CN110664449B - Cutting stitching instrument suitable for minimally invasive surgery - Google Patents
Cutting stitching instrument suitable for minimally invasive surgery Download PDFInfo
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- CN110664449B CN110664449B CN201911069539.1A CN201911069539A CN110664449B CN 110664449 B CN110664449 B CN 110664449B CN 201911069539 A CN201911069539 A CN 201911069539A CN 110664449 B CN110664449 B CN 110664449B
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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
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
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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
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
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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
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00353—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery one mechanical instrument performing multiple functions, e.g. cutting and grasping
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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
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07271—Stapler heads characterised by its cartridge
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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
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07285—Stapler heads characterised by its cutter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Life Sciences & Earth Sciences (AREA)
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- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a cutting suture device suitable for minimally invasive surgery, which comprises a main rod, a tail end rod, a handle fixing rod, a pressing rod and a clamping rod; the front side of the main rod is provided with a cutting surface; the clamping rod is hinged at the tangent plane in a swinging manner; a nail bin groove is arranged on the tangential plane; two cutting push heads are arranged in the nail bin groove side by side; two firing mechanisms for cutting and pushing the nail heads are arranged in the main rod; the tail end rod is fixedly arranged at the tail end of the main rod, and two locking mechanisms for locking the two firing mechanisms are arranged on the tail end rod respectively. The cutting stitching instrument utilizes the two firing mechanisms to respectively and laterally select cutting and stitching the two cutting nail pushing heads, so that the firing is selected according to the side edge of the tissue to be cut, the tissue cutting and stitching can be completed once after the firing, and the use is flexible and convenient; the rod-shaped structure such as the main rod and the clamping rod is utilized to meet the use requirement of small space in the minimally invasive surgery.
Description
Technical Field
The invention relates to a cutting suture device, in particular to a cutting suture device suitable for minimally invasive surgery.
Background
At present, when performing minimally invasive surgery, it is often necessary to cut and suture tissue, but the existing cutting and suturing devices are not suitable for minimally invasive surgery due to the large volume of the devices, and the devices suitable for cutting and suturing tissue are relatively independent. Therefore, it is necessary to design a cutting and suturing device suitable for minimally invasive surgery, which can be completed by only one device when cutting and suturing tissues, and can meet the use requirement of minimally invasive surgery.
Disclosure of Invention
The invention aims to: the cutting stitching instrument is suitable for minimally invasive surgery, can cut and stitch tissues, and meets the use requirement of minimally invasive surgery.
The technical scheme is as follows: the invention provides a cutting suture device suitable for minimally invasive surgery, which comprises a main rod, a tail end rod, a handle fixing rod, a pressing rod and a clamping rod;
the front side of the main rod is provided with a tangential plane which is parallel to the axial direction of the main rod; the clamping rod is hinged at the tangent plane in a swinging way and is used for pressing on the tangent plane after swinging; a nail bin groove for placing a nail bin is axially arranged on the tangential plane along the main rod; two cutting push heads are arranged in the nail bin groove side by side; two firing mechanisms for cutting and pushing the nail heads are arranged in the main rod; the tail end rod is fixedly arranged at the tail end of the main rod, and two locking mechanisms for locking the two firing mechanisms are arranged on the tail end rod respectively;
the handle fixing rod is fixedly arranged on the rear end face of the tail end rod, and is axially parallel to the main rod; the rear end face of the tail end rod is provided with a rear end hinge notch, and the pressing rod is hinged on the rear end hinge notch in a swinging manner; a guide rod is hinged at the tail end of the pressing rod in a swinging way; a guide rod hole is arranged at the tail end of the handle fixing rod; the end part of the guide rod penetrates through the guide rod hole, an external thread is arranged on the penetrating end part, and a butterfly nut is screwed on the external thread; a rebound pressure spring is sleeved on the guide rod and is elastically supported between the handle fixing rod and the pressing rod; the clamping rod is driven to swing through the transmission structure after the pressing rod swings.
Further, the cutting nail pushing head is integrally formed by a nail pushing supporting plate, a bottom connecting plate and a cutting blade; the nail pushing support plate is parallel to the cutting blade, and the bottom connecting plate is connected between the nail pushing support plate and the lower side edge of the cutting blade; the front side of the cutting blade is provided with an arc-shaped cutting edge which is concave in an arc shape; the inner side surface of the clamping rod is provided with a blade groove, and the upper side edge of the cutting blade is embedded into the blade groove after the clamping rod is pressed; when the two cutting push heads are arranged side by side, the two cutting blades are close to each other and positioned between the two push pin supporting plates.
Further, a supporting slope surface is arranged on the front side edge of the nail pushing supporting plate.
Further, a strip-shaped pressing groove is formed in the edges of the lengths of the two sides of the side edge of the tangent plane, and an anti-slip rubber strip is arranged on the clamping rod and at the position opposite to the strip-shaped pressing groove.
Further, the two firing mechanisms comprise firing bars, guide lock bars, guide sliding blocks and firing pressure springs; two guide sliding holes are axially formed in the main rod; the two guide sliding blocks are respectively and slidably arranged in the two guide sliding holes; the rear ends of the two firing bars penetrate through the two guide sliding holes through the nail bin grooves and are respectively fixed on the front side surfaces of the two guide sliding blocks; the front ends of the two firing bars are respectively fixed on the two cutting nail pushing heads; two lock rod holes are axially arranged at the rear end of the main rod, and extend from the guide sliding hole to the tail rod; the two guide lock rods are respectively inserted into the two lock rod holes, and the front end parts of the two guide lock rods are respectively fixed on the rear side surfaces of the two guide sliding blocks; the two percussion pressure springs are respectively sleeved on the two guide lock rods, and the percussion pressure springs are elastically supported between the rear side surface of the guide sliding block and the rear end surface of the guide sliding hole; two strip-shaped guide holes which are respectively communicated with the two lock rod holes are arranged on the side edge of the tail end rod; the two guide lock rods are respectively provided with a side protruding strip extending out of the strip-shaped guide hole, and the extending ends of the side protruding strips are provided with poking protruding blocks.
Further, the two locking mechanisms comprise a locking rod, a locking pressure spring, a pry bar and a protective sleeve head; two side holes are formed in the tail end rod, two locking rods are respectively inserted into the two side holes, and an extrusion slope is arranged at the insertion end part of each locking rod; the rear end rod walls of the two guide lock rods are respectively provided with a locking hole; two hinged mounting seats are arranged on the tail end rod; the middle parts of the two prying bars are respectively and swingably hinged on the hinged mounting seat, and the front end parts of the two prying bars are respectively provided with a waist-shaped hole; the two protective sleeves are respectively sleeved on the rear ends of the two pry bars; the outer end parts of the two locking rods are respectively hinged on the waist-shaped holes of the two prying bars through two pin shafts; limiting convex rings for limiting the depth of the insertion side holes are arranged on the two locking rods; the locking pressure spring is elastically supported between the rear end of the pry bar and the tail end bar and is used for pushing the end part of the locking bar to be inserted into the locking hole.
Further, the transmission structure comprises a transmission rod, a sliding seat and an inclined push rod; a strip-shaped notch is arranged on the main rod and positioned at the rear side edge of the section; the rear end of the clamping rod is provided with a hinged raised line in a backward extending mode, the rear side face of the hinged raised line is provided with an inclined slope, and a T-shaped chute is arranged on the inclined slope; the hinged convex strips are embedded into the strip-shaped notch and are hinged on the strip-shaped notch through a hinged short shaft swing type arranged on the side edge; the transmission rod penetrates through the main rod and the tail rod from the strip-shaped notch; the front end of the transmission rod is obliquely provided with a push-pull convex strip extending into the T-shaped chute, and the extending end part of the push-pull convex strip is provided with a short cylinder which is slidably embedded into the T-shaped chute; a push-pull T-shaped groove is axially formed in the handle fixing rod, and a T-shaped sliding block is slidably arranged in the push-pull T-shaped groove; the sliding seat is fixedly arranged on the T-shaped sliding block; a push-pull inclined rod is arranged at the rear end of the transmission rod in an extending way, and the rear end part of the push-pull inclined rod is fixedly arranged on the sliding seat; one end of the inclined push rod is hinged on the sliding seat in a swinging way, and the other end of the inclined push rod is hinged on the rear end of the pressing rod in a swinging way.
Further, guide strip-shaped grooves are formed in the edges of the length side grooves on the two sides of the strip-shaped groove, and the guide strip-shaped grooves are parallel to the axial direction of the transmission rod; two protruding shafts are arranged on the side edges of the front end part of the transmission rod, and the end parts of the two protruding shafts are respectively and slidably embedded into the guide strip-shaped grooves on the two sides.
Further, rubber extrusion strips for extruding the nail bin are arranged on the two side length side groove edges of the nail bin groove.
Further, the front end surfaces of the main rod and the clamping rod are both provided with arc-shaped slope surfaces.
Compared with the prior art, the invention has the beneficial effects that: the two cutting nail pushing heads are respectively and laterally selected to be cut and sutured by utilizing the two firing mechanisms, so that the firing is selected according to the side edge of the tissue to be cut, the tissue cutting and suturing can be completed once after the firing, and the use is flexible and convenient; the rod-shaped structures such as the main rod and the clamping rod are utilized to meet the use requirement of small space in the minimally invasive surgery; the butterfly nut can be used for locking after clamping tissues, and simultaneously, the clamping locking is released rapidly after being released under the action of the rebound pressure spring.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the structure of the present invention;
FIG. 3 is a schematic view of two cutting push heads and a cartridge according to the present invention;
fig. 4 is a schematic view of the rear end structure of the clamping rod according to the present invention.
Detailed Description
The following describes the inventive technical scheme in detail with reference to the accompanying drawings, but the inventive scope of protection is not limited to the embodiments.
Example 1:
as shown in fig. 1 to 4, the cutting stapler for minimally invasive surgery according to the present invention includes: the main rod 1, the tail rod 4, the handle fixing rod 5, the pressing rod 6 and the clamping rod 3;
the front side edge of the main rod 1 is provided with a tangential plane 2, and the tangential plane 2 is parallel to the axial direction of the main rod 1; the clamping rod 3 is hinged at the section 2 in a swinging way and is used for pressing on the section 2 after the clamping rod 3 swings; a nail bin groove 32 for placing a nail bin 53 is axially arranged on the section 2 along the main rod 1; two cutting push heads are arranged side by side in the nail bin groove 32; two firing mechanisms for cutting and pushing the nail heads are arranged in the main rod 1; the tail end rod 4 is fixedly arranged at the tail end of the main rod 1, and two locking mechanisms for locking the two firing mechanisms are arranged on the tail end rod 4 respectively;
the handle fixing rod 5 is fixedly arranged on the rear end surface of the tail end rod 4, and the handle fixing rod 5 is axially parallel to the main rod 1; a rear end hinge notch 49 is arranged on the rear end surface of the tail end rod 4, and the pressing rod 6 is arranged on the rear end hinge notch 49 in a swinging type; a guide rod 7 is hinged at the tail end of the pressing rod 6 in a swinging manner; the tail end of the handle fixing rod 5 is provided with a guide rod hole; the end part of the guide rod 7 penetrates through the guide rod hole, an external thread 10 is arranged on the penetrating end part, and a butterfly nut 9 is screwed on the external thread 10; a rebound pressure spring 8 is sleeved on the guide rod 7, and the rebound pressure spring 8 is elastically supported between the handle fixing rod 5 and the pressing rod 6; the clamping rod 3 is driven to swing through the transmission structure after the pressing rod 6 swings.
The two cutting nail pushing heads are respectively and laterally selected to be cut and sutured by utilizing the two firing mechanisms, so that the firing is selected according to the side edge of the tissue to be cut, the tissue cutting and suturing can be completed once after the firing, and the use is flexible and convenient; the rod-shaped structures such as the main rod 1 and the clamping rod 3 are utilized to meet the use requirement of small space in the minimally invasive surgery; the wing nut 9 can be used for locking after clamping tissues, and simultaneously, the clamping locking is released rapidly after being released under the action of the rebound compression spring 8.
Further, the cutting and pushing head is integrally formed by a pushing support plate 27, a bottom connecting plate 52 and a cutting blade 25; the nail pushing supporting plate 27 is parallel to the cutting blade 25, and the bottom connecting plate 52 is connected and arranged between the nail pushing supporting plate 27 and the lower side edge of the cutting blade 25; an arc-shaped cutting edge 26 which is concave in an arc shape is arranged on the front side edge of the cutting blade 25; the inner side surface of the clamping rod 3 is provided with a blade groove 29, and the upper side edge of the cutting blade 25 is embedded into the blade groove 29 after the clamping rod 3 is pressed; when the two cutting push heads are arranged side by side, the two cutting blades 25 are positioned adjacent to each other and between the two push support plates 27. The bottom connecting plate 52 can be used for realizing stable connection of the nail pushing supporting plate 27 and the cutting blade 25; the use of the arcuate edge 26 with the arcuate recess facilitates rapid cutting of clamped tissue and the use of the blade slot 29 enhances the stability of the cutting blade 25 during cutting.
Further, a support slope surface 28 is provided on the front side of the staple supporting plate 27. The titanium nails in the nail bin 53 can be gradually supported and pressed upwards during firing by the supporting slope surface 28.
Further, a strip-shaped pressing groove is formed in the length edges of the two sides of the side edge of the tangent plane 2, and an anti-slip rubber strip 24 is arranged on the clamping rod 3 and at the position opposite to the strip-shaped pressing groove. The cooperation of the strip-shaped pressing groove and the anti-slip rubber strip 24 can play an anti-slip role in clamping tissues, so that the tissues are cut, positioned and prepared.
Further, the two firing mechanisms comprise a firing bar 40, a guide lock bar 45, a guide slide block 42 and a firing pressure spring 43; two guide sliding holes 41 are axially arranged in the main rod 1; two guide sliders 42 are slidably mounted in the two guide slider holes 41, respectively; the rear ends of the two firing bars 40 penetrate through the nail bin grooves 32 and extend into the two guide sliding holes 41, and are respectively fixed on the front side surfaces of the two guide sliding blocks 42; the front ends of the two firing bars 40 are respectively fixed on the two cutting nail pushing heads; two lock lever holes 44 are axially arranged at the rear end of the main lever 1, and the lock lever holes 44 extend from the guide sliding holes 41 to the tail lever 4; the two guide lock rods 45 are respectively inserted into the two lock rod holes 44, and the front end parts of the two guide lock rods 45 are respectively fixed on the rear side surfaces of the two guide sliding blocks 42; the two firing pressure springs 43 are respectively sleeved on the two guide lock rods 45, and the firing pressure springs 43 are elastically supported between the rear side surface of the guide sliding block 42 and the rear end surface of the guide sliding hole 41; two strip-shaped guide holes 11 which are respectively communicated with the two lock rod holes 44 are arranged on the side edge of the tail end rod 4; the two guide lock rods 45 are respectively provided with a side protruding strip 47 extending out of the strip-shaped guide hole 11, and the extending ends of the side protruding strips 47 are provided with poking protruding blocks 13. The rotation limit of the guide lock rod 45 can be realized by utilizing the cooperation of the side raised strips 47 and the strip-shaped guide holes 11, and the guide lock rod 45 can be shifted backwards to return by shifting the convex blocks 13; the use of the guide sled 42 ensures that the firing bar 40 has better stability during the forward firing movement.
Further, both locking mechanisms comprise a locking lever 22, a locking compression spring 20, a pry bar 19 and a protective sleeve head 18; two side holes are formed in the tail end rod 4, two locking rods 22 are respectively inserted into the two side holes, and an extrusion slope 48 is arranged at the insertion end part of each locking rod 22; a locking hole 46 is arranged on the rear end rod wall of each guide locking rod 45; two hinged mounting seats 21 are arranged on the tail end rod 4; the middle parts of the two prying bars 19 are respectively and swingably hinged on the hinged mounting seat 21, and the front end parts of the two prying bars 19 are respectively provided with a waist-shaped hole; the two protective sleeves 18 are respectively sleeved on the rear ends of the two pry bars 19; the outer ends of the two locking rods 22 are respectively hinged on the waist-shaped holes of the two prying bars 19 through two pin shafts; the two locking rods 22 are provided with limiting convex rings 12 for limiting the depth of the side hole; the locking compression spring 20 is elastically supported between the rear end of the pry bar 19 and the trailing end bar 4 for pushing the end of the locking bar 22 into the locking hole 46. The rear end of the pry bar 19 can be supported by the protective sleeve head 18, so that the pry bar 19 is prevented from being pressed by mistake in use; after the guide lock rod 45 is reset, the end part of the lock rod 22 can be quickly pushed to be inserted into the lock hole 46 by using the lock pressure spring 20 to realize locking; the limit convex ring 12 can limit the insertion setting of the locking rod 22, so that the locking rod 22 is prevented from being inserted too deeply to block the guide locking rod 45 from moving backwards for homing; the pressing slope 48 can be used for touching and pressing the rear end part of the guide lock rod 45 when the guide lock rod 45 moves backwards to return, so that the locking rod 22 is reversely pressed to move outwards, and the end part of the locking rod 22 is quickly inserted into the locking hole 46 to realize locking under the action of the locking pressure spring 20 after the guide lock rod 45 moves backwards to return.
Further, the transmission structure comprises a transmission rod 14, a sliding seat 17 and an inclined push rod 16; a strip-shaped notch 35 is arranged on the main rod 1 and positioned at the rear side edge of the section 2; a hinge convex strip 33 is arranged at the rear end of the clamping rod 3 in a backward extending way, the rear side surface of the hinge convex strip 33 is provided with an inclined slope surface, and a T-shaped chute 34 is arranged on the inclined slope surface; the hinge convex strips 33 are embedded into the strip-shaped notch 35 and are installed on the strip-shaped notch 35 in a swinging mode through hinge short shafts 23 arranged on the side edges; the transmission rod 14 penetrates through the main rod 1 and the tail rod 4 from the strip-shaped notch 35; push-pull raised strips 38 extending into the T-shaped sliding grooves 34 are obliquely arranged at the front ends of the transmission rods 14, and short cylinders 39 which are slidably embedded into the T-shaped sliding grooves 34 are arranged at the extending ends of the push-pull raised strips 38; a push-pull T-shaped groove 50 is axially arranged on the handle fixing rod 5, and a T-shaped sliding block 51 is slidably arranged in the push-pull T-shaped groove 50; the sliding seat 17 is fixedly arranged on the T-shaped sliding block 51; a push-pull inclined rod 15 is arranged at the rear end of the transmission rod 14 in an extending manner, and the rear end part of the push-pull inclined rod 15 is fixedly arranged on a sliding seat 17; one end of the inclined push rod 16 is hinged on the sliding seat 17 in a swinging manner, and the other end of the inclined push rod 16 is hinged on the rear end of the pressing rod 6 in a swinging manner. The rear end of the transmission rod 14 can be stably pushed and pulled by the push-pull inclined rod 15 through the sliding seat 17; by providing the T-shaped chute 34 on the inclined slope, the hinge convex strip 33 is pressed when the push-pull convex strip 38 moves forward and backward, and the pressing and tilting driving of the clamping rod 3 are realized.
Further, guide bar grooves 37 are formed on the side edges of the length of the bar-shaped notch 35, and the guide bar grooves 37 are parallel to the axial direction of the transmission rod 14; two protruding shafts 36 are arranged on the side edges of the front end part of the transmission rod 14, and the end parts of the two protruding shafts 36 are respectively and slidably embedded into guide strip-shaped grooves 37 on two sides. The front end of the transmission rod 14 can be supported by the cooperation of the guide bar groove 37 and the protruding shaft 36, and bending of the front end of the transmission rod 14 when the hinge convex strip 33 is pulled or pushed is prevented.
Further, rubber pressing strips 31 for pressing the staple cartridge 53 are provided on both side length side groove edges of the staple cartridge groove 32. The staple cartridge 53 is extruded by the rubber extrusion strip 31, so that the staple cartridge 53 is relatively stable in the staple cartridge slot 32.
Further, the front end surfaces of the main rod 1 and the clamping rod 3 are both provided with arc-shaped slope surfaces 30. The use of the arcuate ramp 30 can facilitate insertion of the forward end of the cutting stapler into the minimally invasive aperture.
When the cutting stitching instrument suitable for minimally invasive surgery is used, the nail bin 53 is pressed into the nail bin groove 32, the used nail bin 53 is an existing nail bin, the rubber extrusion strips 31 on two sides clamp and fix the nail bin 53, the cutting blades 25 for cutting and pushing the nail head are positioned in the cutting blade notch in the middle of the nail bin 53, and the nail pushing supporting plates 27 for cutting and pushing the nail head are respectively embedded into the nail pushing grooves on two sides of the nail bin 53; when the minimally invasive hole is inserted to cut tissues, the clamping rod 3 is pressed on the section 2 by pressing the pressing rod 6, so that the minimally invasive hole is convenient to insert; when clamping tissue to be cut, firstly, the pressing rod 6 is loosened, the pressing rod 6 is sprung by the rebound pressure spring 8, the transmission structure pulls the hinged raised strips 33, so that the clamping rod 3 is tilted, a clamping included angle is opened, the tissue to be cut is conveniently clamped, the pressing rod 6 is pressed, the transmission structure pushes the hinged raised strips 33, so that the clamping rod 3 is pressed on the section 2, and the clamping of the pressing rod 6 is locked by the butterfly nut 9; then according to the side edge of the clamped tissue, selecting which side of the clamped tissue is started, for example, the tissue to be cut is positioned on the right side, starting the right side of the firing mechanism, pulling out the right side protective sleeve head 18, pressing the pry bar 19 to enable the locking bar 22 to pull out the locking hole 46, pushing the right side guide sliding block 42, the right side firing bar 40 and the right side cutting pushing nail head to move forwards by the firing pressure spring 43, cutting and separating the clamped tissue by the cutting blade 25, pushing and pressing the right side titanium nail in the nail bin 53 by the nail pushing supporting plate 27 and the supporting slope surface 28, extruding with the upper side clamping bar 3 to fasten the titanium nail, and performing unilateral linear stitching on the tissue cutting position; after suturing, the pressing rod 6 is loosened, so that the clamped tissue is loosened by the clamping rod 3, and the main rod 1 is pulled out from the minimally invasive hole by pressing the pressing rod 6.
As described above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A cutting stapler suitable for minimally invasive surgery, characterized in that: comprises a main rod (1), a tail rod (4), a handle fixing rod (5), a pressing rod (6) and a clamping rod (3);
a tangential plane (2) is arranged on the side edge of the front end of the main rod (1), and the tangential plane (2) is parallel to the axial direction of the main rod (1); the clamping rod (3) is hinged at the section (2) in a swinging way and is used for pressing on the section (2) after the clamping rod (3) swings; a nail bin groove (32) for placing a nail bin (53) is axially arranged on the tangential plane (2) along the main rod (1); two cutting push heads are arranged in parallel in the nail bin groove (32); two firing mechanisms for cutting the push heads are arranged in the main rod (1); the tail end rod (4) is fixedly arranged at the tail end of the main rod (1), and two locking mechanisms for locking the two firing mechanisms are arranged on the tail end rod (4); the handle fixing rod (5) is fixedly arranged on the rear end face of the tail end rod (4), and the handle fixing rod (5) is axially parallel to the main rod (1); the rear end face of the tail end rod (4) is provided with a rear end hinge notch (49), and the pressing rod (6) is arranged on the rear end hinge notch (49) in a swinging mode; a guide rod (7) is hinged at the tail end of the pressing rod (6) in a swinging way; the tail end of the handle fixing rod (5) is provided with a guide rod hole; the end part of the guide rod (7) penetrates through the guide rod hole, an external thread (10) is arranged on the penetrating end part, and a butterfly nut (9) is screwed on the external thread (10); a rebound pressure spring (8) is sleeved on the guide rod (7), and the rebound pressure spring (8) is elastically supported between the handle fixing rod (5) and the pressing rod (6); the clamping rod (3) is driven to swing through the transmission structure after the pressing rod (6) swings;
the cutting nail pushing head is integrally formed by a nail pushing supporting plate (27), a bottom connecting plate (52) and a cutting blade (25); the nail pushing support plate (27) is parallel to the cutting blade (25), and the bottom connecting plate (52) is connected between the nail pushing support plate (27) and the lower side edge of the cutting blade (25); an arc-shaped cutting edge (26) which is concave in an arc shape is arranged on the front side edge of the cutting blade (25); the inner side surface of the clamping rod (3) is provided with a blade groove (29), and the upper side edge of the cutting blade (25) is embedded into the blade groove (29) after the clamping rod (3) is pressed; when the two cutting push heads are arranged side by side, the two cutting blades (25) are close to each other and are positioned between the two push pin supporting plates (27);
the two firing mechanisms comprise a firing bar (40), a guide lock rod (45), a guide slide block (42) and a firing pressure spring (43); two guide sliding holes (41) are axially formed in the main rod (1); the two guide sliding blocks (42) are respectively and slidably arranged in the two guide sliding holes (41); the rear ends of the two firing bars (40) penetrate through the nail bin grooves (32) and extend into the two guide sliding holes (41) and are respectively fixed on the front side surfaces of the two guide sliding blocks (42); the front ends of the two firing bars (40) are respectively fixed on the two cutting nail pushing heads; two lock rod holes (44) are axially arranged at the rear end of the main rod (1), and the lock rod holes (44) extend from the guide sliding holes (41) to the tail rod (4); the two guide lock rods (45) are respectively inserted into the two lock rod holes (44), and the front ends of the two guide lock rods (45) are respectively fixed on the rear side surfaces of the two guide sliding blocks (42); the two firing pressure springs (43) are respectively sleeved on the two guide lock rods (45), and the firing pressure springs (43) are elastically supported between the rear side surface of the guide sliding block (42) and the rear end surface of the guide sliding hole (41); two strip-shaped guide holes (11) which are respectively communicated with the two lock rod holes (44) are arranged on the side edge of the tail end rod (4); a side raised line (47) extending out of the strip-shaped guide hole (11) is arranged on each of the two guide lock rods (45), and a poking lug (13) is arranged at the extending end of the side raised line (47);
the two locking mechanisms comprise a locking rod (22), a locking pressure spring (20), a pry bar (19) and a protective sleeve head (18); two side holes are formed in the tail end rod (4), two locking rods (22) are respectively inserted into the two side holes, and an extrusion slope (48) is arranged at the insertion end part of each locking rod (22); the rear end rod walls of the two guide lock rods (45) are respectively provided with a locking hole (46); two hinged mounting seats (21) are arranged on the tail end rod (4); the middle parts of the two prying bars (19) are respectively and swingably hinged on a hinged mounting seat (21), and a waist-shaped hole is formed in the front end parts of the two prying bars (19); the two protective sleeves (18) are respectively sleeved on the rear ends of the two pry bars (19); the outer ends of the two locking rods (22) are respectively hinged on the waist-shaped holes of the two prying bars (19) through two pin shafts; limiting convex rings (12) for limiting the depth of the insertion side holes are arranged on the two locking rods (22); the locking pressure spring (20) is elastically supported between the rear end of the pry bar (19) and the tail end bar (4) and is used for pushing the end part of the locking bar (22) to be inserted into the locking hole (46);
the transmission structure comprises a transmission rod (14), a sliding seat (17) and an inclined push rod (16); a strip-shaped notch (35) is arranged on the main rod (1) and positioned at the rear side edge of the section (2); a hinging raised line (33) is arranged at the rear end of the clamping rod (3) in a backward extending way, the rear side surface of the hinging raised line (33) is provided with an inclined slope surface, and a T-shaped chute (34) is arranged on the inclined slope surface; the hinge convex strips (33) are embedded into the strip-shaped notch (35) and are arranged on the strip-shaped notch (35) in a swinging mode through hinge short shafts (23) arranged on the side edges; the transmission rod (14) penetrates through the main rod (1) and the tail end rod (4) from the strip-shaped notch (35); push-pull raised strips (38) extending into the T-shaped sliding grooves (34) are obliquely arranged at the front ends of the transmission rods (14), and short cylinders (39) which are slidably embedded into the T-shaped sliding grooves (34) are arranged at the extending ends of the push-pull raised strips (38); a push-pull T-shaped groove (50) is axially arranged on the handle fixing rod (5), and a T-shaped sliding block (51) is slidably arranged in the push-pull T-shaped groove (50); the sliding seat (17) is fixedly arranged on the T-shaped sliding block (51); a push-pull inclined rod (15) is arranged at the rear end of the transmission rod (14) in an extending way, and the rear end part of the push-pull inclined rod (15) is fixedly arranged on a sliding seat (17); one end of the inclined push rod (16) is hinged on the sliding seat (17) in a swinging mode, and the other end of the inclined push rod (16) is hinged on the rear end of the pressing rod (6) in a swinging mode.
2. The cutting stapler adapted for minimally invasive surgery of claim 1, wherein: the front side of the nail pushing supporting plate (27) is provided with a supporting slope surface (28).
3. The cutting stapler adapted for minimally invasive surgery of claim 1, wherein: the two side edges of the cutting surface (2) are provided with a strip-shaped pressing groove, and the clamping rod (3) and the opposite position of the strip-shaped pressing groove are provided with an anti-slip rubber strip (24).
4. The cutting stapler adapted for minimally invasive surgery of claim 1, wherein: guide strip grooves (37) are formed in the edges of the length side grooves on the two sides of the strip-shaped groove opening (35), and the guide strip grooves (37) are parallel to the axial direction of the transmission rod (14); two protruding shafts (36) are arranged on the side edges of the front end parts of the transmission rods (14), and the end parts of the two protruding shafts (36) are respectively and slidably embedded into guide strip-shaped grooves (37) on two sides.
5. The cutting stapler adapted for minimally invasive surgery of claim 1, wherein: rubber extrusion strips (31) for extruding the nail bin (53) are arranged on the side slot edges of the length of the two sides of the nail bin slot (32).
6. The cutting stapler adapted for minimally invasive surgery of claim 1, wherein: the front end surfaces of the main rod (1) and the clamping rod (3) are both provided with arc slope surfaces (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911069539.1A CN110664449B (en) | 2019-11-05 | 2019-11-05 | Cutting stitching instrument suitable for minimally invasive surgery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911069539.1A CN110664449B (en) | 2019-11-05 | 2019-11-05 | Cutting stitching instrument suitable for minimally invasive surgery |
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| Publication Number | Publication Date |
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| CN110664449A CN110664449A (en) | 2020-01-10 |
| CN110664449B true CN110664449B (en) | 2023-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911069539.1A Active CN110664449B (en) | 2019-11-05 | 2019-11-05 | Cutting stitching instrument suitable for minimally invasive surgery |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113133794B (en) * | 2021-05-13 | 2022-05-24 | 苏州优脉瑞医疗科技有限公司 | Disposable linear anastomat for intestinal tract tail end |
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| CN110664449A (en) | 2020-01-10 |
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