CN211911740U

CN211911740U - Knob assembly and circumcision anastomat with same

Info

Publication number: CN211911740U
Application number: CN201922419764.5U
Authority: CN
Inventors: 张小锋; 黄柊喻; 陈伟娜
Original assignee: Suzhou Tianchen International Medical Technology Co Ltd
Current assignee: Suzhou Tianchen International Medical Technology Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-11-13
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a knob subassembly and have its circumcision anastomat, knob subassembly are including the knob body and the instruction subassembly of mutually supporting, and the knob body includes the visual window, and the visual window is including relative initial position and the stop position that sets up, and the instruction subassembly includes atress portion and instruction portion, and the atress portion drives the instruction portion and moves by initial position orientation stop position under the exogenic action. The utility model discloses a knob subassembly includes the visual window and is located the instruction part of visual window, the art person can confirm through the position of observing the instruction part whether the circumcision anastomat reachs the state of percussion, through audio-visual suggestion, can effectively avoid nail storehouse subassembly and glans penis seat closure not in place or closed tension, guarantee suitable nail shaping height, prevent that the high too big postoperative that causes of nail shaping resumes the problem that causes and excessively squeeze, and simultaneously, the visual window includes the stop position, can further prevent excessively squeezing the foreskin tissue.

Description

Knob assembly and circumcision anastomat with same

Technical Field

The utility model relates to a medical instrument especially relates to a knob subassembly and have its circumcision anastomat.

Background

The prepuce is too long and phimosis is a common reproduction problem for men. The excess foreskin is easy to store dirty and dirty, if not cleaned in time, the inflammation of glans foreskin and the penile inflammation can be caused, the normal couple life is influenced, the chances of the uterine neck inflammation and the cervical cancer which are accompanied by sexuality are increased, and meanwhile, various problems such as penis cancer, sterility and premature ejaculation can be caused.

With the continuous improvement of living standard and health consciousness of people, higher requirements are put forward on self reproductive health. 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 penis, reducing the incidence rate of balanitis and the like of adult males, reducing the incidence rate of vaginal infection and cervical cancer of partners of the males, and even preventing sexually transmitted diseases including AIDS, tumors of a reproductive system and the like.

The circumcision anastomat can be used for treating the overlong foreskin. Generally, the circumcision anastomat comprises a glans base, and during the operation, the glans can be firstly placed in a glans cavity of the glans base, and then the prepuce to be cut is stretched and fixed towards the near end of the glans base, so that the subsequent cutting and suturing operations can be carried out.

The circumcision anastomat further comprises a nail bin assembly, a glans penis base and a lead screw driving the glans penis base to move towards the nail bin assembly, and one end, far away from the glans penis base, of the lead screw is matched with the knob.

When the knob rotates relative to the screw rod, the screw rod drives the balanus seat to move along the axial direction of the circumcision anastomat, and when the balanus seat and the nail bin assembly are mutually closed, the circumcision anastomat reaches a percussion state.

In the prior art, generally, an operator needs to judge whether the circumcision anastomat reaches a triggering state or not by feeling.

Specifically, when the operator feels the positions almost, the operator touches the relative positions of the screw rod and the knob at the near end of the circumcision anastomat by fingers, and if the screw rod and the knob are approximately parallel to each other, the operator judges that the position can be triggered, and then the operator triggers the suturing nail and the cutter.

Such disadvantages are: the operator can judge the suturing nail completely by feeling without visual prompt, and the suturing nail is often not closed in place to cause poor forming of the suturing nail or is closed too tightly to cause excessive squeezing of tissues.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a knob subassembly and have its circumcision anastomat, it can provide audio-visual instruction for the art person.

In order to realize the above object of the present invention, an embodiment of the present invention provides a knob assembly for circumcision anastomat, the knob assembly includes mutually supporting knob body and indicating assembly, the knob body includes a visual window, the visual window includes relative initial position and the stop position that sets up, the indicating assembly includes atress portion and indicating part, the atress portion drives under the exogenic action indicating part by the initial position orientation the stop position motion.

As a further improvement of an embodiment of the present invention, the knob body includes a channel located at the middle portion, the stress portion is located in the channel, the visual window communicates with the channel, the indication portion faces the visual window direction protrudes from the stress portion.

As a further improvement of an embodiment of the present invention, the force receiving portion protrudes from the indicating portion in the extending direction of the passage.

As a further improvement of an embodiment of the present invention, the force receiving portion and the indicating portion are fixed to each other.

As a further improvement of an embodiment of the present invention, the indicating portion surrounds the force receiving portion.

As a further improvement of an embodiment of the present invention, the knob body includes two knob portions symmetrically disposed and two indicating surfaces located between the two knob portions, and the visible window runs through the two indicating surfaces.

For realizing the above utility model purpose, an embodiment of the utility model provides a circumcision anastomat, including anastomat body, glans penis seat and drive glans penis seat orientation the lead screw that the anastomat body removed, the anastomat body include the casing and as above an arbitrary technical scheme the knob subassembly, the knob body is located the near-end of casing, the knob body is relative the lead screw rotates and drives glans penis seat orientation the anastomat body removes, just the lead screw extends to the passageway passes through atress portion drives the instruction portion motion.

As an improvement of an embodiment of the present invention, the knob body corresponds the surface of the visual window is provided with a mark portion, when the indication portion is in a predetermined relative position, the stapler body reaches the glans base clamps the foreskin to be cut and makes the circumcision stapler is in a cocked state.

As a further improvement of an embodiment of the present invention, the proximal end face of the passage and the force receiving portion are provided with an elastic member therebetween, and the elastic member acts on the force receiving portion all the time.

As an embodiment of the utility model provides a further improvement, the passageway is including corresponding the main entrance of visual window, and be located the distal end passageway of main entrance distal end and being located the near-end passageway of main entrance near-end, the atress portion is including connecting the main atress portion of instruction portion to and the protruding stretch of orientation far-end direction the distal end atress portion of main atress portion and the protruding stretch of orientation near-end direction the near-end atress portion of main atress portion works as the instruction portion by the initial position orientation during the stop position motion, at least part distal end atress portion is located all the time in the distal end passageway.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model relates to an embodiment's knob subassembly includes the visual window and is located the instruction part of visual window, the art person can confirm through the position of observing the instruction part whether the circumcision anastomat reachs the state of percussion, through audio-visual suggestion, can effectively avoid nail storehouse subassembly and glans penis seat closure not in place or closed tension, guarantee suitable nail shaping height, prevent the high too big postoperative recovery problem that causes of bleeding and excessively squeezing and causing of nail shaping height, and simultaneously, the visual window includes the stop position, can further prevent excessively squeezing the foreskin 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 perspective view of the knob assembly and the lead screw according to an embodiment of the present invention;

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

fig. 5 is an exploded view of a knob assembly according to an embodiment of the present invention;

fig. 6 is a perspective view of a knob assembly according to a specific example of the present invention;

fig. 7 is a cross-sectional view of the knob assembly and the lead screw according to an 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 and 2, in one embodiment of the present invention, a circumcision stapler 300 is used to apply a plurality of staples to a tissue (herein, foreskin) of a human body while correspondingly cutting the excess tissue.

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, the balanus seat 20 is connected with the stapler body 100 through the screw rod 21, and the screw rod 21 drives the balanus seat 20 to move towards the stapler body 100.

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.

The anastomat body 100 further comprises a knob assembly 13, the knob assembly 13 comprises a knob body 131 located at the near end of the shell 10, the knob body 131 is movably connected with the near end of a screw rod 21 penetrating through the shell 10, the knob body 131 rotates relative to the screw rod 21 to drive the glans base 20 to move towards the anastomat body 100, and specifically, the knob body 131 drives the screw rod 21 to reciprocate in the axial direction of the circumcision anastomat 300 through threads arranged in the knob body 131.

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 knob body 131 clockwise or counterclockwise, and the anvil 451, the knife anvil 452 and the nail bin 41 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 can 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 knob body 131 is rotated, the screw rod 21 moves towards the near end of the circumcision anastomat 300 under the action of the knob body 131, 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 knob body 131 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 the present embodiment, in conjunction with fig. 3 to 6, the knob assembly 13 further includes an indication assembly 132 cooperating with the knob body 131.

The knob body 131 includes a viewing window 1311, the viewing window 1311 includes an initial position 1311a and a stop position 1311b, the indication assembly 132 includes a force-receiving portion 1321 and an indication portion 1322, and the force-receiving portion 1321 drives the indication portion 1322 to move from the initial position 1311a to the stop position 1311b under the action of an external force.

Here, the viewing window 1311 is a portion that can be directly visually observed by an operator during the operation of the circumcision stapler 300, the operator can determine the status of the circumcision stapler by the position of the indicating portion 1322 on the viewing window 1311, the distal end surface of the viewing window 1311 in the axial direction of the circumcision stapler 300 is defined as an initial position 1311a, and the proximal end surface is defined as a stop position 1311 b.

The knob body 131 includes two knob portions 1313 symmetrically disposed and two indicating surfaces 1314 located between the two knob portions 1313, and the viewing window 1311 penetrates through the two indicating surfaces 1314.

That is to say, the knob body 131 includes two viewing windows 1311, which respectively penetrate the two indicating surfaces 1314, and the two viewing windows 1311 are symmetrically disposed, so that the operator can always observe the viewing windows 1311 during the rotation of the knob body 131.

In the rotation direction of the knob body 131, a certain gap is formed between the inner wall of the viewing window 1311 and the outer wall of the indication portion 1322 to prevent the viewing window 1311 and the indication portion 1322 from interfering with each other.

In addition, the indication portion 1322 is entirely located within the viewing window 1311, i.e., the outer wall of the indication portion 1322 does not protrude out of the indication surface 1314.

In a specific example, referring to fig. 6, the knob body 131 is provided with a mark 1312 on the outer surface corresponding to the viewing window 1311, and when the indicator 1322 and the mark 1312 are at a predetermined relative position, the stapler body 100 and the glans base 20 clamp the foreskin to be cut, so that the circumcision stapler 300 is in a cocked state.

Here, the marker 1312 may be provided at the indicating surface 1314.

The cocked state is the state that the cartridge module 40 and the glans 20 are already in place for clamping the foreskin to be cut and can perform the firing of the stitching staples and the cutter 44.

The predetermined relative position refers to the relative position of the indicator 1322 and the marker 1312 in the cocked state.

An operator can determine whether the circumcision anastomat 300 reaches a triggerable state or not by observing the relative positions of the indicating part 1322 and the marking part 1312, and through visual prompt, the condition that the nail bin assembly 40 and the glans penis base 20 are not closed in place or are closed too tightly can be effectively avoided, the proper nail forming height is ensured, and the problems of bleeding caused by too large nail forming height and postoperative recovery caused by excessive squeezing are prevented.

In this embodiment, a linear or dot mark 13221 may be provided on the indicator 1322, the mark 1312 on the outer surface of the knob body 131 may be a linear or dot mark, and when the indicator 1322 reaches or passes over the mark 1312, the indicator 1322 and the mark 1312 are defined to be at a predetermined relative position, which may be a position interval, and the mark may be provided with a conspicuous color.

The viewing window 1311 of the present embodiment includes a stop position 1311b, and when the operator continues to rotate the knob body 131 and brings the indicator 1322 into contact with the stop position 1311b, the operator cannot rotate the knob body 131 any more, thereby preventing excessive compression of the foreskin tissue.

Note that, the knob body 131 may be configured to have another marking method instead of the marking portion 1312, or may be configured to define the stop position 1311b as the cockable position directly, that is, to be in the cockable state when the indicator 1322 abuts against the stop position 1311 b.

In this embodiment, referring to fig. 7, the knob body 131 includes a channel 1315 located in the middle, the force receiving portion 1321 is located in the channel 1315, the viewing window 1311 is communicated with the channel 1315, the indication portion 1322 protrudes out of the force receiving portion 1321 toward the viewing window 1311, and the screw rod 21 extends to the channel 1315 and drives the indication portion 1322 to move through the force receiving portion 1321.

Here, the passage 1315 extends in the axial direction of the circumcision stapler 300, and the two viewing windows 1311 communicate with each other through the passage 1315, and the viewing window 1311 also extends in the axial direction of the circumcision stapler 300.

The force-bearing portion 1321 and the indication portion 1322 are fixed to each other, and the indication portion 1322 is arranged around the force-bearing portion 1321, so that when the force-bearing portion 1321 moves in the channel 1315 under the driving of the screw rod 21, the force-bearing portion 1321 drives the indication portion 1322 to move together, that is, the indication portion 1322 moves in the visual window 1311 along the axial direction of the circumcision anastomat 300 at the moment, and the guidance and the limitation of the indication portion 1322 can be realized through the channel 1315 and the visual window 1311.

In this embodiment, the force-receiving portion 1321 protrudes with the indicating portion 1322 along the extending direction of the channel 1315, and the extending direction of the channel 1315 is the axial direction of the circumcision anastomat 300.

Specifically, the passage 1315 includes a main passage 1315a corresponding to the viewing window 1311, a distal passage 1315b located at a distal end of the main passage 1315a, and a proximal passage 1315c located at a proximal end of the main passage 1315a, and the force receiving portion 1321 includes a main force receiving portion 1321a connected to the indicating portion 1322, a distal force receiving portion 1321b protruding out of the main force receiving portion 1321a in the distal direction, and a proximal force receiving portion 1321c protruding out of the main force receiving portion 1321a in the proximal direction.

That is, the longitudinal section of the indicating component 132 in the axial direction of the circumcision anastomat 300 is "cross" -shaped, two ends (i.e., the indicating portion 1322) of the cross-shaped in the direction perpendicular to the axial direction are limited in the visible window 1311, two ends (i.e., the distal force receiving portion 1321b and the proximal force receiving portion 1321c) of the cross-shaped in the axial direction are limited in the channel 1315, the inner diameter of the channel 1315 is slightly larger than the outer diameters of the distal force receiving portion 1321b and the proximal force receiving portion 1321c, the limiting of the force receiving portion 1321 can be realized, and the force receiving portion 1321 is prevented from freely swinging in the channel 1315.

In the present embodiment, when the indicating portion 1322 moves from the initial position 1311a to the stop position 1311b, at least a part of the distal force-receiving portion 1321b is always located in the distal passage 1315b, that is, the distal passage 1315b always limits the force-receiving portion 1321 to prevent the indicating assembly 132 from being displaced.

Of course, when the indicating portion 1322 moves from the initial position 1311a to the stop position 1311b, at least a portion of the proximal force-receiving portion 1321c may be located in the proximal passage 1315c at all times, but not limited thereto.

In other embodiments, the force-receiving portion 1321 may only include the main force-receiving portion 1321a and the distal force-receiving portion 1321b, or the force-receiving portion 1321 only includes the main force-receiving portion 1321a and the proximal force-receiving portion 1321c, or the force-receiving portion 1321 only includes the main force-receiving portion 1321a, that is, the indicating assembly 132 is generally cylindrical, and at this time, the indicating assembly 132 may be prevented from being detached from the knob body 131 by other structures.

In this embodiment, the distal end of the channel 1315 is a through opening, the proximal end of the channel 1315 has a proximal end surface 13151, a through hole 13152 having an opening diameter smaller than the opening diameter of the channel 1315 is formed in the proximal end surface 13151, and the through hole 13152 communicates the channel 1315 with the outside.

An elastic member 1316 is arranged between the proximal end surface 13151 and the force receiving portion 1321, the elastic member 1316 always acts on the force receiving portion 1321, here, the elastic member 1316 is a spring, and the elastic member 1316 is always in a compression state and always acts on the force receiving portion 1321. The position of the knob assembly 13 in the initial state is closer to the initial position 1311a than in the cocked state.

The partial inner surface of the distal channel 1315b is provided with a threaded portion 13151b, the threaded portion 13151b is matched with the external thread 211 at the proximal end of the screw 21, so as to realize the matching of the knob assembly 13 and the screw 21, when the knob body 131 is rotated, the screw 21 can move relative to the knob body 131 through the interaction between the threaded portion 13151b and the external thread 211, that is, the screw 21 moves along the axial direction of the circumcision anastomat 300.

Next, the operation flow of the knob assembly 13 of the present embodiment will be briefly described.

When the glans assembly 200 and the circumcision stapler body 100 are not assembled together, the elastic member 1316 is in a compressed state, and the elastic member 1316 acts on the force receiving portion 1321 so that the distal end surface of the indicating portion 1322 abuts against the initial position 1311a of the visible window 1311.

When the foreskin tissue to be cut is fixed at the balanus seat 20 and the balanus seat assembly 200 and the circumcision anastomat body 100 are assembled with each other, the screw rod 21 extends into the channel 1315 of the knob body 131, and the proximal end face of the screw rod 21 contacts the distal end face of the stress part 1321, or a gap is formed between the proximal end face of the screw rod 21 and the distal end face of the stress part 1321.

Then, the knob body 131 is rotated, so that the screw rod 21 moves towards the direction close to the knob body 131, the screw rod 21 drives the force receiving portion 1321 to move in the channel 1315, the force receiving portion 1321 drives the indicating portion 1322 to gradually move from the initial position 1311a to the stop position 1311b until the indicating portion 1322 moves to be in a predetermined relative position with the marking portion 1312, the elastic member 1316 is further compressed, the circumcision anastomat 300 is in a cockable state, and at this time, an operator can perform a cutting and suturing operation on a foreskin tissue to be cut.

Here, the stop position 1311b may limit excessive rotation of the knob body 131 when the operator continues to turn the knob body 131 ignoring that the cockable state has been reached.

It should be noted that when the knob body 131 is rotated, the indicating assembly 13 can be rotated while moving along the axial direction of the circumcision anastomat 300, and of course, the indicating assembly 13 can only move along the axial direction of the circumcision anastomat 300.

When the percussion is completed, the knob body 131 is rotated in the reverse direction, so that the cut and sutured target tissue is separated from the balanus seat 20.

To sum up, the utility model discloses a knob subassembly 13 includes visual window 1311 and is located visual window 1311's instruction portion 1322, and whether the art person can confirm circumcision anastomat 300 through observing the relative position of instruction portion 1322 and mark portion 1312 and reachs the state of can firing, through audio-visual suggestion, can effectively avoid nail storehouse subassembly 40 and glans penis seat 20 closed not in place or closed tension, guarantees suitable nail shaping height, prevents the high hemorrhage that causes of nail shaping and excessively squeezes the postoperative recovery problem that causes.

Meanwhile, the viewing window 1311 includes a stop position 1311b, which may further prevent excessive compression of the foreskin tissue.

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

1. The utility model provides a knob subassembly for circumcision anastomat, its characterized in that, knob subassembly is including the knob body and the instruction subassembly of mutually supporting, the knob body includes the visual window, the visual window is including relative initial position and the stop position that sets up, it includes atress portion and instruction portion to instruct the subassembly, the atress portion drives under the exogenic action instruction portion by the initial position orientation stop position motion.

2. The knob assembly according to claim 1, wherein the knob body includes a channel in a middle portion, the force receiving portion is located in the channel, the viewing window communicates with the channel, and the indicating portion protrudes out of the force receiving portion toward the viewing window.

3. The knob assembly according to claim 2, wherein the force receiving portion protrudes out of the indicating portion in an extending direction of the channel.

4. The knob assembly according to claim 2, wherein the force receiving portion and the indicating portion are fixed to each other.

5. The knob assembly according to claim 4, wherein the indicating portion is disposed around the force receiving portion.

6. The knob assembly according to claim 2, wherein the knob body includes two knob portions symmetrically disposed and two indicating surfaces between the two knob portions, the visible window extending through the two indicating surfaces.

7. A circumcision anastomat comprises an anastomat body, a glans penis base and a lead screw for driving the glans penis base to move towards the anastomat body, and is characterized in that the anastomat body comprises a shell and a knob assembly according to any one of claims 2 to 6, the knob body is located at the near end of the shell, the knob body rotates relative to the lead screw to drive the glans penis base to move towards the anastomat body, and the lead screw extends to a channel and drives an indication portion to move through a stress portion.

8. The circumcision stapler according to claim 7, wherein the knob body is provided with a mark part corresponding to the outer surface of the visible window, when the mark part and the mark part are in a predetermined relative position, the stapler body and the glans base clamp the foreskin to be cut so that the circumcision stapler is in a cocked state.

9. The circumcision stapler according to claim 7, wherein an elastic member is provided between the proximal end face of the channel and the force-receiving portion, and the elastic member always acts on the force-receiving portion.

10. The circumcision stapler according to claim 7, wherein the channel comprises a main channel corresponding to the viewing window, and a distal channel located at the distal end of the main channel and a proximal channel located at the proximal end of the main channel, the force-receiving portion comprises a main force-receiving portion connected to the indicating portion, and a distal force-receiving portion protruding out of the main force-receiving portion in the distal direction and a proximal force-receiving portion protruding out of the main force-receiving portion in the proximal direction, and when the indicating portion moves from the initial position to the stopping position, at least a portion of the distal force-receiving portion is always located in the distal channel.