CN214387566U - Mis-excitation prevention endoscope anastomat - Google Patents
Mis-excitation prevention endoscope anastomat Download PDFInfo
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- CN214387566U CN214387566U CN202023086709.8U CN202023086709U CN214387566U CN 214387566 U CN214387566 U CN 214387566U CN 202023086709 U CN202023086709 U CN 202023086709U CN 214387566 U CN214387566 U CN 214387566U
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- cutting knife
- nail
- pushing block
- nail bin
- hanging table
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Abstract
The utility model discloses a false excitation prevention endoscope anastomat, wherein a hanging platform with a width mutation is formed on a nail bin seat; the nail bin is provided with a nail pushing block, the near end of the nail pushing block is provided with a guide inclined plane, the guide inclined plane is closer to the near end relative to the hanging table, and the nail pushing block cannot return to the near end after being excited; the cutting knife arranged on the steering joint can move along the length direction, and the cutting knife is opposite to the hanging table when moving towards the far end; when the nail bin finishes the excitation process, the nail pushing block cannot retreat to the near end, so that the cutting knife is contacted with the hanging table when moving to the far end again, and the hanging table blocks the movement of the cutting knife and cannot excite; similarly, when no nail bin is arranged in the nail bin seat, the cutter pushing block does not exist, the cutter is contacted with the hanging table when moving to the far end, and the hanging table blocks the cutter to move.
Description
Technical Field
The utility model relates to the technical field of medical equipment, further relate to a prevent mistake and arouse chamber mirror anastomat.
Background
The anastomat is a main medical device used in medicine to replace the traditional manual suture, and has the advantages of convenient use, quick suture, tight suture, moderate tightness, and few side effects and surgical complications. At present, the endoscopic anastomat is commonly applied to the reconstruction of stomach, colorectal and the like in minimally invasive surgery.
One minimally invasive surgery needs to be sewn for multiple times, and in order to reduce cost and lighten the burden of a patient, the endoscope anastomat adopts a scheme that a nail bin is replaced by one instrument for multiple times; in order to increase the use safety of the endoscopic stapler with the nail bin replaced for many times, an empty nail bin protection device must be arranged, so that the endoscopic stapler can be excited only after a new nail bin is installed, cannot be excited when the nail bin is not installed, and cannot be excited again after the nail bin is excited, thereby avoiding medical accidents caused by the fact that the nail bin is not installed or the nail bin which is fired is not replaced due to negligence of doctors.
For those skilled in the art, how to reliably and stably prevent the stapler from being erroneously actuated is a technical problem to be solved at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a prevent mistake and arouse chamber mirror anastomat can avoid installing nail storehouse and nail storehouse not already by wrong excitation under the condition of arousing, prevents to take place the medical accident, and concrete scheme is as follows:
an anti-false excitation endoscope anastomat comprises a steering joint, a nail bin seat and a nail anvil, wherein the nail bin seat is installed on the steering joint, and the nail anvil is hinged to the steering joint; the nail bin seat is detachably provided with a nail bin;
a guide channel is arranged on the magazine seat along the length direction, the width of the proximal part of the guide channel is larger than that of the distal part, and a hanging table with an abrupt change in width is formed on one side of the guide channel;
the nail bin is provided with a nail pushing block used for exciting suturing nails, the near end of the nail pushing block is provided with a guide inclined plane, the guide inclined plane is closer to the near end relative to the hanging table, and the nail pushing block can only move from the near end to the far end;
the steering joint is provided with a cutting knife which can move along the length direction, the cutting knife is opposite to the hanging table when moving to the far end, when the far end of the cutting knife is contacted with the guide inclined plane, the cutting knife is enabled to deviate towards the narrow part of the width of the guide channel, and the cutting knife continues to move to the far end to push the nail pushing block to move forwards to complete excitation.
Optionally, an elastic side pushing member is arranged on the steering joint, and when the cutting knife passes through the elastic side pushing member, the elastic side pushing member applies a lateral elastic force perpendicular to the moving direction to the cutting knife, so that the cutting knife is biased to move towards the hanging table.
Optionally, the elastic side pushing member comprises a spring and an ejector ball, the spring applies elastic force to the ejector ball, and the ejector ball is in contact with the cutting knife.
Optionally, the guide channel is a strip-shaped hole formed in the magazine base;
the surface of the nail pushing block is convexly provided with a limiting block, and the limiting block can be inserted into the narrow section of the guide channel to move in a guiding manner.
Optionally, the cutting knife is guided by the guide inclined plane to deflect and finally abuts against the limiting block.
Optionally, the cutting knife comprises a cutting head and a push blade, and the push blade is fixed at the proximal end of the cutting head; the part of the cutter head, which is contacted with the nail pushing block, is far relative to the cutter edge.
The utility model provides a false-excitation-prevention endoscope anastomat, a nail bin base is arranged on a steering joint, and a nail anvil is hinged on the steering joint; the width of the proximal part of the guide channel arranged on the nail bin seat along the length direction is larger than that of the distal part, so that a hanging table with sudden change of width is formed; the nail bin is provided with a nail pushing block, the near end of the nail pushing block is provided with a guide inclined plane, the guide inclined plane is closer to the near end relative to the hanging table, when the nail pushing block moves from the near end to the far end, a suturing nail is excited, and the nail pushing block cannot return to the near end after excitation; the cutting knife arranged on the steering joint can move along the length direction, and the cutting knife is opposite to the hanging table when moving towards the far end; when the nail bin finishes the excitation process, the nail pushing block cannot retreat to the near end, so that the cutting knife is contacted with the hanging table when moving to the far end again, and the hanging table blocks the movement of the cutting knife and cannot excite; similarly, when no nail bin is arranged in the nail bin seat, the cutter pushing block does not exist, the cutter is contacted with the hanging table when moving to the far end, and the hanging table blocks the cutter to move.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a partial structure front view of a distal portion of a mis-excitation prevention endoscopic stapler provided by the present invention;
FIG. 2A is a schematic view of the structure of the staple cartridge holder;
FIG. 2B is a schematic structural view of the nail pushing block;
fig. 2C and 2D are front and top views, respectively, of the cutting blade;
fig. 3 is a schematic diagram of the endoscopic stapler with false excitation prevention according to the present invention;
FIG. 4A is a schematic view of the cutting blade not in contact with the elastic side pushing member;
FIG. 4B is a schematic view of the cutting blade in contact with the resilient side pushing member;
fig. 4C is a schematic view of the cutting blade returning back over the guide ramp.
The figure includes:
the cutting device comprises a steering joint 1, a cutting knife 11, a knife head 111, a push knife blade 112, an elastic side push piece 12, a spring 121, a top bead 122, a nail bin seat 2, a guide channel 21, a hanging table 22, a nail anvil 3, a nail bin 4, a nail pushing block 41, a guide inclined plane 42 and a limiting block 43.
Detailed Description
The core of the utility model is to provide a prevent mistake and arouse chamber mirror anastomat can avoid being installed the excitation by the mistake under the condition that nail storehouse and nail storehouse have been aroused, prevents to take place the medical accident.
In order to make those skilled in the art better understand the technical solution of the present invention, the detailed description will be made below on the mis-excitation prevention endoscopic stapler of the present invention with reference to the accompanying drawings and the specific embodiments.
As shown in fig. 1, the utility model provides a partial structure front view of the distal end portion of the mis-excitation prevention endoscopic stapler; when the anastomat is held by a medical staff in operation, the far end referred to herein is the side far away from the hand, and the near end is the side close to the hand.
The utility model discloses a prevent mistake and arouse chamber mirror anastomat turns to joint 1, nail storehouse seat 2 and nail anvil 3 including turning to, turns to joint 1 and is used for being connected with the body of rod of anastomat, can rotate for the body of rod, drives nail storehouse seat 2 and nail anvil 3 synchronous rotations when turning to joint 1 and rotating. The nail bin seat 2 is arranged on the steering joint 1, the nail bin seat 2 is usually relatively and fixedly connected with the steering joint 1, the nail anvil 3 is hinged on the steering joint 1, and the nail anvil 3 and the nail bin seat 2 can be relatively opened and closed.
The nail bin seat 2 is detachably provided with a nail bin 4, the nail bin 4 is provided with suturing nails, and the suturing nails are pressed out of suturing tissues when the nail bin 4 is excited.
The nail bin seat 2 is provided with a guide channel 21 along the length direction, wherein the length direction is the direction along the connecting line of the near end and the far end; as shown in fig. 2A, which is a schematic structural view of the staple cartridge holder 2, the width of the proximal portion of the guide channel 21 is greater than the width of the distal portion, the proximal portion is located on the right side in fig. 2A, the width of the upper right of the guide channel 21 is greater than the width of the lower left of the guide channel, a hanging platform 22 with an abrupt change in width is formed on one side of the guide channel 21, the hanging platform 22 is located at the intersection of different positions of the width of the guide channel 21, a right-angled hanging platform 22 is formed due to the abrupt change in width, and the hanging platform 22 plays a key role in preventing false triggering.
A staple pusher 41 for firing the staples is arranged on the cartridge 4, the staple pusher 41 being part of the cartridge 4, the staple pusher 41 being distally movable relative to the body portion of the cartridge 4. As shown in fig. 2B, which is a schematic structural diagram of the nail pushing block 41, the right side is a proximal end, the left side is a distal end, the proximal end of the nail pushing block 41 is provided with the guiding inclined surface 42, since the hanging table 22 is only required to be arranged on one side of the guiding channel 21, only one guiding inclined surface 42 is required to be arranged, and two guiding inclined surfaces 42 are symmetrically arranged in fig. 2B, and only one guiding inclined surface plays a role during operation.
The two guiding slopes 42 in fig. 2B are flared, the guiding slopes 42 are closer to the proximal end than the hanging platform 22, and the nail pushing block 41 can only move from the proximal end to the distal end;
the steering joint 1 is provided with a cutting knife 11, as shown in fig. 2C and fig. 2D, which are respectively a front view and a top view of the cutting knife 11; the cutting knife 11 can move along the length direction, the cutting knife 11 has the effect that the nail anvil 3 and the nail bin seat 2 are mutually closed, the cutting knife 11 can also push the nail pushing block 41 to move to complete the excitation of the nail bin, and tissues can be cut when the cutting knife 11 moves to the far end.
When the distal end of the cutting blade 11 contacts the guide ramp 42, the cutting blade 11 is deflected toward the narrower portion of the guide channel 21, and continued distal movement pushes the staple pusher 41 forward to complete firing. As shown in fig. 3, is a schematic diagram of the principle of the mis-excitation prevention endoscopic stapler of the present invention, which is equivalent to a view in a top view direction; the cutting knife 11 is just right to the hanging table 22 when moving to the far end, if there is not the ejector pin piece 41, can't continue to move to the far end when the cutting knife 11 contacts the hanging table 22, because the direction inclined plane 42 is closer to the near end for the hanging table 22, that is, the direction inclined plane 42 is closer to the left for the hanging table 22 in fig. 3, when the cutting knife 11 moves to the far end of the right side, contact with the direction inclined plane 42 first, the direction inclined plane 42 plays the effect of direction, make the cutting knife 11 skew in the guide passage 21, that is, the far end of the cutting knife 11 deflects to the top in fig. 3, the cutting knife 11 can not contact with the hanging table 22, the cutting knife 11 and the ejector pin piece 41 move to the far end jointly, in this process, the cutting knife 11 crosses the hanging table 22 and stretches to the narrower part of the far end of the guide passage 21, can normally accomplish and arouse.
After the nail bin 4 finishes once stimulating, the nail pushing block 41 is left at the far end and cannot retreat, the cutting knife 11 can move backwards, the cutting knife 11 is made to move towards the far end again under the condition of not being replaced, the cutting knife 11 can contact the hanging table 22, the blocking of the hanging table 22 cannot move towards the far end continuously, and the stimulating process cannot be realized.
When no nail bin is placed in the nail bin seat 2, similarly, due to the absence of the nail pushing block 41, the cutting knife 11 will contact the hanging table 22 when moving towards the far end, and cannot move continuously towards the far end due to the blocking of the hanging table 22, and the excitation process cannot be realized.
Adopt the utility model provides a prevent mistake and arouse chamber mirror anastomat only installs nail storehouse 4 in nail storehouse seat 2 to nail storehouse 4 can not accomplish under the condition of being used and arouse, the unable normal operating of other condition homoenergetic, consequently prevent the maloperation effectively, fundamentally stops the condition appearance of this type of medical accident.
On the basis of the above technical scheme, the utility model discloses provide further scheme here, turn to and set up elasticity side pushing away piece 12 on the joint 1, when cutting knife 11 through elasticity side pushing away piece 12 time, elasticity side pushing away piece 12 applys the side direction elasticity of perpendicular to moving direction to cutting knife 11, makes cutting knife 11 biasing move towards hanging platform 22. As shown in fig. 4A, it is a schematic view of the cutting blade 11 not contacting the elastic side pushing member 12; FIG. 4B is a schematic view of the cutting blade 11 contacting the elastic side pushing member 12; FIG. 4C is a schematic view of the cutting blade 11 returning to its original position after passing over the guide bevel 42; the above three views are all views in the top view direction.
In this embodiment, the cutting knife 11 is just to the narrower part of the distal end of the guide channel 21 when the initial position, and when the cutting knife 11 contacts with the elastic side pushing piece 12, the cutting knife 11 is pushed by the elastic force, and the cutting knife 11 deflects to the side where the hanging table 22 is located, and contacts with the side wall of the wider side wall of the guide channel 21, so as to ensure that the cutting knife 11 cannot mistakenly enter the narrower part of the guide channel 21 due to other reasons such as vibration, and provide further safety guarantee.
Specifically, the utility model provides an elasticity side pushes away piece 12 includes spring 121 and top pearl 122, and spring 121 exerts elasticity to top pearl 122, and top pearl 122 contacts with cutting knife 11, reduces the resistance that produces when cutting knife 11 contacts.
Preferably, as shown in fig. 2A, the guide channel 21 is a strip-shaped hole formed on the magazine base 2, that is, the guide channel 21 penetrates through the sidewall of the magazine base 21; as shown in fig. 2B, the surface of the nail pushing block 41 is protruded with a limiting block 43, the limiting block 43 is located at the center line of the nail pushing block 41, the limiting block 43 can be inserted into the narrow section of the guide channel 21 to move in a guiding manner, and the limiting block 43 is matched with the width of the narrow part at the far end of the guide channel 21, so that the left and right shaking can be avoided.
Specifically, the utility model provides a cutting knife 11 is by the skew final top on stopper 43 of direction inclined plane 42 direction, and the thickness of stopper 43 is greater than the thickness of ejector pin piece 41 other parts, can reduce the pressure when cutting knife 11 and ejector pin piece 41 contact, because area of contact is bigger, makes the motion of ejector pin piece 41 more stable.
As shown in fig. 2C and 2D, the cutting blade 11 includes a cutting head 111 and a push blade 112, the push blade 112 is fixed at the proximal end of the cutting head 111, and the cutting head 111 and the push blade 112 are both in the shape of thin sheet and can be made of alloy material by welding; the portion of the cutting head 111 that contacts the staple pusher 41 is more distal with respect to the cutting edge, indicated as a in fig. 2C, and the cutting head 111 is positioned above the cutting edge with a greater thickness to contact the staple pusher 41, and this contact area projects distally with respect to the cutting edge.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The mis-excitation prevention endoscope anastomat is characterized by comprising a steering joint (1), a nail bin seat (2) and a nail anvil (3), wherein the nail bin seat (2) is installed on the steering joint (1), and the nail anvil (3) is hinged to the steering joint (1); the nail bin seat (2) is detachably provided with a nail bin (4);
a guide channel (21) is arranged on the magazine base (2) along the length direction, the width of the proximal part of the guide channel (21) is larger than that of the distal part, and a hanging table (22) with the width changing suddenly is formed on one side of the guide channel (21);
a nail pushing block (41) used for exciting a suturing nail is arranged on the nail bin (4), a guiding inclined plane (42) is arranged at the proximal end of the nail pushing block (41), the guiding inclined plane (42) is closer to the proximal end relative to the hanging table (22), and the nail pushing block (41) can only move from the proximal end to the distal end;
the steering joint (1) is provided with a cutting knife (11), the cutting knife can move along the length direction, the cutting knife (11) is opposite to the hanging table (22) when moving towards the far end, when the far end of the cutting knife (11) is in contact with the guide inclined plane (42), the cutting knife (11) deviates towards the narrow part of the width of the guide channel (21), and the cutting knife continuously moves towards the far end to push the nail pushing block (41) to move forwards to complete excitation.
2. An anti-mis-excitation endoscopic stapler as claimed in claim 1, wherein an elastic side pushing member (12) is provided on the steering joint (1), when the cutting knife (11) passes through the elastic side pushing member (12), the elastic side pushing member (12) applies a lateral elastic force perpendicular to the moving direction to the cutting knife (11), so that the cutting knife (11) is biased to move towards the hanging table (22).
3. The mis-excitation prevention endoscopic stapler as recited in claim 2, wherein the elastic side pushing piece (12) comprises a spring (121) and an ejecting bead (122), the spring (121) exerts an elastic force on the ejecting bead (122), and the ejecting bead (122) is in contact with the cutting knife (11).
4. The mis-excitation prevention endoscopic stapler according to claim 2, wherein the guide channel (21) is a strip-shaped hole provided on the magazine base (2);
the surface of the nail pushing block (41) is convexly provided with a limiting block (43), and the limiting block (43) can be inserted into the narrow section of the guide channel (21) to move in a guiding manner.
5. An anti-mis-excitation endoscopic stapler as claimed in claim 4, wherein the cutting knife (11) is guided and deflected by the guiding bevel (42) to finally abut against the stopper (43).
6. The mis-excitation prevention endoscopic stapler according to claim 4, wherein the cutting knife (11) comprises a knife head (111) and a push blade (112), the push blade (112) is fixed at the proximal end of the knife head (111); the part of the cutter head (111) contacting with the nail pushing block (41) is far more far relative to the cutter edge.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023086709.8U CN214387566U (en) | 2020-12-17 | 2020-12-17 | Mis-excitation prevention endoscope anastomat |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023086709.8U CN214387566U (en) | 2020-12-17 | 2020-12-17 | Mis-excitation prevention endoscope anastomat |
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| CN214387566U true CN214387566U (en) | 2021-10-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112472180A (en) * | 2020-12-17 | 2021-03-12 | 山东威瑞外科医用制品有限公司 | Mis-excitation prevention endoscope anastomat |
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2020
- 2020-12-17 CN CN202023086709.8U patent/CN214387566U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112472180A (en) * | 2020-12-17 | 2021-03-12 | 山东威瑞外科医用制品有限公司 | Mis-excitation prevention endoscope anastomat |
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