CN203789974U - Anvil of surgical instrument and surgical instrument - Google Patents
Anvil of surgical instrument and surgical instrument Download PDFInfo
- Publication number
- CN203789974U CN203789974U CN201420153509.5U CN201420153509U CN203789974U CN 203789974 U CN203789974 U CN 203789974U CN 201420153509 U CN201420153509 U CN 201420153509U CN 203789974 U CN203789974 U CN 203789974U
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- anvil
- rod
- pull
- nail anvil
- nail
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- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 238000010304 firing Methods 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 13
- 238000004146 energy storage Methods 0.000 claims description 10
- 244000208734 Pisonia aculeata Species 0.000 claims description 5
- 230000006378 damage Effects 0.000 abstract description 7
- 238000001356 surgical procedure Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 208000027418 Wounds and injury Diseases 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000009958 sewing Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 230000000472 traumatic effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of medical apparatus and discloses an anvil of a surgical instrument and the surgical instrument. The anvil comprises an anvil rod, an anvil cap and an executing mechanism. The anvil cap comprises at least two anvil fans. Each anvil fan is pivoted to the anvil rod and can be folded towards the axis of the anvil rod. The executing mechanism is in transmission connection with the drive mechanism of the surgical instrument. When the executing mechanism actuates, the executing mechanism drives each anvil fan to be folded or spread. The anvil has the advantages that the executing mechanism can drive each anvil fan to be folded towards the axis of the anvil rod, the anvil cap is small in size after the anvil fans are folded, damage to a suture opening when the anvil is taken out through the suture opening is small or damage to tissues when the anvil is placed into a human body is small, and safety of surgeries is increased.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to nail anvil of surgical operation instrument and surgical operation instrument.
Background
When the surgical operation is performed on tissues such as esophagus, stomach and intestinal tract, surgical operation instruments such as a circular stitching instrument are mostly adopted, the stitching instrument can shorten the operation time and improve the operation efficiency.
The circular stitching instrument adopts an axial inward stitching mode in the operation process, and forms a stitching ring in the two sections of tissues, so that body bleeding and the like generated in the operation can be discharged along with contents, and the body tissues are easy to heal after the operation.
The circular stapler comprises a nail anvil with a nail anvil cap and a nail anvil rod and a body with a nail box, wherein the nail anvil cap of the nail anvil is positioned in one tubular tissue to be sutured, and the nail box is positioned in the other tubular tissue to be sutured in the operation process; after the two parts of tissues are sutured, the suturing opening is positioned between the nail anvil cap and the nail box, and the nail anvil needs to be taken out from the suturing opening after the suturing is finished.
When the nail anvil is taken out, the nail anvil cap needs to pass through the sewing opening; however, after the stapler is used for suturing, the diameter of a suturing opening between two parts of tissues is smaller than that of the nail anvil cap, and when the nail anvil cap passes through the suturing opening, the suturing opening is easy to be spread for suturing, suturing is damaged, suturing tissues are damaged, and medical accidents are caused.
In addition, for some procedures, due to the small space of a particular tissue, damage may also be caused to the tissue when the anvil is placed.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide an anvil and a surgical instrument that is less traumatic to the suture opening when being taken out through the suture opening or to the tissue when being put into the suture opening, so as to improve the safety of the operation.
SUMMERY OF THE UTILITY MODEL
The utility model provides a nail anvil and surgical instruments of surgical instruments, this surgical instruments is less to the wound of seam mouthful or when putting into the tissue when taking out nail anvil through the seam mouthful, can improve the security of operation.
In order to achieve the above purpose, the utility model provides the following technical scheme:
an anvil for a surgical instrument, comprising:
an anvil rod;
the nail anvil cap comprises at least two nail anvil fans, and each nail anvil fan is pivoted on the nail anvil rod and can be folded towards the axial lead direction of the nail anvil rod;
and the executing mechanism is in transmission connection with the driving mechanism of the surgical instrument and drives each anvil leaf to fold or unfold when acting.
In the nail anvil of the surgical operation instrument, the executive mechanism can drive each nail anvil fan of the nail anvil cap to fold under the driving of the driving mechanism of the surgical operation instrument, therefore, after the executive mechanism drives each nail anvil fan to unfold, the nail anvil cap is in the unfolding state, the nail anvil is umbrella-shaped at the moment, and the nail anvil cap can be matched with a nail box of the surgical operation instrument to realize cutting and suturing; when the nail anvil needs to be taken out from the sewed suture opening, the execution mechanism controls each nail anvil fan of the nail anvil cap to be folded towards the axial lead direction of the nail anvil rod, so that the nail anvil cap is in a folded state, the diameter of the nail anvil cap is further reduced, the damage of the nail anvil cap to the suture opening is reduced in the process of taking the nail anvil out of the suture opening, and the safety of the operation is improved.
Therefore, the utility model provides a nail anvil is less to sewing up mouthful wound when taking out through sewing up the mouth, can improve the security of operation.
In the nail anvil, the nail anvil fans of the nail anvil cap can be folded when the nail anvil cap of the nail anvil needs to be placed into a tissue, and after the nail anvil is placed into the tissue, the execution device drives the nail anvil fans to unfold to form the umbrella-shaped nail anvil cap, so that the injury to the tissue when the nail anvil rod is placed into the tissue can be reduced, and the safety of the operation is further improved.
Preferably, the anvil fans of the anvil cap comprise at least two first anvil fans and at least two second anvil fans, and the number of the first anvil fans is the same as that of the second anvil fans; after the first nail anvil fan and the second nail anvil fan are unfolded, the first nail anvil fan and the second nail anvil fan are alternately distributed, and after the first nail anvil fan and the second nail anvil fan are folded, the first nail anvil fan is positioned between the second nail anvil fan and the nail anvil rod.
Preferably, the actuator comprises:
the first pull disc and the second pull disc are movably matched with the anvil rod and can move along the length direction of the anvil rod;
the first pull rods are in one-to-one correspondence with the first nail anvil fans, one end of each first pull rod is pivoted to the first pull disc, the other end of each first pull rod is pivoted to the corresponding first nail anvil fan, and when the first pull discs move along the length direction of the nail anvil rods, the first pull rods control the first nail anvil fans to fold or unfold;
and the second pull rods are in one-to-one correspondence with the second nail anvil fans, one end of each second pull rod is pivoted to the second pull disc, the other end of each second pull rod is pivoted to the corresponding second nail anvil fan, and the second pull discs move along the length direction of the nail anvil rods and control the second nail anvil fans to fold or unfold.
Preferably, the anvil rod has a hollow structure to form an inner cavity, and the first pull disc and the second pull disc are both arranged in the inner cavity of the anvil rod; and the side wall of the inner cavity is provided with a slot which is in one-to-one correspondence with the first pull rod and the second pull rod and is used for the first pull rod and the second pull rod to pass through.
Preferably, the side wall of the inner cavity is further provided with a guide groove, the first pull disc is provided with a sliding block in sliding fit with the guide groove, and/or the second pull disc is provided with a sliding block in sliding fit with the guide groove.
Preferably, the first pull disc is positioned on one side of the second pull disc, which is far away from the distal end of the anvil rod, and a central spring is arranged between the first pull disc and the second pull disc; after the first nail anvil fan and the second nail anvil fan are unfolded, the central spring is in a compressed energy storage state.
Preferably, the first and second pull disks are each provided with a through hole, the actuator further comprises a center rod located in the lumen and drivingly connected to a drive mechanism in an operating handle of the surgical instrument, the center rod having a push surface facing a distal end of an anvil rod and a pull surface facing a proximal end of the anvil rod, the center rod extending through the through holes of the first and second pull disks, the first and second pull disks being located between the push surface and the pull surface;
when the central rod moves towards the far end direction of the anvil rod under the driving of the driving mechanism:
the pushing surface of the central rod pushes the first pull disc to move towards the far end direction of the nail anvil rod, so that the first pull disc drives each first nail anvil fan to unfold through the first pull rod; the second pull disc moves towards the far end direction of the nail anvil rod under the thrust action of the central spring, so that the second pull disc drives each second nail anvil fan to unfold through the second pull rod;
when the central rod moves towards the proximal end of the anvil rod under the driving of the driving mechanism:
the first pull disc moves towards the proximal direction of the nail anvil rod under the thrust action of the central spring, so that the first pull disc drives each first nail anvil fan to fold through the first pull rod; the pull-back surface of the central rod pulls the second pull disc to move towards the direction of the proximal end of the anvil rod, so that the second pull disc drives each second anvil sector to fold through the second pull rod.
Preferably, the actuator further comprises:
the spring clamping piece is arranged on the side wall of the inner cavity, and after the first nail anvil fan and the second nail anvil fan are unfolded, the spring clamping piece is matched with the central rod to lock the central rod with the side wall of the inner cavity;
and one end of the release button extends out of the side wall of the inner cavity, the other end of the release button is connected with the spring clamping sheet, the release button is touched when a firing rod of the surgical operation instrument performs a firing action, and the release button further drives the spring clamping sheet to release the locking between the spring clamping sheet pair center rod and the side wall of the anvil rod.
On the other hand, the utility model provides a surgical operation instrument, which comprises a body, a nail box arranged on the body, a driving mechanism arranged on the body and a firing rod arranged on the body; the nail anvil is arranged on the body, and an executing mechanism of the nail anvil is in transmission connection with the driving mechanism.
Preferably, when the actuator comprises the spring catch and the release button, the drive mechanism further comprises:
an opening and closing mechanism mounted on the body;
the transmission rod is relatively fixed with the anvil rod and is in transmission connection with the opening and closing mechanism;
the far end of the spring is connected with the near end of the central rod, the near end of the spring is connected with the far end of the transmission rod, and the spring is in a stretching energy storage state when the nail anvil cap is in an expansion state.
Preferably, the drive mechanism further comprises:
an adjusting knob mounted on the body;
the driving rod is mounted on the anvil rod, the near end of the driving rod is in threaded fit with the adjusting knob, and when the driving rod moves towards the far end of the anvil rod relative to the anvil rod under the driving of the adjusting knob, the far end of the driving rod can abut against the near end of the center rod to drive the center rod to move towards the far end of the anvil rod along the length direction of the anvil rod.
Preferably, the surgical instrument is a circular stapler.
Drawings
FIG. 1 is a schematic view of a deployed structural position of an anvil cap of an anvil in a surgical instrument according to an embodiment of the present invention;
FIG. 2 is a schematic view of a folded nail anvil cap of a nail anvil in a surgical instrument according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the nail anvil cap after the nail anvil cap is unfolded according to the embodiment of the present invention;
FIG. 4 is a schematic view of a folded nail anvil cap in the nail anvil according to the embodiment of the present invention;
FIG. 5 is a cross-sectional view of the nail anvil cap of the nail anvil according to the embodiment of the present invention after being unfolded;
FIG. 6 is a cross-sectional view of the nail anvil cap of the nail anvil provided by the embodiment of the present invention after being folded;
fig. 7 is a cross-sectional view of the anvil according to the embodiment of the present invention after the center rod releases the first pull disk;
fig. 8 is a schematic view of a structure of the nail anvil cap of the nail anvil provided by the embodiment of the present invention cooperating with the central rod, the first pull plate and the second pull plate after being unfolded;
fig. 9a to 9c are schematic views illustrating an adjustment state of the driving device including the driving rod in the surgical instrument according to the embodiment of the present invention.
Reference numerals:
1, an anvil rod 11, an inner cavity 12 and a slot
2, an anvil cap 21, a first anvil fan 22, a second anvil fan
31, a first pull rod 32, a second pull rod 33, a center spring
34, a first pull disc 35, a second pull disc 36, a central rod
361, push surface 362, pull surface 37, release button
38, spring clip 41, firing bar 42, spring
43, drive rod 44, drive rod
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model provides a nail anvil of surgical operation apparatus and a surgical operation apparatus with the nail anvil.
Referring to fig. 1 and 2, fig. 1 is a schematic view of a deployed structural state of an anvil cap of an anvil in a surgical instrument according to an embodiment of the present invention; fig. 2 is a schematic view of a folded nail anvil cap of a nail anvil in a surgical instrument according to an embodiment of the present invention.
In the surgical instrument provided by the embodiment of the utility model, the actuating mechanism in the nail anvil moves under the driving of the driving mechanism of the surgical instrument, when the actuating mechanism moves, each nail anvil fan of the nail anvil cap 2 of the nail anvil can be driven to unfold or fold, and the nail anvil cap 2 of the nail anvil can be matched with the nail box arranged on the surgical instrument body after being unfolded, as shown in fig. 1; the folded state of the nail anvil cap 2 is shown in figure 2, which reduces the diameter of the nail anvil cap 2 of the nail anvil, further reduces the damage to the suture opening caused by the nail anvil cap when the nail anvil is taken out from the suture opening or the tissue when the nail anvil is put in the suture opening, and improves the safety of the surgical instrument during the operation.
For the convenience of describing the working process and working principle of the anvil, the related concepts of the surgical instrument are introduced into the process of describing the anvil in this embodiment, and therefore, the working principle of the surgical instrument having the anvil is not separately described herein.
Wherein, the "proximal end" mentioned in the embodiment of the present invention refers to the end of the surgical instrument close to the operator during the operation, i.e. the end far away from the deployed nail anvil cap 2, as shown in the upper end of the orientation in fig. 1; "distal" means the end of the surgical instrument that is distal from the operator during use, i.e., the end that is proximal to the deployed anvil cap 2, as viewed from the lower end in the orientation shown in FIG. 1.
Please refer to fig. 1-4, wherein fig. 3 is a schematic structural state diagram of the nail anvil cap of the nail anvil according to the embodiment of the present invention after being unfolded; fig. 4 is a schematic view of the folded nail anvil cap in the nail anvil according to the embodiment of the present invention.
As shown in fig. 3 and 4, an anvil of a surgical instrument according to an embodiment of the present invention includes:
an anvil rod 1;
the nail anvil cap 2 comprises at least two nail anvil fans, each nail anvil fan is pivoted on the nail anvil rod 1 and can be folded towards the axial lead direction of the nail anvil rod 1, each nail anvil fan enables the nail anvil cap 2 to be in an unfolded state after being unfolded, the nail anvil is in an umbrella shape, and each nail anvil fan enables the nail anvil cap 2 to be in a folded state after being folded towards the axial lead direction of the nail anvil rod 1;
and the executing mechanism is in transmission connection with a driving mechanism of the surgical operation instrument and drives the nail anvil fan to fold or unfold during action.
The utility model provides an among the nail anvil of surgical instruments, actuating mechanism can drive each nail anvil fan of nail anvil cap 2 and fold or expand under the drive of the actuating mechanism of surgical instruments, so that nail anvil cap 2 changes between fold condition and expansion state, after each nail anvil fan of actuating mechanism drive expandes, nail anvil cap 2 is in expansion state, the nail anvil is umbrella-shaped this moment, nail anvil cap 2 can cooperate with the nail casket of surgical instruments to realize cutting and sewing up, after each nail anvil fan of actuating mechanism drive is folded to the axial lead direction of nail anvil pole 1, nail anvil cap 2 is in fold condition, the diameter is less; therefore, when the nail anvil needs to be taken out from the sutured suture opening or put into the nail anvil, the nail anvil cap 2 is in a folded state, and when the nail anvil is taken out from the suture opening or put into the nail anvil, the damage of the nail anvil cap 2 to the suture opening or tissues is reduced, and the safety of the operation is improved.
Therefore, the nail anvil provided by the utility model can improve the safety of the operation by being less to the suture opening or the tissue wound when being taken out or put in.
In the nail anvil cap 2 provided in the above embodiment, the nail anvil fans may be folded in various ways, for example, in at least two nail anvil fans of the nail anvil cap 2, a part of the nail anvil fans may rotate around the pivot axis between the nail anvil fans and the nail anvil rod 1 toward the proximal end of the nail anvil rod 1 to realize folding, and another part of the nail anvil fans rotates around the pivot axis between the nail anvil fans and the nail anvil rod 1 toward the distal end of the nail anvil rod 1 to realize folding, and finally, folding of the nail anvil cap 2 is realized; and the folding of the nail anvil cap 2 can be realized by rotating and folding the nail anvil cap in the direction of the proximal end of the nail anvil rod 1.
For example, the number of the nail anvil fans of the nail anvil cap 2 may be two, when the folding is performed, one nail anvil fan rotates around the pivot axis between the nail anvil fan and the nail anvil rod 1 to the direction of the proximal end of the nail anvil rod 1 to realize the folding, the other nail anvil fan rotates around the pivot axis between the nail anvil fan and the nail anvil rod 1 to the direction of the distal end of the nail anvil rod 1 to realize the folding, and finally the folding of the nail anvil cap 2 is realized.
The number of the nail anvil fans of the nail anvil cap 2 can be three, when the nail anvil cap is folded, one nail anvil fan rotates around the pivoting shaft between the nail anvil fan and the nail anvil rod 1 to the direction of the near end of the nail anvil rod 1 to realize folding, the other two nail anvil fans rotate around the pivoting shaft between the nail anvil fan and the nail anvil rod 1 to the direction of the far end of the nail anvil rod 1 to realize folding, and finally the folding of the nail anvil cap 2 is realized.
Of course, with continued reference to fig. 3 and 4, the anvil fan provided on the anvil cap 2 may further include at least two first anvil fans 21 and at least two second anvil fans 22, and the number of the first anvil fans 21 is the same as that of the second anvil fans 22; after the first anvil fan 21 and the second anvil fan 22 are unfolded, as shown in fig. 3, the first anvil fan 21 and the second anvil fan 22 are spliced with each other and alternately distributed, and the anvil cap 2 is umbrella-shaped; after each of the first anvil leaf 21 and the second anvil leaf 22 has been folded, the first anvil leaf 21 is located between the second anvil leaf 22 and the anvil bar 1, as shown in fig. 4. Namely, each of the first anvil flap 21 and the second anvil flap 22 is folded toward the same end of the anvil rod 1, which facilitates driving and further simplifies the structure of the actuator.
Preferably, the anvil cap 2 has an anvil fan, wherein:
two first anvil fans 21 and two second anvil fans 22; or,
three first anvil fans 21 and three second anvil fans 22; or,
as shown in fig. 3, the first anvil fan 21 and the second anvil fan 22 are four in number.
Of course, the number of the first anvil fan 21 and the second anvil fan 22 may be other options as long as the normal folding and unfolding of the first anvil fan 21 and the second anvil fan 22 can be ensured.
In the above preferred embodiment, as shown in fig. 3, the width of the first anvil fan 21 along the circumferential direction of the anvil cap 2 is preferably smaller than the width of the first anvil fan 21 along the circumferential direction of the anvil cap 2.
Please refer to fig. 5 and fig. 6 in conjunction with fig. 3, wherein fig. 5 is a cross-sectional view of the anvil cap of the anvil provided by the embodiment of the present invention after being unfolded; fig. 6 is a sectional view after the nail anvil cap in the nail anvil provided by the embodiment of the utility model is folded.
In a preferred embodiment, the actuator in the anvil may comprise:
a first pull plate 34 and a second pull plate 35 movably engaged with the anvil rod 1 and movable in a longitudinal direction of the anvil rod 1;
the first pull rods 31 are in one-to-one correspondence with the first anvil fans 21, one end of each first pull rod 31 is pivoted to a first pull disc 34, the other end of each first pull rod 31 is pivoted to the corresponding first anvil fan 21, and when the first pull discs 34 move along the length direction of the anvil rod 1, the first anvil fans 21 are controlled to be folded or unfolded through the first pull rods 31; when the first pull plate 34 is moved in the direction a relative to the anvil shaft 1 in the state shown in fig. 5, the first anvil flap 21 can be driven to fold by the first pull rod 31; when the first pull plate 34 is moved in the direction b relative to the anvil shaft 1 in the state shown in fig. 6, the first anvil fan 21 can be driven to unfold by the first pull rod 31.
The second pull rods 32 are in one-to-one correspondence with the second anvil fans 22, one end of each second pull rod 32 is pivoted to a second pull disc 35, the other end of each second pull rod 32 is pivoted to the corresponding second anvil fan 22, and when the second pull discs 35 move along the length direction of the anvil rod 1, the second pull rods 32 control the second anvil fans 22 to fold or unfold; when the second pull plate 35 is moved in the direction a relative to the anvil rod 1 in the state shown in fig. 5, the second anvil sash 22 can be driven to fold by the second pull rod 32; when the second pull plate 35 is moved in the direction b relative to the anvil shaft 1 in the state shown in fig. 6, the second anvil fan 22 can be driven to unfold by the second pull rod 32.
When the actuator with the above structure acts specifically, taking the initial state as the state shown in fig. 5, that is, the anvil cap 2 is in the unfolded state as an example, first the first pull disc 34 is driven to move along the direction a relative to the anvil rod 1, and then the first pull disc 34 drives the first anvil sector 21 to fold through the first pull rod 31, and then the second pull disc 35 is driven to move along the direction a relative to the anvil rod 1, and the second pull disc 35 drives the second anvil sector 22 to fold through the second pull rod 32, and after the first anvil sector 21 and the second anvil sector 22 are folded, the state is shown in fig. 6, the first anvil sector 21 is located between the second anvil sector 22 and the anvil rod 1.
Thus, the above-mentioned actuator can drive the folding of the respective first anvil leaf 21 and second anvil leaf 22.
With continued reference to fig. 5, in a preferred embodiment, the anvil shaft 1 has a hollow structure to form an inner cavity 11, the first pull plate 34 and the second pull plate 35 are both disposed in the inner cavity 11 of the anvil shaft 1, and the side wall of the inner cavity 11 is provided with slots 12 corresponding to the first pull rod 31 and the second pull rod 32. Each first pull rod 31 passes through the corresponding slot 12, one end of each first pull rod is pivoted with one first anvil sector 21, and the other end of each first pull rod is pivoted with the first pull disc 34; each second pull rod 32 passes through the corresponding slot 12, and one end of each second pull rod is pivoted with one second anvil sector 22, and the other end of each second pull rod is pivoted with a second pull disc 35.
In addition to the above preferred embodiment, the side wall of the inner cavity 11 of the anvil shaft 1 may be further provided with a guide groove, the first pull plate 34 may be provided with a slider slidably engaged with the guide groove, and/or the second pull plate 35 may be provided with a slider slidably engaged with the guide groove. The lateral wall of the inner cavity 11 of the anvil rod 1 is provided with a guide groove, the first pull disc 34 can be provided with a slide block in sliding fit with the guide groove, the stability of the first pull disc 34 in the inner cavity 11 is improved, the second pull disc 35 can be provided with a slide block in sliding fit with the guide groove, and the stability of the second pull disc 35 in the inner cavity 11 can be improved.
Referring to fig. 5, 6 and 7, fig. 7 is a cross-sectional view of the anvil according to the embodiment of the present invention after the center rod releases the first pull disk.
On the basis of the above-mentioned preferred embodiments, as shown in fig. 5, 6 and 7, in the above-mentioned anvil, the first pull plate 34 of the actuator is located on the side of the second pull plate 35 away from the distal end of the anvil rod 1, a central spring 33 is arranged between the first pull plate 34 and the second pull plate 35, and after the first anvil sector 21 and the second anvil sector 22 are unfolded, the central spring 33 is in a compressed energy storage state, as shown in fig. 5.
In the above preferred embodiment, when the anvil cap 2 of the anvil is in the state shown in fig. 5, the central spring 33 is in a compressed energy storage state, and therefore, when the anvil cap 2 needs to be folded, after the first pull plate 34 is released, the central spring 33 releases the force and extends, so that the first pull plate 34 moves towards the proximal end direction of the anvil rod 1 relative to the second pull plate 35, the first pull plate 34 can move in the inner cavity 11 relative to the anvil rod 1 along the direction a before the second pull plate 35 moves under the pushing of the central spring 33, so that the first anvil fan 21 is folded before the second anvil fan 22, and it is ensured that the first anvil fan 21 is located between the second anvil fan 22 and the anvil rod 1 after the first anvil fan 21 and the second anvil fan 22 are folded, thereby folding the anvil cap 2 is achieved.
Of course, in the above preferred embodiment, when the anvil cap 2 of the anvil is in the state shown in fig. 6, the central spring 33 is also in the compressed energy storage state, so when the anvil cap 2 is unfolded, after the second pull plate 35 is released, the central spring 33 releases the force to extend, the second pull plate 35 is pushed by the central spring 33 to move in the inner cavity 11 relative to the anvil rod 1 along the direction b before the first pull plate 34, so that the second anvil sector 22 is unfolded before the first anvil sector 21, and it is ensured that the first anvil sector 21 can be driven to be unfolded when the first pull plate 34 moves to the distal end of the anvil rod 1 along the direction b, thereby implementing the unfolding of the anvil cap 2.
Please refer to fig. 8 with reference to fig. 1 and fig. 2, wherein fig. 8 is a schematic view of a structure of a central rod, a first pull disc and a second pull disc after a nail anvil cap is unfolded in a nail anvil according to an embodiment of the present invention.
In addition to the above preferred embodiment, the first pull plate 34 and the second pull plate 35 are both provided with through holes, and the axial lines of the through holes provided in the first pull plate 34 and the second pull plate 35 preferably coincide with the axial line of the anvil rod 1; the actuator further comprises a central rod 36 disposed within the lumen 11 and drivingly connected to a drive mechanism in the operating handle of the surgical instrument, the central rod 36 having a push surface 361 facing the distal end of the anvil rod 1 and a pull surface 362 facing the proximal end of the anvil rod 1, the central rod 36 extending through the through-holes of the first and second pull disks 34, 35, the first and second pull disks 34, 35 being disposed between the push surface 361 and the pull surface 362;
when the central rod 36 is driven by the driving mechanism to move towards the proximal direction of the anvil rod 1 so as to drive each first anvil sector 21 and each second anvil sector 22 of the anvil cap 2 to rotate from the unfolded state to the folded state:
the push surface 361 of the central rod 36 moves towards the proximal direction of the anvil rod 1, the central spring 33 releases the force to extend, the first pull disc 34 moves towards the proximal direction of the anvil rod 1 under the thrust of the central spring 33, and the first pull disc 34 drives each first anvil fan 21 to fold before each second anvil fan 22 through each first pull rod 31; when the pull-back surface 362 of the central rod 36 abuts against a surface of the second pull plate 35 departing from the first pull plate 34, the central rod 36 drives the second pull plate 35 to move towards the proximal direction of the anvil rod 1, so that the second pull plate 35 drives each second anvil fan 22 to fold through each second pull rod 32, meanwhile, the first pull plate 34 continues to move towards the proximal direction of the anvil rod 1 under the driving of the central spring 33, and finally, the folding of each first anvil fan 21 and each second anvil fan 22 is realized, so that the first anvil fan 21 is located between the second anvil fan 22 and the anvil rod 1.
When the central rod 36 is driven by the driving mechanism to move towards the far end direction of the anvil rod 1 so as to drive each first anvil sector 21 and each second anvil sector 22 of the anvil cap 2 to rotate from the folded state to the unfolded state:
the pull back surface 362 of the central rod 36 moves towards the distal direction of the anvil rod 1, the central spring 33 releases the force to extend, and the second pull plate 35 moves towards the distal direction of the anvil rod 1 under the thrust of the central spring 33, so that the second pull plate 35 drives each second anvil sector 22 to unfold before each first anvil sector 21 through each second pull rod 32; when the pushing surface 361 of the central rod 36 abuts against the surface of the first pull plate 34 departing from the second pull plate 35, the central rod 36 drives the first pull plate 34 to move towards the distal end of the anvil rod 1, so that the first pull plate 34 drives each first anvil fan 21 to perform unfolding action through each first pull rod 31, meanwhile, the second pull plate 35 continues to move towards the distal end of the anvil rod 1 under the acting force of the central spring 33, finally, the unfolding of each first anvil fan 21 and each second anvil fan 22 is realized, after each first anvil fan 21 and each second anvil fan 22 are unfolded, the pushing surface 361 of the central rod 36 abuts against the surface of the first pull plate 34 departing from the second pull plate 35, a set gap is formed between the pulling surface 362 of the central rod 36 and the surface of the second pull plate 35 departing from the first pull plate 34, and the central spring 33 is in a compressed energy storage state.
Preferably, the central post 36 may have a barbed configuration with the pull-back surface 362 being the side of the barbed configuration facing the push surface.
Referring to fig. 1 and 2, preferably, the actuator further includes:
after the first anvil sector 21 and the second anvil sector 22 are unfolded, the spring clamp 38 cooperates with the central rod 36 to lock the central rod 36 and the side wall of the inner cavity 11, so that the anvil cap 2 of the anvil is locked in the unfolded state;
a release button 37 with one end extending out of the side wall of the inner cavity 11 and the other end connected with the spring clamp 38, when a firing bar 41 of the surgical instrument performs firing action, the release button 37 is triggered, the spring clamp 38 is driven by the release button 37 to release the locking between the central rod 36 and the side wall of the anvil rod 1, so that the central rod 36 can act when a driving mechanism in the surgical instrument is driven, and the driving action of the first anvil sector 21 and the second anvil sector 22 is executed.
On the other hand, the embodiment of the utility model also provides a surgical operation instrument, which comprises a body, a nail box arranged on the body, a driving mechanism arranged on the body and a firing rod 41 arranged on the body; the nail anvil is arranged on the body, and an executing mechanism of the nail anvil is in transmission connection with the driving mechanism.
The surgical instrument drives the executing mechanism of the nail anvil to act through the driving mechanism, and then drives the first nail anvil fan 21 and the second nail anvil fan 22 to fold or unfold, when the first nail anvil fan 21 and the second nail anvil fan 22 are folded, the diameter of the nail anvil cap 2 of the nail anvil is reduced, the wound of the nail anvil cap 2 to the sewing port when the nail anvil is taken out through the sewing port can be reduced, or the wound to the tissue when the nail anvil is put in, and the safety of the surgical instrument during the operation is improved.
Referring to fig. 1 and 2, preferably, when the anvil actuator includes a spring catch 38 and a release button 37, the drive mechanism further includes:
the opening and closing mechanism is arranged on the body; preferably, the opening and closing mechanism can be a tail wing knob which is pivoted on the body, and the pivoting shaft is parallel to the length direction of the anvil rod 1;
a transmission rod 43 which is fixed relatively to the anvil rod 1 and is in transmission connection with the opening and closing mechanism;
and the distal end of the spring 42 is connected with the proximal end of the central rod 36, the proximal end of the spring 42 is connected with the distal end of the transmission rod 43, and the spring 42 is in a tension energy storage state when the anvil cap 2 is in a spreading state.
Referring to fig. 1, 2, 5, 6 and 7, in operation, the central rod 36 is locked with the side wall of the inner cavity 11 by the spring clip 38, and the spring 42 is in a tension energy storage state; the adjusting tail wing knob drives the nail anvil rod 1 to act through the transmission rod 43, so that the part between the nail anvil cap 2 and the nail box of the nail anvil is closed to clamp tissues, then the firing rod 41 is controlled to carry out firing action, so that the part between the nail anvil cap 2 and the nail box is matched to carry out suture cutting on the tissues, the firing rod 41 triggers the release button 37, the spring clamping piece 38 is driven by the release button 37 to release the locking between the central rod 36 and the side wall of the inner cavity 11, the central rod 36 moves towards the direction of the near end of the nail anvil rod 1 under the action of the reset tension of the spring 42, the interference relation between the push surface 361 of the central rod 36 and the first pull plate 34 is released, the pull surface 362 of the central rod 36 is abutted against the surface of the second pull plate 35 departing from the first pull plate 34, and at the moment, the first nail anvil fan 21 and the second nail anvil fan 22 are kept; when the firing bar 41 of the surgical instrument is reset and the stapled tissue is released between the anvil cap 2 and the magazine, the central spring 33 is released to extend, the first pull plate 34 moves in the inner cavity 11 relative to the anvil bar 1 in the proximal direction of the anvil bar 1 before the second pull plate 35 under the pushing of the central spring 33, so that the first anvil flap 21 is folded before the second anvil flap 22, and the central rod 36 moves in the proximal direction of the anvil bar 1 under the action of the resetting force of the spring 42, and the pull-back surface 362 of the central rod 36 drives the second pull plate 35 to move in the inner cavity 11 relative to the anvil bar 1 in the proximal direction of the anvil bar 1, so that the second anvil flap 22 is folded, so that the first anvil flap 21 is located between the second anvil flap 22 and the anvil bar 1 after the first anvil flap 21 and the second anvil flap 22 are folded, and the cap 2 is folded.
Referring to fig. 9a to 9c, more preferably, the driving mechanism further includes:
an adjusting knob mounted on the body;
install in the actuating lever 44 of anvil pole 1, the near-end and the adjust knob screw-thread fit of actuating lever 44, when actuating lever 44 moved to the distal end direction of anvil pole 1 for anvil pole 1 under adjust knob's drive, the distal end of actuating lever 44 can with the counterbalance of center rod 36 to drive center rod 36 and move to the distal end direction of anvil pole 1 along the length direction of anvil pole 1, and then drive first pull plate 34 and second pull plate 35 and move to the distal end direction of anvil pole 1, realize that a first nail anvil fan 21 and second nail anvil fan 22 in the nail anvil cap 2 move to the state of expanding by fold.
As shown in fig. 9a, when the first anvil fan 21 and the second anvil fan 22 in the anvil cap 2 are in a folded state, the distal end of the driving rod 44 can be controlled to abut against the proximal end of the center rod 36 by rotating the adjusting knob, and the adjusting knob is continuously rotated, so that the driving rod 44 continuously moves toward the distal end of the anvil rod 1 relative to the anvil rod 1, and finally the first anvil fan 21 and the second anvil fan 22 of the anvil cap 2 are unfolded, as shown in fig. 9 b; by reversing the rotation of the adjustment knob, the distal end of the drive rod 44 is disengaged from the proximal end of the central rod 36 and reset, as shown in FIG. 9 c. Further, the surgical instrument can drive the anvil cap 2 from the folded state to the unfolded state by the cooperation of the adjusting knob and the driving rod 44.
Of course, the above-mentioned process for implementing the anvil cap 2 from the unfolded state to the folded state is the same as the previous embodiment, and is not described herein again.
Preferably, the surgical instrument is a circular stapler.
It will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (12)
1. An anvil for a surgical instrument, comprising:
an anvil rod;
the nail anvil cap comprises at least two nail anvil fans, and each nail anvil fan is pivoted on the nail anvil rod and can be folded towards the axial lead direction of the nail anvil rod;
and the executing mechanism is in transmission connection with the driving mechanism of the surgical instrument and drives each anvil leaf to fold or unfold when acting.
2. The anvil of claim 1, wherein the anvil flaps of the anvil cap comprise at least two first anvil flaps and at least two second anvil flaps, and the number of the first anvil flaps is the same as the number of the second anvil flaps; after the first nail anvil fan and the second nail anvil fan are unfolded, the first nail anvil fan and the second nail anvil fan are alternately distributed, and after the first nail anvil fan and the second nail anvil fan are folded, the first nail anvil fan is positioned between the second nail anvil fan and the nail anvil rod.
3. The anvil of claim 2, wherein said actuator comprises:
the first pull disc and the second pull disc are movably matched with the anvil rod and can move along the length direction of the anvil rod;
the first pull rods are in one-to-one correspondence with the first nail anvil fans, one end of each first pull rod is pivoted to the first pull disc, the other end of each first pull rod is pivoted to the corresponding first nail anvil fan, and when the first pull discs move along the length direction of the nail anvil rods, the first pull rods control the first nail anvil fans to fold or unfold;
and the second pull rods are in one-to-one correspondence with the second nail anvil fans, one end of each second pull rod is pivoted to the second pull disc, the other end of each second pull rod is pivoted to the corresponding second nail anvil fan, and the second pull discs move along the length direction of the nail anvil rods and control the second nail anvil fans to fold or unfold.
4. The anvil of claim 3 wherein said anvil stem has a hollow configuration to form an internal cavity, said first pull disk and said second pull disk each being disposed within said internal cavity of said anvil stem; and the side wall of the inner cavity is provided with a slot which is in one-to-one correspondence with the first pull rod and the second pull rod and is used for the first pull rod and the second pull rod to pass through.
5. The nail anvil according to claim 4, wherein said side wall of said inner cavity is further provided with a guide slot, said first pull disk is provided with a slide block slidably engaged with said guide slot, and/or said second pull disk is provided with a slide block slidably engaged with said guide slot.
6. The anvil of claim 4 wherein said first pull plate is positioned on a side of said second pull plate distal from said distal end of said anvil stem, and a centering spring is positioned between said first pull plate and said second pull plate; after the first nail anvil fan and the second nail anvil fan are unfolded, the central spring is in a compressed energy storage state.
7. The anvil of claim 6 wherein said first pull plate and said second pull plate each define a through-hole, said actuator further comprising a center rod positioned within said lumen and drivingly connected to a drive mechanism in a handle of said surgical instrument, said center rod having a push surface facing a distal end of an anvil rod and a pull surface facing a proximal end of said anvil rod, said center rod extending through said through-holes of said first pull plate and said second pull plate, said first pull plate and said second pull plate positioned between said push surface and said pull surface;
when the central rod moves towards the far end direction of the anvil rod under the driving of the driving mechanism:
the pushing surface of the central rod pushes the first pull disc to move towards the far end direction of the nail anvil rod, so that the first pull disc drives each first nail anvil fan to unfold through the first pull rod; the second pull disc moves towards the far end direction of the nail anvil rod under the thrust action of the central spring, so that the second pull disc drives each second nail anvil fan to unfold through the second pull rod;
when the central rod moves towards the proximal end of the anvil rod under the driving of the driving mechanism:
the first pull disc moves towards the proximal direction of the nail anvil rod under the thrust action of the central spring, so that the first pull disc drives each first nail anvil fan to fold through the first pull rod; the pull-back surface of the central rod pulls the second pull disc to move towards the direction of the proximal end of the anvil rod, so that the second pull disc drives each second anvil sector to fold through the second pull rod.
8. The anvil of claim 7, wherein said actuator further comprises:
the spring clamping piece is arranged on the side wall of the inner cavity, and after the first nail anvil fan and the second nail anvil fan are unfolded, the spring clamping piece is matched with the central rod to lock the central rod with the side wall of the inner cavity;
and one end of the release button extends out of the side wall of the inner cavity, the other end of the release button is connected with the spring clamping sheet, the release button is touched when a firing rod of the surgical operation instrument performs a firing action, and the release button further drives the spring clamping sheet to release the locking between the spring clamping sheet pair center rod and the side wall of the anvil rod.
9. A surgical instrument comprises a body, a staple box arranged on the body, a driving mechanism arranged on the body, and a firing rod arranged on the body; the nail anvil of any one of claims 1 to 8, wherein the nail anvil is mounted on the body, and an executing mechanism of the nail anvil is in transmission connection with the driving mechanism.
10. The surgical instrument of claim 9, wherein when the actuator mechanism includes the spring catch and release button, the drive mechanism further comprises:
an opening and closing mechanism mounted on the body;
the transmission rod is relatively fixed with the anvil rod and is in transmission connection with the opening and closing mechanism;
the far end of the spring is connected with the near end of the central rod, the near end of the spring is connected with the far end of the transmission rod, and the spring is in a stretching energy storage state when the nail anvil cap is in an expansion state.
11. The surgical instrument of claim 10, wherein the drive mechanism further comprises:
an adjusting knob mounted to the body;
the driving rod is mounted on the anvil rod, the near end of the driving rod is in threaded fit with the adjusting knob, and when the driving rod moves towards the far end of the anvil rod relative to the anvil rod under the driving of the adjusting knob, the far end of the driving rod can abut against the near end of the center rod to drive the center rod to move towards the far end of the anvil rod along the length direction of the anvil rod.
12. A surgical instrument according to any one of claims 9 to 11, wherein the surgical instrument is a circular stapler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420153509.5U CN203789974U (en) | 2014-03-31 | 2014-03-31 | Anvil of surgical instrument and surgical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420153509.5U CN203789974U (en) | 2014-03-31 | 2014-03-31 | Anvil of surgical instrument and surgical instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203789974U true CN203789974U (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420153509.5U Expired - Lifetime CN203789974U (en) | 2014-03-31 | 2014-03-31 | Anvil of surgical instrument and surgical instrument |
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| Country | Link |
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| CN (1) | CN203789974U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104939884A (en) * | 2014-03-31 | 2015-09-30 | 瑞奇外科器械(中国)有限公司 | Surgical instrument and nail anvil thereof |
| WO2018002134A3 (en) * | 2016-06-29 | 2018-06-07 | Norwegian University Of Science And Technology (Ntnu) | Surgical stapler, anvil for a surgical stapler, and a method of stapling tissue |
| CN110974330A (en) * | 2019-12-09 | 2020-04-10 | 杭州市第一人民医院 | Nail anvil seat of folding tubular anastomat placed through oral cavity |
-
2014
- 2014-03-31 CN CN201420153509.5U patent/CN203789974U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104939884A (en) * | 2014-03-31 | 2015-09-30 | 瑞奇外科器械(中国)有限公司 | Surgical instrument and nail anvil thereof |
| CN104939884B (en) * | 2014-03-31 | 2017-06-23 | 瑞奇外科器械(中国)有限公司 | The nail anvil and surgical operating instrument of a kind of surgical operating instrument |
| WO2018002134A3 (en) * | 2016-06-29 | 2018-06-07 | Norwegian University Of Science And Technology (Ntnu) | Surgical stapler, anvil for a surgical stapler, and a method of stapling tissue |
| JP2019520921A (en) * | 2016-06-29 | 2019-07-25 | ノルウェージャン ユニバーシティ オブ サイエンス アンド テクノロジー（エヌティーエヌユー） | Surgical stapler, anvil for surgical stapler, and method for securing living tissue with staples |
| US10695067B2 (en) | 2016-06-29 | 2020-06-30 | Norwegian University Of Science And Technology (Ntnu) | Surgical stapler, anvil for a surgical stapler, and a method of stapling tissue |
| US11413044B2 (en) | 2016-06-29 | 2022-08-16 | Norwegian University Of Science And Technology (Ntnu) | Surgical stapler, anvil for a surgical stapler, and a method of stapling tissue |
| CN110974330A (en) * | 2019-12-09 | 2020-04-10 | 杭州市第一人民医院 | Nail anvil seat of folding tubular anastomat placed through oral cavity |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 300457 Tianjin Binhai New Area Economic and Technological Development Zone, Fourth Street, No. 5, block B, floor 4 Patentee after: REACH SURGICAL Inc. Address before: 300457 Tianjin Binhai New Area Economic and Technological Development Zone, Fourth Street, No. 5, block B, floor 4 Patentee before: REACH SURGICAL, Inc. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200526 Address after: 300457 No.120 Xinxing Road, West District, Binhai New Area Development Zone, Tianjin Co-patentee after: Tianjin Huanyi Sterilization Technology Co.,Ltd. Patentee after: REACH SURGICAL Inc. Address before: 300457, Tianjin Binhai New Area Economic and Technological Development Zone fourth 5 Avenue, block B, 4 Patentee before: REACH SURGICAL Inc. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |