CN211271023U - Auxiliary sheet, nail bin assembly and circumcision anastomat - Google Patents

Abstract

The utility model discloses an assist piece, nail storehouse subassembly and circumcision anastomat, assist the piece and be cavity annular structure and form by the concatenation of a plurality of sub-auxiliary pieces that break off each other, assist the piece and include a plurality of nail shaping portions, be formed with the puncture portion that the nail foot that supplies to sew up the nail passed in each nail shaping portion, the thickness of puncture portion is less than the thickness in other regions of nail shaping portion. The utility model discloses a nail forming portion is last to have set up the puncture portion that thickness is thinner in advance, the nail foot only needs to pass the puncture portion can realize sewing up the cooperation of nail and auxiliary sheet, and puncture portion thickness is thinner, the nail foot that easily sews up the nail pierces through, the adverse reaction of in-process has been avoided piercing through, for example, the nail shaping is bad, auxiliary sheet aversion, fracture etc., simultaneously, need not to consider the problem that the nail foot can pierce through auxiliary sheet completely this moment, auxiliary sheet's thickness can suitably increase, thereby improve hemostatic effect, in addition, the auxiliary sheet of postoperative is the multistage structure, be of value to taking off the nail, and saved the operation of cutting auxiliary sheet, avoid cutting the process and hinder the target physiology tissue.

Description

Auxiliary sheet, nail bin assembly and circumcision anastomat

Technical Field

The utility model relates to a medical instrument especially relates to an assist piece, nail storehouse subassembly and circumcision anastomat.

Background

The prepuce is too long and phimosis is a common reproduction problem for men. With the continuous improvement of living standard and health consciousness of people, higher requirements are put forward on self reproductive health. The redundant prepuce is easy to store dirt and dirt, and if the prepuce is not cleaned in time, the inflammation of glans prepuce and the penile inflammation can be caused, the normal couple life is influenced, the chances of the sexual complicated with the cervicitis and the cervical cancer are increased, and various problems such as the penile cancer, the sterility and the premature ejaculation can be caused. Circumcision is an effective method for treating redundant prepuce and phimosis. A great deal of research in the last decade shows that the male circumcision has great significance for reducing the skin infection and the urinary tract infection of the male penis, reducing the incidence rate of balanitis and the like of the adult male, reducing the incidence rate of vaginal infection and cervical cancer of a partner thereof, and even preventing sexually transmitted diseases including AIDS, tumors of a reproductive system and the like.

Currently, manual circumcision and circumcision anastomat methods are generally adopted for treating the redundant prepuce. The manual circumcision adopts manual cutting and suturing, although a plurality of ways exist, the postoperation incisal margin condition completely depends on the level and skill of an operator, the prepuce incision is irregular and not beautiful, the requirement of the operator cannot be met, and the operation time is long. The existing circumcision anastomat has the characteristics of smooth incision, short operation time and simple and convenient operation, but still has certain defects, on one hand, most of the existing circumcision anastomats adopt pure metal suturing nails, are easy to wrap tissues after operation and are not easy to fall off, and patients need to bear pain again when the nails are removed after the operation; on the other hand, the metal staple directly contacts the skin, which affects the comfort of the patient and causes damage or scars to the skin after the operation.

In order to reduce bleeding as much as possible, the conventional circumcision anastomat adopts an auxiliary sheet mode, but the auxiliary sheet and the nail cylinder are easy to fall off, so that the operation is inconvenient, and the auxiliary sheet can cause the problems of poor nail forming, difficult auxiliary sheet detachment after the operation and the like.

Disclosure of Invention

An object of the utility model is to provide an assist piece, nail storehouse subassembly and circumcision anastomat.

In order to realize one of the above-mentioned utility model purpose, an embodiment of the utility model provides an auxiliary sheet for circumcision anastomat, auxiliary sheet is cavity annular structure and is formed by the concatenation of a plurality of sub-auxiliary sheets of mutual disconnection, auxiliary sheet includes a plurality of nail shaping portions, each be formed with the puncture part that supplies the nail foot of sewing the nail to pass in the nail shaping portion, the thickness of puncture part is less than the thickness of other regions of nail shaping portion.

As a further improvement of an embodiment of the present invention, the piercing part is a groove.

As a further improvement of an embodiment of the present invention, in the thickness direction of the auxiliary piece, the opening diameter of the groove is gradually changed or always kept consistent.

As a further improvement of an embodiment of the present invention, the piercing part is a through hole.

As a further improvement of an embodiment of the present invention, in the thickness direction of the auxiliary plate, the opening diameter of the through hole is gradually changed or always kept consistent.

As a further improvement of an embodiment of the present invention, the auxiliary sheet further includes a connecting portion located between adjacent nail forming portions, and a thickness of the connecting portion is smaller than a thickness of the nail forming portion.

As a further improvement of an embodiment of the present invention, the auxiliary sheet further includes a notch located at an inner edge and/or an outer edge of the auxiliary sheet.

As a further improvement of an embodiment of the present invention, the notch connects the connecting portion.

In order to realize one of the purposes of the utility model, an embodiment of the utility model provides a nail storehouse subassembly for circumcision anastomat, the nail storehouse subassembly includes nail storehouse and nail anvil, and the nail storehouse terminal surface sets up with the nail anvil terminal surface relatively, the nail storehouse subassembly still includes an arbitrary technical scheme as above the supplementary piece, supplementary piece is located nail storehouse terminal surface and/or on the nail anvil terminal surface.

As a further improvement of an embodiment of the utility model, be formed with at least a location portion on the nail storehouse terminal surface, be formed with the matching on the adjacent sub-auxiliary sheet the cooperation portion of location portion.

As a further improvement of an embodiment of the present invention, the end face of the nail bin is provided with a first positioning portion, the auxiliary plate is provided with a second positioning portion matched with the first positioning portion, and the second positioning portion is spaced from the puncturing portion.

As a further improvement of an embodiment of the present invention, the piercing part is a groove or a through hole, and is close to the end face of the nail cartridge to the direction away from the end face of the nail cartridge, and the opening diameter of the piercing part is gradually reduced.

As a further improvement of an embodiment of the present invention, the nail magazine further comprises a plurality of nail storage grooves which run through the end surface of the nail magazine and correspond to the plurality of nail forming portions, and a protruding extension of the end surface of the nail magazine and the position of the positioning columns at both ends of the nail storage grooves, the positioning columns and the puncturing portions are mutually matched.

As a further improvement of an embodiment of the present invention, the puncturing portion is a groove or a through hole, and the puncturing portion is close to one end of the positioning column is an opening.

As a further improvement of an embodiment of the present invention, the positioning column is close to one side of the nail storage groove has a guiding surface, the nail storage groove has an inner surface corresponding to the nail foot, the inner surface corresponds to the guiding surface is located the same side.

As an embodiment of the utility model provides a further improvement, the nail storehouse terminal surface is including corresponding a plurality of nail storage groove's first nail storehouse terminal surface and encircleing the second nail storehouse terminal surface that first nail storehouse terminal surface set up, second nail storehouse terminal surface with the handing-over department of first nail storehouse terminal surface is formed with step portion, first nail storehouse terminal surface is kept away from one side of second nail storehouse terminal surface is formed with the barrier portion, step portion with the barrier portion cooperation forms spacingly assist the spacing chamber of piece.

In order to achieve one of the above objects of the present invention, an embodiment of the present invention provides a circumcision stapler, which comprises the above nail cartridge assembly.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model relates to an embodiment has set up the puncture portion that thickness is thinner in advance on the nail shaping portion, at this moment, the nail foot only needs to pass the puncture portion can realize stitching the nail and assisting the cooperation of piece, and puncture portion thickness is thinner, the nail foot that easily sews the nail pierces through, the adverse reaction of in-process has been avoided piercing through, for example because the nail shaping bad problem that the too big and lead to of resistance that the puncture portion produced to the sewing nail, assist the piece aversion, the problem of breaking etc., simultaneously, need not to consider the problem that the nail foot can pierce through the assistance piece completely this moment, the thickness of assisting the piece can suitably increase, thereby improve hemostatic effect, in addition, the assistance piece of postoperative is the multistage structure, be of value to taking off the nail, and saved the operation of cutting the assistance piece, avoid cutting the process and injure target physiology tissue.

Drawings

Fig. 1 is a perspective view of a circumcision stapler according to an embodiment of the present invention;

fig. 2 is a sectional view of a circumcision stapler according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a portion of the structural mating assistant piece of the cartridge module according to an embodiment of the present invention;

FIG. 4 is a perspective view of the combination of the nail bin and the auxiliary sheet according to the first embodiment of the present invention;

FIG. 5 is an exploded view of the cooperating portion of the nail cartridge and the auxiliary piece according to the first embodiment of the present invention;

FIG. 6 is a perspective view of a nail cartridge according to a first embodiment of the present invention;

FIG. 7 is a perspective view of a sub-sheet according to a first embodiment of the present invention;

FIG. 8 is a perspective view of an auxiliary piece according to a specific example of the present invention;

FIG. 9 is a perspective view of a second embodiment of the present invention;

FIG. 10 is a perspective view of a sub-sheet according to a third embodiment of the present invention;

fig. 11 and 12 are perspective views of sub-sheets with different viewing angles according to a fourth embodiment of the present invention.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art based on these embodiments are all included in the scope of the present invention.

The words expressing the position and direction described in the utility model are all referred by the operator of the instrument, the end close to the operator is the near end, and the end far away from the operator is the far end.

In the embodiment of the present invention, the circumcision stapler is specifically explained as an example of the medical stapler of the present invention, but it should be noted that the technical spirit involved in the following embodiment may be alternatively utilized to other types of staplers.

As shown in fig. 1 to 3, in one embodiment of the present invention, a circumcision stapler 300 is used to apply a plurality of staples to a tissue of a human body (herein, foreskin) while cutting an excess tissue accordingly.

The circumcision stapler 300 includes a stapler body 100 and a glans penis receptacle assembly 200 which are fitted to each other.

Stapler body 100 includes a housing 10, at least one firing handle 11 rotatably coupled to housing 10, and a cartridge assembly 40 coupled to housing 10.

The glans-holder assembly 200 is located at the distal end of the stapler body 100, and the glans-holder assembly 200 is movable relative to the stapler body 100 towards the proximal or distal end of the circumcision stapler 300.

The cartridge module 40 includes a cartridge 41, a cartridge 42, a pusher plate 43, an annular knife 44, and a pusher shoe 46. Here, the annular knife 44 has a hollow annular shape, and the annular knife 44 may be a circular knife or a nearly circular knife, for example, an elliptical annular knife.

The nail barrel 42 is in a hollow ring shape, the nail barrel 42 is connected with the far end of the shell 10 through a fixing ring, the nail barrel 42 is detachably connected with the nail bin 41, and the nail bin 41 is an annular nail bin. Likewise, the staple cartridge 42 may be a circular staple cartridge, an elliptical staple cartridge, or the like, and the staple cartridge 41 may be a circular staple cartridge, an elliptical staple cartridge, or the like.

The nail barrel 42 is provided with a nail pushing sheet 43 and a nail bin 41 positioned at the far end of the nail pushing sheet 43, the nail pushing sheet 43 is also internally provided with an annular knife 44, when the annular knife 44 is assembled at the nail pushing sheet 43, the far end face of the annular knife 44 protrudes out of the far end face of the nail pushing sheet 43, the nail bin 41 is provided with a plurality of nail storage grooves 413 matched with the nail pushing sheet 43, and a plurality of sewing nails 4131 are positioned in the nail storage grooves 413.

The proximal end of the staple pushing sheet 43 is connected with a staple pushing seat 46, one end of the staple pushing seat 46 far away from the staple pushing sheet 43 is abutted against the firing handle 11, and the firing handle 11 drives the staple pushing sheet 43 to move towards the distal end of the circumcision stapler 300 through the staple pushing seat 46 so as to realize cutting and suturing operations.

The balanus seat assembly 200 comprises a balanus seat 20, a screw rod 21 located at the proximal end of the balanus seat 20, an anvil 451 and a knife anvil 452, wherein the balanus seat 20 is connected with the anastomat body 100 through the screw rod 21.

The glans base 20 includes a glans cavity 201 for receiving the glans and an annular rim 202 disposed around the opening of the glans cavity 201.

Here, the annular rim 202 may also be an annular cavity.

The anvil 451 and knife anvil 452 are located on a proximal surface of the looped edge 202.

The anvil 451 is a ring anvil and the knife anvil 452 is a ring anvil. Likewise, the anvil 451 can be a circular anvil, an elliptical anvil, or the like, and the knife anvil 452 can be a circular knife anvil, an elliptical knife anvil, or the like.

Stapler body 100 further includes an adjustment knob 13 attached to the proximal end of housing 10.

The adjusting knob 13 is movably connected to the proximal end of the screw rod 21 inserted into the housing 10, and the adjusting knob 13 drives the screw rod 21 to reciprocate in the axial direction of the circumcision anastomat 300 through the thread arranged in the adjusting knob 13.

The distal end of the screw rod 21 can be directly connected to the glans base 20, or the proximal end of the glans base 20 is provided with the anvil shaft 203, and the distal end of the screw rod 21 and the anvil shaft 203 are fixed to each other, so that the glans base 20 can be driven to move close to or away from the housing 10 by rotating the adjusting knob 13 clockwise or counterclockwise, and the anvil 451, the knife anvil 452 and the nail bin 41 can clamp or loosen a target tissue.

In this embodiment, the stapler body 100 includes two firing handles 11 symmetrically disposed on two sides of the housing 10, and distal ends of the two firing handles 11 both abut against a proximal end of the staple pushing seat 46.

The stapler body 100 further includes a safety mechanism 14 cooperating with the staple pushing seat 46, and preferably, when the circumcision stapler 300 is in the initial state, the safety mechanism 14 is located between the housing 10 and the staple pushing seat 46 to limit the axial movement of the staple pushing seat 46 along the circumcision stapler.

The following briefly introduces the working flow of the circumcision anastomat 300 according to an embodiment of the present invention:

in this embodiment, the glans 20 is detachably connected to the distal end of the housing 10, and when the circumcision stapler 300 is in the initial state, the glans 20 is in the openable state, and the operated target tissue (foreskin) can be placed between the nail cartridge 41 and the nail anvil 451 and the knife anvil 452 after being fixed to the glans 20.

When the circumcision anastomat 300 is switched from the initial state to the closed state, the adjusting knob 13 is rotated, the screw rod 21 moves towards the near end of the circumcision anastomat 300 under the action of the adjusting knob 13, the screw rod 21 drives the glans base 20 to move close to the shell 10 until the anvil 451, the knife anvil 452 and the nail bin 41 are closed, target physiological tissues can be clamped between the screw rod 21 and the glans base, and the nail pushing sheet 43 and the annular knife 44 are still located at the near end of the nail bin assembly 40 without moving.

When the circumcision anastomat 300 is switched from a closed state to a fired state, the anvil 451, the knife anvil 452 and the nail bin 41 are still kept closed, the safety mechanism 14 is pulled out, the firing handle 11 is pressed to drive the nail pushing seat 46 to move towards the far end of the circumcision anastomat 300, the nail pushing seat 46 drives the nail pushing sheet 43 and the annular knife 44 to move from the near end to the far end of the nail bin assembly 41, and the annular knife 44 and the nail pushing sheet 43 cut and suture clamped target physiological tissues and can be limited at the far end of the nail bin assembly 41 to stop moving.

When the circumcision anastomat 300 is switched from the firing state to the firing completion state, the firing handle 11 is released, the adjusting knob 13 is rotated in the opposite direction, the screw rod 21 drives the balanus seat 20 to move away from the shell 10, the nail pushing sheet 43 and the annular knife 44 return to the initial position, the nail anvil 451, the knife anvil 452 and the nail bin 41 are opened, and at the moment, the cut and sutured target physiological tissues can be separated from the balanus seat 20.

In one embodiment of the present invention, at least one auxiliary piece 90 is further disposed between the nail chamber 41 and the nail anvil 451, and the auxiliary piece 90 cooperates with the suturing nail 4131.

Specifically, a cartridge end face 411 at the distal end of the cartridge 41 is arranged opposite to an anvil end face 4511 at the proximal end of the anvil 451, and the auxiliary plate 90 is positioned on the cartridge end face 411 and/or the anvil end face 4511.

In the prior art, the auxiliary plate 90 may be disposed on the end surface 411 of the staple cartridge and/or the end surface 4511 of the anvil through a socket fastening or a damping grease adhesion, on one hand, the auxiliary plate 90 may be limited at the end surface 411 of the staple cartridge and/or the end surface 4511 of the anvil to prevent the auxiliary plate 90 from shifting when the circumcision stapler 300 is in the initial state and the closed state, and on the other hand, the auxiliary plate 90 may be conveniently separated from the end surface 411 of the staple cartridge and/or the end surface 4511 of the anvil when the circumcision stapler 300 is in the firing state and the firing completion state.

Here, when one auxiliary plate 90 is disposed at the staple cartridge end surface 411 or the anvil end surface 4511, the postoperative auxiliary plate 90 is only on one side of the foreskin, and the auxiliary plate 90 performs auxiliary hemostasis on one side of the foreskin; when the two auxiliary sheets 90 are respectively arranged at the nail bin end surface 411 and the nail anvil end surface 4511, the two postoperative auxiliary sheets 90 are distributed on two sides of the foreskin, and the two auxiliary sheets 90 clamp two layers of foreskin, so that the hemostatic effect is further improved. It should be noted that two or more flaps 90 may be included on one side of the wrapper, as the case may be.

In the present embodiment, referring to fig. 4 to 7, the sub-sheet 90 has a hollow ring-shaped structure and is formed by splicing a plurality of sub-sheets 901 that are separated from each other, the sub-sheet 90 includes a plurality of staple forming portions 91, each staple forming portion 91 has a piercing portion 911 through which a staple leg of a staple 4131 passes, and the thickness of the piercing portion 911 is smaller than the thickness of the other regions of the staple forming portion 91.

That is to say, the nail forming part 91 is provided with the thin puncturing part 911 in advance, the nail foot can realize the matching of the suturing nail 4131 and the auxiliary sheet 90 only by penetrating the puncturing part 911, the puncturing part 911 is thin, the nail foot of the suturing nail 4131 is easy to penetrate, and adverse reactions in the penetrating process are avoided, for example, the problem of poor nail forming caused by too large resistance of the puncturing part 911 to the suturing nail 4131, the problem of displacement and breakage of the auxiliary sheet 90 and the like are solved, meanwhile, only the thickness of the puncturing part 911 is required to be thinned, the thickness of other parts of the auxiliary sheet 90 can be properly increased, and therefore the hemostatic effect is improved.

Note that the phrase "a plurality of sub-sheets 901 are disconnected from each other" means that there is no connection between adjacent sub-sheets 901, and any sub-sheet 901 is an independent structure.

In the present embodiment, the sub-sheets 90 include two sub-sheets 901 as an example, and in other embodiments, the number of the sub-sheets 901 may be determined according to actual situations.

At the moment, the postoperative auxiliary sheet 90 is of a multi-section structure, which is beneficial to nail removal, and the operation of cutting the auxiliary sheet 90 is omitted, so that the injury of target physiological tissues in the cutting process is avoided, and the postoperative patient can be conveniently nursed.

In the present embodiment, at least one positioning portion 4115 is formed on the magazine end surface 411, and engaging portions 901a and 901b that match the positioning portion 4115 are formed on the adjacent sub-tabs 901.

Specifically, set up two location portion 4115 on the nail storehouse terminal surface 411, location portion 4115 is located first nail storehouse terminal surface 4111 and is close to the position of step portion 4113, location portion 4115 actual connection step portion 4113, location portion 4115 is the location boss, and the tip that two sub-auxiliary sheets 901 are adjacent forms cooperation portion 901a, 901b respectively, cooperation portion 901a, 901b are the notch that matches with the location boss, so, when two sub-auxiliary sheets 901 are arranged in nail storehouse terminal surface 411 department, through cooperation portion 901a, 901b and location portion 4115 spacing, can the effective control two sub-auxiliary sheets 901 place the position, realize preventing slow-witted purpose.

In practical operation, a fracture area is formed between the adjacent ends of the two sub-tabs 901, the hemostatic effect of the fracture area is relatively poor, and in order to improve the overall hemostatic effect of the sub-tab 90, the fracture area may be disposed away from an area prone to bleeding or a sensitive area, for example, the positioning portion 4115 may be disposed in an area away from a portion where a lace or an inner plate is prone to bleeding, such as avoiding a superficial fascial artery, a groove 412 corresponding to the lace is formed at an outer edge of the staple cartridge 41, and at this time, the positioning portion 4115 and the groove 412 may be disposed in a staggered manner, so that the fracture area is away from the lace.

In the first embodiment of the present invention, with reference to fig. 4 to 7, the piercing part 911 is a through hole 911, i.e., the thickness of the piercing part 911 is zero at this time.

That is to say, through-hole 911 has been set up in advance on nail shaping portion 91, at this moment, the cooperation that sews up nail 4131 and auxiliary piece 90 can be realized to the nail foot only need pass through-hole 911, the process that the nail foot pierces through auxiliary piece 90 has been saved, the adverse reaction of piercing through the in-process has been avoided, for example, because the nail shaping bad problem that the resistance that department of piercing 911 produced to sewing nail 4131 is too big and leads to, auxiliary piece 90 shifts, the problem of breaking etc. simultaneously, at this moment, need not to consider the problem that the nail foot can pierce through auxiliary piece 90 completely, auxiliary piece 90's thickness can suitably increase, thereby improve hemostatic effect.

In the present embodiment, the staple storage groove 413 penetrates the staple cartridge end surface 411 and is disposed corresponding to the plurality of staple forming portions 91, the staple cartridge 41 further includes positioning posts 414 protruding out of the staple cartridge end surface 411 and located at two ends of the staple storage groove 413, and the positioning posts 414 are matched with the through holes 911.

Here, the positioning posts 414 are located at two ends of the length direction of the staple storage groove 413, the "length direction" is the circumferential direction of the auxiliary sheet 90, there is no overlapping area between the positioning posts 414 and the staple storage groove 413 in the axial direction of the circumcision stapler 300, that is, the positioning posts 414 are located at two sides of the distal opening of the staple storage groove 413, and the positioning posts 414 do not influence the passing of the staples 4131 out of the staple storage groove 413.

Specifically, one side of the positioning column 414 close to the nail storage groove 413 is provided with a guide surface 4141, the nail storage groove 413 is provided with an inner surface 4132 corresponding to the nail foot, and the inner surface 4132 and the corresponding guide surface 4141 are positioned on the same plane.

That is, in the axial direction of the circumcision anastomat 300, the guide surface 4141 is an extension surface of the inner surface 4132, the nail foot is arranged to be attached to the inner surface 4132, when the circumcision anastomat 300 is in the firing process, the suturing nail 4131 is fired, the nail foot moves along the axial direction of the circumcision anastomat 300 under the guiding action of the inner surface 4132 and the guide surface 4141, namely the moving direction of the suturing nail 4131 is limited by the nail storage groove 413 and the positioning column 414, the moving direction is stable, the forming effect of the suturing nail 4131 can be greatly improved, and the poor forming of the suturing nail 4131 is avoided.

In addition, the positioning post 414 is matched with the through hole 911, so as to assist in positioning the auxiliary sheet 90 and prevent the auxiliary sheet 90 from shifting or falling off during the cutting and sewing process.

Here, the outer surface of the positioning post 414 on the side away from the nail storage groove 413 is formed in an arc shape, and the arc outer surface and the inner surface of the through hole 911 are matched with each other, so that the auxiliary plate 90 can be stably positioned.

The opening diameter of the through hole 911 is always consistent in the thickness direction of the auxiliary plate 90, that is, the through hole 911 is a cylindrical through hole, but not limited thereto, and in other embodiments, the through hole 911 may also be a truncated cone or other structures.

In this embodiment, the nail bin end surface 411 includes a first nail bin end surface 4111 corresponding to the plurality of nail storage grooves 413 and a second nail bin end surface 4112 surrounding the first nail bin end surface 4111, a step portion 4113 is formed at a joint of the second nail bin end surface 4112 and the first nail bin end surface 4111, a blocking portion 4114 is formed on one side of the first nail bin end surface 4111 away from the second nail bin end surface 4112, the step portion 4113 and the blocking portion 4114 cooperate to form a limiting cavity S of the limiting auxiliary piece 90, and the limiting cavity S avoids the auxiliary piece 90 from moving along the direction of the center of the hollow annular structure toward the edge or the opposite direction thereof.

It is understood that the hollow annular structure may be a hollow annular structure, a hollow elliptical annular structure, or the like, and when the hollow annular structure is a hollow annular structure, the direction from the center to the edge substantially refers to the radial direction of the hollow annular structure, and when the hollow annular structure is a hollow elliptical annular structure, the direction from the center to the edge substantially refers to the direction from the origin to the edge of the hollow elliptical annular structure.

In a particular example, with reference to fig. 8, the tab 90 further includes a connecting portion 92 between adjacent staple forming portions 91, the connecting portion 92 having a thickness less than the thickness of the staple forming portions 91.

It should be noted that the phrase "the thickness of the connecting portion 92 is smaller than the thickness of the nail molding portion 91" means that the connecting portion 92 is thinned in the axial direction of the circumcision stapler 300, so that the thickness of the connecting portion is smaller than the thickness of the nail molding portion 91.

At this time, the connecting portion 92 is more easily broken than the nail forming portion 911, and after the circumcision stapler 300 is fired, the entire sub-prosthetic sheet 901 can be separated into a plurality of sections by breaking the connecting portion 92, and at this time, the entire prosthetic sheet 90 can be separated into smaller sections, which can further assist in the removal of the nail and prevent the process of cutting the sub-prosthetic sheet 901 from damaging the target tissue, that is, the prosthetic sheet 90 of the present embodiment is a prosthetic sheet 90 that does not require a cutting operation.

In addition, before the circumcision anastomat 300 is fired, the whole sub-auxiliary sheet 901 is connected together through the connecting part 92 all the time, so that the whole strength of the sub-auxiliary sheet 901 can be ensured, and the phenomena of displacement, breakage and the like of the sub-auxiliary sheet 901 are avoided.

Here, the fitting relationship between the staple forming portions 91 and the connecting portions 92 may be determined according to actual conditions, for example, one staple forming portion 91 and one connecting portion 92 are alternately arranged, or a plurality of staple forming portions 91 and one connecting portion 92 are alternately arranged.

In this embodiment, the sub-panel 90 further includes a notch 921 at an inner edge and/or an outer edge of the sub-panel 90, the notch 921 connecting the connecting portion 92.

Here, the notch 921 is located at the inner edge of the auxiliary piece 90, but not limited to this, the disconnection of the connecting portion 92 can be assisted by providing the notch 921.

It should be noted that the sub-sheets 90 according to the present invention may include a plurality of sub-sheets 901, each sub-sheet 901 further includes a plurality of connecting portions 92, but not limited thereto, and in other embodiments, the sub-sheet may include only a connecting portion without being broken into a plurality of sub-sheets, or the sub-sheet may be broken into only a plurality of sub-sheets without including a connecting portion, which may be determined according to actual conditions.

In addition, the sub-tablet 90 may include only the notches 921 at the inner edge and/or the outer edge of the sub-tablet 90, without including the connecting portions 92, i.e., the entire sub-tablet 901 is separated into multiple segments directly by the notches 921.

Referring to fig. 9, a schematic diagram of a second embodiment of the present invention is shown, and for convenience of description, the structures similar to those of the first embodiment are numbered similarly.

In the present embodiment, the piercing part 911 is a notch 911 c.

Here, "groove 911 c" is defined as a structure having one end open and the other end closed.

Specifically, the auxiliary piece 90c of the present embodiment includes a first end surface 901c and a second end surface 902c that are opposite to each other in the thickness direction, the groove 911c has an opening 9011c at the first end surface 901c, and a closed surface 9021c at the second end surface 902c, where the thickness of the closed surface 9021c is the thickness of the groove 911 c.

The closed surface 9021c is not limited to a completely closed surface, and a small opening may be formed in the closed surface 9021 c.

At this time, the first end surface 901c is disposed corresponding to the end surface 411 of the staple cartridge, and the groove 911c is disposed at the positioning post 414, and the distal end face of the positioning column 414 corresponds to the closed face 9021c, the suturing nail 4131 penetrates through the closed face 9021c after passing through the positioning column 414, the groove 911c can assist the auxiliary sheet 90c and the nail bin end face 411 to be fixed with each other, the nail foot can be matched with the suturing nail 4131 and the auxiliary sheet 90c only by penetrating through the groove 911c with a thinner thickness, the groove 911c is thinner, the nail foot of the suturing nail 4131 is easy to penetrate, adverse reactions in the penetrating process are avoided, for example, the problems of poor nail molding due to excessive resistance of the piercing part 911 to the sewing nail 4131, displacement and breakage of the sub piece 90c, and the like, meanwhile, only the thickness of the groove 911c needs to be reduced, and the thickness of the other parts of the auxiliary sheet 90c can be properly increased, so that the hemostatic effect is improved.

The opening diameter of the groove 911c is always consistent in the thickness direction of the auxiliary piece 90c, that is, the groove 911c is a cylindrical groove, but not limited thereto, and in other embodiments, the groove 911c may also be a truncated cone or other structures.

The groove 911c of the present embodiment includes the closed surface 9021c, and the closed surface 9021c may also serve as a part of the auxiliary sheet 90c to perform a hemostatic effect, which is better than the hemostatic effect of the first embodiment, in other words, the suturing nail 4131 passes through the closed surface 9021c to suture the foreskin tissue, and the closed surface 9021c is located between the suturing nail 4131a and the foreskin tissue to perform a hemostatic effect, that is, the setting of the groove 911c does not affect the hemostatic effect of the auxiliary sheet 90 c.

For other descriptions of this embodiment, reference may be made to the first embodiment, which is not described herein again.

Referring to fig. 10, for the purpose of illustration of the third embodiment of the present invention, the structures similar to those of the first embodiment are numbered similarly for convenience of description.

In the present embodiment, the piercing part 911 is a through hole 911 d.

Here, the "through hole 911 d" is defined as a structure in which both ends are open.

The end face 411 of the staple cartridge is provided with a first positioning portion, the auxiliary piece 90d is provided with a second positioning portion 903d matched with the first positioning portion, the second positioning portion 903d and the through hole 911d are arranged at intervals, and in the thickness direction of the auxiliary piece 90d, the opening diameter of the through hole 911d is gradually changed, that is, the through hole 911d is a truncated cone-shaped through hole, but not limited thereto.

Specifically, the auxiliary piece 90d of the present embodiment includes a first end surface 901d and a second end surface 902d that are disposed opposite to each other in the thickness direction, the through hole 911d has a first opening 9011d at the first end surface 901d, and the through hole 911d has a second opening 9021d at the second end surface 902d, where the thickness of the through hole 911d is zero.

The first end surface 901d of the auxiliary piece 90d is disposed corresponding to the magazine end surface 411, and the opening diameter of the through hole 911d tends to become gradually smaller in a direction from the first opening 9011d toward the second opening 9021 d.

At this moment, through the cooperation of first location portion and second location portion 903d, realize assisting mutual fixation of piece 90d and nail storehouse terminal surface 411, and the nail foot only need pass through-hole 911d can realize sewing nail 4131 and assisting the cooperation of piece 90d, the process that the nail foot pierces through assisting piece 90d has been saved, the adverse reaction of piercing through the in-process has been avoided, for example, because the nail shaping bad problem that the resistance that the portion 911 produced to sewing nail 4131 is too big leads to, assist piece 90d shifts, the problem of breaking etc., simultaneously, need not to consider the problem that the nail foot can pierce through assisting piece 90d completely this moment, the thickness of the other parts of assisting piece 90d can suitably increase, thereby improve hemostatic effect.

In addition, in the direction from the end surface 411 of the nail bin to the end surface 411 of the nail bin, the opening diameter of the through hole 911d tends to become smaller gradually, and the through hole 911d can realize a guiding function.

Specifically, when the circumcision anastomat 300 is in the firing process, the suturing nail 4131 is fired, the nail foot moves axially along the circumcision anastomat 300 under the guiding action of the inner surface of the through hole 911d of the auxiliary sheet 90d, namely the movement direction of the suturing nail 4131 is limited by the through hole 911d, the movement direction is stable, the forming effect of the suturing nail 4131 can be greatly improved, and the poor forming of the suturing nail 4131 is avoided.

For other descriptions of this embodiment, reference may be made to the first embodiment, which is not described herein again.

Referring to fig. 11 and 12, which are schematic views of a fourth embodiment of the present invention, for convenience of description, the structures similar to those of the first embodiment are numbered similarly.

In the present embodiment, the piercing portion 911 is a notch 911 e.

Here, "groove 911 e" is defined as a structure that is open at one end and closed at the other end.

The end face 411 of the staple cartridge is provided with a first positioning portion, the auxiliary piece 90e is provided with a second positioning portion 903e matched with the first positioning portion, the second positioning portion 903e and the groove 911e are arranged at intervals, and in the thickness direction of the auxiliary piece 90e, the opening diameter of the groove 911e is gradually changed, that is, the groove 911e is a truncated cone-shaped groove, but not limited thereto.

Specifically, the auxiliary piece 90e of the present embodiment includes a first end surface 901e and a second end surface 902e that are disposed opposite to each other in the thickness direction, the groove 911e has an opening 9011e at the first end surface 901e, and a closed surface 9021e at the second end surface 902e, where the thickness of the closed surface 9021e is the thickness of the groove 911 e.

The closed surface 9021e is not limited to a completely closed surface, and a small opening may be formed in the closed surface 9021 e.

The first end surface 901e of the auxiliary piece 90e is disposed corresponding to the cartridge end surface, and the opening diameter of the groove 911e tends to become gradually smaller in a direction from the opening 9011e toward the closed surface 9021 e.

At this time, through the cooperation of the first positioning portion and the second positioning portion 903e, the auxiliary sheet 90e and the nail bin end face 411 are fixed to each other, the nail foot can be matched with the suturing nail 4131 and the auxiliary sheet 90e only by penetrating through the groove 911e with a relatively small thickness, the groove 911e is relatively small in thickness, the nail foot of the suturing nail 4131 can penetrate easily, and adverse reactions in the penetrating process are avoided, for example, the problem of poor nail forming caused by too large resistance of the puncturing portion 911 to the suturing nail 4131, the problem of displacement and breakage of the auxiliary sheet 90e and the like of the auxiliary sheet 90e are solved, and meanwhile, the thickness of the groove 911e is only required to be thinned at this time, the thicknesses of other parts of the auxiliary sheet 90e can be increased properly, and the hemostatic.

In addition, in the direction from the end surface 411 of the nail bin to the end surface 411 of the nail bin, the opening aperture of the groove 911e tends to become smaller gradually, and the groove 911e can realize the guiding function.

Specifically, when the circumcision anastomat 300 is in the firing process, the suturing nail 4131 is fired, the nail foot moves axially along the circumcision anastomat 300 under the guiding action of the inner surface of the groove 911e of the auxiliary sheet 90e, namely the movement direction of the suturing nail 4131 is limited by the groove 911e, the movement direction is stable, the forming effect of the suturing nail 4131 can be greatly improved, and the poor forming of the suturing nail 4131 is avoided.

The groove 911e of the present embodiment includes the closed surface 9021e, and the closed surface 9021e may also serve as a part of the auxiliary sheet 90e to perform a hemostatic effect, which is better than the hemostatic effect of the first embodiment, in other words, the suturing nail 4131 passes through the closed surface 9021e to suture the foreskin tissue, and the closed surface 9021e is located between the suturing nail 4131a and the foreskin tissue to perform a hemostatic effect, that is, the setting of the groove 911e does not affect the hemostatic effect of the auxiliary sheet 90 e.

For other descriptions of this embodiment, reference may be made to the first embodiment, which is not described herein again.

The above embodiment is merely illustrative of the structure of the sub-sheet 90 and the fitting structure of the sub-sheet 90 and the magazine end surface 411, and other combinations are possible in other embodiments.

To sum up, the utility model discloses an auxiliary sheet has set up the puncture portion that the thickness is thinner, help the puncture process of nail foot, in some embodiments, can also cooperate and supplementary auxiliary sheet location through the reference column of puncture portion and nail storehouse terminal surface department, prevent that auxiliary sheet from sewing up the in-process at the cutting and taking place aversion or obscission, and the reference column can also play the guide effect, improve the shaping effect of sewing up the nail greatly, in other embodiments, the puncture portion of auxiliary sheet can directly play the guide effect, in addition, through cutting apart into a plurality of sub auxiliary sheets with auxiliary sheet, and set up location portion, can avoid the regional hemostatic effect that influences of fracture under supplementary prerequisite of taking off the nail, connecting portion established in addition can further assist takes off the nail.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Claims (17)

1. The utility model provides an auxiliary sheet for circumcision anastomat, its characterized in that, auxiliary sheet is cavity loop configuration and is formed by a plurality of sub-auxiliary sheet concatenations of mutual disconnection, auxiliary sheet includes a plurality of nail shaping portions, each be formed with the puncture portion that supplies the nail foot of sewing nail to pass on the nail shaping portion, the thickness of puncture portion is less than the thickness in other regions of nail shaping portion.

2. A tablet according to claim 1, wherein the piercing portion is a recess.

3. An auxiliary sheet according to claim 2, wherein the opening diameter of the groove is gradually changed or is always consistent in the thickness direction of the auxiliary sheet.

4. A sub-tablet according to claim 1, wherein the piercing portion is a through-hole.

5. The auxiliary sheet according to claim 4, wherein the aperture of the through hole has a gradual change trend or is always consistent in the thickness direction of the auxiliary sheet.

6. A patch according to claim 1, further comprising a connecting portion between adjacent staple formations, the connecting portion having a thickness less than the thickness of the staple formations.

7. A patch according to claim 6, further comprising a notch at the inner and/or outer edge of the patch.

8. A patch according to claim 7, wherein the notch connects the connection portions.

9. A nail bin assembly for a circumcision anastomat is characterized by comprising a nail bin and a nail anvil, wherein the end surface of the nail bin is opposite to the end surface of the nail anvil, the nail bin assembly further comprises an auxiliary sheet according to any one of claims 1 to 8, and the auxiliary sheet is positioned on the end surface of the nail bin and/or the end surface of the nail anvil.

10. The staple cartridge assembly of claim 9, wherein said cartridge end surface has at least one detent formed thereon, and adjacent sub-tabs have mating portions formed thereon that mate with said detents.

11. The staple cartridge assembly according to claim 9, wherein said end surface of said staple cartridge is provided with a first positioning portion, said auxiliary plate is provided with a second positioning portion engaged with said first positioning portion, and said second positioning portion is spaced apart from said piercing portion.

12. The staple cartridge assembly of claim 11, wherein said piercing portion is a recess or a through hole, and the aperture of said piercing portion decreases from the proximal end to the distal end of said staple cartridge.

13. The staple cartridge assembly according to claim 9, wherein said staple cartridge further comprises a plurality of staple storage slots through said end surface of said staple cartridge and corresponding to said plurality of staple forming portions, and positioning posts protruding out of said end surface of said staple cartridge and located at both ends of said staple storage slots, said positioning posts cooperating with said piercing portions.

14. The staple cartridge assembly of claim 13, wherein said piercing portion is a recess or a through hole and an end of said piercing portion adjacent to said positioning post is open.

15. The staple cartridge assembly of claim 13, wherein said retention post has a guide surface on a side thereof adjacent said staple magazine, said staple magazine having an inner surface corresponding to said staple legs, said inner surface being coplanar with said corresponding guide surface.

16. The staple cartridge assembly according to claim 13, wherein the staple cartridge end surface comprises a first staple cartridge end surface corresponding to the plurality of staple storage grooves and a second staple cartridge end surface surrounding the first staple cartridge end surface, a stepped portion is formed at a joint of the second staple cartridge end surface and the first staple cartridge end surface, a blocking portion is formed at one side of the first staple cartridge end surface, which is far away from the second staple cartridge end surface, and the stepped portion and the blocking portion are matched to form a limiting cavity for limiting the auxiliary piece.

17. A circumcision stapler comprising a cartridge assembly according to claim 9.

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