CN109044433B - Continuous stitching instrument for laparoscopic stitching operation - Google Patents
Continuous stitching instrument for laparoscopic stitching operation Download PDFInfo
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- CN109044433B CN109044433B CN201810995913.XA CN201810995913A CN109044433B CN 109044433 B CN109044433 B CN 109044433B CN 201810995913 A CN201810995913 A CN 201810995913A CN 109044433 B CN109044433 B CN 109044433B
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- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000008569 process Effects 0.000 claims abstract description 18
- 230000009471 action Effects 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000009958 sewing Methods 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000001356 surgical procedure Methods 0.000 claims 2
- 230000009286 beneficial effect Effects 0.000 description 13
- 206010052428 Wound Diseases 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 210000003445 biliary tract Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000002674 endoscopic surgery Methods 0.000 description 1
- 238000009802 hysterectomy Methods 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000004291 uterus Anatomy 0.000 description 1
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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
- A61B17/0482—Needle or suture guides
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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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- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention relates to a continuous stitching instrument for laparoscopic stitching operation, which comprises a spool seat, a spool, a needle cylinder, a stitching needle and a driving mechanism; the spool seat is arranged at one end of the needle cylinder; a suture needle is arranged in the needle cylinder, and the needle head of the suture needle extends out of one end part of the needle cylinder; the spool seat is internally provided with a spool accommodating cavity extending to two ends of the spool seat, the spool is arranged in the spool accommodating cavity, one end part of the spool, which is close to the suture needle, is provided with a joint cavity, and the side wall of the spool seat is provided with a wire outlet groove; the end part of the spool seat, which is close to the needle cylinder, is provided with a separation structure; the driving mechanism is in transmission connection with the suture needle and can drive the suture needle to move along the axial direction of the needle cylinder until the needle head stretches into the joint cavity of the spool, so that the needle head is clamped with the joint cavity, or drive the suture needle to move back, in the moving back process, the driving mechanism synchronously drives the suture needle to rotate by 90 degrees and brings the spool out, or the needle head is separated from the joint cavity under the action of the separating structure. The advantages are that: can reduce the difficulty of suture technique and shorten the operation period.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a continuous stitching instrument for endoscopic surgery.
Background
When in hysterectomy, the vaginal stump needs to be sutured, medical staff uses an operation suture bend to suture the stump in the traditional operation process, the whole suture process has higher requirements on the medical suture technology, the suture time is long, the time and the labor are consumed, and the rapid recovery of patients is also not facilitated.
Disclosure of Invention
The invention aims to provide a continuous stitching instrument for laparoscopic stitching operation, which effectively overcomes the defects of the prior art.
The technical scheme for solving the technical problems is as follows: a continuous stitching instrument for laparoscopic suture operation comprises a spool seat, a spool, a needle cylinder, a stitching needle and a driving mechanism;
the needle cylinder is a cylinder with two open ends, the spool seat is arranged at one end of the needle cylinder at intervals, and the spool seat are connected with each other through a connecting piece;
a suture needle is arranged in the needle cylinder along the axial direction of the needle cylinder, and the needle head of the suture needle is conical and extends out of one end part of the needle cylinder, which is close to the spool seat;
a spool accommodating cavity extending to two ends of the spool seat and matched with the spool is penetrated in the spool seat, the spool is arranged in the spool accommodating cavity, a joint cavity matched with the needle head is arranged at one end part of the spool, which is close to the suture needle, and a wire outlet groove communicated with the spool accommodating cavity is arranged on the side wall of the spool seat;
the spool seat has one end near the needle cylinder and one separating structure to separate the needle and the spool;
the driving mechanism is arranged at one end of the needle cylinder far away from the spool seat, is in transmission connection with the suture needle, can drive the suture needle to move along the axial direction of the needle cylinder to the needle head to extend into the joint cavity of the spool, and enables the needle head to be clamped with the joint cavity, or drives the suture needle to drive the needle head to move back, and in the process of moving back the needle head, the driving mechanism synchronously drives the suture needle to rotate 90 degrees clockwise or anticlockwise and brings the spool out, or enables the needle head to be separated from the joint cavity under the action of the separating structure.
The beneficial effects of the invention are as follows: the whole stitching instrument has simple structural design, is convenient to operate and use, can stitch wounds effectively, reduces the difficulty of stitching technology, shortens the operation period and has good stitching effect.
On the basis of the technical scheme, the invention can be improved as follows.
Further, a clamping structure is arranged on the surface of the needle head, a clamping structure corresponding to the clamping structure is arranged on the cavity wall of the combined cavity, the driving mechanism can drive the suture needle to move along the axial direction of the needle cylinder to the position that the needle head stretches into the combined cavity of the spool, the clamping structure is clamped with the clamping structure, or the suture needle is driven to drive the needle head to move and return, and in the process of moving and returning the needle head, the driving mechanism synchronously drives the suture needle to rotate by 90 degrees clockwise or anticlockwise and brings out the spool, or the clamping structure is separated from the clamping structure under the action of the separating structure.
The beneficial effect of adopting the further scheme is that the design of the clamping structure and the clamping position structure is beneficial to the state that the needle head 51 is effectively clamped and separated with the combined cavity in the moving process along with the suture needle 5, thereby realizing effective suture.
Further, the engaging structure is a plurality of protruding points uniformly arranged on the surface of the needle, the engaging structure is a ring groove formed on the cavity wall of the joint cavity, the protruding points respectively extend into and engage with the ring groove when the engaging structure is engaged with the engaging structure, and the protruding points slide out along the ring groove when the engaging structure is separated from the engaging structure.
The technical scheme has the beneficial effects that the clamping structure is simple and reasonable in design, and is beneficial to clamping or separating with the spool in the moving process of the needle head.
Further, the separation structure comprises two arc-shaped elastic pieces, the two elastic pieces are respectively arranged at the end part of the spool seat, which is close to the needle cylinder, and are symmetrically distributed at two sides of the joint cavity, the arc tops of the two elastic pieces are mutually close to each other and respectively extend into the opening of the joint cavity, which is close to one end of the needle cylinder, the two outer periphery sides of the sewing needle corresponding to the needle head are axially symmetrically provided with notch grooves, the notch grooves respectively extend to the conical surface of the needle head, the connecting line between the convex point and the axis of the sewing needle is perpendicular to the planes of the two notch grooves, when the needle head of the sewing needle extends into the joint cavity, the arc tops of the two elastic pieces are respectively contacted with the conical surface of the needle head and are extruded and deformed, at the moment, the sewing needle is taken out when moving back, or the arc tops of the two elastic pieces are respectively correspondingly moved into the notch grooves at the two periphery sides, the spool moves back to enable the spool to prop against the elastic pieces and clamp the clamping structure and separate from the needle head.
The beneficial effect of adopting above-mentioned further scheme is that separation structural design is ingenious, utilizes elastic deformation and the restriction of position of elastic piece to accomplish the spacing removal to the spool, and it is very convenient to use.
Further, the connecting piece is a strip-shaped plate, and is arranged on one side of the spool seat and one side of the needle cylinder, and two ends of the connecting piece are respectively connected and fixed with the spool seat and the side end of the needle cylinder.
The adoption of the further scheme has the beneficial effects that the design is beneficial to the connection of the spool seat and the needle cylinder, so that the whole structure can not influence normal sewing.
Further, the driving mechanism comprises a limit sleeve, a telescopic piece, a pushing piece and a positioning barrel;
the positioning cylinder is a cylinder with a hollow interior and two ends provided with openings, and is coaxially fixed at the opening of one end part of the needle cylinder, which is far away from the spool seat;
the limiting sleeve is a hollow cylinder, is coaxially fixed on the inner wall of the positioning cylinder, is open at one end close to the spool seat, is provided with four sliding grooves penetrating through the side wall of the limiting sleeve along the axial direction, and are distributed at equal intervals along the circumferential direction of the limiting sleeve, one ends of the sliding grooves extend to one end of the limiting sleeve close to the spool seat, a clamping part is limited between two adjacent sliding grooves, inclined teeth are respectively arranged at one end of the clamping part close to the spool seat, and the inclined directions of the inclined teeth of the four clamping parts are kept consistent in the circumferential direction;
the pushing piece is a cylinder, the pushing piece is coaxially arranged in the limit sleeve, four sliding blocks which are uniformly distributed in the circumferential direction and correspond to the sliding grooves one by one are arranged on the periphery of one end of the pushing piece, which is away from the needle cylinder, the sliding blocks respectively extend into the corresponding sliding grooves and can slide along the corresponding sliding grooves, and the other end of the pushing piece penetrates through the end part of the locating cylinder, which is away from the needle cylinder;
the telescopic piece is of a cylindrical structure, one end of the telescopic piece is positioned in the limit sleeve, the other end of the telescopic piece is connected with the inner wall of one end of the locating cylinder connected with the needle cylinder through an elastic piece, four strip-shaped clamping blocks which are uniformly distributed in the circumferential direction and are in one-to-one correspondence with the sliding grooves and matched with the sliding grooves are arranged at one end of the telescopic piece, the clamping blocks respectively extend into the corresponding sliding grooves and are in contact with the corresponding sliding blocks, and one end of the clamping block, which is away from the telescopic piece, is provided with an inclined plane matched with the inclined teeth;
the other end of the telescopic piece is coaxially provided with a connecting column, and the connecting column penetrates through an opening at the end part of one end of the positioning cylinder connected with the needle cylinder and is fixedly connected with one end of the suture needle far away from the needle head;
the other end of the pushing piece is pressed under the action of external force, the pushing piece moves towards the needle cylinder, the telescopic piece is driven by the sliding block to move to the position that one end of the clamping block, which is far away from the telescopic piece, is separated from the corresponding sliding groove, the telescopic piece drives the suture needle to move to the joint cavity of the needle extending into the spool along the axial direction of the needle cylinder through the connecting column, the elastic piece is synchronous, the elastic piece is pressed and deformed, then the external force is removed, the lower end of the clamping block slides along the inclined plane of the inclined tooth of the adjacent clamping part under the action of the elastic force, and sequentially slides into the adjacent sliding groove and moves away from the needle cylinder along the sliding groove, and the suture needle is driven to move back through the connecting column.
The driving mechanism has the beneficial effects that the driving mechanism is ingenious and reasonable in design, can effectively drive the suture needle to stretch and rotate, and is simple and convenient to operate.
Further, the elastic member is a spring and is sleeved outside the connecting column.
The beneficial effect of adopting above-mentioned further scheme is that its reasonable in design makes whole compact structure, uses stably.
Further, the two ends of the wire outlet groove extend to the two end parts of the wire shaft seat respectively.
The technical proposal has the beneficial effect of facilitating the outgoing line of the suture on the spool.
Drawings
FIG. 1 is a schematic view showing the construction of a continuous suture device for laparoscopic suture operation according to the present invention;
FIG. 2 is a schematic view showing the structure of the needle of the continuous suture device for laparoscopic suture operation of the present invention extending into the reel seat;
FIG. 3 is an enlarged view of the portion A of FIG. 2;
fig. 4 is a schematic view showing a structure in which a needle of the continuous suture device for laparoscopic suture operation of the present invention is positioned outside a reel seat.
In the drawings, the list of components represented by the various numbers is as follows:
1. the connecting piece, 2, the spool seat, 3, the spool, 4, the driving mechanism, 5, the suture needle, 6, the needle cylinder, 21, the separation structure, 22, the wire outlet groove, 41, the limit sleeve, 42, the telescopic piece, 43, the pushing piece, 44, the elastic piece, 51, the needle head, 411, the chute, 412, the clamping part, 413, the helical tooth, 421, the fixture block, 431 and the sliding block.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
Examples: as shown in fig. 1 to 4, the continuous stapler for laparoscopic suture operation of the present embodiment includes a bobbin base 2, a bobbin 3, a needle cylinder 6, a suture needle 5, and a driving mechanism 4;
the needle cylinder 6 is a cylinder with two open ends, the spool seat 2 is arranged at one end of the needle cylinder 6 at intervals, and the spool seat are connected with each other through the connecting piece 1;
a suture needle 5 is arranged in the needle cylinder 6 along the axial direction, the needle head 51 of the suture needle 5 is conical and extends out of one end part of the needle cylinder 6, which is close to the spool seat 2;
a spool accommodating cavity extending to two ends of the spool seat 2 and matched with the spool 3 is penetrated in the spool seat 2, the spool 3 is arranged in the spool accommodating cavity, a joint cavity matched with the needle head 51 is arranged at one end part of the spool seat near the suture needle 5, and a wire outlet groove 22 communicated with the spool accommodating cavity is arranged on the side wall of the spool seat 2;
the end of the spool seat 2 near the needle cylinder 6 is provided with a separating structure 21 for separating the needle 51 and the spool 3;
the driving mechanism 4 is installed at one end of the needle cylinder 6 far away from the spool seat 2, is in transmission connection with the suture needle 5, and can drive the suture needle 5 to move along the axial direction of the needle cylinder 6 until the needle head 51 stretches into the joint cavity of the spool 3, and enables the needle head 51 to be clamped with the joint cavity, or drives the suture needle 5 to drive the needle head 51 to move back, and in the process of moving back the needle head 51, the driving mechanism synchronously drives the suture needle 5 to rotate 90 degrees clockwise or anticlockwise and brings the spool 3 out, or enables the needle head 51 to be separated from the joint cavity under the action of the separating structure 21.
In the suturing process, the area between the suture needle 5 and the spool seat 2 forms a suturing area, before suturing, the spool 3 filled with suture is placed in the spool accommodating cavity, one end of the suture is ensured to be penetrated out from the opening of one end of the spool accommodating cavity far away from the needle cylinder 6 (the opening of the end is narrow, the spool 3 cannot pass through), the other end of the suture is penetrated out of the spool seat 2 by the wire outlet groove 22, when suturing, any side of vaginal stump tissue to be sutured is placed in the suturing area, next, the suture needle 5 is driven to move towards the spool seat 2 by the driving mechanism 4, the needle head 51 penetrates the stump tissue at one side and then stretches into the joint cavity extending into the spool 3 to be mutually clamped with the joint cavity, then, the driving mechanism 4 drives the suture needle 5 to move back (complete one driving process), taking the spool 3 out of (through) the stump suture tissue on one side (at this time, the separating structure 21 does not limit the spool 3 to be taken out), and in the process, the suture needle 5 is driven by the driving mechanism 4 to rotate 90 degrees, next, the whole suture device is moved to enable the spool seat 2 to be placed between the stump suture tissues on two sides, the suture needle 5 is driven by the driving mechanism 4 to move towards the spool seat 2 again, the suture needle 5 after 90 degrees of rotation drives the spool 3 to extend into the spool seat 2, then the suture needle 5 moves back, in the process of returning, the separating structure 21 limits the spool 3 to be taken out of the spool seat 2 while the spool 3 is separated from the needle 51, next, the whole suture device is moved to enable the spool seat 2 to be placed between the stump suture tissues on the other side, the suture needle 5 is driven by the driving mechanism 4 to move towards the spool seat 2, and the needle head 51 is inserted into the combined cavity of the spool 3 after penetrating the residual end suture tissue on one side, the needle head 51 is clamped with the combined cavity again, then the driving mechanism 4 drives the suture needle 5 to move back (complete a driving process), the spool 3 is taken out (penetrating) of the residual end suture tissue on one side (at this time, the separating structure 21 does not limit the spool 3 to be taken out), and in the process, the suture needle 5 is driven by the driving mechanism 4 to rotate by 90 degrees, and then the 'one side-middle-other side' is repeated to perform effective, rapid and continuous suture on the vaginal residual end.
Preferably, a clamping structure is disposed on the surface of the needle 51, a clamping structure corresponding to the clamping structure is disposed on a cavity wall of the combined cavity, the driving mechanism 4 can drive the suture needle 5 to move along an axial direction of the needle cylinder 6 until the needle 51 stretches into the combined cavity of the spool 3, and the clamping structure is clamped with the clamping structure, or the suture needle 5 is driven to drive the needle 51 to move back, and in a process of moving back the needle 51, the driving mechanism synchronously drives the suture needle 5 to rotate 90 degrees clockwise or anticlockwise and brings out the spool 3, or the clamping structure is separated from the clamping structure under the action of the separating structure 21, and the design of the clamping structure and the clamping structure is beneficial to the clamping of the needle 51 and the combined cavity and the separation under the action of the separating structure 21, so that the spool 3 is intermittently carried out through tissues, namely, the suture is finished once, and the design is ingenious and practical.
Preferably, the engaging structure is a plurality of protruding points uniformly arranged on the surface of the needle 51 in a surrounding manner, the engaging structure is a ring groove formed on the cavity wall of the joint cavity, the protruding points respectively extend into and engage with the ring groove when the engaging structure is engaged with the engaging structure, the protruding points slide out along the ring groove when the engaging structure is separated from the engaging structure, the needle 51 extends into the joint cavity to complete the engagement of the protruding points and the ring groove, and then, if the separation structure 21 is limited, the spool 3 slides out of the ring groove under the limitation of the separation structure 21 when the needle 51 returns, the spool 3 is separated from the needle 51, and when the needle 51 returns from the joint cavity without the limitation of the separation structure 21, the spool 3 can be brought into the wire shaft seat 2 by the engagement of the protruding points and the ring groove, and the design is very ingenious, and the operation is simple and quick.
Preferably, the separating structure 21 comprises two arc-shaped elastic pieces, the two elastic pieces are respectively mounted at the end part of the spool seat 2 near the needle cylinder 6 and symmetrically distributed at two sides of the joint cavity, the arc tops of the two elastic pieces are mutually close and respectively extend into the opening of the joint cavity near the needle cylinder 6, two sides of the periphery of the needle 5 corresponding to the needle head 51 are symmetrically provided with notch grooves along the axial direction, the notch grooves respectively extend to the conical surface of the needle head 51, the connecting line between the convex points and the axis of the needle 5 is perpendicular to the plane where the two notch grooves are located, when the needle head 51 of the needle 5 extends into the joint cavity, the arc tops of the two elastic pieces can respectively contact with the conical surface of the needle head 51 and are extruded and deformed, the sewing needle 5 moves back to bring the spool 3 out, or the arc tops of the two elastic sheets move into the notch grooves on two sides of the periphery of the needle head 51, at this time, the sewing needle 5 moves back to make the spool 3 prop against the elastic sheets, the clamping structure and the corresponding clamping structure are separated, as shown in fig. 2, 3 and 4, in the initial state, the whole device is horizontally arranged, the spool 3 is positioned in the spool seat 3, at this time, the annular grooves in the joint cavity of the spool 3 correspond to the two elastic sheets (namely, the annular grooves are also positioned on two sides of the central line of the joint cavity), in this state, the notch grooves on two sides of the sewing needle 5 are just positioned on the upper part and the lower part of the sewing needle 5, in this process, the driving mechanism 4 drives the needle head 51 of the sewing needle 5 to move towards the spool seat 2 and move to the needle head 51 to extend into the joint cavity of the spool 3, the two elastic sheets slide across the outer surface of the joint of the needle head 51 and the suture needle 5 body, the elastic sheets are extruded and deformed, meanwhile, the protruding points extend into the corresponding annular grooves and are clamped with the annular grooves, the suture needle 5 is driven by the driving mechanism 4 to move back, the needle head 51 and the spool 3 clamped with the needle head 51 are pulled out of the joint cavity, the two elastic sheets slide across the surface of the suture needle 5 and gradually recover to deform, the suture needle 5 rotates by 90 degrees, at the moment, notch grooves on two sides of the suture needle 5 just rotate to positions corresponding to the two elastic sheets, the driving mechanism 4 is operated again to drive the suture needle 5 to move towards the spool seat 2, the arc tops of the two elastic sheets respectively slide across the surface of the spool 3 and extend into the notch grooves on two sides of the suture needle 5 until the spool 3 is completely fed into the spool seat 2, the driving mechanism 4 continues to drive the suture needle 5 to move back, at the moment, the arc-shaped protruding points of the two elastic sheets extend into the corresponding notch grooves gradually, the two elastic sheets move back along with the needle head 51, the two elastic sheets respectively abut against the end of the spool 3, the surface of the needle head 3 is separated from the spool seat 3, the spool seat 3 is repeatedly carried out by the spool seat 2, and the thread is continuously wound around the spool seat 2 after the spool seat is continuously wound, the thread is continuously wound around the spool, and the needle is finished, the thread is continuously wound, and the thread is wound around the spool after the spool is wound, and the thread is wound.
Preferably, the connecting piece 1 is a strip-shaped plate, which is disposed on one side of the spool seat 2 and the needle cylinder 6, and two ends of the strip-shaped plate are respectively connected and fixed with the side ends of the spool seat 2 and the needle cylinder 6, so that the design is reasonable, the spool seat 2 and the needle cylinder 6 are connected into a whole, and normal suturing of human tissues is not affected.
Preferably, the driving mechanism includes a limiting sleeve 41, a telescopic member 42, a pushing member 43 and a positioning cylinder 45;
the positioning cylinder 45 is a cylinder with a hollow interior and openings at two ends, and is coaxially fixed at one end of the needle cylinder 6 far away from the spool seat 2;
the limiting sleeve 41 is a hollow cylinder, and is coaxially fixed on the inner wall of the positioning cylinder 45, one end of the limiting sleeve 41, which is close to the spool seat 2, is open, four sliding grooves 411 penetrating through the side wall of the limiting sleeve 41 are respectively formed in the side wall of the limiting sleeve 41 along the axial direction of the limiting sleeve, the four sliding grooves 411 are respectively distributed at equal intervals along the circumferential direction of the limiting sleeve 41, one ends of the sliding grooves 411 extend to one end of the limiting sleeve 41, which is close to the spool seat 2, a clamping part 412 is defined between two adjacent sliding grooves 411, one end of the clamping part 412, which is close to the spool seat 2, is respectively provided with a helical tooth 413, and the helical tooth inclination directions of the four clamping parts 412 are kept consistent in the circumferential direction;
the pushing member 43 is a cylinder, the pushing member 43 is coaxially disposed in the limiting sleeve 41, and four sliding blocks 431 circumferentially uniformly distributed and in one-to-one correspondence with the sliding grooves 411 are protruded on the outer periphery of one end of the pushing member 43 facing away from the needle cylinder 6, the sliding blocks 431 respectively extend into the corresponding sliding grooves 411 and can slide along the corresponding sliding grooves 411, and the other end of the pushing member 43 passes through an opening of one end of the positioning cylinder 45 facing away from the needle cylinder 6;
the telescopic member 42 has a cylindrical structure, one end of the telescopic member is located in the limit sleeve 41, the other end of the telescopic member is connected with an inner wall of one end of the locating cylinder 45 connected with the needle cylinder 6 through an elastic member 44, one end of the telescopic member 42 is provided with four strip-shaped clamping blocks 421 which are uniformly distributed in the circumferential direction and are in one-to-one correspondence with the sliding grooves 411 and are matched with the sliding grooves 411, the clamping blocks 421 respectively extend into the corresponding sliding grooves 411 and are in contact with the corresponding sliding blocks 431, and one end of the clamping blocks 421, which is away from the telescopic member 42, is provided with inclined surfaces matched with the inclined teeth 413;
a connecting column is coaxially arranged at the other end of the telescopic piece 42, penetrates through an opening at one end of the positioning cylinder 45 connected with the needle cylinder 6, and is fixedly connected with one end of the suture needle 5 far away from the needle head 51;
the other end of the pushing member 43 is pressed under the action of external force, the pushing member 43 moves towards the syringe 6, and drives the telescopic member 42 to move to the end of the clamping block 421 away from the telescopic member 42 through the sliding block 431, so that the one end of the telescopic member 42, which is far away from the corresponding sliding groove 411, is separated from the corresponding sliding groove 411, the telescopic member 42 drives the suture needle 5 to move along the axial direction of the syringe 6 until the needle head 51 stretches into the combined cavity of the spool 3 through the connecting column, the elastic member 44 is synchronously deformed under pressure, then the external force is removed, the lower end of the clamping block 421 slides along the inclined plane of the inclined tooth of the adjacent clamping part 412 under the action of the elastic force, slides into the adjacent sliding groove 411 in sequence, and moves away from the syringe 6 along the sliding groove 411, so that the suture needle 5 is driven to move back through the connecting column.
Preferably, the elastic member 44 is a spring, and is sleeved outside the connecting column, so that the design is reasonable, and the structure is compact and stable.
Preferably, as shown in fig. 4, the two ends of the wire outlet slot 22 extend to the two ends of the spool seat 2, which is beneficial to the wire outlet of the suture on the spool 3.
What needs to be specifically stated is: the end of the pushing member 43 extending out of the needle cylinder 6 (the end far away from the spool seat 2) should be connected with a pressing device, and the pressing device can use a pressing and holding type pressing handle commonly used in the existing medical apparatus, so that the medical staff can press the pushing member 43 to perform the suturing operation.
It should be noted that: the technique is not limited to suturing the vaginal stump, but can be applied to other suturing operations, such as: the utility model has the advantages of to carry out the operation of cutting off entirely to uterus, also can be applied to the suture of cervical stump, also can be applied to the tissue suture of operations such as biliary tract, liver, of course when being applied to other suture operations and use, consider that the needle bar can be crooked advancing with certain radian to the circumstances of sewing up, consequently, can be with the needle cylinder 6 be close to the one end of spool seat 2 bending specific angle, the needle bar part of needle 5 adopts flexible needle bar, when advancing needle 5 flexible, the needle 5 wholly realizes the removal of a certain bending angle along needle cylinder 6, namely will be straight line press advance to change needle 5 syringe needle 51 into and remove the suture with the pitch arc of certain bending.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (3)
1. A continuous stapler for laparoscopic suturing, comprising: comprises a spool seat (2), a spool (3), a needle cylinder (6), a suture needle (5) and a driving mechanism (4);
the needle cylinder (6) is a cylinder with two open ends, the spool seat (2) is arranged at one end of the needle cylinder (6) at intervals, and the spool seat are connected with each other through the connecting piece (1);
a suture needle (5) is arranged in the needle cylinder (6) along the axial direction of the needle cylinder, and a needle head (51) of the suture needle (5) is conical and extends out of one end part of the needle cylinder (6) close to the spool seat (2);
a spool accommodating cavity which extends to two ends of the spool seat (2) and is matched with the spool (3) is penetrated and arranged in the spool seat (2), the spool (3) is arranged in the spool accommodating cavity, a joint cavity matched with the needle head (51) is arranged at one end part of the spool seat, which is close to the suture needle (5), and a wire outlet groove (22) communicated with the spool accommodating cavity is arranged on the side wall of the spool seat (2);
the end part of the spool seat (2) close to one end of the needle cylinder (6) is provided with a separation structure (21) for separating the needle head (51) from the spool (3);
the driving mechanism (4) is arranged at one end of the needle cylinder (6) far away from the spool seat (2), is in transmission connection with the suture needle (5), can drive the suture needle (5) to move along the axial direction of the needle cylinder (6) until the needle head (51) stretches into the joint cavity of the spool (3), and enables the needle head (51) to be clamped with the joint cavity, or drives the suture needle (5) to drive the needle head (51) to move back, and in the process of moving back the needle head (51), the driving mechanism synchronously drives the suture needle (5) to rotate 90 degrees clockwise or anticlockwise and brings the spool (3), or enables the needle head (51) to be separated from the joint cavity under the action of the separation structure (21);
the surface of the needle head (51) is provided with a clamping structure, the cavity wall of the combined cavity is provided with a clamping structure corresponding to the clamping structure, the driving mechanism (4) can drive the suture needle (5) to move along the axial direction of the needle cylinder (6) until the needle head (51) stretches into the combined cavity of the spool (3), the clamping structure is clamped with the clamping structure, or the suture needle (5) is driven to drive the needle head (51) to move and return, and in the process of moving and returning the needle head (51), the driving mechanism synchronously drives the suture needle (5) to rotate by 90 degrees clockwise or anticlockwise and brings the spool (3) out, or the clamping structure is separated from the clamping structure under the action of the separation structure (21);
the clamping structure is a plurality of protruding points uniformly and annularly arranged on the surface of the needle head (51), the clamping structure is an annular groove which is annularly arranged on the cavity wall of the combined cavity, when the clamping structure is clamped with the clamping structure, the protruding points respectively extend into and are clamped in the annular groove, and when the clamping structure is separated from the clamping structure, the protruding points slide out along the annular groove;
the separation structure (21) comprises two arc-shaped elastic sheets which are respectively arranged at one end part of the spool seat (2) close to the needle cylinder (6) and symmetrically distributed at two sides of the joint cavity, arc tops of the two elastic sheets are mutually close to each other and respectively extend into openings of the joint cavity close to one end of the needle cylinder (6), notch grooves are symmetrically arranged at two sides of the periphery of the needle head (51) corresponding to the suture needle (5) along the axial direction of the needle head, the notch grooves respectively extend to conical surfaces of the needle head (51), a connecting line between the convex points and the axis of the suture needle (5) is perpendicular to the planes of the two notch grooves, when the needle head (51) of the suture needle (5) extends into the joint cavity, the arc tops of the two elastic sheets can respectively contact with the conical surfaces of the needle head (51) and are extruded and deformed at the moment, the suture needle (5) is moved back to the spool (3), or the two elastic sheets are respectively clamped against the peripheries of the needle head (51) corresponding to the two elastic sheets, and the two elastic sheets are correspondingly clamped to the spool (3) and the two arc-shaped structures are separated;
the connecting piece (1) is a strip-shaped plate and is arranged on one side of the spool seat (2) and one side of the needle cylinder (6), and two ends of the connecting piece are respectively connected and fixed with the spool seat (2) and the side end of the needle cylinder (6);
the driving mechanism comprises a limit sleeve (41), a telescopic piece (42), a pushing piece (43) and a positioning cylinder (45);
the positioning cylinder (45) is a cylinder with a hollow interior and openings at two ends, and is coaxially fixed at one end part of the needle cylinder (6) far away from the spool seat (2);
the limiting sleeve (41) is a hollow cylinder, is coaxially fixed on the inner wall of the positioning cylinder (45), is close to one end of the spool seat (2) and is open, four sliding grooves (411) penetrating through the side wall of the limiting sleeve (41) are respectively formed in the side wall of the limiting sleeve along the axial direction of the limiting sleeve, the four sliding grooves (411) are respectively distributed at equal intervals along the circumferential direction of the limiting sleeve (41), one end of each sliding groove (411) extends to the end part of the limiting sleeve (41) close to the spool seat (2), a clamping part (412) is defined between two adjacent sliding grooves (411), oblique teeth (413) are respectively arranged at the end part of the clamping part (412) close to the spool seat (2), and the oblique tooth oblique directions of the four clamping parts (412) are kept consistent in the circumferential direction;
the pushing piece (43) is a cylinder, the pushing piece (43) is coaxially arranged in the limit sleeve (41), four sliding blocks (431) which are circumferentially uniformly distributed and are in one-to-one correspondence with the sliding grooves (411) are arranged on the periphery of one end of the pushing piece (43) which is away from the needle cylinder (6) in a protruding mode, the sliding blocks (431) respectively extend into the corresponding sliding grooves (411) and can slide along the corresponding sliding grooves (411), and the other end of the pushing piece (43) penetrates through an opening of one end portion of the locating cylinder (45) which is far away from the needle cylinder (6);
the telescopic part (42) is of a cylindrical structure, one end of the telescopic part is positioned in the limit sleeve (41), the other end of the telescopic part is connected with the inner wall of one end, connected with the needle cylinder (6), of the locating cylinder (45) through an elastic part (44), four strip-shaped clamping blocks (421) which are uniformly distributed in the circumferential direction and are in one-to-one correspondence with the sliding grooves (411) and are matched with each other are arranged at one end of the telescopic part (42), the clamping blocks (421) respectively extend into the corresponding sliding grooves (411) and are in contact with the corresponding sliding blocks (431), and one end of the clamping blocks (421) deviating from the telescopic part (42) is provided with inclined planes matched with the inclined teeth (413);
the other end of the telescopic piece (42) is coaxially provided with a connecting column, and the connecting column penetrates through an opening at one end of the positioning cylinder (45) connected with the needle cylinder (6) and is fixedly connected with one end of the suture needle (5) far away from the needle head (51);
the other end of pushing piece (43) is pressed under the exogenic action, pushing piece (43) orientation cylinder (6) removes, and drives through slider (431) flexible piece (42) removes to fixture block (421) keep away from one end of flexible piece (42) breaks away from corresponding spout (411), flexible piece (42) are through the spliced pole drive sewing needle (5) are followed axial movement of cylinder (6) to needle (51) stretches into the joint intracavity of spool (3), and is synchronous, elastic component (44) are pressed and are deformed, afterwards, cancel external force, under the elastic force effect, the inclined plane of the skewed tooth of fixture block (421) is followed adjacent joint portion (412) slides, and in order slide into adjacent spout (411), and is kept away from cylinder (6) along spout (411) and remove, thereby drive through the spliced pole sewing needle (5) remove the return.
2. A continuous stapler for laparoscopic suture surgery according to claim 1, wherein: the elastic piece (44) is a spring and is sleeved outside the connecting column.
3. A continuous stapler for laparoscopic suture surgery according to claim 1 or 2, wherein: the two ends of the wire outlet groove (22) respectively extend to the two end parts of the spool base (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810995913.XA CN109044433B (en) | 2018-08-29 | 2018-08-29 | Continuous stitching instrument for laparoscopic stitching operation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810995913.XA CN109044433B (en) | 2018-08-29 | 2018-08-29 | Continuous stitching instrument for laparoscopic stitching operation |
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| CN109044433A CN109044433A (en) | 2018-12-21 |
| CN109044433B true CN109044433B (en) | 2023-10-24 |
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| CN113576569B (en) * | 2021-08-30 | 2024-06-04 | 合肥工业大学 | Electrically-actuated polymer surgical suture needle changing device and needle changing method thereof |
| CN113648005B (en) * | 2021-08-30 | 2023-11-14 | 合肥工业大学 | Acoustic control operation suture equipment |
| CN113598856B (en) * | 2021-09-17 | 2022-07-01 | 马月龙 | Minimally invasive suturing device for laparoscopic surgery |
| CN116236243A (en) * | 2022-12-16 | 2023-06-09 | 南京思脉德医疗科技有限公司 | Vascular stitching instrument |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203468665U (en) * | 2013-09-16 | 2014-03-12 | 姜海洋 | Special automatic peritoneum stitching instrument for laparoscopic surgery |
| CN106137286A (en) * | 2016-08-29 | 2016-11-23 | 南方医科大学南方医院 | A kind of continuous suture instrument of deep tissue coordinating microscope or endoscope to use |
| CN107550529A (en) * | 2017-09-29 | 2018-01-09 | 陕西洁伦医药生物有限公司 | A kind of abdomen wall sewing device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2741713C (en) * | 2008-10-28 | 2017-03-14 | C.R. Bard, Inc. | Endoscopic suturing device with suture management |
| US10143465B2 (en) * | 2016-10-24 | 2018-12-04 | ReViable Surgical, Inc. | Laparoscopic suturing devices, needles, sutures, and drive systems |
-
2018
- 2018-08-29 CN CN201810995913.XA patent/CN109044433B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203468665U (en) * | 2013-09-16 | 2014-03-12 | 姜海洋 | Special automatic peritoneum stitching instrument for laparoscopic surgery |
| CN106137286A (en) * | 2016-08-29 | 2016-11-23 | 南方医科大学南方医院 | A kind of continuous suture instrument of deep tissue coordinating microscope or endoscope to use |
| CN107550529A (en) * | 2017-09-29 | 2018-01-09 | 陕西洁伦医药生物有限公司 | A kind of abdomen wall sewing device |
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