);
The stitching machine head (130) and the thread hooking mechanism (140) are respectively connected with a first sliding driving mechanism and a second sliding driving mechanism which can drive the stitching machine head to slide;
The suturing head (130) comprises a needle (131) aligned with the upper wire slot (115), and the needle (131) and the hooking mechanism (140) cooperate to suture tissue fixed between the upper clamp plate (114) and the lower clamp plate (124);
A first thread roller (134) capable of freely rotating is arranged in the stitching machine head (130), and the stitching needle (131) is connected with a threading driving mechanism for driving the stitching machine head to reciprocate up and down; the thread hooking mechanism (140) is provided with a threading hole (141) corresponding to the needle (131), the thread hooking mechanism (140) is provided with a thread hooking ring (145) and a second thread roller (144) capable of freely rotating under the threading hole (141), the thread hooking ring (145) is connected with a thread hooking driving mechanism for driving the thread hooking ring (145) to rotate around the center of the thread hooking ring, the thread hooking ring (145) is provided with a notch, one end of the notch is provided with a thread hooking groove (1451), and the thread hooking ring (145) surrounds the periphery of the second thread roller (144);
The tissue stapler further comprises a thread cutting mechanism (200), the thread cutting mechanism (200) comprises an upper blade (201) attached to the upper surface of the upper clamping plate (114) and a lower blade (202) attached to the lower surface of the lower clamping plate (124), the upper blade (201) is connected with a first thread cutting driving mechanism for driving the upper blade to cut off a suture thread passing through the upper thread groove (115), and the lower blade (202) is connected with a second thread cutting driving mechanism for driving the lower blade to cut off a suture thread passing through the lower thread groove (125).
2. The tissue stapler according to claim 1, wherein: one ends of the upper clamp body (110) and the lower clamp body (120) back to the upper clamping part (112) and the lower clamping part (122) at the hinge joint are respectively provided with a first holding part (111) and a second holding part (121).
3. The tissue stapler according to claim 2, wherein: the upper clamping part (112) is connected with the first holding part (111) through a first sloping plate (113); the lower clamping part (122) is connected with the second holding part (121) through a second sloping plate (123); the first inclined plate (113) and the second inclined plate (123) extend obliquely toward each other; the overlapping part of the first inclined plate (113) and the second inclined plate (123) is hinged through a hinge shaft.
4. The tissue stapler according to claim 1, wherein: the side of the upper clamping part (112) corresponding to the stitching machine head (130) is provided with a first sliding groove (117) parallel to the upper wire groove (115), and the stitching machine head (130) is provided with a first guide rail (132) matched with the first sliding groove (117).
5. The tissue stapler according to claim 4, wherein: the first sliding driving mechanism comprises a first driving motor (150) and a first screw rod (151), the first driving motor (150) is connected with the first screw rod (151) to transmit power, and the first screw rod (151) is in screw transmission connection with the stitching machine head (130) to drive the stitching machine head to slide along the first sliding groove (117).
6. The tissue stapler according to claim 5, wherein: a first limit screw (170) is arranged on the side surface of the upper clamping part (112) at the tail end of the sliding path of the stitching head (130) so as to prevent the stitching head (130) from sliding out of the first sliding groove (117).
7. The tissue stapler according to claim 1, wherein: the side of the lower clamping part (122) corresponding to the thread hooking mechanism (140) is provided with a second chute (127) parallel to the lower thread groove (125), and the thread hooking mechanism (140) is provided with a second guide rail (142) matched with the second chute (127).
8. The tissue stapler according to claim 7, wherein: the second sliding driving mechanism comprises a second driving motor (160) and a second screw rod (161), the second driving motor (160) is connected with the second screw rod (161) to transmit power, and the second screw rod (161) is in spiral transmission connection with the thread hooking mechanism (140) to drive the second screw rod to slide along the second sliding groove (127).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910933437.3A CN110638497B (en) | 2019-09-29 | 2019-09-29 | Tissue stitching instrument |
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| CN112274201B (en) * | 2020-10-15 | 2021-07-23 | 苏州贝诺医疗器械有限公司 | Suture auxiliary instrument for laparoscopic surgery |
| CN113081113B (en) * | 2021-04-12 | 2022-06-17 | 上海交通大学医学院附属仁济医院 | Continuous suturing device for dura mater |
| CN113180758B (en) * | 2021-04-30 | 2022-06-10 | 湖州市妇幼保健院 | Endoscope minimal access surgery sewing machine |
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| KR20150054345A (en) * | 2013-11-12 | 2015-05-20 | 육상수 | suturing device |
| CN104739472A (en) * | 2015-03-13 | 2015-07-01 | 天津万和医疗器械有限公司 | Surgical cutting and suturing instrument provided with clearance control device |
| CN209136725U (en) * | 2017-10-10 | 2019-07-23 | 史惠忠 | A kind of stitching unstrument |
| CN211325268U (en) * | 2019-09-29 | 2020-08-25 | 中南大学湘雅医院 | Tissue stitching instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150054345A (en) * | 2013-11-12 | 2015-05-20 | 육상수 | suturing device |
| CN104739472A (en) * | 2015-03-13 | 2015-07-01 | 天津万和医疗器械有限公司 | Surgical cutting and suturing instrument provided with clearance control device |
| CN209136725U (en) * | 2017-10-10 | 2019-07-23 | 史惠忠 | A kind of stitching unstrument |
| CN211325268U (en) * | 2019-09-29 | 2020-08-25 | 中南大学湘雅医院 | Tissue stitching instrument |
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