CN215778329U

CN215778329U - Push knotter

Info

Publication number: CN215778329U
Application number: CN202122212672.7U
Authority: CN
Inventors: 王立轩; 郭庆放; 徐闻龙
Original assignee: Shanghai Kindly Medical Instruments Co ltd
Current assignee: Shanghai Yingtai Medical Equipment Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-02-11
Anticipated expiration: 2031-09-13

Abstract

The utility model provides a push knotter, comprising: the control handle is connected with the traction rod, the traction rod penetrates through the grab handle and the guide groove in a sliding mode, and the control handle controls the traction rod to reciprocate along the guide groove; the guide rod is movably sleeved in the guide rod, the sleeve is movably clamped with the guide groove, and the guide rod is movably connected with the traction rod; the clamping and cutting head assembly comprises a shell, the shell is movably clamped with one end of the guide groove far away from the sleeve, the clamping and cutting head assembly further comprises a push rod, the push rod is movably connected with one section of the guide rod far away from the traction rod, and the clamping and cutting head assembly is used for locking or cutting off a suture line through controlling the reciprocating motion of the push rod. The technical problem that the use efficiency of a knotter in the prior art is relatively low is solved.

Description

Push knotter

Technical Field

The utility model relates to the technical field of medical auxiliary equipment, in particular to a knot pusher.

Background

Knotting is one of the most basic techniques of surgery, and mainly includes locking knotting and suturing knotting. The operation, whether the operation is correct or not, the skill level and the like, not only reflect the basic quality of the operating doctor, but also directly relate to the effect of the operation and even relate to the safety and the danger of patients. Minimally invasive surgery refers to a new technique for performing surgery in a human body through endoscopes such as laparoscopes and thoracoscopes. The minimally invasive surgery has the advantages of small wound, light pain and quick recovery.

Chinese patent application No. 201520456853.6, which discloses a "push knotter", comprising: the sleeve, the push rod can reciprocate in the sleeve, the driving mechanism is hinged with one end of the push rod and is used for driving the push rod to reciprocate in the sleeve, one end of the push cutter is hinged with the push rod and can synchronously move with the push rod in the sleeve, the pressing head seat is provided with a through hole which is convenient for penetrating the chuck and a pressing head, the pressing head seat is fixedly arranged at the front end of the sleeve, the pressing head is hinged at the inner side of the front end of the sleeve, the side wall of the sleeve is provided with a thread guide hole, the suture thread can be sequentially led out of the locker through the chuck and the thread guide hole, the push cutter is slidably arranged at one side of the pressing head away from the pressing head seat and can rotate, so that the pressing head and the pressing head seat are matched to extrude the chuck and lock the suture thread, meanwhile, the push cutter cuts off the suture thread between the chuck and the thread guide hole, although the push knotter has simple use method and reliable performance, the medical instruments used in the surgical operation usually need to sterilize the medical instruments used in the surgical process due to the special environment in the medical operation, particularly, the push knotter is usually used in endoscopic minimally invasive surgery, but the requirement on the sterility of surgical instruments in the endoscopic minimally invasive surgery is more severe, and the push knotter has a relatively long integral structure, cannot be assembled or disassembled, is relatively inconvenient to treat bacteria inside a sleeve, may have potential safety hazards caused by residual bacteria to the surgery if not in place, and has relatively low use efficiency.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a knotter which aims to solve the technical problem that the knotter pushing device in the prior art is relatively low in use efficiency.

According to an embodiment of the present invention, there is provided a push knotter, including:

the device comprises a grab handle, a control handle, a traction rod and a control handle, wherein the grab handle is rotatably installed, one end of the control handle, which is positioned in the grab handle, is rotatably connected with the traction rod, the traction rod is positioned in the grab handle, a guide groove is installed on the grab handle, one end of the traction rod, which is far away from the control handle, sequentially penetrates through the grab handle, the guide groove and external air to be communicated, and the control handle controls the traction rod to reciprocate in the grab handle;

the guide rod is movably sleeved in the guide rod, the sleeve is movably clamped with the guide groove, and the guide rod is movably connected with the traction rod;

the clamping and cutting head assembly comprises a shell, the shell is movably clamped with one end of the guide groove far away from the sleeve, the clamping and cutting head assembly further comprises a push rod, the push rod is movably connected with one section of the guide rod far away from the traction rod, and the clamping and cutting head assembly is used for locking or cutting off a suture line through controlling the reciprocating motion of the push rod.

Further, the said a kind of pushing knotter, the said jaw assembly also includes:

the constant pressure head seat is arranged in the shell and is positioned at one end far away from the push rod;

the movable pressure head seat is arranged in the shell and fixedly connected with the push rod, and is used for abutting against the constant pressure head seat when the push rod moves towards the direction close to the constant pressure head seat so as to lock a suture line between the constant pressure head seat and the movable pressure head seat;

the cutter is arranged in the shell and is rotationally connected with the dynamic pressure head seat, and the cutting edge of the cutter faces the constant pressure head seat;

the resistance wheel is arranged in the shell and positioned on the reverse side of the direction of the cutting edge of the cutter, and the resistance wheel is used for extruding the cutter when the push rod moves towards the direction far away from the constant pressure head seat, so that the cutting edge is abutted against the constant pressure head seat, and a suture line between the constant pressure head seat and the cutter is cut off.

the through hole is formed in one end, far away from the push rod, of the shell and used for enabling a suture to enter the inside of the clamping and cutting head component.

and the wire guide hole is arranged on the side wall of the shell and is positioned between the constant pressure head seat and the dynamic pressure head seat, and the wire guide hole is used for leading a suture line entering the through hole to sequentially pass through the cutting-off part and the locking part and then penetrate out of the clamping and cutting head component.

The technical scheme of the utility model has the following advantages:

according to the push knotter provided by the utility model, the guide rod is connected with the traction rod and the push rod, so that the traction rod, the guide rod and the push rod can be controlled by the control handle to synchronously reciprocate, the push rod can be locked or a suture line can be cut off by the control handle, and further, the smooth completion of knotting is ensured. Can be through carrying out the split with this knot pusher to carry out sterilization treatment to the cutting head subassembly, likewise, the pipe subassembly also can be split into sleeve pipe and guide arm, and then carries out sterilization cleaning treatment to guide arm, sleeve pipe surface and inside. The sterilization efficiency is relatively high, the operation safety is improved, and the use efficiency is relatively high. Secondly because this push away the knotter is detachable, consequently can choose for use the thimble assembly of not length in order to satisfy different operation demands, for example can choose for use relatively shorter small thimble assembly to assemble when carrying out the mirror micro-wound operation to children and push away the knotter, can choose for use relatively longer large thimble assembly to assemble when carrying out mirror micro-wound operation to the high and big patient of similar stature such as NBA sportsman and push away the knotter, it is thus visible, its usability scope of this application pushes away the knotter is wider, availability factor is higher. Likewise, because the push knotter is detachable, different clamping and cutting head assemblies can be selected according to different operation requirements, and the use efficiency is further improved. And to special operation, when its operation instrument demand is disposable use demand, for current disposable knot-tying device that pushes away, this application can only use disposable double-layered cutting head subassembly, and then reduces the wasting of resources, has improved the availability factor.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a knot pusher according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a cutting head assembly of a knot pusher according to an embodiment of the present invention;

fig. 3 is a perspective view of a constant pressure head base according to an embodiment of the present invention;

fig. 4 is a perspective view of a cutter according to an embodiment of the present invention;

fig. 5 is a perspective view of a choke wheel according to an embodiment of the present invention.

Description of reference numerals: 100. a handle; 110. a control handle; 120. a draw bar; 130. a guide groove; 200. a catheter assembly; 210. a sleeve; 220. a guide bar; 300. clamping the cutter head assembly; 310. a housing; 320. a push rod; 330. a constant pressure head seat; 340. a movable press head seat; 350. a cutter; 360. wheel resistance; 370. a through hole; 380. and (4) wire guide holes.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Examples

Referring to fig. 1 to 5, an embodiment of the present application discloses a push knotter, including: the handle 100 is rotatably provided with a control handle 110, one end of the control handle 110, which is positioned inside the handle 100, is rotatably connected with a traction rod 120, the traction rod 120 is positioned inside the handle 100, a guide groove 130 is arranged on the handle 100, one end of the traction rod 120, which is far away from the control handle 110, sequentially penetrates through the handle 100 and the guide groove 130 and is communicated with the outside air in a sliding manner, and the control handle 110 controls the traction rod 120 to reciprocate in the handle 100; the catheter assembly 200 comprises a sleeve 210 and a guide rod 220, the sleeve 210 is matched with the guide rod 220, the sleeve 210 is movably sleeved on the guide rod 220, the sleeve 210 is movably clamped with the guide groove 130, and the guide rod 220 is movably connected with the traction rod 120; the cutting-clamping head assembly 300 comprises a shell 310, the shell 310 and one end, far away from the guide groove 130, of the sleeve 210 are movably clamped, the cutting-clamping head assembly 300 further comprises a push rod 320, the push rod 320 is movably connected with one section, far away from the traction rod 120, of the guide rod 220, and the cutting-clamping head assembly 300 is used for locking or cutting off a suture line by controlling the reciprocating motion of the push rod 320. Preferably, magnets are disposed at both ends of the guide bar 210, at one end of the guide bar 210 connected to the drawbar 120, and at one end of the guide bar connected to the push rod 320.

The draw bar and the push rod are connected through the guide rod, and then the draw bar, the guide rod and the push rod can be controlled by the control handle to synchronously reciprocate, so that the push rod can be locked or a suture line can be cut off through the control handle, and further the knotting can be smoothly finished. Can be through carrying out the split with this knot pusher to carry out sterilization treatment to the cutting head subassembly, likewise, the pipe subassembly also can be split into sleeve pipe and guide arm, and then carries out sterilization cleaning treatment to guide arm, sleeve pipe surface and inside. The sterilization efficiency is relatively high, the operation safety is improved, and the use efficiency is relatively high. Secondly because this push away the knotter is detachable, consequently can choose for use the thimble assembly of not length in order to satisfy different operation demands, for example can choose for use relatively shorter small thimble assembly to assemble when carrying out the mirror micro-wound operation to children and push away the knotter, can choose for use relatively longer large thimble assembly to assemble when carrying out mirror micro-wound operation to the high and big patient of similar stature such as NBA sportsman and push away the knotter, it is thus visible, its usability scope of this application pushes away the knotter is wider, availability factor is higher. Likewise, because the push knotter is detachable, different clamping and cutting head assemblies can be selected according to different operation requirements, and the use efficiency is further improved. And to special operation, when its operation instrument demand is disposable use demand, for current disposable knot-tying device that pushes away, this application can only use disposable double-layered cutting head subassembly, and then reduces the wasting of resources, has improved the availability factor.

Referring to fig. 1-5, the present application discloses a push knotter, the jaw assembly 300 further includes: the constant pressure head seat 330 is disposed inside the housing 310 and located at one end far away from the push rod 320; the movable pressure head seat 340 is arranged inside the housing 310 and fixedly connected with the push rod 320, and the movable pressure head seat 340 is used for abutting against the constant pressure head seat 330 when the push rod 320 moves towards the direction close to the constant pressure head seat 330, so as to lock a suture line between the constant pressure head seat 330 and the movable pressure head seat 340; the cutter 350 is arranged inside the shell 310 and is rotationally connected with the movable pressure head seat 340, and the blade of the cutter 350 faces the fixed pressure head seat 330; the resistance wheel 360 is arranged in the housing 310 and located on the opposite side of the blade of the cutter 350, and the resistance wheel 360 is used for pressing the cutter 350 when the push rod 320 moves away from the constant pressure head seat 330, so that the blade is pressed against the constant pressure head seat 330, and the suture between the constant pressure head seat 330 and the cutter 350 is cut off; a through hole 370 arranged at one end of the housing 310 far away from the push rod 320, wherein the through hole 370 is used for a suture to enter the inside of the jaw assembly 300; and the wire guide hole 380 is arranged on the side wall of the shell 310, the wire guide hole 380 is positioned between the constant pressure head seat 330 and the dynamic pressure head seat 340, and the wire guide hole 380 is used for passing through the suture line entering from the through hole 370 sequentially through a cutting part and a locking part and then out of the clamping and cutting head assembly 300.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. A push knot machine, comprising:

2. The push knotter of claim 1, wherein said cartridge cutter assembly further comprises:

3. The push knotter of claim 2, wherein said cartridge cutter assembly further comprises:

4. The push knotter of claim 1, wherein said cartridge cutter assembly further comprises: