CN112971881A - Joint mirror lower meniscus anterior angle sewing gun - Google Patents
Joint mirror lower meniscus anterior angle sewing gun Download PDFInfo
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- CN112971881A CN112971881A CN202110139932.4A CN202110139932A CN112971881A CN 112971881 A CN112971881 A CN 112971881A CN 202110139932 A CN202110139932 A CN 202110139932A CN 112971881 A CN112971881 A CN 112971881A
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- gun
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- gun handle
- groove
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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
- A61B17/0469—Suturing instruments for use in minimally invasive surgery, e.g. endoscopic 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
- A61B17/04—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
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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
- A61B17/0491—Sewing machines for 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
- A61B17/04—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
Abstract
The invention relates to a meniscus anterior angle suture gun under arthroscope, which comprises a front gun handle, a rear gun handle, a back-and-forth driving mechanism, a duckbill clip, a gun rod assembly and a needle core, wherein the duckbill clip comprises an upper clamping plate and a lower clamping plate; the back and forth driving mechanism comprises a handle and a connecting rod; the gun rod assembly comprises a fixed rod; the fixed rod is provided with a puncture needle channel and a connecting rod channel which are parallel to each other and are respectively used for penetrating the needle core and the connecting rod; the connection mode of the upper clamp plate, the lower clamp plate and the head of the connecting rod is as follows: the head of the connecting rod is connected with the upper clamping plate; the crescent boss of the upper clamping plate is embedded into the crescent groove of the lower clamping plate to realize movable connection, and the free end of the upper clamping plate faces the tail part of the connecting rod; the handle is connected with the front gun handle; the handle is connected with the connecting rod. The suture gun can realize that the anterior angle of the meniscus is reversely clamped by passing through the front approach of the meniscus under the arthroscope; the gun handle is utilized to drive the needle core to penetrate through the needle and thread for suturing, the operation is simple, convenient and safe, the extra operation risk caused by manual operation factors is reduced, and the suturing efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and relates to an arthroscopic anterior angle suture gun for meniscus.
Background
Due to the limitation of the access of the knee arthroscopic surgery, the access of the knee arthroscopic surgery is the front access, namely, the instruments are inserted into the human body from the front of the human body. As shown in fig. 1, the duckbill clip of the suturing gun in the prior art is positively occluded, since the instrument needs to be inserted into the human body from the front of the human body (front approach) and since the section of the meniscus is in a wedge structure (middle thin, outer edge thick), the suturing gun in the prior art is inserted from the front approach, then, the lower splint is inserted into the lower part of the meniscus, the upper splint is located above the meniscus, so that only the back corner of the meniscus (body part close to the back corner) can be clamped, and the front corner of the meniscus cannot be clamped. The concrete process is as shown in (a) and (b) in fig. 2, through anticlockwise pressing the handle, the connecting rod hinged with the handle moves towards the direction close to the rear gun handle under the driving of the handle, the other end of the connecting rod is connected with the upper clamping plate through a pin, and the upper clamping plate rotates anticlockwise around a crescent shape, so that the closing function is realized. On the contrary, the upper splint rotates clockwise around the crescent according to the direction shown in figure 2, so as to realize the opening function.
At present, aiming at the suture of the anterior horn of the meniscus, an external and internal suture method is mainly used, the method has complex operation steps, and after the suture is sutured, a suture knot is positioned on a knee joint capsule, so that the placement position of the suture is difficult.
The invention provides a full meniscal anterior horn suture technology, which has the advantages of small wound, simple operation, easy suture placement, quick postoperative recovery and the like, and a suture knot is positioned in a joint cavity after suture.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an arthroscopic anterior angle suture gun for meniscus;
in order to achieve the purpose, the invention adopts the following scheme:
a front angle suturing gun for a meniscus under an arthroscope comprises a front gun handle, a rear gun handle, a back-and-forth driving mechanism, a duckbill clip, a gun rod assembly and a needle core, wherein the duckbill clip is positioned on one side of the front gun handle, which is far away from the rear gun handle, and is used for clamping a tissue to be sutured, and the duckbill clip comprises an upper clamping plate and a lower clamping plate; the back and forth driving mechanism comprises a handle and a connecting rod; the head of the connecting rod is provided with a hole A, and the tail of the connecting rod is provided with an inverted U-shaped notch x; the reciprocating motion driving mechanism is used for driving the connecting rod to reciprocate along the length direction of the connecting rod and driving the upper clamping plate to move close to or far away from the lower clamping plate;
the gun rod assembly comprises a fixed rod; the fixed rod is provided with a puncture needle channel and a connecting rod channel which are parallel to each other and are respectively used for penetrating the needle core and the connecting rod; the needle core comprises a puncture needle;
one end of the upper clamping plate is provided with a U-shaped notch y, the outer sides of the U-shaped notches y of the upper clamping plate are provided with crescent bosses, and holes B are formed below the crescent bosses; one end of the lower clamping plate is fixedly connected with one end of the fixing rod and can be an integrally formed part, the other end of the lower clamping plate is provided with a rectangular through groove a, and two side walls of the rectangular through groove a are oppositely provided with crescent grooves; the concave surface of the crescent groove faces the upper clamping plate direction;
the connection mode of the upper clamp plate, the lower clamp plate and the head of the connecting rod is as follows: the head of the connecting rod passes through the U-shaped notch y of the upper clamping plate, and a pin V is adopted to pass through the hole B and the hole A to connect the head of the connecting rod and the upper clamping plate; the crescent boss of the upper clamping plate is embedded into the crescent groove of the lower clamping plate to realize movable connection, and the free end of the upper clamping plate faces the tail part of the connecting rod; the connecting rod moves forwards, the two-crescent boss of the upper clamping plate moves in the crescent groove through the pin V, and the upper clamping plate and the lower clamping plate are closed; otherwise, the device is opened.
One end of the handle is provided with a U-shaped notch z, the outer side wall of the U-shaped notch z is provided with a hole C and a hole D, and the hole C is positioned above the hole D; the handle is connected with the front gun handle through a hole D by a pin IV;
the connecting mode of the handle and the tail part of the connecting rod is as follows: the handle passes through hole C through the pin VI and is connected with the U-shaped breach x on the connecting rod, and the U-shaped breach z of handle is inserted to the U-shaped breach x of connecting rod (the U-shaped breach z of handle is connected with the U-shaped breach x of connecting rod, interferes with the handle when preventing the connecting rod seesaw).
As a preferred technical scheme:
according to the arthroscope anterior angle suture gun for the meniscus, the puncture needle through hole E for the puncture needle to penetrate through is formed in the upper clamping plate.
According to the arthroscope anterior angle suture gun for the meniscus, a perforated stepped groove is formed between the rectangular through groove a on the lower splint and the puncture needle channel, the big head of the stepped groove is used for penetrating a suture, and the suture is pulled towards the direction of the small head of the stepped groove after the suture penetrates through the stepped groove, so that the suture is loaded on the device.
According to the arthroscope lower meniscus anterior angle suture gun, the puncture needle through hole E is formed by the upper clamping plate, the pin VII, the torsion spring and the reset baffle;
the method specifically comprises the following steps: the head end of the upper clamping plate is provided with a rectangular through groove b, and two side surfaces of the rectangular through groove b are respectively provided with a through hole F and a through hole F' which are opposite; one side of the rectangular through groove b on the upper clamping plate extends to the direction of the tail end of the upper clamping plate to form an inclined U-shaped groove 1; one end of the reset baffle is provided with sawteeth, the other end of the reset baffle is provided with a U-shaped notch w, and the wall of the U-shaped notch w is provided with an inclined U-shaped groove 2; a puncture needle through hole E is formed between the rectangular through groove b and the sawteeth, and two side surfaces of the reset baffle are provided with a through hole G and a through hole G' which are opposite;
the reset baffle is arranged in the rectangular through groove b, a torsion spring is arranged between the rectangular through groove b and an opening of the U-shaped notch w of the reset baffle, one end of the torsion spring is lapped in the oblique U-shaped groove 1 on the upper clamping plate, and the other end of the torsion spring is lapped in the oblique U-shaped groove 2 on the reset baffle; the pin VII is inserted into the through hole F, the through hole G, the torsion spring, the through hole G 'and the through hole F' in sequence. The reset baffle can rotate around the pin VII under the action of external force, and the external force disappears and resets under the action of the torsion spring.
According to the arthroscope lower meniscus anterior angle suture gun, the front gun handle is in a straight-line flat plate shape, the rear gun handle is in an L-shaped flat plate shape, and the front gun handle and the rear gun handle are partially overlapped and then connected into a U-shaped plate shape through the pin II. Pin II has realized the swing joint of preceding stock and back stock. Under the holding action, the rear gun handle can move towards the direction close to the front gun handle, so that the needle seat and the puncture needle connected with the needle seat are driven to move forwards, the connecting structure of the front gun handle and the rear gun handle is not limited to the above structure, and the rear gun handle can move relative to the front gun handle as long as the movable connection of the front gun handle and the rear gun handle is ensured;
the front pistol handle and the rear pistol handle are movably connected into a handle structure of the pistol, and a moving guide mechanism and an elastic reset mechanism are arranged between the front pistol handle and the rear pistol handle. The movable guide mechanism is used for guiding the rear gun handle to move towards the direction close to the front gun handle when holding force is applied, and the elastic reset mechanism is used for driving the rear gun handle to reset when the holding force is released.
As above a rifle is sewed up to meniscus anterior angle under arthroscope, remove guiding mechanism and comprise stock limiting plate and inserted column, the stock limiting plate is platelike structure, one end passes through pin III with the back stock and is connected, is equipped with the bar hole on the other end, the inserted column is fixed on the preceding stock, and inserts in the bar hole. The structure of the movement guide mechanism is not limited to this, and any structure that can exert the action of "guiding the rear grip to move in the direction approaching the front grip when the grip force is applied" can be applied to the present invention.
The elastic reset mechanism consists of a gun handle spring and a gun handle spring guide post, wherein a front guide hole and a rear guide hole which are opposite to each other are respectively arranged in the front gun handle and the rear gun handle; the gun handle limiting plate is closer to the U-shaped opening relative to the gun handle spring. The structure of the elastic reset mechanism is not limited to this, and any structure that can exert the function of "driving the rear pistol grip to reset when releasing the holding force" can be applied to the present invention.
The spring guide post of the gun handle is a cylinder, and the front guide hole and the rear guide hole are cylindrical holes. The cylindrical structure is simple and easy to process, so as to be an optimal structure, the shapes of the front guide hole, the rear guide hole and the gun handle spring guide post are not limited to be cylindrical, and the front guide hole, the rear guide hole and the gun handle spring guide post can be matched with the gun handle spring to play a role of driving the rear gun handle to reset when the holding force is released.
According to the arthroscope lower meniscus anterior angle suture gun, the needle core mainly comprises the needle seat, the needle rod and the puncture needle which are sequentially connected, the needle seat is connected with the rear gun handle, and the puncture needle is positioned on one side of the front gun handle, which is far away from the rear gun handle. The device has the advantages of convenient operation, safety, simplicity, low price and high suturing efficiency.
According to the arthroscope lower meniscus anterior angle suture gun, one end, positioned at the U-shaped opening, of the front gun handle extends towards the direction far away from the rear gun handle to form an extension plate, a transverse channel and a longitudinal channel which are mutually communicated are arranged in the extension plate, and a needle core penetrates through the transverse channel;
the needle seat is connected with the rear gun handle through a pin I; the pin I is fixed on the rear gun handle, and after the needle core is installed, the tail part of the needle seat is clamped by the pin I and drives the needle core to move back and forth.
According to the arthroscope anterior angle suture gun for the meniscus, the handle is in an inverted P-shaped plate shape and is formed by connecting adjacent strip-shaped sections and ring-shaped sections;
the connection of the front pistol grip through the U-shaped notch z means that: the opening of the U-shaped notch faces to the direction far away from the pin IV; the straight line section of the ring-shaped section is closer to the front gun handle relative to the curve section of the ring-shaped section, and the strip-shaped section penetrates into the longitudinal channel; the strip section is located in the part of the longitudinal channel, and the position farthest away from the ring-shaped section is connected with the front gun handle through a pin IV.
According to the arthroscope lower meniscus anterior angle suturing gun, the gun rod assembly further comprises a cover plate, a U-shaped groove 3 is designed at the head end of the cover plate, and the shape of the U-shaped groove 3 is matched with the stepped groove in the fixing rod;
the cover plate is arranged in the fixed rod, the cover plate covers the puncture needle channel of the fixed rod, and the cover plate and the fixed rod are fixedly connected (the seam between the cover plate and the fixed rod is welded);
the fixing rod and the cover plate part penetrate into the transverse channel in the extension plate; the tail of the cover plate is provided with a semicircular hole and a rectangular groove, a pin VIII penetrates into the semicircular hole to connect the cover plate with the front gun handle, and a set screw is arranged in the rectangular groove to tightly press the cover plate and the front gun handle. (that is, the part of the gun rod assembly positioned in the transverse channel is fixedly connected with the front gun handle, the connection mode of the gun rod assembly and the front gun handle is not limited to the above, a set screw is commonly used, and the structure is simple, so that the set screw is adopted in the invention.)
The principle of the invention is as follows:
according to the invention, the handle rotates anticlockwise around the hole D, the pin IV is inserted into the hole C of the handle and the inverted U-shaped notch at the tail part of the connecting rod, the hole A at the head part of the connecting rod is connected with the hole B on the upper clamping plate through the pin V, the crescent bosses are arranged on two sides of the upper clamping plate and are inserted into the crescent grooves of the lower clamping plate, and the upper clamping plate can rotate around the crescent grooves of the lower clamping plate;
through anticlockwise pressing handle, the handle is around hole D anticlockwise rotation, and pin IV is moved by back handle near-end towards the distal end, drives the connecting rod and is moved by back handle near-end towards the distal end, and the connecting rod is by pushing forward the punch holder backward, and the punch holder is pressed clockwise around the crescent, and at this moment, the direction of punch holder is towards the connecting rod afterbody, realizes the closed function, realizes the meniscus anterior angle promptly and sews up. Otherwise, the upper splint rotates anticlockwise around the crescent groove to realize the opening function.
Advantageous effects
(1) According to the meniscus anterior angle suture gun under the arthroscope, the anterior angle of the meniscus can be clamped reversely through the anterior approach of the meniscus under the arthroscope by the mechanism of reverse occlusion of the head.
(2) According to the device for meniscus suture, the gun handle structure is utilized to drive the needle core to penetrate through the needle and thread for suture, the operation is simple, convenient and safe, and the operation time is greatly shortened;
(3) according to the meniscus suturing device, the action of firstly puncturing tissues and then threading the threads is omitted in the structural design, the tissues can be sutured after the needle core device is directly excited, the extra operation risk caused by manual operation factors is fully reduced, and the suturing efficiency is improved.
Drawings
FIG. 1 is a schematic view of a prior art device for meniscal suturing;
FIG. 2 is a schematic view showing the direction of movement of a prior art device for meniscal suturing;
FIG. 3 is a schematic view of the arthroscopic anterior meniscus sewing gun of the present invention;
FIG. 4 is a schematic view of an exploded configuration of the arthroscopic lower meniscus anterior horn suture gun of the present invention;
FIG. 5 is a schematic view of the upper splint of the arthroscopic lower meniscus anterior horn suture gun of the present invention;
FIG. 6 is a schematic view of the gun shaft assembly of the arthroscopic lower meniscus anterior horn suture gun of the present invention;
FIG. 7 is a schematic view of the connection of the upper plate and gun rod assembly of the arthroscopic lower meniscus anterior horn suture gun of the present invention;
FIG. 8 is a schematic view of the handle and its connection to the gun shaft assembly of the arthroscopic lower meniscus anterior horn suture gun of the present invention;
FIG. 9 is a schematic view of the orientation of the motion of the arthroscopic anterior meniscus suturing gun of the present invention;
wherein, 1-front gun handle, 2-back gun handle, 3-needle core, 3.1-needle seat, 3.2-needle bar, 3.3-puncture needle, 4-duckbill clip, 5-gun handle limit plate, 6-plunger, 7-strip hole, 8-gun handle spring, 9-gun handle spring guide post, 10-front guide hole, 11-back guide hole, 12-gun rod component, 13-connecting rod, 13.1-inverted U-shaped notch x, 13.2-hole A, 14-handle, 14.1-hole D, 14.2-hole C, 14.3-U-shaped notch z, 15-pin I, 16-pin II, 17-pin III, 18-pin IV, 19-upper clamp plate, 19.1-hole B, 19.2-crescent boss, 20-lower clamp plate, 20.1-rectangular through groove a, 20.2-fixed rod, 21-puncture needle channel, 22-puncture needle through hole E, 23-pin V, 24-crescent groove, 25-pin VI, 26-cover plate, 27-pin VII, 28-torsion spring, 29-reset baffle, 30-connecting rod channel, 31-step groove and 32-U-shaped groove 3.
Detailed Description
The invention will be further illustrated with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
An arthroscopic anterior meniscus suture gun, as shown in fig. 3-4, comprises a front gun handle 1, a rear gun handle 2, a back and forth driving mechanism, a duckbill clip 4, a gun rod component 12 and a needle core 3;
the front gun handle 1 is in a straight-line shape flat plate shape, the rear gun handle 2 is in an L-shape flat plate shape, and the front gun handle 1 and the rear gun handle 2 are partially overlapped and then connected into a U-shape flat plate shape through a pin II 16. Pin II16 enables the articulation of front pistol grip 1 and rear pistol grip 2. Under the holding action, the rear gun handle 2 can move towards the direction close to the front gun handle 1, and further drives the needle seat 3.1 of the needle core 3 and the puncture needle 3.3 connected with the needle seat 3.1 to move forwards; the front pistol grip 1 and the rear pistol grip 2 are movably connected to form a pistol grip structure, and a moving guide mechanism and an elastic reset mechanism are arranged between the two. The movable guide mechanism is used for guiding the rear gun handle 2 to move towards the direction close to the front gun handle 1 when holding force is applied, and the elastic reset mechanism is used for driving the rear gun handle 2 to reset when the holding force is released.
Remove guiding mechanism and constitute by stock limiting plate 5 and insert post 6, stock limiting plate 5 is platelike structure, and one end is connected through pin III17 with back stock 2, is equipped with bar hole 7 on the other end, and insert post 6 and fix in preceding stock 1, and insert in the bar hole 7. The elastic reset mechanism consists of a gun handle spring 8 and a gun handle spring guide post 9, a front guide hole 10 and a rear guide hole 11 which are opposite are respectively arranged in the front gun handle 1 and the rear gun handle 2, the gun handle spring 8 is sleeved on the gun handle spring guide post 9, one end of the gun handle spring 8 and one end of the gun handle spring guide post 9 are embedded into the front guide hole 10, and the other end of the gun handle spring 8 and the other end of the gun handle spring guide post 9 are embedded into the rear guide hole 11; the gun handle limiting plate 5 is closer to the U-shaped opening relative to the gun handle spring 8. The handle spring guide post 9 is a cylinder, and the front guide hole 10 and the rear guide hole 11 are cylindrical holes.
The back and forth driving mechanism comprises a handle 14 and a connecting rod 13; the head of the connecting rod 13 is provided with a hole A13.2, and the tail is provided with an inverted U-shaped gap x 13.1; the reciprocating motion driving mechanism is used for driving the connecting rod 13 to reciprocate along the length direction of the connecting rod, and driving the upper clamping plate 19 of the duckbilled clip 4 to move close to the lower clamping plate 20 of the duckbilled clip 4 or move away from the lower clamping plate 20 of the duckbilled clip 4;
the handle 14 is in a shape of an inverted P-shaped plate and is formed by connecting adjacent strip-shaped sections and ring-shaped sections; one end of the handle 14 is provided with a U-shaped notch z14.3, the outer side wall of the U-shaped notch z14.3 is provided with a hole C14.2 and a hole D14.1, and the hole C14.2 is positioned above the hole D14.1; the handle 14 is connected with the fore pistol grip 1 through a hole D14.1 by a pin IV 18; the opening of the U-shaped notch z faces away from the pin IV 18;
duckbill clip 4 is located on the side of front pistol grip 1 away from rear pistol grip 2 for gripping the tissue to be sutured, duckbill clip 4 comprising upper jaw 19 and lower jaw 20; one end of the upper clamping plate 19 is provided with a U-shaped notch y, the outer sides of the U-shaped notch y of the upper clamping plate 19 are provided with crescent bosses 19.2, and holes B19.1 are formed below the crescent bosses 19.2; one end of the lower clamping plate 20 is connected with one end of the fixing rod 20.2 and is an integrated piece, the other end of the lower clamping plate 20 is provided with a rectangular through groove a20.1, and two side walls of the rectangular through groove a20.1 are oppositely provided with crescent grooves 24; the concave surface of the crescent groove 24 faces the upper clamping plate 19;
as shown in fig. 5, a puncture needle through hole E22 for the puncture needle 3.3 to pass through is arranged in the upper splint 19; a perforated stepped groove 31 is arranged between the rectangular through groove a20.1 on the lower splint 20 and the puncture needle channel 21, the big head of the stepped groove is used for passing a suture, and after the suture passes through, the suture is pulled towards the direction of the small head of the stepped groove, so that the suture is loaded on the device. The puncture needle through hole E22 is formed by the upper clamping plate 19, the pin VII27, the torsion spring 28 and the reset baffle 29, and specifically comprises the following steps: the head end of the upper clamping plate 19 is provided with a rectangular through groove b, and two side surfaces of the rectangular through groove b are respectively provided with a through hole F and a through hole F' which are opposite; one side of the rectangular through groove b on the upper clamping plate 19 extends to the direction of the tail end of the upper clamping plate 19 to form an inclined U-shaped groove 1; one end of the reset baffle 29 is provided with sawteeth, the other end is provided with a U-shaped notch w, and the wall of the U-shaped notch w is provided with an inclined U-shaped groove 2; a puncture needle through hole E is formed between the rectangular through groove b and the sawteeth; two side surfaces of the reset baffle 29 are provided with a through hole G and a through hole G' which are opposite; the reset baffle 29 is arranged in the rectangular through groove b, a torsion spring 28 is arranged between the rectangular through groove b and an opening of the U-shaped notch w of the reset baffle 29, one end of the torsion spring 28 is lapped in the oblique U-shaped groove 1 on the upper clamping plate 19, and the other end is lapped in the oblique U-shaped groove 2 on the reset baffle 29; the pin VII27 is inserted into the through hole F, the through hole G, the torsion spring 28, the through hole G 'and the through hole F' in sequence. The reset baffle 29 can rotate around the pin VII27 under the action of external force, and the external force disappears and is reset under the action of the torsion spring 28.
As shown in fig. 6, the gun bar assembly 12 includes a securing bar 20.2 and a cover plate 26; the fixing rod 20.2 is provided with a puncture needle channel 21 and a connecting rod channel 30 which are parallel to each other and are respectively used for penetrating the needle core 3 and the connecting rod 13; the head end of the cover plate 26 is provided with a U-shaped groove 332, and the shape of the U-shaped groove 3 is matched with the stepped groove on the fixing rod 20.2 (the stepped groove is convenient for installing a suture line); the cover plate 26 covers the puncture needle channel of the fixing rod 20.2, and the two are fixedly connected (the seam of the two is welded);
the needle core 3 mainly comprises a needle seat 3.1, a needle bar 3.2 and a puncture needle 3.3 which are connected in sequence;
one end of the front gun handle 1, which is positioned at the U-shaped opening, extends in the direction away from the rear gun handle 2 to form an extension plate, and a transverse channel and a longitudinal channel which are communicated with each other are arranged in the extension plate;
as shown in fig. 7, the upper clamp plate 19, the lower clamp plate 20 and the head of the connecting rod 13 are connected in the following manner: the head of the connecting rod 13 passes through the U-shaped notch y of the upper clamping plate 19, and a pin V23 is used for connecting the head of the connecting rod 13 and the upper clamping plate 19 through a hole B19.1 and a hole A13.2; the crescent boss 19.2 of the upper splint 19 is embedded into the crescent groove 24 of the lower splint 20 to realize movable connection, and the free end of the upper splint 19 faces the tail part of the connecting rod 13; the connecting rod moves forwards, the crescent boss 19.2 of the upper clamping plate 19 moves in the crescent groove 24 through the pin V23, and the upper clamping plate and the lower clamping plate are closed; otherwise, the device is opened.
The needle core 3 passes through a transverse channel in the extension plate, the needle seat 3.1 is connected with the rear gun handle 2 through a pin I15, and the puncture needle 3.3 is positioned on one side of the front gun handle 1 far away from the rear gun handle 2. The pin I15 is fixed on the rear gun handle 2, after the needle core 3 is installed, the tail of the needle seat 3.1 is clamped by the pin I15 and drives the needle core 3 to move back and forth;
the fixing rod 20.2 and the cover plate 26 partially penetrate into the transverse channel in the extension plate; the tail of the cover plate is provided with a semicircular hole and a rectangular groove, a pin VIII penetrates into the semicircular hole to connect the cover plate 26 with the front gun handle 1, and a set screw is arranged in the rectangular groove to tightly press the cover plate 26 with the front gun handle 1. That is, the portion of the barrel assembly 12 within the transverse passage is fixedly attached to the forward pistol grip 1.
As shown in fig. 8, the connection mode between the handle 14 and the tail of the connecting rod 13 is as follows: the handle 14 is connected to the inverted U-shaped notch x13.1 of the connecting rod 13 by means of a pin VI25 through a hole C14.2, wherein the inverted U-shaped notch x13.1 of the connecting rod is inserted into the U-shaped notch z14.3 of the handle 14.
The handle 14 and the fore pistol grip 1 are connected in the following manner; the strip-shaped section of the handle 14 penetrates into the longitudinal channel; the portion of the strip-shaped section located inside the longitudinal channel, furthest from the ring-shaped section, is connected to the front pistol grip 1 by means of the pin IV 18.
The action process of the arthroscopic anterior meniscus suture gun comprises the following steps:
during operation of meniscus suture under arthroscope, the needle core 3 is arranged in the device, passes through the stepped groove on the gun rod assembly 12, passes through the big head of the stepped groove, and pulls the suture towards the direction of the small head of the stepped groove after passing through the suture, so that the suture is loaded on the device. As shown in fig. 9, when looking under the arthroscope, the head of the gun rod assembly 12 is moved to the position to be sutured, the handle is pulled anticlockwise, the driving link rod moves towards the head along the length direction, the free end of the upper clamp plate 19 faces the tail direction of the link rod due to the movable connection of the lower clamp plate 20 and the upper clamp plate 19 through the crescent boss 19.2 and the crescent groove, the upper clamp plate 19 moves downwards, and the head of the gun rod assembly 12 is engaged with the torn meniscus. The front and the back gun handles 2 are tightly held, and the pin I15 drives the needle core 3 to move forwards until the needle core 3 carries the suture to pass through the meniscus to be sutured. The suture is observed under the arthroscope to be clamped in the puncture needle through hole E22 on the gun rod assembly 12, and then the meniscal suture is completed. The elastic force of the compressed gun handle spring 8 is utilized to slowly release the front and rear gun handles 2, and the puncture needle channel 21 of the needle core 3 on the gun rod assembly 12 is retracted to the initial position of the device. By repeating the above operations, the damaged meniscus can be sutured.
Claims (10)
1. A front angle suture gun for a meniscus under an arthroscope comprises a front gun handle (1), a rear gun handle (2), a back-and-forth driving mechanism, a duckbill clip (4), a gun rod assembly (12) and a stylet (3), wherein the duckbill clip (4) comprises an upper clamping plate (19) and a lower clamping plate (20); the method is characterized in that: the back-and-forth driving mechanism comprises a handle (14) and a connecting rod (13); the head of the connecting rod (13) is provided with a hole A (13.2), and the tail of the connecting rod is provided with an inverted U-shaped notch x (13.1);
the gun rod assembly (12) comprises a fixed rod (20.2); the fixing rod (20.2) is provided with a puncture needle channel (21) and a connecting rod channel which are parallel to each other and are respectively used for penetrating the needle core (3) and the connecting rod (13); the needle core (3) comprises a puncture needle (3.3);
one end of the upper splint (19) is provided with a U-shaped gap y, the outer sides of the U-shaped gap y of the upper splint (19) are provided with crescent bosses (19.2), and holes B (19.1) are formed below the crescent bosses (19.2); one end of the lower clamping plate (20) is fixedly connected with one end of the fixing rod (20.2), the other end of the lower clamping plate (20) is provided with a rectangular through groove a (20.1), and two side walls of the rectangular through groove a (20.1) are oppositely provided with crescent grooves (24); the concave surface of the crescent groove (24) faces the upper splint (19);
the upper splint (19), the lower splint (20) and the connecting way of the head part of the connecting rod (13) are as follows: the head of the connecting rod (13) passes through the U-shaped notch y of the upper clamping plate (19), and a pin V (23) passes through a hole B (19.1) and a hole A (13.2) to connect the head of the connecting rod (13) and the upper clamping plate (19); the crescent boss (19.2) of the upper splint (19) is embedded into the crescent groove (24) of the lower splint (20) to realize movable connection, and the free end of the upper splint (19) faces the tail part of the connecting rod (13);
one end of the handle (14) is provided with a U-shaped notch z (14.3), the outer side wall of the U-shaped notch z (14.3) is provided with a hole C (14.2) and a hole D (14.1), and the hole C (14.2) is positioned above the hole D (14.1); the handle (14) is connected with the front pistol grip (1) through a hole D (14.1) by a pin IV (18);
the connecting mode of the handle (14) and the tail part of the connecting rod (13) is as follows: the handle (14) is connected with the inverted U-shaped notch x (13.1) on the connecting rod (13) through the hole C (14.2) by a pin VI (25), and the inverted U-shaped notch x (13.1) of the connecting rod (13) is inserted into the U-shaped notch z (14.3) of the handle (14).
2. The arthroscopic anterior meniscus sewing gun according to claim 1, wherein the upper splint (19) is provided with a puncture needle through hole E (22) for the puncture needle (3.3) to pass through.
3. The arthroscopic anterior meniscus sewing gun according to claim 1, wherein a through stepped groove is provided between the rectangular through groove a (20.1) of the lower splint (20) and the puncture needle channel (21).
4. The arthroscopic anterior meniscus sewing gun according to claim 2, wherein the puncture needle through hole E (22) is formed by the upper splint (19), the pin VII (27), the torsion spring (28) and the return baffle (29), and specifically: the head end of the upper clamping plate (19) is provided with a rectangular through groove b, and two side surfaces of the rectangular through groove b are respectively provided with a through hole F and a through hole F' which are opposite; one side of the rectangular through groove b extends to the direction of the tail end of the upper clamping plate (19) to form an inclined U-shaped groove 1; one end of the reset baffle (29) is provided with sawteeth, the other end is provided with a U-shaped notch w, and the wall of the U-shaped notch w is provided with an inclined U-shaped groove 2; a puncture needle through hole E is formed between the rectangular through groove b and the sawteeth, and two side surfaces of the reset baffle (29) are provided with a through hole G and a through hole G' which are opposite;
the reset baffle (29) is arranged in the rectangular through groove b, a torsion spring (28) is arranged between the rectangular through groove b and an opening of a U-shaped notch w of the reset baffle (29), one end of the torsion spring (28) is lapped in the oblique U-shaped groove 1 on the upper clamping plate (19), and the other end is lapped in the oblique U-shaped groove 2 on the reset baffle (29); the pin VII (27) is inserted into the through hole F, the through hole G, the torsion spring (28), the through hole G 'and the through hole F' in sequence.
5. The arthroscopic anterior meniscus sewing gun according to claim 1, wherein the front gun handle (1) is in a shape of a straight plate, the rear gun handle (2) is in a shape of an L plate, and the front gun handle (1) and the rear gun handle (2) are partially overlapped and then connected into a shape of a U plate through a pin II (16);
the front pistol handle (1) and the rear pistol handle (2) are movably connected into a pistol handle structure, and a moving guide mechanism and an elastic reset mechanism are arranged between the two.
6. The arthroscopic anterior meniscus sewing gun according to claim 5, wherein the movement guide mechanism is composed of a gun handle limiting plate (5) and an insertion column (6), the gun handle limiting plate (5) is of a plate-shaped structure, one end of the gun handle limiting plate is connected with the rear gun handle (2) through a pin III (17), the other end of the gun handle limiting plate is provided with a strip-shaped hole (7), and the insertion column (6) is fixed on the front gun handle (1) and inserted into the strip-shaped hole (7);
the elastic reset mechanism consists of a gun handle spring (8) and a gun handle spring guide post (9), a front guide hole (10) and a rear guide hole (11) which are opposite are respectively arranged in the front gun handle (1) and the rear gun handle (2), the gun handle spring (8) is sleeved on the gun handle spring guide post (9), one end of the gun handle spring (8) and one end of the gun handle spring guide post (9) are embedded into the front guide hole (10), and the other end of the gun handle spring guide post is embedded into the rear guide hole (11); the gun handle limiting plate (5) is closer to the U-shaped opening relative to the gun handle spring (8).
7. The arthroscopic anterior meniscus sewing gun according to claim 1, wherein the needle core (3) mainly comprises a needle seat (3.1), a needle rod (3.2) and a puncture needle (3.3) which are connected in sequence, the needle seat (3.1) is connected with the rear gun handle (2), and the puncture needle (3.3) is positioned on one side of the front gun handle (1) far away from the rear gun handle (2).
8. The arthroscopic anterior meniscus sewing gun according to claim 6, wherein the end of the front gun handle (1) at the opening of the U shape extends in the direction away from the rear gun handle (2) to form an extension plate, a transverse channel and a longitudinal channel which are communicated with each other are arranged in the extension plate, and the needle core (3) passes through the transverse channel;
the needle seat (3.1) is connected with the rear gun handle (2) through a pin I (15).
9. The arthroscopic anterior meniscus sewing gun according to claim 1, wherein the handle (14) is in the shape of an inverted "P" plate and is formed by connecting adjacent strip-shaped segments and ring-shaped segments;
the connection of the fore pistol grip (1) by the U-shaped notch z (14.3) means that: the opening of the U-shaped notch faces away from the pin IV (18); the straight line section of the ring-shaped section is closer to the front gun handle (1) relative to the curve section of the ring-shaped section, and the strip-shaped section penetrates into the longitudinal channel; the strip section is positioned in the longitudinal channel, and the position farthest from the ring section is connected with the front gun handle (1) through a pin IV (18).
10. The arthroscopic anterior meniscus sewing gun as claimed in claim 1, wherein the gun rod assembly (12) further comprises a cover plate (26), the head end of the cover plate is designed with a U-shaped groove (3), the shape of the U-shaped groove (3) is matched with the stepped groove on the fixing rod (20.2); the cover plate (26) covers the puncture needle channel of the fixing rod (20.2), and the cover plate and the fixing rod are fixedly connected;
the fixing rod (20.2) and the cover plate (26) partially penetrate into the transverse channel in the extension plate; the tail of the cover plate is provided with a semicircular hole and a rectangular groove, a pin VIII penetrates into the semicircular hole to connect the cover plate (26) with the front gun handle (1), and a set screw is arranged in the rectangular groove to tightly press the cover plate (26) with the front gun handle (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110139932.4A CN112971881B (en) | 2021-02-02 | 2021-02-02 | Joint mirror lower meniscus anterior angle sewing gun |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110139932.4A CN112971881B (en) | 2021-02-02 | 2021-02-02 | Joint mirror lower meniscus anterior angle sewing gun |
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| CN112971881B CN112971881B (en) | 2022-10-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113995455A (en) * | 2021-12-30 | 2022-02-01 | 杭州锐健马斯汀医疗器材有限公司 | Suturing device and suturing method |
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| CN113995455A (en) * | 2021-12-30 | 2022-02-01 | 杭州锐健马斯汀医疗器材有限公司 | Suturing device and suturing method |
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| CN112971881B (en) | 2022-10-21 |
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