CN212382678U

CN212382678U - Anorectal anastomat

Info

Publication number: CN212382678U
Application number: CN202020759436.XU
Authority: CN
Inventors: 沈沛
Original assignee: Jiangsu Wanhong Medical Equipment Co ltd
Current assignee: Jiangsu Wanhong Medical Equipment Co ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2021-01-22
Anticipated expiration: 2030-05-09

Abstract

The utility model discloses an anorectal anastomat, which comprises a handle seat, a transmission component, a firing component and an osculating component; the transmission assembly comprises a screw rod arranged in the handle seat and an adjusting mechanism arranged at the tail end of the handle seat and connected with the tail end of the screw rod; the front end of the screw rod is fixedly provided with a nail abutting seat; the firing assembly comprises a movable handle arranged on the handle seat and a straight push rod sleeved on the screw rod; the osculating component comprises a nail pushing plate, a nail bin sleeve, a nail bin and an annular knife. The utility model discloses ejector pin piece and nail storehouse cover all adopt triangular supports structure, the clearance of pulling out of the tissue of excision when having promoted the operation, greatly increased operating space and operation field of vision, simultaneously the utility model discloses ejector pin piece, nail storehouse cover and nail storehouse all adopt the metal material to make, and the part rigidity is good, avoids producing at the operation in-process and warp, and convenient to use has improved the operation quality greatly.

Description

Anorectal anastomat

Technical Field

The utility model relates to the field of medical equipment, concretely relates to anus intestines anastomat.

Background

Anorectal hemorrhoids and fistula are commonly called hemorrhoids and are common and frequently encountered diseases specific to human beings. The general survey data show that the incidence rate of anorectal diseases is 59.1%, hemorrhoids account for 87.25% of all anorectal diseases, and internal hemorrhoids are the most common hemorrhoids and account for 52.19% of all anorectal diseases. Both men and women can get ill, the incidence rate of women is 67%, the incidence rate of men is 53.9%, the disease can be attacked at any age, and the disease gradually worsens with the increase of the age, so the theory of 'nine hemorrhoids for ten people' is provided.

The general surgical treatment includes traditional operations such as ligature, rubber ring ligation, hemorrhoid excision, etc. The operation is troublesome, the requirement on the clinical experience of doctors is high in the operation process, excessive bleeding can be caused by careless operation, the pain of patients is increased, the operation time is prolonged, the operation success rate is low, the incision is not flat and smooth, and the wound is not beautiful to suture. At present, the disposable anorectal anastomat is frequently used in the operation, so that the operation risk is greatly reduced. But the material of current disposable anorectal anastomat's nail storehouse, ejector pin piece, nail storehouse cover is plastics, in order to guarantee the intensity of part, structurally design for an annular part that has certain thickness and length mostly, only a plurality of traction holes have been seted up in the side, in order thoroughly to organize the excision, will treat the tissue of excision and draw into annular sword inner space as far as through the traction hole on the nail storehouse cover in the operation, because the field of vision is obstructed, the space is limited, the condition of internal tissue can't be accurately judged, the tissue volume that can bear simultaneously is littleer.

In order to achieve a good anastomosis effect, the anastomosis nail needs to have higher strength, the height of the formed nail needs to be consistent, and the shape of the nail is in a standard B shape, which has certain requirements on a nail forming system. At present, a nail bin and a nail pushing sheet are plastic parts, a nail pushing seat and an anastomosis nail are metal parts, namely five surfaces of the hexahedron of the anastomosis nail are made of high polymer materials, and only one surface of the hexahedron is made of metal materials. Anastomotic nail can produce reaction force to ejector pin piece in forming process, can compress the height of working of plastics to a certain extent, has influenced the uniformity of nail height that takes shape, and nail sometimes can produce the yawing force in taking shape promptly not take shape in the coplanar simultaneously, leads to appearing the unusual circumstances such as forked tail nail, bail (embedding between ejector pin piece and the nail storehouse), has influenced the anastomotic effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an anorectal anastomat, which improves the pull-out clearance of the tissue excised during the operation and increases the operation space and the operation visual field. Meanwhile, the nail bin and the nail pushing sheet are designed into metal parts, the strength of the parts is high, and an all-metal nail forming system (the hexahedron where the anastomosis nails are located is made of metal materials) can guide the formation of the anastomosis nails more effectively, and the heights of the anastomosis nails are consistent and are in the same plane.

Realize the utility model discloses the technical scheme of purpose is:

an anorectal anastomat comprises a handle seat, a transmission assembly, a firing assembly and a kiss-cutting assembly; the transmission assembly comprises a screw rod arranged in the handle seat and an adjusting mechanism arranged at the tail end of the handle seat and connected with the tail end of the screw rod; the front end of the screw rod is fixedly provided with a nail abutting seat; the firing assembly comprises a movable handle arranged on the handle seat and a straight push rod sleeved on the screw rod; the osculating component comprises a nail pushing sheet, a nail bin sleeve, a nail bin and an annular knife; the tail end of the nail pushing sheet is provided with a connecting pipe; the annular knife is coaxially and fixedly arranged at the front end of the nail pushing piece, the nail bin is fixedly arranged at the front end of the nail bin sleeve, and the nail bin sleeve is sleeved on the connecting pipe; the nail pushing sheet and the nail bin sleeve both adopt triangular support structures; the nail pushing sheet, the nail bin sleeve and the nail bin are all made of metal materials.

Furthermore, the nail pushing plate, the nail bin sleeve and the nail bin are all manufactured by adopting a powder metallurgy technology.

Furthermore, the connecting pipe is sleeved at the front part of the screw rod, and the tail end of the connecting pipe is fixedly connected with the front end of the straight push rod.

Further, an outer sleeve is arranged at the tail end of the nail bin; the outer sleeve is fixedly arranged at the front end of the handle seat

Further, the adjusting mechanism comprises an adjusting nut, and the tail of the screw rod is provided with a thread matched with the adjusting nut.

Further, the nail pushing sheet comprises a nail sheet, an annular nail pushing part, a first support frame and a nail pushing sheet inner core; three first support frames are uniformly arranged at the tail end of the nail pushing part; the annular nail pushing part is connected with the nail pushing sheet inner core through the first support frame.

Further, the front end face of the annular knife is higher than the front end face of the nail sheet.

Further, the nail bin sleeve comprises an annular sleeve, a second supporting frame and a nail bin sleeve inner core; three second support frames are uniformly arranged at the tail end of the annular sleeve; the annular sleeve is connected with the nail bin sleeve inner core through a second support frame.

Furthermore, a positioning boss is arranged on the nail bin; the nail bin sleeve is provided with a positioning groove matched with the positioning boss; the nail bin and the nail bin sleeve are fixedly connected through the positioning lug boss and the positioning groove.

Furthermore, the front end of the screw rod is provided with a guide rib; and the inner hole of the nail pushing sheet is provided with a guide groove matched with the guide rib.

Furthermore, a pin hole is formed in the front end of the screw rod; the nail abutting seat is fixedly installed with the pin hole through a rivet.

Furthermore, the nail abutting seat is made of metal materials.

Furthermore, the front end of the nail abutting seat is provided with a nail abutting seat cover cap.

Furthermore, a tightening ring is coaxially and fixedly arranged outside the front end of the handle seat.

Furthermore, a safety device used for limiting the action of the firing assembly is arranged on the handle seat.

Furthermore, an indication window is arranged on the handle seat.

By adopting the technical scheme, the utility model discloses following beneficial effect has:

(1) the utility model discloses ejector pin piece and nail storehouse cover all adopt triangular supports structure, have promoted the pull-out clearance of the tissue of excision when performing the operation, greatly increased operating space and operation field of vision, nail storehouse cover and ejector pin piece all design into metal parts, and the part rigidity is good, and the bulk strength is high, and non-deformable has improved the operation quality greatly, and the more exquisite of appearance is small and exquisite simultaneously.

(2) The utility model discloses nail storehouse, nail storehouse cover and ejector pin piece all adopt metal powder injection moulding technique to produce reduction in production cost.

(3) The utility model discloses coincide nail is in the forming process, and the nail groove that supports the nail seat is made with the inner chamber that the nail storehouse formed is metal material entirely, and more effectual direction coincide nail takes shape, makes coincide nail shaping highly uniform and in the coplanar, has reduced unfavorable condition such as oozing blood in the art, has further promoted the security of operation.

(4) The utility model discloses the nail storehouse cover designs metal parts, and the inner core that has high strength can guarantee to the inhomogeneous tissue of thickness keep stable balance's compression in the operation, sews up the uniformity in clearance, sews up effectually, has improved the security of operation.

(5) The utility model discloses be equipped with the location boss on the nail storehouse, the nail storehouse sheathe in be equipped with location boss assorted positioning groove, the fixed mounting nail storehouse of being convenient for and nail storehouse cover improve the assembly precision simultaneously.

(6) The utility model discloses the lead screw front end is equipped with the direction muscle, and the hole of ejector pin piece is equipped with and leads muscle assorted guide way, guarantees that the lead screw can be in the ejector pin piece directional slip.

(7) The utility model discloses support the nail seat and pass through rivet and lead screw fixed connection, guarantee the fastness of installation, appear supporting the nail seat and drop in avoiding performing the operation, reduce the operation risk.

(8) The utility model discloses support the nail seat front end and be equipped with and support the nail seat block, effectively protect and support the nail seat and be favorable to putting into of apparatus.

Drawings

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the internal structure of the handle seat of the present invention.

Fig. 3 is a schematic view of the structure of the nail pushing sheet of the present invention.

Fig. 4 is a schematic view of the structure of the nail bin of the present invention.

Fig. 5 is a schematic view of the structure of the nail bin sleeve of the present invention.

Fig. 6 is a schematic view of the installation of the nail supporting seat and the osculating component of the present invention.

The reference numbers in the drawings are as follows:

a handle seat 1;

the transmission assembly 2, the screw rod 21, the guide rib 211 and the adjusting mechanism 22;

a firing component 3, a movable handle 31 and a straight push rod 32;

the osculating component 4, a nail pushing sheet 41, a nail sheet 411, an annular nail pushing part 412, a first support frame 413, a nail pushing sheet inner core 414, a guide groove 415, a nail bin sleeve 42, an annular sleeve 421, a second support frame 422, a nail bin sleeve inner core 423, a nail bin 43, an annular knife 44 and a connecting pipe 45;

a nail abutting seat 5;

nail-propping seat cap 6

An outer sleeve 7;

a tightening ring 8;

a safety device 9.

Detailed Description

The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.

The utility model provides an anus intestines anastomat, ejector pin piece and nail storehouse cover all adopt triangle bearing structure, have the clearance between the support frame, can pull out the tissue that needs the excision during the operation from the support frame clearance, have increased operating space and operation field of vision, and ejector pin piece, nail storehouse cover and nail storehouse all adopt the metal material to make, and the part rigidity is good, and bulk strength is high, and non-deformable has improved the operation quality greatly, and the more exquisite of appearance is small and exquisite simultaneously. The technical solutions of the present invention are described in detail below with reference to the accompanying drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present invention are described in detail in the technical solutions of the present invention, and are not limited to the technical solutions of the present invention.

(example 1)

Referring to fig. 1, the powder metallurgy assembly anorectal anastomat of the embodiment comprises a handle seat 1, a transmission assembly 2, a firing assembly 3 and a osculating assembly 4.

The transmission assembly 2 comprises a screw rod 21 arranged in the handle seat 1 and an adjusting mechanism 22 arranged at the tail end of the handle seat 1 and connected with the tail end of the screw rod 21; the adjusting mechanism 22 comprises an adjusting nut, the front part of the screw rod 21 is provided with a guide rib 211, and the tail part of the screw rod 21 is provided with a thread matched with the adjusting nut; the front end of the screw rod 21 is fixedly provided with the nail supporting seat 5, the front end of the nail supporting seat 5 is provided with the nail supporting seat cap 6, the nail supporting seat 5 is effectively protected and favorable for putting in of instruments, the nail supporting seat 5 is made of metal materials, the front end of the screw rod 21 is provided with the pin hole, the nail supporting seat 5 is fixedly provided with the rivet and the pin hole, the installation firmness is guaranteed, the nail supporting seat 5 is prevented from falling off in an operation, and the operation risk is reduced. Preferably, a protective cover is arranged between the nail abutting seat 5 and the osculating component 4, so that the situation that the anastomosis nails in the osculating component 4 are exposed out of the surface of the nail bin 43 before the operation is performed, the nails are brought out by tissues before anastomosis, and the anastomosis is incomplete due to partial nail leakage and less nails, and the operation quality is influenced is effectively avoided.

The firing component 3 comprises a movable handle 31 arranged on the handle seat 1 and a straight push rod 32 sleeved on the screw rod 21; during firing, the movable handle 31 drives the straight push rod 32 to move forward along the screw rod 21.

The osculating component 4 comprises a nail pushing sheet 41, a nail bin sleeve 42, a nail bin 43 and an annular knife 44, wherein the nail pushing sheet 41, the nail bin sleeve 42 and the nail bin 43 are all made by adopting a powder metallurgy technology, the parts have good rigidity and high overall strength, are not easy to deform, the operation quality is greatly improved, meanwhile, the appearance is more exquisite and small, and the powder metallurgy technology is adopted, so that the production cost is reduced. The tail end of the nail pushing sheet 41 is provided with a connecting pipe 45; the front end of the connecting pipe 45 is provided with a step and is in interference fit with the nail pushing sheet 41; the annular knife 44 is coaxially and fixedly arranged at the front end of the nail pushing sheet 41; the nail bin sleeve 42 and the nail bin 43 are sequentially sleeved on the connecting pipe 45, and a positioning boss is arranged on the nail bin 43; the nail bin sleeve 42 is provided with a positioning groove matched with the positioning boss, and the nail bin 43 and the nail bin sleeve 42 are fixedly connected through the positioning boss and the positioning groove, so that the installation is convenient, and the assembly precision is improved. The connecting pipe 45 is sleeved at the front part of the screw rod 21, and the tail end of the connecting pipe 45 is fixedly connected with the front end of the straight push rod 32; the tail end of the nail bin sleeve 42 is provided with an outer sleeve 7; the outer sleeve 7 is fixedly arranged at the front end of the handle seat 1, and a tightening ring 8 is coaxially and fixedly arranged outside the front end of the handle seat 1.

The nail pushing sheet 41 and the nail bin sleeve 42 both adopt a triangular support structure, and a gap is formed between the support frames, so that the operation space and the operation visual field are increased while the overall dimension is not changed. The nail pushing sheet 41 comprises a nail sheet 411, an annular nail pushing part 412, a first support frame 413 and a nail pushing sheet inner core 414; the inner hole of the nail-pushing sheet inner core 414 is provided with a guide groove 415 matched with the guide rib 211, so that the screw rod 21 can slide in the nail-pushing sheet 41 in an oriented manner; the nail sheet 411 is fixedly arranged on the front end surface of the annular nail pushing part 412; three first supporting frames 413 are uniformly arranged at the tail end of the nail pushing part 412; the nail pushing part 412 is connected with the nail pushing sheet inner core 414 through a first support frame 413; the front end face of the annular knife 44 is higher than the front end face of the nail piece 411. The nail bin sleeve 42 comprises an annular sleeve 421, a second support frame 422 and a nail bin sleeve inner core 423, the nail bin sleeve 42 is designed to be a metal part, has high strength, can stably and evenly compress tissues with uneven thickness in an operation, and cannot deform the inner core 423, so that the consistency of a suture gap is ensured, the suture effect is good, and the safety of the operation is improved; three second support frames 422 are uniformly arranged at the tail end of the annular sleeve 421; the annular sleeve 421 is connected with the nail bin sleeve inner core 423 through a second supporting frame 422. This embodiment nail storehouse 43, nail storehouse cover 42 and ejector pin piece 41 are the metalwork, and intensity is big, and the structure attenuate, the wall thickness is for prior art will attenuate, can hold the space increase of annular sword 44, consequently the diameter of annular sword 44 can be done bigger for prior art, the diameter is coincide to the cutting of having increased the tissue, it exits the anastomotic stoma to be more favorable to the apparatus after the coincide, reduce the secondary damage to the anastomotic tissue when withdrawing from, nail storehouse cover inner core 423 height reduces simultaneously, guarantee that whole osculating subassembly has released more spaces, can hold more tissues that are excised.

The handle seat 1 is also provided with a safety device 9 for limiting the action of the firing assembly, so that the early firing can be prevented, the error is avoided, and the operation safety is improved; meanwhile, an indicating window is further arranged on the handle seat 1, a safe percussion position mark is marked on the indicating window, and an indicating needle matched with the indicating window is arranged in the handle seat 1, so that the operation safety is further improved.

The application method of the embodiment comprises the following steps: during operation, the tissue to be cut is firstly pulled by a suture line by using a tool, the protective cover is taken down, the nail abutting seat assembly is guided in, the nail abutting seat assembly comprises a nail abutting seat 5 and a nail abutting seat cover cap 6, the nail abutting seat assembly is made to penetrate into the upper end of the suture line, the adjusting nut is rotated anticlockwise, and the nail abutting seat 5 is driven to be far away from the nail bin 43. The tissue to be excised is drawn between the anvil 5 and the cartridge 43 by means of sutures and tightened, drawing the tissue to be excised as much as possible into the inner space of the annular knife 44. The adjusting nut is rotated clockwise to draw the distance between the nail abutting seat 5 and the nail bin 43, so that the indicating needle in the handle seat 1 enters the safe firing position of the indicating window. The safety device 9 of the handle seat 1 is opened, the movable handle 31 is pressed, the straight push rod 32 is pushed to move forwards to drive the connecting pipe 45 to move forwards, the nail pushing sheet 41 is fixedly installed at the front end of the connecting pipe 45, the annular knife 44 is fixedly installed at the front end of the nail pushing sheet 41, when the annular knife 44 cuts the tissue, the nail pushing sheet 41 pushes out the anastomotic nails to the nail grooves corresponding to the nail propping seats 5, the anastomotic nails are bent into a B shape under the guidance of the nail grooves, the anastomat is kept in a closed state for at least more than 30 seconds after being triggered to help hemostasis, then the adjusting nut is unscrewed anticlockwise for 2-3 circles, the anastomat is withdrawn, and the operation is finished, so that the tissue excision and the.

The utility model discloses anastomotic nail is in the forming process, and the nail groove that supports nail seat 5 and the inner chamber and the ejector pin piece 41 that nail storehouse 43 formed are all made metal material, and more effective direction anastomotic nail takes shape, makes anastomotic nail shaping highly uniform and in the coplanar, has reduced unfavorable condition such as oozing blood in the art, has further promoted the security of operation.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. An anorectal anastomat is characterized in that: comprises a handle seat (1), a transmission component (2), a firing component (3) and a kiss-cutting component (4); the transmission assembly (2) comprises a screw rod (21) arranged in the handle seat (1) and an adjusting mechanism (22) arranged at the tail end of the handle seat (1) and connected with the tail end of the screw rod (21); the front end of the screw rod (21) is fixedly provided with a nail abutting seat (5); the firing assembly (3) comprises a movable handle (31) arranged on the handle seat (1) and a straight push rod (32) sleeved on the screw rod (21); the osculating component (4) comprises a nail pushing sheet (41), a nail bin sleeve (42), a nail bin (43) and an annular knife (44); the tail end of the nail pushing sheet (41) is fixedly provided with a connecting pipe (45); the annular knife (44) is coaxially and fixedly arranged at the front end of the nail pushing sheet (41), the nail bin (43) is fixedly arranged at the front end of the nail bin sleeve (42), and the nail bin sleeve (42) is sleeved on the connecting pipe (45); the nail pushing sheet (41) and the nail bin sleeve (42) both adopt triangular support structures; the nail pushing sheet (41), the nail bin sleeve (42) and the nail bin (43) are all made of metal materials.

2. The anorectal stapler of claim 1, wherein: the nail pushing sheet (41), the nail bin sleeve (42) and the nail bin (43) are all manufactured by adopting a powder metallurgy technology.

3. The anorectal stapler of claim 1, wherein: the connecting pipe (45) is sleeved at the front part of the screw rod (21), and the tail end of the connecting pipe (45) is fixedly connected with the front end of the straight push rod (32).

4. The anorectal stapler of claim 1, wherein: the tail end of the nail bin (43) is provided with an outer sleeve (7); the outer sleeve (7) is fixedly arranged at the front end of the handle seat (1).

5. The anorectal stapler of claim 1, wherein: a positioning boss is arranged on the nail bin (43); the nail bin sleeve (42) is provided with a positioning groove matched with the positioning boss; the nail bin (43) and the nail bin sleeve (42) are fixedly connected through the positioning lug bosses and the positioning grooves.

6. The anorectal stapler of claim 1, wherein: the front end of the screw rod (21) is provided with a guide rib (211); the inner hole of the nail pushing sheet (41) is provided with a guide groove (415) matched with the guide rib (211).

7. The anorectal stapler of claim 1, wherein: the front end of the screw rod (21) is provided with a pin hole; the nail abutting seat (5) is fixedly installed with the pin hole through a rivet.

8. The anorectal stapler of claim 1, wherein: the front end of the nail abutting seat (5) is provided with a nail abutting seat cap (6).