CN109953792B - Handle assembly and anastomat comprising same - Google Patents
Handle assembly and anastomat comprising same Download PDFInfo
- Publication number
- CN109953792B CN109953792B CN201711435644.3A CN201711435644A CN109953792B CN 109953792 B CN109953792 B CN 109953792B CN 201711435644 A CN201711435644 A CN 201711435644A CN 109953792 B CN109953792 B CN 109953792B
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- handle
- slider
- pointer
- link
- sliding block
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- 238000010304 firing Methods 0.000 claims abstract description 22
- 230000014759 maintenance of location Effects 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 abstract description 10
- 230000009471 action Effects 0.000 abstract description 8
- 210000003953 foreskin Anatomy 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 230000003872 anastomosis Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 238000009527 percussion Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 210000001035 gastrointestinal tract Anatomy 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 208000014617 hemorrhoid Diseases 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 206010034878 phimosis Diseases 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure 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, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/1114—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis of the digestive tract, e.g. bowels or oesophagus
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis in a single operation
- A61B17/1155—Circular staplers comprising a plurality of staples
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/326—Circumcision apparatus
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B2017/1132—End-to-end connections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B2017/1135—End-to-side connections, e.g. T- or Y-connections
Abstract
The invention provides a handle assembly and an anastomat comprising the same, wherein the handle assembly comprises a pointer and a connecting rod; the sliding groove and the sliding block are positioned on the second handle, the sliding block can move in the sliding groove, and the second end of the connecting rod is connected with the sliding block; the pointer can drive the sliding block to move from the first section of the sliding groove to the second section of the sliding groove through the connecting rod; when the sliding block is positioned at the first section of the sliding groove, the first handle is not linked with the second handle; when the sliding block is positioned at the second section of the sliding groove, the first handle and the second handle are linked through the sliding block and drive the second handle to move from the safety position to the firing position. The handle assembly is divided into the first handle and the second handle, and only the movement of the second handle can trigger the anastomat to execute cutting and stitching actions; during the use, no matter whether the anastomat reaches the triggerable position or not, a doctor can press the first handle, however, when the anastomat does not reach the triggerable state, the first handle does not drive the second handle, and the anastomat cannot be triggered.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to the technical field of anastomat, and particularly relates to a handle assembly and an anastomat comprising the same.
Background
Digestive tract tumor is one of the diseases of human high incidence, and in the treatment process, a circular tube type anastomat is often used for anastomosing physiological tissues such as digestive tract and the like instead of manual operation of doctors. The circular tube type anastomat is a common surgical instrument, and most of the circular tube type anastomat adopts an axial inner stapling mode, forms end-to-end or end-to-side anastomosis on physiological tissues such as esophagus, stomach, intestinal canal and the like during operation, is accommodated in the anastomat in a astringing way during anastomosis, forms a circular anastomosis opening on the tissues after the completion of percussion, and reconstructs a tissue channel.
In the prior art, the circular tube type anastomat comprises an anastomat body, a handle component movably connected with the anastomat body and a nail anvil component matched with the body. The anastomat body comprises a nail bin assembly arranged at the far end, and the nail bin assembly comprises an annular nail bin and a cutter; and a knob disposed at the proximal end of the body, the knob being rotatable relative to the body. The distal and proximal ends are here the proximal ends with respect to the operator, the ends closer to the operator being the proximal ends, the ends further from the operator, i.e. the ends closer to the surgical site being the distal ends. The nail anvil assembly comprises a nail anvil, a nail anvil cap arranged at the top of the nail anvil, a knife anvil arranged inside the nail anvil and a nail anvil shaft detachably connected with the anastomat body. In the operation process, after tumor tissues are removed by separation, the nail anvil shaft penetrates out of a purse at one end of the tissues and is configured at the far end of the anastomat body, and the knob is rotated, so that the distance between the nail anvil and the nail bin is gradually reduced to reach a proper distance, and then the nail anvil is in a triggerable state, and the handle triggering instrument can be held to complete anastomosis. Along with the continuous development of medical instruments, the circular tube type anastomat is also widely applied to the treatment of hemorrhoids and other diseases.
Meanwhile, in the operation of treating the overlong foreskin and phimosis in the field of urology surgery, another type of circular tube type anastomat, namely a foreskin anastomat, is also appeared. Foreskin staplers are also described in the prior art, which are structurally similar to the circular tubular staplers of the alimentary tract described above, except that a glans cap assembly is fitted with the body. Similarly, the glans cap assembly comprises a nail anvil, a glans cap fixedly connected with the nail anvil, a knife anvil and a center rod detachably connected with the anastomat body. In the operation process, foreskin tissues to be resected are fixed on a glans cap, then a center rod is arranged at the far end of the anastomat body, and a knob is rotated to gradually reduce the distance between the glans cap and a nail bin to a proper distance, so that the glans cap and the nail bin can be in a percussion state, and a handle percussion instrument can be held to complete anastomosis.
With the development of technology, the firing transmission mechanism of the circular tube type anastomat has been improved, and a safety mechanism is added, so that even if a doctor presses a handle when the anastomat does not reach a triggerable state, the handle can not be pressed due to the action of the safety mechanism, thereby avoiding operation failure caused by instrument firing. However, in practice, there are still some drawbacks, such as a poor experience for the doctor, and in addition, if the doctor presses the handle with force, the casing of the stapler may be cracked.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provide a handle assembly and an anastomat comprising the same, wherein a doctor can press a first handle no matter whether the anastomat reaches a cocked position or not, however, when the anastomat does not reach the cocked position, the first handle can not fire the anastomat through a second handle, so that the anastomat damage possibly caused by forcefully pressing the handles can be avoided.
An embodiment of the present invention provides a handle assembly for firing of a stapler, the handle assembly comprising: a pointer movable between a first position region and a second position region, and a link having a first end connected to the pointer; a first handle and a second handle; the sliding groove is positioned on the second handle, the sliding block can move in the sliding groove, and the second end of the connecting rod is connected with the sliding block; when the pointer moves from the first position area to the second position area, the pointer drives the sliding block to move from the first section of the sliding groove to the second section of the sliding groove through the connecting rod; when the sliding block is positioned at the first section of the sliding groove and the first handle rotates along the first direction, the first handle is not in contact with the sliding block, and the second handle is positioned at a safety position; when the sliding block is positioned at the second section of the sliding groove and the first handle rotates along the first direction, the first handle is abutted against the sliding block and drives the second handle to move from the safety position to the firing position.
Optionally, the pointer is connected to the distal end of the pull tab, the proximal end of the pull tab is sleeved on the screw rod, a knob is arranged at the proximal end of the screw rod, the knob is rotated to drive the pull tab to move towards the proximal end of the anastomat, and the pull tab drives the pointer to move from the first position area to the second position area.
Optionally, the first handle is rotatably connected with the second handle through a first pin shaft, and the second handle is rotatably connected with the housing of the anastomat through a second pin shaft.
Optionally, a first torsion spring and a second torsion spring are respectively sleeved on the first pin shaft and the second pin shaft, two ends of the first torsion spring respectively abut against the first handle and the second handle, and two ends of the second torsion spring respectively abut against the second handle and the casing of the anastomat.
Optionally, the sliding block includes a sliding block abutting portion and a connecting rod connecting portion, and the connecting rod connecting portion is connected with the second end of the connecting rod; when the sliding block is positioned at the second section of the sliding groove and the first handle rotates along the first direction, the first handle is abutted against the sliding block abutting part.
Optionally, the connecting rod connecting portion includes connecting rod spacing groove and connecting rod connection boss, the second end of connecting rod inserts the inside of connecting rod spacing groove, just the connecting rod with connecting rod connection boss is connected through the fastener.
Optionally, a pin hole is formed in the connecting rod connecting boss, a connecting pin shaft is arranged in the pin hole in a penetrating mode, and the connecting rod connecting boss are rotatably connected through the connecting pin shaft.
Optionally, the first handle includes the handle conflict face, slider conflict portion includes the slider conflict face, first handle with when the slider is contradicted, the handle conflict face with the parallel laminating of slider conflict face.
Optionally, a pointer link slot is provided on the pointer, the first end of the link is located in the pointer link slot, and the first end of the link is movable in the pointer link slot.
Optionally, a link pointer groove is provided on the first end of the link, the first end of the pointer is located in the link pointer groove, and the first end of the pointer is movable in the link pointer groove.
Optionally, the first handle includes a first cavity having two side walls, and the second handle includes a second cavity having two side walls;
when the sliding block is positioned at the first section of the sliding groove and the first handle rotates along the first direction, the first handle at least partially enters the second cavity; when the sliding block is positioned at the second section of the sliding groove and the first handle rotates along the first direction, the side wall end face of the first handle is abutted against the sliding block so as to prevent the first handle from continuously entering the second cavity.
Optionally, the slider is provided with torsional spring spacing groove, the both ends of first torsional spring are contradicted respectively the internal surface in torsional spring spacing groove with first handle.
Optionally, the sliding block is positioned at the second section of the sliding groove, and the sliding block applies an acting force to the sliding block return spring to enable the sliding block return spring to be in a deformed state; and when the sliding block reset spring is restored to the initial state from the deformed state, the sliding block is driven to move from the second section of the sliding groove to the first section of the sliding groove.
Optionally, the slider reset spring is a slider reset torsion spring, a torsion spring limiting groove is formed in the slider, and two ends of the slider reset torsion spring respectively abut against the inner surface of the torsion spring limiting groove and the first handle.
Optionally, the sliding block further comprises a sliding block abutting part and a connecting rod connecting part, the torsion spring limiting groove is located between the sliding block abutting part and the connecting rod connecting part, and the connecting rod connecting part is connected with the second end of the connecting rod; the sliding block is located at the second section of the sliding groove, and when the first handle rotates along the first direction, the first handle is abutted against the sliding block abutting portion.
The embodiment of the invention also provides an anastomat, which comprises the handle assembly.
The handle assembly and the anastomat comprising the same provided by the invention have the following advantages:
the handle assembly is divided into the first handle and the second handle, and only the movement of the second handle can trigger the anastomat to execute cutting and stitching actions; in the use, no matter whether the anastomat reaches the triggerable position, a doctor can press the first handle, however, when the anastomat does not reach the triggerable position, the first handle can not drive the second handle, and the anastomat can not be triggered, and the doctor can judge the triggering state through operation experience, and only when the anastomat reaches the triggerable position, the movement of the first handle can drive the movement of the second handle, so that the anastomat can be triggered, thereby avoiding the damage to the anastomat possibly caused by forcefully pressing the handle, and improving the use experience of the doctor.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings.
FIG. 1 is a schematic view of a handle assembly for a stapler according to an embodiment of the present invention;
FIG. 2 is a schematic view of a circular tube-type stapler according to an embodiment of the present invention;
figure 3 is a schematic view of the handle assembly of one embodiment of the present invention as applied to a foreskin stapler;
FIG. 4 is a schematic view of a slider according to an embodiment of the present invention;
FIG. 5 is a schematic view of a slider according to an embodiment of the present invention at different positions in a chute;
FIG. 6 is a schematic view of the handle assembly with the pointer in the first position area and the first handle not rotated in accordance with one embodiment of the present invention;
FIG. 7 is a sectional view in the direction A-A of FIG. 6;
FIG. 8 is a schematic view of a first position area of a pointer and a handle assembly when the first handle is rotated;
FIG. 9 is a schematic view of the handle assembly with the pointer in the second position area and the first handle not rotated in accordance with an embodiment of the present invention;
FIG. 10 is a schematic view of the handle assembly when the pointer is in the second position area and the first handle is rotated according to an embodiment of the present invention;
FIG. 11 is a schematic view of a handle assembly with a pointer in a first location area and a first handle not rotated in accordance with another embodiment of the present invention;
FIG. 12 is a schematic view of a handle assembly with a pointer in a first location area and a first handle rotated in accordance with another embodiment of the present invention;
FIG. 13 is a schematic view of a handle assembly with a pointer in a second position area and a first handle not rotated in accordance with another embodiment of the present invention;
FIG. 14 is a schematic view of a handle assembly with a pointer in a second position area and a first handle rotated in accordance with another embodiment of the present invention;
FIG. 15 is a schematic view of the handle assembly of another embodiment of the present invention after the first handle has been fired with the second handle and the pointer reset.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus a repetitive description thereof will be omitted.
In order to achieve the above object, as shown in fig. 1, an embodiment of the present invention provides a handle assembly for firing of a stapler, the present invention segments the handle assembly (a housing of the handle assembly is omitted for clarity in fig. 1) into a first handle 1 and a second handle 2, and the stapler can be fired only when the second handle 2 is rotated, and further provides a pointer 4 and a link 5 for controlling the relative movement of the first handle 1 and the second handle 2. Wherein:
the pointer 4 is provided with a first end 41 and a second end 42, the second end 42 is rotatably fixed on the anastomat shell, the first end 41 can rotate around the second end 42, the first end 41 of the pointer 4 is associated with the distal end of the pull tab, the proximal end of the pull tab is sleeved on the screw rod, and the proximal end of the screw rod is connected with the knob. The knob is rotated, so that the pull tab drives the first end 41 of the pointer to move between the first position area and the second position area, wherein a window is arranged on the anastomat body corresponding to the first position area and the second position area and is used for observing the position of the first end 41 of the pointer in the use process, the first end 41 of the pointer is in a safety state when in the first position area, at the moment, the anastomat cannot fire, and when the first end 41 of the pointer is in the second position area, the anastomat can fire, so that the doctor can be prompted more intuitively, the second position area L corresponding to the triggerable position area on the window is a green area, and the prior art has been disclosed; and the first end 51 of the connecting rod 5 is connected with the pointer 4, and when the first end 41 of the pointer 4 moves between the first position area and the second position area L, the movement of the connecting rod 5 is driven, and the movement is transmitted to the second end 52 of the connecting rod 5.
The first handle 1 comprises a handle abutting part 16, the second handle 2 is provided with a chute 26 and a slide block 3, the slide block 3 can move in the chute 26, and the second end 52 of the connecting rod 5 is connected with the slide block 3; when the first end 41 of the pointer 4 moves from the first position area to the second position area L, the pointer 4 drives the sliding block 3 to move from the first section of the sliding groove 26 to the second section of the sliding groove 26 through the connecting rod 5;
the sliding block 3 is positioned at the first section of the sliding groove 26, when the first handle 1 is held and rotates along the first direction, the handle abutting part 16 is not abutted with the sliding block 3, and the second handle 2 is positioned at the safety position; the sliding block 3 is located at the second section of the sliding groove 26, and when the first handle 1 is held and rotates along the first direction, the handle abutting portion 16 abuts against the sliding block 3, and the handle abutting portion 16 drives the second handle 2 to move from the safety position to the firing position through the sliding block, and the second handle 2 pushes the nail pushing rod to realize the firing anastomat. In this embodiment, the first direction is the direction in which the counterclockwise handle is held as shown in the figure.
It should be noted that the first and second sections of the chute 26 are a relative concept in the present invention and not necessarily the two ends of the chute 26, i.e., the first section of the chute 26 is located to the left of the second section in the view shown in the figures.
The effect of the movement of the first handle 1 on the second handle 2 is different when the first end 41 of the pointer 4 is in the first and second position areas L. When the first end 41 of the pointer 4 is in the first position area, the movement of the first handle 1 does not generate acting force on the second handle 2, and the second handle 2 does not drive the instrument to fire; when the first end 41 of the pointer 4 is in the second position area L, the first handle 1 is held and rotated anticlockwise, so that the second handle 2 is driven to move, and the second handle 2 pushes the nail pushing rod, so that the instrument firing is realized. Thus, by changing the position of the pointer 4, the interlocking relationship of the first handle 1 and the second handle 2 can be controlled. In addition, the position of the pointer 4 also corresponds to the positional relationship between the cartridge assembly and the anvil assembly, and when the first end of the pointer 4 is pulled by the pull tab to move to the second position area L, the anvil assembly approaches the cartridge assembly to achieve a proper firing distance.
In summary, when the stapler is not ready for firing, the first end 41 of the pointer 4 is in the first position region, and at this time, if the surgeon holds the first handle 1, he can easily rotate the first handle 1, but the second handle 2 is not triggered, because at this time, the force for holding the first handle 1 is very small in the empty firing state. The doctor can also know that the current anastomat is in an unfired state through the operation experience, and the shell of the anastomat cannot be broken; when the stapler is ready for firing, the pointer 4 is in the second position area L, and at the moment, the doctor holds the first handle 1, and the movement of the first handle 1 drives the movement of the second handle 2, so that the stapler is driven to fire.
Referring now to fig. 2, a schematic view of a handle assembly for a stapler according to an embodiment of the present invention is shown. One end of the stapler comprises a cartridge assembly 62 and an anvil assembly 63 which cooperate with each other, the other end comprises a knob 61 and a handle assembly, and the second end of the second handle 2 cooperates with a push rod 65. When the stapler meets the firing conditions, the second handle 2 pushes the ejector pin rod 65, and the ejector pin rod 65 can further push the ejector pin sheet and the annular cutter of the stapler to suture and cut the tissue to be operated. The structure of the stapler shown in fig. 2 is only an example, and in practical applications, other types of staplers may also use the handle assembly according to the embodiments of the present invention and achieve the objects of the present invention. For example, as shown in figure 3, the structure of the foreskin stapler body 9 employing the handle assembly is shown. The distal end of foreskin stapler body 9 includes a cartridge assembly 91, and is additionally provided with a glans cap assembly (not shown) that mates with cartridge assembly 91. When the foreskin anastomat is adopted, the second handle 2 is movably connected to one end of the foreskin anastomat, the second end of the second handle 2 is matched with a nail pushing component of the foreskin anastomat, and when the condition that the foreskin anastomat can be triggered is met, the second handle 2 pushes the nail pushing component to trigger the foreskin anastomat.
In this embodiment, the first end 11 of the first handle 1 is a gripping end and the second end 12 of the first handle 1 is rotatably connected to the first end 21 of the second handle 2 by means of the first pin 14. A first torsion spring 15 can be further arranged between the first handle 1 and the second handle 2, and the first torsion spring 15 is sleeved outside the first pin shaft 14. The first torsion spring 15 may be used for automatic reset after the rotation of the first handle 1. Further, the second end 22 of the second handle 2 is rotatably connected to the housing 64 of the stapler via a second pin 24, and a second torsion spring 25 is further provided between the second handle 2 and the housing 64 of the stapler for automatic resetting of the second handle 2 after rotation.
As shown in fig. 4, a schematic structural view of the slider 3 in this embodiment is shown. The slider 3 includes a slider abutting portion 31 and a link connecting portion. The slider 3 is located at the second section of the chute 26, and when the first handle 1 is held and rotated counterclockwise, the handle abutting portion 16 abuts against the slider abutting portion 31. The link connection part may include a link limiting groove 35 and a link connection boss, on which a pin hole 33 is provided, and the second end 52 of the link 5 may be disposed in the link limiting groove 35 and rotatably connected with the link connection boss through a connection pin 34 penetrating the pin hole 33. In practice, the connection between the connecting rod 5 and the slider 3 is not limited to this, and for example, the pin may be replaced by a screw or other fastener, which falls within the scope of the present invention.
The handle conflict portion 16 includes the handle conflict face, and slider conflict portion 31 includes the slider conflict face, and when handle conflict face 16 and slider conflict face 31 conflict, the laminating of handle conflict face and slider conflict face, and the optional slider conflict face that is on a parallel with of handle conflict face, through with both parallel arrangement, can maximize the area of contact between them, keeps the stability of percussion process, but not limited to this in the practical application. The other side surface of the slider abutting portion 31 opposite to the slider abutting surface abuts against the second handle 2, and therefore, when the slider abutting surface abuts against the handle abutting surface, the driving force of the handle abutting portion 16 is transmitted to the second handle 2 through the slider 3.
Further, a torsion spring limiting groove 32 may be further provided in the slider 3, and a first end of the first torsion spring 15 is disposed in the torsion spring limiting groove 32, and a second end of the first torsion spring 15 abuts against the first handle 1. The torsion spring limiting groove 32 may be provided between the slider abutting portion 31 and the link connecting portion. That is, the first torsion spring 15 may be used not only as a return torsion spring of the first handle 1 but also as a return torsion spring of the slider 3. In the normal state of the first torsion spring 15, the slider 3 is located at the first section of the chute 26, when the slider 3 is driven to the second section of the chute 26, the first torsion spring 15 will be deformed, and after the external force applied to the slider 3 is eliminated, the slider will automatically return to the initial position due to the restoring force of the first torsion spring 15.
When the first torsion spring 15 is used as the return torsion spring of the first handle 1 and the slider 3 at the same time, the use of parts can be reduced, so that the structure becomes simpler. However, considering that a larger restoring force is required when the first handle 1 is restored, and only a smaller restoring force is required for the slider 3, it is also possible to provide a slider return spring instead of the first torsion spring 15 as the restoring force of the slider 3, and when the slider 3 is located at the second section of the chute 26, the slider 3 applies a force to the slider return spring to make the slider return spring in a deformed state, and when the slider return spring returns from the deformed state to the initial state, the slider 3 is pushed to return from the second section of the chute 26 to the first section of the chute 26. In this embodiment, the slider return spring is a slider return torsion spring, and a first end and a second end of the slider return torsion spring respectively abut against an inner surface of the torsion spring limiting groove 32 and the first handle 1. In other embodiments, the slider return spring may also be a tension spring, a compression spring, or the like.
As shown in fig. 5, the sliding block 3 of this embodiment is shown in different positions of the chute 26. The sliding block 3 is located at the first section of the sliding groove 26, i.e. at the left side in the drawing, the apparatus is in a safe state, the sliding block 3 will not interfere with the handle abutting portion 16, and the first handle 1 can rotate around the first pin 14 in the counterclockwise direction when being subjected to a small holding force by an operator, and at this time, the second handle 2 will not rotate. When the sliding block 3 is located at the second section of the sliding groove 26, i.e. near the right side in the drawing, the sliding block 3 will interfere with the handle abutting portion 16, and the movement of the first handle 1 will drive the second handle 2 to perform linkage, so that the second handle 2 rotates around the second pin shaft 24 anticlockwise.
The state of the handle assembly in which the first end 41 of the pointer 4 is located in the first position area will be described with reference to fig. 6 to 8. As shown in fig. 6 to 7, the first handle 1 is not gripped by the operator, and therefore, is not rotated. At this time, the pointer 4 drives the slider 3 through the connecting rod 5 to be located at the first section of the chute 26, i.e. at the position near the left side in the drawing, and the slider 3 does not collide with the handle collision portion 16. It should be noted that, in the initial position, the slider 3 is located at a position far from the end of the second section of the chute under the action of the first torsion spring 15 or the slider reset torsion spring. Of course, the first end 41 of the pointer 4 may also limit the initial position of the slider 3.
In this embodiment, the pointer 4 is further provided with a pointer link slot 43 for the yielding movement of the link when the pointer 4 rotates. The first end 51 of the link 5 is located in the pointer link slot 43 and the first end 51 of the link 5 is movable in the pointer link slot 43.
As shown in fig. 8, in this embodiment, the first handle 1 optionally includes a first cavity 13 having two side walls, and the second handle 2 includes a second cavity 23 having two side walls; when the sliding block 3 is located at the first section of the sliding groove 26 and the first handle 1 is held and rotated anticlockwise, the first handle 1 at least partially enters the second cavity 23 because the sliding block 3 does not collide with the handle collision part 16, and the first handle 1 and the second handle 2 are not linked. Thus, the second handle 2 is maintained in the initial secured position. During this process, the surgeon may press the handle, but does not fire the stapler. Because the torsion force of the first torsion spring 15 is much smaller than the firing force, the holding force at this time is only to overcome the force of the first torsion spring 15, and the doctor can also obtain tactile feedback at this time, knowing that the current pointer 4 does not reach the second location area L, and no firing is performed.
The operating state of the handle assembly when the pointer 4 is in the second position area will be described below with reference to fig. 9 to 10. As shown in fig. 9 to 10, as the knob is rotated, the pull tab pulls the first end 41 of the pointer 4 toward the second location area L, the slider 3 is located at the second section of the chute 26, and the first handle 1 is not held.
As shown in fig. 10, since the slider 3 is located at the second section of the slide groove 26, there is interference between the slider 3 and the handle interference portion 16. As the first handle 1 is held and rotated, the handle abutting portion 16 abuts against the slider 3, so that linkage between the first handle 1 and the second handle 2 is realized, that is, the second handle 2 also rotates counterclockwise along with the first handle, and the staple pushing rod 65 is pushed, so that firing of the stapler is realized. In the firing process, the second end 12 of the first handle 1 abuts against the pull tab in the rotating process, so that the pull tab is raised and separated from the pointer 4, and the pointer 4 is reset under the action of the pointer resetting mechanism. After the first handle 1 is released, the first handle 1 is restored to the original state clockwise by the action of the first torsion spring 15, and the second handle 2 is restored to the original safe position clockwise by the action of the second torsion spring 25.
The operation of the handle assembly according to another embodiment of the present invention will be described with reference to fig. 11 to 12. This embodiment differs from the previous embodiment in that no pointer link slot is provided on the pointer 4, but a link pointer slot 53 is provided on the link 5, the first end 41 of the pointer 4 is located in the link pointer slot 53, and the first end 41 of the pointer 4 is movable in the link pointer slot 53.
As shown in fig. 11, the first end 41 of the pointer 4 is located in the first position area, and the first handle 1 is not held. The slider 3 is located at the first section of the chute 26, the slider 3 does not interfere with the handle interference portion 16, and the first handle 1 is not held. As shown in fig. 12, as the first handle 1 rotates, the handle abutting portion 16 does not abut against the slider 3, and the handle abutting portion 16 can enter the second cavity 23, so that the first handle 1 and the second handle 2 do not interlock with each other. Thus, the second handle 2 is maintained in the initial secured position. During this process, the surgeon may press the handle, but does not fire the stapler.
As shown in fig. 13, the pointer 4 is pulled by the pull tab with its first end 41 in the second position area L, and the first handle 1 is not held. The slider 3 is located in the second section of the chute 26, interfering with the handle interference section 16, thanks to the pointer 4 and the link 5. As shown in fig. 14, as the first handle 1 is gripped and rotated, the handle abutting portion 16 abuts against the slider 3, so that linkage between the first handle 1 and the second handle 2 is achieved, that is, the second handle 2 also rotates counterclockwise, and the staple pushing rod 65 is pushed, so that firing of the stapler is achieved. After the firing is completed, the state in which the pointer 4 has been reset and the first handle 1 has not been reset is shown in fig. 15. The resetting process of the pointer 4, the first handle 1 and the second handle 2 is the same as that of the first embodiment, and will not be described in detail here.
The embodiment of the invention also provides a anastomat, which comprises a handle assembly. When the anastomat does not reach the triggerable state, the first handle does not drive the second handle, so that the anastomat is not triggered, a doctor can judge the triggerable state through operation experience, and only when the anastomat reaches the triggerable state, the movement of the first handle drives the movement of the second handle, so that the anastomat is triggered. Therefore, on the basis of avoiding the anastomat from being triggered by mistake, the case of the anastomat is prevented from cracking.
The handle assembly and the anastomat comprising the same provided by the invention have the following advantages:
the handle assembly is divided into the first handle and the second handle, and only the movement of the second handle can trigger the anastomat to execute cutting and stitching actions; in the use, no matter whether the anastomat reaches the triggerable position, a doctor can press the first handle, however, when the anastomat does not reach the triggerable position, the first handle can not drive the second handle, and the anastomat can not be triggered, and the doctor can judge the triggering state through operation experience, and only when the anastomat reaches the triggerable position, the movement of the first handle can drive the movement of the second handle, so that the anastomat can be triggered, thereby avoiding the damage to the anastomat possibly caused by forcefully pressing the handle, and improving the use experience of the doctor.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (16)
1. A handle assembly for firing of a stapler, the handle assembly comprising:
a pointer movable between a first position region and a second position region, and a link having a first end connected to the pointer;
a first handle and a second handle;
the sliding groove is positioned on the second handle, the sliding block can move in the sliding groove, and the second end of the connecting rod is connected with the sliding block; when the pointer moves from the first position area to the second position area, the pointer drives the sliding block to move from the first section of the sliding groove to the second section of the sliding groove through the connecting rod;
when the sliding block is positioned at the first section of the sliding groove and the first handle rotates along the first direction, the first handle is not in contact with the sliding block, and the second handle is positioned at a safety position;
when the sliding block is positioned at the second section of the sliding groove and the first handle rotates along the first direction, the first handle is abutted against the sliding block and drives the second handle to move from the safety position to the firing position.
2. The handle assembly of claim 1, wherein the pointer is connected to a distal end of the pull tab, a proximal end of the pull tab is sleeved on the screw, a knob is disposed at the proximal end of the screw, rotation of the knob drives the pull tab to move toward the proximal end of the stapler, and the pull tab drives the pointer to move from the first location area to the second location area.
3. The handle assembly of claim 1, wherein the first handle is rotatably coupled to the second handle by a first pin and the second handle is rotatably coupled to the housing of the stapler by a second pin.
4. The handle assembly of claim 3, wherein the first pin and the second pin are respectively sleeved with a first torsion spring and a second torsion spring, two ends of the first torsion spring respectively abut against the first handle and the second handle, and two ends of the second torsion spring respectively abut against the second handle and the housing of the anastomat.
5. The handle assembly of claim 1, wherein the slider includes a slider interference portion and a link connection portion, the link connection portion being connected to the second end of the link; when the sliding block is positioned at the second section of the sliding groove and the first handle rotates along the first direction, the first handle is abutted against the sliding block abutting part.
6. The handle assembly of claim 5, wherein the link connection portion includes a link limit groove and a link connection boss, the second end of the link is inserted into the interior of the link limit groove, and the link is connected to the link connection boss by a fastener.
7. The handle assembly of claim 6, wherein the link connection boss is provided with a pin hole through which a connection pin shaft is penetrated, and the link connection boss are rotatably connected by the connection pin shaft.
8. The handle assembly of claim 5, wherein the first handle includes a handle interference surface and the slider interference portion includes a slider interference surface, the handle interference surface being in parallel engagement with the slider interference surface when the first handle is in interference with the slider.
9. The handle assembly of claim 1, wherein the pointer is provided with a pointer link slot, wherein the first end of the link is positioned in the pointer link slot and wherein the first end of the link is movable in the pointer link slot.
10. The handle assembly of claim 1, wherein the first end of the link is provided with a link pointer slot, the first end of the pointer is positioned in the link pointer slot, and the first end of the pointer is movable in the link pointer slot.
11. The handle assembly of claim 1, wherein the first handle comprises a first cavity having two side walls and the second handle comprises a second cavity having two side walls;
when the sliding block is positioned at the first section of the sliding groove and the first handle rotates along the first direction, the first handle at least partially enters the second cavity; when the sliding block is positioned at the second section of the sliding groove and the first handle rotates along the first direction, the side wall end face of the first handle is abutted against the sliding block so as to prevent the first handle from continuously entering the second cavity.
12. The handle assembly of claim 4, wherein the slider is provided with a torsion spring limiting groove, and both ends of the first torsion spring respectively abut against an inner surface of the torsion spring limiting groove and the first handle.
13. The handle assembly of claim 1, further comprising a slider return spring, wherein when the slider is positioned in the second section of the chute, the slider applies a force to the slider return spring causing the slider return spring to be in a deformed state; and when the sliding block reset spring is restored to the initial state from the deformed state, the sliding block is driven to move from the second section of the sliding groove to the first section of the sliding groove.
14. The handle assembly of claim 13, wherein the slider return spring is a slider return torsion spring, a torsion spring limiting groove is formed in the slider, and two ends of the slider return torsion spring respectively abut against an inner surface of the torsion spring limiting groove and the first handle.
15. The handle assembly of claim 14, wherein the slider further comprises a slider interference portion and a link connection portion, the torsion spring retention slot being located between the slider interference portion and the link connection portion, the link connection portion being connected to the second end of the link; the sliding block is located at the second section of the sliding groove, and when the first handle rotates along the first direction, the first handle is abutted against the sliding block abutting portion.
16. A stapler comprising a handle assembly according to any one of claims 1 to 15.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435644.3A CN109953792B (en) | 2017-12-26 | 2017-12-26 | Handle assembly and anastomat comprising same |
| JP2020533575A JP7029536B2 (en) | 2017-12-26 | 2018-12-19 | Handle assembly and stapler containing it |
| US16/957,587 US11364031B2 (en) | 2017-12-26 | 2018-12-19 | Handle assembly and stapler including the same |
| RU2020124400A RU2738212C9 (en) | 2017-12-26 | 2018-12-19 | Assembled handle and a stapler including such a handle |
| PCT/CN2018/121973 WO2019128792A1 (en) | 2017-12-26 | 2018-12-19 | Handle assembly and anastomat comprising same |
| KR1020207019048A KR102403452B1 (en) | 2017-12-26 | 2018-12-19 | Handle assembly and stapler comprising same |
| BR112020012172-0A BR112020012172B1 (en) | 2017-12-26 | 2018-12-19 | LEVER AND STAPLE SET INCLUDING THE SAME |
| CA3085500A CA3085500C (en) | 2017-12-26 | 2018-12-19 | Handle assembly and stapler including the same |
| EP18894614.9A EP3733088A4 (en) | 2017-12-26 | 2018-12-19 | Handle assembly and anastomat comprising same |
| AU2018393359A AU2018393359C1 (en) | 2017-12-26 | 2018-12-19 | Handle assembly and stapler including the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435644.3A CN109953792B (en) | 2017-12-26 | 2017-12-26 | Handle assembly and anastomat comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109953792A CN109953792A (en) | 2019-07-02 |
| CN109953792B true CN109953792B (en) | 2024-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711435644.3A Active CN109953792B (en) | 2017-12-26 | 2017-12-26 | Handle assembly and anastomat comprising same |
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| Country | Link |
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| CN (1) | CN109953792B (en) |
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| CN101991454A (en) * | 2010-12-10 | 2011-03-30 | 苏州天臣国际医疗科技有限公司 | Novel handle component |
| CN103142278A (en) * | 2012-12-28 | 2013-06-12 | 苏州天臣国际医疗科技有限公司 | Circular tube-type anastomat |
| KR20150050884A (en) * | 2013-11-01 | 2015-05-11 | 울산대학교 산학협력단 | Suturing device |
| CN104997541A (en) * | 2015-08-14 | 2015-10-28 | 上海逸思医疗科技有限公司 | One-hand operable surgical instrument and operation method thereof |
| CN206261635U (en) * | 2016-08-25 | 2017-06-20 | 江苏明朗医疗器械科技有限公司 | Single use cast stapler |
| CN107106180A (en) * | 2014-12-11 | 2017-08-29 | 柯惠有限合伙公司 | Stapling apparatus with automatic locking mechanism |
| CN208958209U (en) * | 2017-12-26 | 2019-06-11 | 苏州天臣国际医疗科技有限公司 | Handle assembly and stapler including it |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7364061B2 (en) * | 2003-09-29 | 2008-04-29 | Ethicon Endo-Surgery, Inc. | Surgical stapling instrument incorporating a multistroke firing position indicator and retraction mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101991454A (en) * | 2010-12-10 | 2011-03-30 | 苏州天臣国际医疗科技有限公司 | Novel handle component |
| CN103142278A (en) * | 2012-12-28 | 2013-06-12 | 苏州天臣国际医疗科技有限公司 | Circular tube-type anastomat |
| KR20150050884A (en) * | 2013-11-01 | 2015-05-11 | 울산대학교 산학협력단 | Suturing device |
| CN107106180A (en) * | 2014-12-11 | 2017-08-29 | 柯惠有限合伙公司 | Stapling apparatus with automatic locking mechanism |
| CN104997541A (en) * | 2015-08-14 | 2015-10-28 | 上海逸思医疗科技有限公司 | One-hand operable surgical instrument and operation method thereof |
| CN206261635U (en) * | 2016-08-25 | 2017-06-20 | 江苏明朗医疗器械科技有限公司 | Single use cast stapler |
| CN208958209U (en) * | 2017-12-26 | 2019-06-11 | 苏州天臣国际医疗科技有限公司 | Handle assembly and stapler including it |
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| Publication number | Publication date |
|---|---|
| CN109953792A (en) | 2019-07-02 |
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Address after: 215123 No. 278 Dongping Street, Suzhou Industrial Park, Suzhou City, Jiangsu Province Applicant after: Tianchen International Medical Technology Co.,Ltd. Address before: 215021, 1355 international science and Technology Park, Jinji Lake Avenue, Suzhou Industrial Park, Jiangsu, 3 21A Applicant before: TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. |
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