CN115414084A - Prepuce anastomat with sewing and cutting functions - Google Patents

Abstract

The present invention provides a foreskin stapler that stitches first and then incisions. The foreskin stapler comprises: a casing defines a receiving cavity, and one side of the casing forms an open end for suturing circumcision; a thimble is pivotally mounted on In the housing, the thimble member has a thimble cylinder and a thimble tube arranged on the rear side of the thimble cylinder, and the front end of the thimble cylinder is arranged towards the open surface; The ejector tube on the rear side of the knife, the annular cutting knife is coaxially mounted in the ejector tube, and the ejector tube is pivoted through the ejector tube; the handle is set through the housing, and the handles are respectively The first transmission mechanism and the second transmission mechanism are connected to the thimble tube and the top knife tube in transmission to drive the thimble tube and the top knife tube to move towards the open end, and the first transmission mechanism and the second transmission mechanism are integrally configured to be able to The thimble cylinder is urged to protrude out of the casing relative to the circular cutter in advance to realize the circumcision operation after the suturing work is completed; the permanent reset part is arranged between the handle and the casing.

Description

A kind of prepuce anastomat device that sews first and then cuts

technical field

The invention belongs to a foreskin stapler, in particular to a foreskin stapler which can realize sewing first and then cutting to effectively prevent prepuce hemorrhage.

Background technique

With the development of medicine and product research and development, more and more minimally invasive medical devices are used in urology and andrology clinical operations. Circumcision stapler is one of them. The application of circumcision stapler is compared with traditional circumcision. It has many advantages such as less intraoperative bleeding, shorter operation time, minimized manual operation errors, reduced postoperative infection, less postoperative pain, and quick functional recovery. However, when the existing circumcision stapler is actually used, bleeding and postoperative bleeding still occur.

When the existing circumcision stapler is in use, the circular cutter and the staples are fired synchronously, and the suturing and cutting are performed synchronously. If the circular cutter first cuts off the redundant foreskin, more bleeding will be caused.

Contents of the invention

In view of the above technical problems, the present invention provides a foreskin stapler capable of sewing first and then cutting, characterized in that the foreskin stapler includes:

A casing defining a receiving cavity, one side of the casing forming an open end for suturing circumcision operation;

A thimble piece, which is pivotally installed in the housing, the thimble piece has a thimble cylinder and a thimble tube arranged on the rear side of the thimble cylinder, and the front end of the thimble cylinder is arranged towards the open surface;

The cutter part has an annular cutter and a top knife tube formed on the rear side of the annular cutter, the annular cutter is coaxially pivoted in the ejector barrel, and the top knife tube pivots through the top Needle settings;

a handle, which is provided through the housing, and the handle is respectively connected to the thimble tube and the top knife tube through the first transmission mechanism and the second transmission mechanism to drive the thimble tube and the top knife tube to move towards the open end, and The first transmission mechanism and the second transmission mechanism are integrally configured to urge the thimble cylinder to protrude out of the housing relative to the annular cutter, so that the annular cutter starts the circumcision operation after the thimble member completes the sewing work;

The elastic restoring part is arranged between the handle and the shell.

Preferably, the handle has a free end protruding from the housing, a main body section penetrating through the housing, and a hinged end for hinged connection with the inside of the housing; The arm is connected by transmission to push the top knife tube to move horizontally.

Preferably, the handle has a first gear segment on the front side of the main body segment of the housing, the thimble tube has a second rack segment, and the first gear segment and the second rack segment pass through the first gear segment. A gear meshes with the second gear; preferably, the second gear meshing with the second rack segment is divided into a gear area and a stop area in the upper direction, and the gear area is used for meshing transmission with the second rack segment And the stop area is used to cooperate with the stop of the second rack segment, so that the thimble tube remains in position after reaching the predetermined position.

Preferably, the front end of the annular cutter is flush with the front end of the thimble cylinder, or the front end of the annular cutter is retracted inwardly relative to the front end of the thimble cylinder.

Preferably, the housing includes a horizontal housing arranged horizontally and a vertical housing extending downward relative to the horizontal housing, the handle is arranged on the front side of the vertical housing, and the handle has a The body has a natural state of an included angle and a triggered state of swinging toward the vertical housing.

As a preference, the left end of the horizontal housing forms an open end, and the thimble member and the cutter member are horizontally pivotally mounted in the horizontal housing; the right end of the horizontal housing has an opening for the glans seat and the ejector rod to pass through the thimble piece and cutter piece settings.

Preferably, the first transmission mechanism and the second transmission mechanism are respectively a first link mechanism and a second link mechanism, and the second link mechanism is integrally arranged on the far side of the first link mechanism.

Preferably, the first transmission mechanism includes a first connecting rod, a second connecting rod, and a third connecting rod, the first connecting rod is rotatably arranged at the hinged end of the handle, and the second connecting rod can It is rotatably arranged on the top knife, and the third connecting rod is rotatably arranged on the upper side of the housing, and the free ends of the first connecting rod, the second connecting rod and the third connecting rod are hingedly connected; the second transmission mechanism It includes a fifth connecting rod, a sixth connecting rod, and a seventh connecting rod, the fifth connecting rod is rotatably arranged at the hinged end of the handle, the sixth connecting rod is rotatably arranged at the thimble piece, and the The seventh connecting rod is rotatably arranged on the lower side of the housing, and the free ends of the fifth connecting rod, the sixth connecting rod and the seventh connecting rod are hingedly connected.

Preferably, the second transmission mechanism is a second link mechanism; preferably, the second transmission mechanism includes a fifth connecting rod, a sixth connecting rod, and a seventh connecting rod, and the fifth connecting rod is rotatably arranged on The hinged end of the handle, the sixth connecting rod is rotatably arranged on the thimble member, the seventh connecting rod is rotatably arranged on the lower side of the housing, the fifth connecting rod, the sixth connecting rod, The free end of the seventh connecting rod is hingedly connected.

The present invention also provides the above-mentioned operation method of the foreskin stapler, which is characterized in that the trigger handle, the handle cooperates with the first transmission mechanism to drive the thimble cylinder to extend in advance to suture the foreskin, and the handle cooperates with the second transmission mechanism to Stretch out the circular cutter to complete the work of circumcision after the staples complete the suturing work.

Compared with the treatment process of the existing stapler that cuts first and then sews or cuts at the same time, the circumcision stapler provided by the present invention can realize sew first and then cut, and can suture the uncut inner side of the foreskin first, and wait for the circumcision to be completely sutured. The excess foreskin is then cut. In addition, the stapler provided by the present invention can keep the staples in the state of pressing the foreskin all the time when cutting the foreskin, which can effectively prevent bleeding.

Description of drawings

FIG. 1 is a schematic structural view of the foreskin stapler provided in Embodiment 1 of the present invention;

2 is a schematic diagram of the rotation angle of the handle of the foreskin stapler provided in Embodiment 1 of the present invention;

Fig. 3 is the structural representation of another kind of foreskin stapler provided by the present invention;

Fig. 4 is a schematic structural diagram of another foreskin stapler provided in this embodiment.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "vertical", "horizontal", "inner", "outer" etc. are based on the drawings The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the scope of the present invention. limit. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Example 1

Please refer to Fig. 1, the embodiment of the present invention provides a foreskin stapler capable of sewing first and then cutting, which includes a housing 1, a thimble part 2, a cutter part 3, a handle 5 and an elastic reset part:

The casing 1 defines a housing chamber 100, one side of the casing 1 forms an open end 10 for suturing ring cutting operation, and the open end formed by the open end is used for the staples 7 and the cutting knife of the thimble member and the cutter member to extend. out to complete the circumcision of the foreskin;

The thimble part 2 is pivotally mounted in the housing cavity 100, the thimble part has a thimble cylinder 21 and a thimble tube 22 arranged on the rear side of the thimble cylinder 21, the front end of the thimble cylinder 21 faces the open end 10 Set, and its front end is used for installing staple 7;

The cutter part 3 has an annular cutter and a top knife tube 32 formed on the rear side of the annular cutter, and the annular cutter (not shown) is coaxially pivotally mounted in the ejector barrel 21, as shown in Figure 1 As shown, the top knife tube 32 is pivotally set through the thimble tube 22;

The handle 5 is arranged through the said housing, and the handle 5 is respectively connected with the thimble tube 22 and the ejector tube 32 through the first transmission mechanism and the second transmission mechanism to drive the thimble tube 22 and the ejector tube 32 independently. Move toward the open end direction, and finally realize that the annular cutter and the thimble cylinder protrude from the housing; and the first transmission mechanism and the second transmission mechanism are integrally configured to promote the thimble cylinder 21 to protrude from the shell relative to the annular cutter body so that the circumcision operation can be achieved after the suturing work is completed.

That is to say, the foreskin stapler provided by the present invention is compared with the existing foreskin staplers, it abandons the transmission circumcision suture method of cutting first and then sewing, and adopts a brand-new idea of sewing first and then cutting, which fundamentally prevents circumcision The bleeding caused during the period between cutting and suturing can effectively prevent bleeding.

The elastic resetting part is arranged between the handle and the casing, so that the handle can return to its original position automatically after the triggering work is completed.

There are many ways to realize the structure of the first transmission mechanism and the second transmission mechanism, for example, the gear transmission mode of transmission, the transmission mode of connecting rods, the combination of gears and connecting rods, etc., can be freely selected by those skilled in the art. , as long as it can realize that the annular cutter can be stretched out to complete the annular cutting work after the thimble cylinder completes the sewing work, that is, it can be ensured that the protruding sequence of the annular cutter and the thimble cylinder is carried out in an orderly manner; exemplary, in some of the present invention In the embodiment, the first transmission mechanism and the second transmission mechanism specifically adopt the following structural form: the handle 5 has a free end 51 protruding from the casing, a main body section 52 set through the casing, and a The hinged end 53 hinged inside the housing; the hinged end 53 is connected to the rear side of the top knife tube 32 through the swing arm 8 to push the top knife tube 32 to move horizontally; in this implementation, one end of the swing arm 8 is connected to the The handle is connected, and the other end forms an axially extending sliding chamber 81, and a sliding shaft 321 is formed on the top knife tube. The sliding shaft can be axially slidably arranged inside the sliding chamber, and the swinging arm is driven to swing by the rotation of the handle. Further drive the horizontal movement of the top knife tube; specifically, the two sides of the swing arm form a symmetrical sliding cavity 81, and correspondingly, the two sides of the top knife tube form a symmetrical sliding shaft 321, and the handle and the swing arm communicate with the sliding cavity through the sliding cavity. The cooperation of the shaft drives the horizontal movement of the top knife tube.

The handle 5 has a first gear segment 55 on the front side of the main body segment 52 inside the housing, the thimble tube 22 has a second rack segment 221, and the first gear segment 55 and the second rack segment 221 through the meshing transmission of the first gear 9 and the second gear 11; thus, the first gear section 55 meshes with the first gear 9, the first gear 9 meshes with the second gear 11, the second gear 11 and the second The engagement of the rack segment 221 triggers the horizontal movement of the thimble tube 22 toward the front side;

As above, since the top knife tube 32 stretches out from the thimble tube 11 and the swing arm 8 is formed in the second transmission mechanism (the first gear section 55 and the second rack section 221, the first gear 9 and the second gear 11) Rear side, because the speed that both advances is inconsistent, so when thimble cylinder 21 stretches out casing and sews, annular cutter has not stretched out casing yet.

It can be understood that when the ring cutter is pushed, since the ring cutter is directly driven forward by the firing handle, the angle of motion of the ring cutter is equal to the angle at which the firing handle turns; , when the firing handle turns over a certain angle, the position of the ring cutter should be at the plane position of the front end of the stapler body or at an appropriate distance behind, and should not exceed the front end position; in this embodiment, when the firing handle is fired, the ring cutter It should be 3mm beyond the front end to completely cut off the foreskin.

In some preferred embodiments, the second gear 11 meshing with the second rack segment 221 is divided into a gear area 111 and a stop area 112 in the circumferential direction, and the gear area 111 is used to communicate with the second rack segment 221 and the stopper area 112 . The first gear 9 is meshed for transmission, and the stop area 112 is used to stop and cooperate with the second rack segment 221. In this embodiment, the stop area 112 is formed in the circumferential direction of the second gear 11. Circular segment; so, please refer to Fig. 1 again, when the staple 7 reaches the plane of the front end of the stapler, the firing handle continues to rotate, the first gear segment 55 drives the first gear 9 to continue to rotate, and the first gear 9 drives the second gear 11 Continue to rotate until the stop zone 112 of the second gear 11 is just in contact with the first rack segment 221 of the thimble member 2, that is, there is no next tooth on the second gear 11 to engage and push at this time, only its outer circular arc surface After that, the second gear 11 will always maintain a tangent to the thimble piece 2, and continue to give a stable force to the thimble piece 2, so that the thimble piece will not retreat, and the staple 7 at the front end will continue to be squeezed The force can reduce the bleeding situation.

As shown in FIG. 1 , the housing 1 includes a horizontal housing 101 arranged horizontally and a vertical housing 102 extending downward relative to the horizontal housing, the handle 5 is arranged on the front side of the vertical housing 102 , And the handle 5 has a natural state with an included angle with the vertical casing and a trigger state of swinging toward the vertical casing;

The left end of the horizontal casing 101 constitutes an open end 10, and the thimble part 2 and the cutter part 3 are horizontally pivotally mounted in the horizontal casing; the right end of the horizontal casing has an opening for the glans penis and the ejector rod to pass through Ejector piece and cutter piece setting;

According to the foreskin stapler provided by the present invention, the present invention provides the following suturing method: push the staple 7 and the circular cutter to move forward through the firing handle 5, but because the two advancing speeds are different, the staple 7 will first contact the foreskin tissue, After the staples 7 are in place, the circular cutter will contact the foreskin tissue again for cutting;

The present invention provides the following exercise modes:

The manual firing handle pushes the staple 7 and the circular cutter to move forward, the firing handle pushes the gear set to rotate, the gear set engages to push the thimble tube, the staple 7 is placed at the front end of the thimble tube, and simultaneously pushes the staple 7 forward Movement; the firing handle pushes the top knife tube to move forward, and the front end of the top knife tube is connected with the ring cutter through the shape, which is also pushing the ring cutter to move forward at the same time.

In addition, the entire cutting and suturing movement of the foreskin stapler is realized by squeezing the handle. Due to the structure of the human hand, the rotatable angle of the firing handle is within 45°. The present invention selects a 35° as the firing power source.

When the firing handle pushes the staple 7, the first gear section on the handle drives the first gear to rotate, the first gear drives the second gear to rotate, and the second gear drives the thimble tube to rotate through the first gear section. According to the principle of gear transmission, the gear The linear velocity at the meshing point (the tangent position of the indexing circle) is equal.

At this time: the firing handle can be set as the firing angular velocity is W, the angular velocity of the pinion is _small as W, and the moving speed of the staple 7 is V _needle ;

According to the size specification of the stapler, the diameter of the indexing circle of the large gear of the handle is 30mm, the diameter of the indexing circle of the small gear is 10mm, and the same modulus meshes;

Available: 30/2*W＝10/2* _Wsmall ＝V _needle

15W = 5W _small = V _pin

Please refer to Fig. 2, according to the height requirements of the staple 7 of this product, the push distance of the staple 7 reaches the front plane position when the pushing distance is 4.5 mm. When the staple 7 is pushed 4.5 mm, the time taken is t, and the rotation angle of the firing handle is is θ;

V _pin *t=15W*t=4.5,

得出：θ＝17.189°so

Obtained: θ＝17.189°

Further, when pushing the circular cutter, since the circular cutter is directly driven forward by the firing handle, the angle of motion of the circular cutter is equal to the angle at which the firing handle turns; When the angle is 17.189°, the position of the annular cutter should be at the front plane of the main body of the stapler or at an appropriate distance behind, and should not exceed the front end. In this case, when the firing handle is fired, the circular cutter should exceed the front end by 3mm (this size is not limited to death) to completely cut off the foreskin;

Suppose the firing handle is rotated through 17.189° (at this time, the moving distance of the top knife is L), and the angle θ needs to be turned. When the rotation center is vertical to the center line of the top knife, the side angle is θ1, and the vertical height is H ,

According to the triangle formula:

From ②, we can get: L＝Htanθ1 ③

Substitute ③ into ① to get:

H tan(θ+θ1)＝3+Htanθ1

3＝Htan(θ+θ1)-Htanθ1

当在此案例中时，θ＝35°-17.189°＝17.811°，此时H约等于9.338mm。H decreases with the increase of tanθ1, and the minimum is infinitely close to 0 (there is little practical significance at this time). When tanθ1=0, H reaches the maximum, which is

When in this case, θ=35°-17.189°=17.811°, at this time H is approximately equal to 9.338mm.

Therefore, H should be within 9.338mm to achieve cutting.

In the stapler provided by the present invention, after the staple 7 reaches the front end plane, the circular cutter cuts. At this time, when the circular cutter cuts, the staple 7 is always in a compressed state, which can better prevent blood from flowing out.

Example 2

Please refer to Fig. 3, this embodiment is basically the same as Embodiment 1, the difference is that the first transmission mechanism and the second transmission mechanism used in this embodiment are the first linkage mechanism and the second linkage mechanism respectively, and the first linkage mechanism and the second linkage mechanism are used respectively. The two link mechanism is integrally arranged on the far side of the first link mechanism.

Exemplarily, the first transmission mechanism includes a first connecting rod 200, a second connecting rod 201, and a third connecting rod 202. The first connecting rod 200 is rotatably arranged at the hinged end 53 of the handle, so The second connecting rod 201 is rotatably arranged on the top knife member 32, the third connecting rod 202 is rotatably arranged on the upper side of the housing 1, the first connecting rod 200, the second connecting rod 201, the third The other end of the connecting rod 202 is hingedly connected.

The second transmission mechanism includes a fifth connecting rod 300, a sixth connecting rod 301, and a seventh connecting rod 303. The fifth connecting rod 300 is rotatably arranged at the hinged end 53 of the handle. The sixth connecting rod The rod 301 is rotatably arranged on the thimble tube 22, the seventh connecting rod 303 is rotatably arranged on the lower side of the housing 1, and the other ends of the fifth connecting rod 300, the sixth connecting rod 301, and the seventh connecting rod 303 are hinged. connect.

Example 3

For example, please refer to Fig. 4, this embodiment is basically the same as Embodiment 1, the difference is that the second transmission mechanism adopted in this embodiment adopts a second linkage mechanism,

The second transmission mechanism is the same as that of Embodiment 2.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation A specific feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (5)

1. a kind of foreskin stapler that sews first and then cuts, it is characterized in that, this foreskin stapler comprises: A casing (1), which defines a receiving cavity (100), and one side of the casing (1) forms an open end (10) for suturing ring cutting operation; A thimble piece (2), which is pivotally installed in the housing (1), the thimble piece (2) has a thimble cylinder (21) and a thimble tube (22) arranged on the rear side of the thimble cylinder (21), The front end of the thimble cylinder (21) is set towards the open end (10); The cutter (3) has an annular cutter and a top knife tube (32) formed on the rear side of the annular cutter. The annular cutter is coaxially pivotally mounted in the ejector cylinder (21), Knife tube (32) pivots through described thimble tube (22) and arranges; A handle (5), which is arranged through the housing (1), and the handle (5) is connected to the thimble tube (22) and the top knife tube (32) through the first transmission mechanism and the second transmission mechanism respectively To drive the thimble tube (22) and the top knife tube (32) to move towards the open end (10), and the first transmission mechanism and the second transmission mechanism are integrally configured to promote the thimble cylinder (21) relative to the annular cutting The knife protrudes from the housing (1) in advance, so that the ring cutter starts the ring cutting operation after the thimble member completes the sewing work; an elastic reset member, which is arranged between the handle (5) and the housing (1); The handle (5) has a free end (51) protruding from the housing, a main body section (52) set through the housing (1) and a hinged end (53) for hinged with the inside of the housing; the The hinged end (53) is connected to the rear side of the jacking knife tube (32) through a swing arm (8) to drive the jacking knife tube (32) to move horizontally; Described handle is positioned at the front side of the main body section of housing and has first gear segment (55), and described thimble tube (22) has second rack segment (221), and described first gear segment (55) and The second rack segments (221) are engaged in transmission through the first gear (9) and the second gear (11). 2. The circumskin stapler according to claim 1, characterized in that, the second gear (11) meshed with the second rack segment (221) is divided into a gear area (111) and a stop area ( 112), the gear area (111) is used to engage with the second rack segment (221) for transmission and the stopper area (112) is used to cooperate with the second rack segment (221) stop, so that the thimble tube ( 22) Keep positioning after reaching the predetermined position. 3. The circumcision stapler according to claim 1, characterized in that, the front end of the annular cutter is flush with the front end of the thimble cylinder (21), or the front end of the annular cutter is relative to the front end of the thimble cylinder (21). Indent inward. 4. The foreskin stapler according to claim 1, characterized in that, the housing comprises a horizontal housing (101) arranged horizontally and a vertical housing (102) extending downward relative to the horizontal housing (101) ), the handle (5) is arranged on the front side of the vertical housing (102), and the handle (5) has a natural state with an included angle with the vertical housing and a trigger for swinging towards the vertical housing state. 5. The foreskin stapler according to claim 5, characterized in that, the left end of the horizontal housing (101) forms an open end (10), and the thimble member (2) and the cutter member (3) are horizontally pivoted In the horizontal casing (101); the right end of the horizontal casing (101) has an opening for the glans seat and the push rod to pass through the thimble piece and the cutter piece.

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