CN116919494B - Suture device - Google Patents
Suture device Download PDFInfo
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- CN116919494B CN116919494B CN202311190557.1A CN202311190557A CN116919494B CN 116919494 B CN116919494 B CN 116919494B CN 202311190557 A CN202311190557 A CN 202311190557A CN 116919494 B CN116919494 B CN 116919494B
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- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000005452 bending Methods 0.000 claims description 45
- 210000000281 joint capsule Anatomy 0.000 claims description 6
- 210000000513 rotator cuff Anatomy 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 4
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 8
- 210000001519 tissue Anatomy 0.000 description 30
- 238000005192 partition Methods 0.000 description 11
- 210000004872 soft tissue Anatomy 0.000 description 10
- 239000012634 fragment Substances 0.000 description 6
- 230000035515 penetration Effects 0.000 description 5
- 210000000845 cartilage Anatomy 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 241000287107 Passer Species 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 244000208734 Pisonia aculeata Species 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002674 endoscopic surgery Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/04—Surgical instruments, devices or methods 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/04—Surgical instruments, devices or methods for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0491—Sewing machines for surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/04—Surgical instruments, devices or methods 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
- A61B2017/047—Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery having at least one proximally pointing needle located at the distal end of the instrument, e.g. for suturing trocar puncture wounds starting from inside the body
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a suture instrument, which belongs to the technical field of medical instruments, and comprises a hollow tube and a capturing component, wherein a handle at the rear part of the hollow tube is provided with a control mechanism for driving and connecting the capturing component, the control mechanism comprises a control button, the control button is provided with a first moving position, a second moving position and a third moving position, and when the control button is positioned at the first moving position, the front end of the capturing component completely extends out of the hollow tube and is in a completely extending state; when the control button is in the second moving position, the front end of the capturing component is positioned at the pipe orifice of the hollow pipe and is extruded by the inner wall of the hollow pipe to form a closed state, and the front end is in a contracted and closed state; when the control button is in the third moving position, the front end of the capturing member is fully retracted into the hollow tube in a fully retracted state. The suture device can realize the functions of threading and operating suture through tissues, and is simple and convenient to operate.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a stitching instrument.
Background
Endoscopic surgery allows the surgeon to reach the surgical site through a small opening, with little trauma and quick postoperative recovery. Surgical procedures requiring repair, suturing of tissue may be accomplished using endoscopes. Because of the relatively limited field of view and space in surgery, suture penetration through tissue and retrieval is challenging.
Currently used suture passers have a loop or hook-like structure in the head and are closed after passing the suture therethrough to pull back the suture. However, these instruments may have only a retrieval function and still require suturing in combination with other tools. Thus, there are some suture passers that combine suture retrieval with threading functions, making the head a pointed end that is easy to pass through soft tissue.
Possible problems with these tools include: capturing the positional characteristics of the suture makes the surgeon difficult to manipulate; excessive head volume results in large lesions when traversing soft tissue; soft tissue is easily captured by mistake and difficult to release, resulting in additional damage. Other problems include complex use, long operating time during surgery, high cost, unreasonable shape and length design, etc.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the suture device which can realize the functions of threading through tissues and operating suture and is simple and convenient to operate.
In order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides a suture instrument, includes hollow tube and sliding connection be in catch component in the hollow tube, the handle has set firmly at the rear portion of hollow tube, be equipped with the drive on the handle and connect catch the control mechanism of component, wherein:
the control mechanism comprises a control button which is connected to the handle in a sliding way, the control button is provided with a first moving position, a second moving position and a third moving position, when the control button is positioned at the first moving position, the front end of the capturing component completely extends out of the hollow tube and is in a completely extending state; when the control button is in the second moving position, the front end of the capturing component is positioned at the pipe orifice of the hollow pipe and is extruded by the inner wall of the hollow pipe to form a closed state, and the capturing component is in a contracted closed state; when the control button is in the third movement position, the front end of the capturing member is fully retracted within the hollow tube in a fully stowed condition.
Further, the hollow tube includes a first straight body portion at the middle and proximal ends and a first curved portion at the distal end, wherein:
the outer diameter of the first bending part is smaller than that of the first straight main body part;
and/or, the front end of the first bending part is a tip.
Further, the first bending portion of the hollow tube includes a straight portion and a bending portion extending forward from the straight portion, wherein:
the bending part deflects to one side only;
or the bending part deflects to one side and then is retracted to a position close to the central line of the hollow pipe.
Further, when used for labral suturing, the angle between the fold and the straight line is 15 ° -45 °;
or, when used for rotator cuff suturing, the angle between the bending part and the straight part is 15-45 degrees, and the left direction or the right direction is offset by 15-45 degrees;
or, when used for joint capsule suturing, the angle between the bending part and the straight part is 45-70 degrees;
alternatively, when used for meniscal suturing, the angle between the fold and straight line is 15 ° -45 °, and the left or right direction is offset by 15 ° -45 °.
Further, the capture member includes a second straight body portion at the medial and proximal ends and a second curved portion at the distal end, wherein:
the second bending part is formed by bending a straight rod;
or, the tail end of the second bending part is S-shaped and is provided with a barb which is bent towards the distal end of the hollow tube;
alternatively, the second curved portion includes a first bifurcated end terminating in a barb and a second bifurcated end for closing the barb, the barb being bent away from the distal end of the hollow tube.
Further, the angle between the second bending part and the second straight main body part is 0-30 degrees, and the left direction or the right direction is offset by 0-45 degrees;
and/or the tail end of the second bending part is a cylindrical straight rod, the diameter of the second bending part is gradually reduced, and a round tail end, a spike shape or a tooth shape are formed;
and/or the capturing member is a memory alloy material having elasticity.
Further, a button mounting hole and a slider mounting hole extending along the length direction are formed in the handle;
the control button comprises a button main body part positioned in the button mounting hole and a button operation part positioned outside the handle;
the control mechanism further comprises a sliding block which is connected in the sliding block mounting hole in a front-back sliding mode and used for increasing the stroke of the control button, the front portion of the sliding block is arranged side by side with the button main body, and the lower end of the button main body is hinged to the sliding block and is in driving connection with the capturing component.
Further, a hinge post is arranged at the lower part of the sliding block, and a hinge hole matched with the hinge post is arranged at the lower end of the button main body part;
and/or the proximal end of the capturing component is provided with a hook, a connecting hole is arranged above the position where the button main body part is hinged with the sliding block, and the hook is inserted into the connecting hole;
and/or a fan-shaped groove is arranged above the hinge joint of the sliding block and the button main body part, and a limiting pin matched with the fan-shaped groove and used for limiting the rotation angle of the control button is arranged on the button main body part.
Further, an arc-shaped groove is formed in the rear of the hinged position of the sliding block and the button main body part, a partition plate is arranged in the arc-shaped groove, an elastic bulge capable of moving in the arc-shaped groove is arranged on the button main body part, and when the control button moves from the first moving position to the second moving position, the elastic bulge passes through the partition plate;
and/or, be equipped with the shell fragment that extends forward above the rear end of slider, the front portion of shell fragment is equipped with the draw-in table, the top of slider mounting hole be equipped with the draw-in groove that the draw-in table cooperatees and is used for preventing the slider back removes, the upper end of button main part is in the rear of button operating portion is equipped with shell fragment pressing part, when control button is in the second removes the position and continue to press control button backward, shell fragment pressing part extrudees the front end of shell fragment makes the shell fragment with the draw-in groove is unlocked, thereby control button promotes the slider back removes.
Further, a button sliding groove extending along the length direction is formed in the handle, the control button comprises a vertical rod portion in the button sliding groove in a sliding connection mode and a cross rod portion located on the outer side of the handle, and the lower end of the vertical rod portion is in driving connection with the capturing component.
Further, a hook is arranged at the proximal end of the capturing component, a connecting hole is arranged at the lower end of the vertical rod part, and the hook is inserted into the connecting hole;
and/or the middle part of the button chute is provided with a bulge;
and/or the cross bar part is in a ridge shape.
The invention has the following beneficial effects:
the suture device provided by the invention has the advantages that the control button is arranged at the first moving position, the capturing member is in the fully-extended state, the suture can be arranged at the front end of the capturing member by moving the suture device and/or the suture, the control button is arranged at the second moving position, the capturing member is in the contracted closed state, the captured suture is fixed at the orifice of the hollow tube by the capturing member, the control button is arranged at the third moving position, the capturing member is in the fully-contained state, the capturing member is retracted into the hollow tube, and the captured suture is fixed in the hollow tube, so that when the hollow tube and the capturing member pierce the tissue or are withdrawn from the pierced tissue, the suture is carried to the other side of the tissue, and the suture is repeatedly captured and released by piercing or not piercing the tissue, so that the purpose of threading the suture through the tissue can be realized, the suture manipulation of the suture can be realized, the operation is simple, the release and the capture of the suture can be completed by a piece of tools, and the tools are not required to be replaced repeatedly.
Drawings
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the stapler of the present invention;
FIG. 2 is an exploded view of the stapler of FIG. 1;
fig. 3 (a) -3 (b) are schematic views of the internal structure of the handle of fig. 1, wherein fig. 3 (a) is a perspective view, and fig. 3 (b) is a front view of fig. 3 (a) (control buttons omitted);
FIG. 4 is a schematic diagram of the control button of FIG. 2;
FIG. 5 is a schematic view of the slider of FIG. 2;
fig. 6 (a) -6 (b) are schematic views of the cooperation structure between the slider shown in fig. 5 and the control button shown in fig. 4 in the first moving position, wherein fig. 6 (a) is a front view, and fig. 6 (b) is a schematic view of fig. 6 (a) with the control button omitted;
fig. 7 (a) -7 (b) are schematic views of the cooperation structure of the slider shown in fig. 5 when the control button shown in fig. 4 is in the second moving position, wherein fig. 7 (a) is a front view, and fig. 7 (b) is a schematic view of fig. 7 (a) with the control button omitted;
FIGS. 8 (a) -8 (b) are enlarged views of the front end of the stapler of FIG. 1, wherein FIG. 8 (a) is a schematic view of the control button in a first moved position and FIG. 8 (b) is a schematic view of the control button in a second moved position;
fig. 9 (a) -9 (b) are enlarged views of the front end of the hollow tube in fig. 1, wherein fig. 9 (a) is a schematic view of a first structural form and fig. 9 (b) is a schematic view of a second structural form;
FIG. 10 is a schematic view showing the overall structure of embodiment 2 of the suture instrument of the present invention;
FIG. 11 is an exploded view of the stapler of FIG. 10;
FIG. 12 is a schematic view of the mating structure of the capture member and control button of FIG. 10;
FIG. 13 is a schematic view of the handle of FIG. 10;
FIGS. 14 (a) -14 (c) are enlarged views of the front end of the stapler of FIG. 10, wherein FIG. 14 (a) is a schematic view of the control button in a first moved position, FIG. 14 (b) is a schematic view of the control button in a second moved position, and FIG. 14 (c) is a schematic view of the control button in a third moved position;
fig. 15 (a) -15 (b) are schematic views of the front end structure of the capturing member in fig. 10, wherein fig. 15 (a) is a front view and fig. 15 (b) is a top view of fig. 15 (a).
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The invention provides a suture instrument, as shown in fig. 1 to 15 (b), comprising a hollow tube 1 and a capturing component 2 slidingly connected in the hollow tube 1, wherein a handle 3 is fixedly arranged at the rear part of the hollow tube 1, and a control mechanism for driving and connecting the capturing component 2 is arranged on the handle 3, wherein:
the control mechanism comprises a control button 4 which is connected on the handle 3 in a sliding way, the control button 4 is provided with a first moving position, a second moving position and a third moving position, when the control button 4 is positioned at the first moving position, the front end of the capturing member 2 is completely extended out of the hollow tube 1 and is in a completely extended state; when the control button 4 is in the second moving position, the front end of the capturing member 2 is positioned at the pipe orifice of the hollow pipe 1 and is pressed by the inner wall of the hollow pipe 1 to form a closure (to pull back the suture line), and is in a contracted closed state; when the control button 4 is in the third movement position, the front end of the catch member 2 is fully retracted within the hollow tube 1 in a fully retracted state.
In operation, the hand-held handle 3 first places the control button 4 in the first movement position (i.e., the forward pushing position), the capturing member 2 is in the fully extended state (see fig. 8 (a) and 14 (a)), the suture 10 is placed at the front end of the capturing member 2 by moving the stapler and/or the suture 10, then places the control button 4 in the second movement position (i.e., the intermediate position), the capturing member 2 is in the contracted closed state (see fig. 8 (b) and 14 (b)), the capturing member 2 secures the captured suture 10 at the orifice of the hollow tube 1, then places the control button 4 in the third movement position (i.e., the retracted position), the capturing member 2 is in the fully retracted state (see fig. 14 (c)), the capturing member 2 is retracted into the hollow tube 1, and secures the captured suture 10 within the hollow tube 1. When the front end of the hollow tube 1 and the front end of the capturing member 2 pierce the tissue to be sutured or are withdrawn from the pierced tissue to be sutured, the suture 10 is carried to the other side of the tissue, and at this time, the control button 4 is placed at the first moving position, and the capturing member 2 releases the captured suture 10, thereby completing one tissue threading operation. The above operations are repeated, with or without piercing the tissue to be sutured, and the suture is repeatedly captured and released until suturing of the tissue to be sutured is completed.
The suture device provided by the invention has the advantages that the control button is arranged at the first moving position, the capturing member is in the fully-extended state, the suture can be arranged at the front end of the capturing member by moving the suture device and/or the suture, the control button is arranged at the second moving position, the capturing member is in the contracted closed state, the captured suture is fixed at the orifice of the hollow tube by the capturing member, the control button is arranged at the third moving position, the capturing member is in the fully-contained state, the capturing member is retracted into the hollow tube, and the captured suture is fixed in the hollow tube, so that when the hollow tube and the capturing member pierce the tissue or are withdrawn from the pierced tissue, the suture is carried to the other side of the tissue, and the suture is repeatedly captured and released by piercing or not piercing the tissue, so that the purpose of threading the suture through the tissue can be realized, the suture manipulation of the suture can be realized, the operation is simple, the release and the capture of the suture can be completed by a piece of tools, and the tools are not required to be replaced repeatedly.
The invention is suitable for endoscope operation, in particular relates to a suture device which is used under an endoscope and can pass suture through tissues, has the function of combining grabbing and suturing, is connected with a control button, moves back and forth in a hollow tube when the control button is pushed to move back and forth, can realize the grabbing/releasing (thread hooking/releasing) of the suture through the position change, and is widely applied to medical scenes needing to transmit and/or retract the suture through tissues, including but not limited to the repair of labrum, rotator cuff, joint capsule, meniscus from outside to inside and the like.
As shown in fig. 2, the hollow tube 1 may include a first straight body portion 11 at a central and proximal end and a first curved portion 12 at a distal (direction indicated by an arrow in fig. 1) end; the outer diameter of the first bending part 12 can be smaller than that of the straight main body part 11, so that the first bending part 12 of the hollow tube 1 is made finer and smaller in size on the premise of ensuring the puncture function and certain strength, the damage of soft tissues is effectively reduced, and the design of the first bending part 12 is not easy to strike surrounding tissues, so that a user can operate comfortably. The front end of the first bending portion 12 may be a tip, specifically may be needle-shaped, so as to facilitate penetration of soft tissue and penetration of tissue. The distal end of the hollow tube 1 can be penetrated out from the other side of the tissue or can be penetrated out from the same side of the tissue.
As shown in fig. 8 (a) -8 (b), the first bent portion 12 of the hollow tube 1 may include a straight portion 121 and a bent portion 122 extending forward from the straight portion 121.
Depending on the bending location 122, the present invention may have the following structural forms:
structural form one: as shown in fig. 9 (a), the bending portion 122 may be deflected to only one side, that is, the linear shape of the linear portion 121 of the first bending portion 12 remains unchanged until being deflected to one side, and may be specifically L-shaped, so as to avoid the tissue.
In this structural form, when used for labrum suturing, the angle α between the bending portion 122 and the straight portion 121 may be 15 ° -45 °, preferably 30 °, so as to facilitate vertically puncturing tissues at the boundary between labrum and cartilage when suturing labrum, avoid damaging cartilage, and improve the puncturing efficiency of suturing;
when used in joint capsule suturing, the angle α between the bending portion 122 and the straight portion 121 may be 45 ° -70 °, preferably 70 °, to facilitate puncturing of the tough joint capsule when suturing the joint capsule.
And the structural form II is as follows: as shown in fig. 9 (b), the bending portion 122 may be deflected to one side and then retracted to a position close to the center line of the hollow tube 1, and may be specifically C-shaped or the like, so as to avoid the tissue.
In this configuration, when used in rotator cuff suturing, the angle α between the bending portion 122 and the straight portion 121 may be 15 ° -45 °, preferably 45 °, and may be offset by 15 ° -45 ° (i.e., β -angle in the drawing), for example, 30 °, in the left or right direction, to facilitate vertical puncturing of soft tissue during rotator cuff suturing, thereby improving the puncturing efficiency of suturing;
when used for meniscal suturing, the angle α between the inflection point 122 and the straight line 121 may be 15 ° -45 °, preferably 45 °, and may be offset left or right by 15 ° -45 ° (i.e., angle β in the figure), such as 30 °, to facilitate vertical penetration of soft tissue during meniscal suturing to enhance the penetration efficiency of the suturing.
In the invention, the bending part 122 of the first bending part 12 of the hollow tube 1 has various bending angles to realize puncture under different conditions, and the angle of the bending part 122 of the first bending part 12 can be adjusted for suturing at different positions to achieve better operation effect.
As shown in fig. 2, the capturing member 2 may comprise a second straight body portion 21 at the middle and proximal ends and a second curved portion 22 at the distal end. Depending on the second bend 22, the invention may have the following configuration:
structural form three (not shown): the second bending portion 22 may be bent from a straight bar.
And the structural form is four: as shown in fig. 8 (a) -8 (b), the end of the second bending portion 22 may be S-shaped and provided with a barb 23 bent toward the distal end of the hollow tube 1 (at this time, the barb 23 may be engaged with the inner wall at the mouth of the hollow tube 1 to form a closure), and the barb 23 is shaped to facilitate grasping of the suture.
And the structural form is five: as shown in fig. 14 (a) -14 (c), the second bending part 22 may be in the shape of a hanging box hook, i.e., includes a first diverging end 221 provided with a barb 223 at its end and a second diverging end 222 for closing the barb 223 (at this time, the second diverging end 222 may be pressed toward the first diverging end 221 by the inner wall at the mouth of the hollow tube 1 to thereby close the barb 223), and the barb 223 is bent back toward the distal end of the hollow tube 1.
In the fifth embodiment, as shown in fig. 15 (a) -15 (b), the angle γ between the second curved portion 22 and the second straight body portion 21 may be 0 ° -30 °, preferably 10 ° -15 °, and may be offset by 0 ° -45 ° (i.e., δ angle in the drawing) in the left or right direction, so as to accommodate more operation space and prevent damage to surrounding soft tissues and cartilage.
In the present invention, the end of the second curved portion 22 of the capturing member 2 may have different treatments: may be a cylindrical straight rod that is consistent with the second straight body portion 21; or gradually reducing the diameter and forming a round tail end; or in the form of a spike to secure the suture 10 in a pierced manner; or toothed to enhance capture of the suture 10. The front end of the second curved portion 22 may be pointed, and in particular may be a sharp and solid needle-shaped for piercing soft tissue. The capturing member 2 may be made of a memory alloy material having elasticity, specifically, nickel-titanium alloy, or other metals, alloys, composite materials, or the like. The suturing device has reasonable overall size and bending angle design, is not easy to strike surrounding tissues when in work, and is comfortable to operate by a user.
To facilitate the implementation of the control mechanism driving the connection capturing member 2 to achieve the three positions of movement of the control button 4 and the three states of the capturing member 2 described above, the present invention may have the following embodiments:
example 1
As shown in fig. 1 to 9 (b), a button mounting hole 31 and a slider mounting hole 32 extending in the longitudinal direction may be provided in the handle 3;
the control button 4 includes a button main body portion 41 located in the button mounting hole 31 and a button operation portion 42 located outside the handle 3;
the control mechanism further comprises a slider 5 which is slidably connected in the slider mounting hole 32 back and forth for increasing the stroke of the control button 4, the front portion of the slider 5 is arranged side by side with the button body 41, and the lower end of the button body 41 is hinged on the slider 5 and is in driving connection with the capturing member 2.
In this embodiment, the control button 4 is pushed forward and backward, the control button 4 rotates/swings forward and backward in the button mounting hole 31, that is, the control button 4 moves in an arc in the button mounting hole 31, the sliding block 5 moves forward or backward in the sliding block mounting hole 32, the curve rotation is changed into linear motion, and the capturing member 2 is directly driven to retract into/extend out of the hollow tube 1, so that the functions of threading and suturing by tissue are realized, and the operation is simple and convenient.
As shown in fig. 4 to 7 (b), the lower portion of the slider 5 may be provided with a hinge post 51, and the lower end of the button body 41 is provided with a hinge hole 43 to be matched with the hinge post 51, so that the lower end of the button body 41 is hinged to the slider 5. It is conceivable that the lower portion of the slider 5 is provided with a hinge hole, and the lower end of the button main body 41 is provided with a hinge post that mates with the hinge hole.
As shown in fig. 2, 7 (a) and 7 (b), the proximal end (rear end) of the catching member 2 may be provided with a hook 24, and the button body 41 is provided with a coupling hole 44 above the hinge with the slider 5, and the hook 24 is inserted into the coupling hole 44 to achieve the lower end driving coupling of the button body 41 to the catching member 2.
As further shown in fig. 4 to 7 (b), the slider 5 may be provided with a fan-shaped groove 52 above the hinge portion with the button body 41, the button body 41 is provided with a stopper pin 45 for restricting the rotation angle of the control button 4 in cooperation with the fan-shaped groove 52, and the fan-shaped groove 52 and the stopper pin 45 cooperate to restrict the rotation angle and the movement range of the control button 4, thereby avoiding excessive forward/backward movement of the catching member 2 and inconvenience to the operation.
The slider 5 may be provided with an arc-shaped groove 53 at the rear of the hinge joint with the button main body 41, a partition 54 is provided in the arc-shaped groove 53 (the partition 54 may be located in the middle of the arc-shaped groove 53 in particular), an elastic protrusion 46 capable of moving in the arc-shaped groove 53 is provided on the button main body 41, and when the control button 4 moves from the first movement position to the second movement position, the elastic protrusion 46 passes over the partition 54, so that the elastic protrusion 46 on the button main body 41 cooperates with the arc-shaped groove 53 on the slider 5 to rotate along the track of the arc-shaped groove 53 during the forward and backward pushing of the control button 4, and when the elastic protrusion 46 approaches the partition 54 and contacts with the partition 54, the elastic protrusion 46 presses against each other, and a feedback of resistance is provided at the position of the partition 54 to alert that the control button 4 has rotated or is about to start rotating, and when the control button 4 reaches or passes over the second movement position, the resistance is released.
It will be appreciated that the resilient protrusions 46, due to their resiliency, can ride over the spacer 54 without impeding the normal rotation of the control button 4. The elastic protrusions 46 may be formed by: the button main body 41 may be provided with a pair of slits 47 whose distal ends are communicated so that an elastic arm 48 is formed between the pair of slits 47, and the distal end surface of the elastic arm 48 is provided with an elastic projection 46. In addition, the right-angled trapezoidal groove and the arc-shaped groove 53 at the front end of the slider 5 are blind holes in the drawing, and are not visible in the view at some angle.
The spring 55 extending forward may be provided above the rear end of the slider 5, the clip 56 may be provided at the front of the spring 55, the clip groove 33 which is engaged with the clip 56 to prevent the slider 5 from moving backward (the clip groove 33 and the clip 56 are engaged, the clip 56 is normally caught in the clip groove 33 to restrict the slider 5 from moving backward), the spring pressing portion 49 is provided at the upper end of the button main body portion 4 at the rear of the button operating portion 42, and when the control button 4 is in the second moving position and the control button 4 is continuously pressed backward, the spring pressing portion 49 presses the front end of the spring 55 to unlock the spring 55 from the clip groove 33 (see fig. 7 (a), and at this time, the slider 5 may move backward in the slider mounting hole 32), so that the control button 4 pushes the slider 5 to move backward to change the capturing member 2 to the fully housed state, and the stroke of the control button 4 is increased. The capturing member 2 in the present embodiment adopts the capturing member 2 of the fourth structural form described above, but other forms of capturing members can be adopted.
In summary, the following may be referred to in the use process of the present embodiment:
initially, the control button 4 is placed at the second moving position, and the front end of the capturing member 2 is positioned at the pipe orifice of the hollow pipe 1 and is in a contracted closed state; in use, the hand-held handle 3 pushes the control button 4 forward, the control button 4 moves in a circular arc forward in the button mounting hole 31 centering around the hinge post 51 of the slider 5, the limit pin 45 and the elastic projection 46 on the button main body 41 of the control button 4 slide in the sector groove 52 and the arc groove 53 of the slider 5, respectively, the elastic projection 46 passes over the partition 54 in the arc groove 53 until the limit pin 45 abuts against the front side wall of the sector groove 52 (see fig. 6 (b)), the control button 4 is placed in the first moving position, the capturing member 2 is in the fully extended state, the suture device and/or the suture 10 can be moved to place the suture 10 at the front end of the capturing member 2, then the control button 4 is pushed backward, the elastic projection 46 contacts the partition 54 in the arc groove 53, a feedback force is provided at the position of the partition 54 to remind the control button 4 of the second movement position, the capturing member 2 is in the contracted closed state, the capturing member 2 fixes the captured suture 10 at the mouth of the hollow tube 1, the limiting pin 45 abuts against the rear side wall of the fan-shaped groove 52 (see fig. 7 (b)), the control button 4 is continuously pushed/pressed backward, the elastic sheet pressing portion 49 of the control button 4 presses the front end of the elastic sheet 55 of the slider 5, the elastic sheet 55 forms the retracted state, the elastic sheet 55 is unlocked from the clamping groove 33 of the slider mounting hole 32, the control button 4 pushes the slider 5 to move backward, the control button 4 is placed in the third movement position, the capturing member 2 is in the fully retracted state, the capturing member 2 is retracted into the hollow tube 1, and the captured suture 10 is fixed in the hollow tube 1.
Example 2
As shown in fig. 10 to 15 (b), the handle 3 may be provided with a button chute 34 extending in the longitudinal direction, and the control button 6 includes a vertical rod portion 61 slidably connected in the button chute 34 and a cross rod portion 62 located outside the handle 3, and the lower end of the vertical rod portion 61 is drivingly connected to the catching member 2.
In the embodiment, the control button 6 directly drives the capturing member 2 to move back and forth, so that the structure is simple and the operation is simple. The capturing member 2 in the present embodiment adopts the capturing member 2 of the fifth structural form described above, but other forms of capturing members can be adopted.
As shown in fig. 11, the proximal end of the capturing member 2 may be provided with a hook 24, and the lower end of the vertical rod portion 61 is provided with a connection hole 63, and the hook 24 is inserted into the connection hole 63 to realize the driving connection of the lower end of the vertical rod portion 61 to the capturing member 2.
As shown in fig. 13, the middle part of the button chute 34 may be provided with a protrusion 35 (specifically, may correspond to the second moving position of the control button 6), so that the control button 6 is pushed backward, the capturing member 2 is in a retracted state, and there is a stop feeling when the vertical rod part 61 of the control button 6 reaches the protrusion 35 position of the button chute 34, the feedback capturing member 2 is retracted a certain distance, and the control button 6 is further retracted by continuing to push backward, and at the same time, the control button chute has a function of preventing the suture 10 from being retracted, and when the soft tissue pull-back suture 10 causes the suture 10 to be played back, the protrusion 35 can prevent the control button 6 from moving forward to a certain extent, thereby preventing the suture 10 from being played back. As shown in fig. 12, the cross bar 62 may have a ridge shape (i.e., a triangle shape) to facilitate pushing the control button 6 back and forth.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (8)
1. The utility model provides a suturing device, includes hollow tube and sliding connection be in catch component in the hollow tube, the handle has set firmly at the rear portion of hollow tube, be equipped with the drive on the handle and connect catch the control mechanism of component, its characterized in that:
the control mechanism comprises a control button which is connected to the handle in a sliding way, the control button is provided with a first moving position, a second moving position and a third moving position, when the control button is positioned at the first moving position, the front end of the capturing component completely extends out of the hollow tube and is in a completely extending state; when the control button is in the second moving position, the front end of the capturing component is positioned at the pipe orifice of the hollow pipe and is extruded by the inner wall of the hollow pipe to form a closed state, and the capturing component is in a contracted closed state; when the control button is in the third moving position, the front end of the capturing member is completely retracted into the hollow tube in a completely retracted state;
a button mounting hole and a slider mounting hole which extend along the length direction are formed in the handle;
the control button comprises a button main body part positioned in the button mounting hole and a button operation part positioned outside the handle;
the control mechanism further comprises a sliding block which is connected in the sliding block mounting hole in a front-back sliding way and used for increasing the stroke of the control button, the front part of the sliding block is arranged side by side with the button main body part, and the lower end of the button main body part is hinged on the sliding block and is in driving connection with the capturing component;
the slider with button main part articulated department rear is equipped with the arc recess, be equipped with the baffle in the arc recess, be equipped with on the button main part can the elastic bulge of moving in the arc recess, when control button is by first shift position moves to the second shift position, the elastic bulge crosses the baffle.
2. The stapler of claim 1, wherein the hollow tube comprises a first straight body portion at a central portion and a proximal end and a first curved portion at a distal end, wherein:
the outer diameter of the first bending part is smaller than that of the first straight main body part;
and/or, the front end of the first bending part is a tip.
3. The stapler of claim 2, wherein the first curved portion of the hollow tube comprises a straight portion and a curved portion extending forward from the straight portion, wherein:
the bending part deflects to one side only;
or the bending part deflects to one side and then is retracted to a position close to the central line of the hollow pipe.
4. The stapler of claim 3, wherein the angle between the fold and straight portion is 15 ° -45 ° when used for labral suturing;
or, when used for rotator cuff suturing, the angle between the bending part and the straight part is 15-45 degrees, and the left direction or the right direction is offset by 15-45 degrees;
or, when used for joint capsule suturing, the angle between the bending part and the straight part is 45-70 degrees;
alternatively, when used for meniscal suturing, the angle between the fold and straight line is 15 ° -45 °, and the left or right direction is offset by 15 ° -45 °.
5. The stapler of claim 1, wherein the capture member comprises a second straight body portion at a middle portion and a proximal end and a second curved portion at a distal end, wherein:
the second bending part is formed by bending a straight rod;
or, the tail end of the second bending part is S-shaped and is provided with a barb which is bent towards the distal end of the hollow tube;
alternatively, the second curved portion includes a first bifurcated end terminating in a barb and a second bifurcated end for closing the barb, the barb being bent away from the distal end of the hollow tube.
6. The stapler of claim 5, wherein an angle between the second curved portion and the second straight body portion is 0 ° -30 °, and is offset in a left or right direction by 0 ° -45 °;
and/or the tail end of the second bending part is a cylindrical straight rod, the diameter of the second bending part is gradually reduced, and a round tail end, a spike shape or a tooth shape are formed;
and/or the capturing member is a memory alloy material having elasticity.
7. The suture device according to claim 1, wherein a hinge post is provided at a lower portion of the slider, and a hinge hole is provided at a lower end of the button body portion to be matched with the hinge post;
and/or the proximal end of the capturing component is provided with a hook, a connecting hole is arranged above the position where the button main body part is hinged with the sliding block, and the hook is inserted into the connecting hole;
and/or a fan-shaped groove is arranged above the hinge joint of the sliding block and the button main body part, and a limiting pin matched with the fan-shaped groove and used for limiting the rotation angle of the control button is arranged on the button main body part.
8. The suture instrument of claim 1, wherein a spring extending forward is provided above a rear end of the slider, a clamping table is provided at a front portion of the spring, a clamping groove is provided above the slider mounting hole, the clamping groove is matched with the clamping table to prevent the slider from moving backward, a spring pressing portion is provided at an upper end of the button body portion at a rear of the button operation portion, and when the control button is at the second moving position and the control button is continuously pressed backward, the spring pressing portion presses a front end of the spring to unlock the spring from the clamping groove, so that the control button pushes the slider to move backward.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311190557.1A CN116919494B (en) | 2023-09-15 | 2023-09-15 | Suture device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311190557.1A CN116919494B (en) | 2023-09-15 | 2023-09-15 | Suture device |
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| CN116919494B true CN116919494B (en) | 2024-01-12 |
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| CN111467085B (en) * | 2020-05-29 | 2024-08-09 | 科瑞迈吉(苏州)医疗科技有限公司 | Wire locker and wire locker implantation device |
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| CN106456155A (en) * | 2014-04-24 | 2017-02-22 | 史密夫和内修有限公司 | Suture passer |
| CN111479515A (en) * | 2017-12-14 | 2020-07-31 | 康曼德公司 | Suture passer device |
| WO2021037943A1 (en) * | 2019-08-26 | 2021-03-04 | Venock Medical Gmbh | Medical apparatus and method for closing an aperture in a tissue |
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| CN116919494A (en) | 2023-10-24 |
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