CN216876471U - Low position rectum anastomat - Google Patents

Abstract

The utility model provides a low-position rectum anastomat, and relates to the technical field of medical instruments. The low-position rectum anastomat comprises a gun barrel, a connecting pipe is mounted at the front end of the gun barrel, a nail bin is arranged at the front end of the connecting pipe, a needle head assembly for rectum anastomosis is mounted at one end, away from the connecting pipe, of the nail bin, and a driving mechanism for pushing the needle head assembly is arranged in the gun barrel; the needle seat assembly is used for being inserted into the rectum and matched with the needle assembly to perform anastomosis on the cut rectum, and the needle seat assembly is arranged on the driving mechanism through a connecting piece and is positioned on the front side of the needle assembly. The low-position rectum anastomat provided by the utility model automatically anastomoses the low-position rectum cut off after the operation by utilizing the driving mechanism through the needle head assembly and the needle head seat assembly, has good anastomosis effect, strong external force resistance of the anastomosis joint and is not easy to break.

Description

Low position rectum anastomat

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a low-position rectum anastomat.

Background

The length of the whole rectum is about 12-15 cm, which is calculated from the anal margin, 5 cm can be divided into high rectal cancer, low rectal cancer and middle rectal cancer, and the common low rectal cancer is the rectal cancer 5-7 cm away from the anal margin. The low rectal cancer of 5-7 cm of rectal cancer accounts for more than 50% of the rectal cancer of Chinese.

In the treatment process, the rectum anastomosis operation is a common treatment method aiming at anorectal diseases clinically, can also reserve the lower front wall of the rectum with defecation reflex nerves to a great extent while treating diseases and excising focuses, furthest ensures that a patient can still normally defecate and urinate after the operation, and is mainly divided into two types: one is surgery for benign lesions, such as rectal mucotomy, and the other is surgery for malignant lesions, such as radical rectal resection. The two operations need to use the anastomat in the process, the healing time of the rectum anastomosis joint is about one week, the existing anastomat utilizes the simple anastomosis nail to perform anastomosis fixation, when external force is applied to the rectum anastomosis part, the suture nail easily cuts the rectum, the anastomosis is not firm, leakage and fracture are caused, and normal healing after the operation is influenced.

Therefore, there is a need to provide a new low position rectum anastomat to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a low-position rectum anastomat which has the advantages of good rectum anastomosis effect, difficulty in fracture and leakage and benefit for postoperative healing of low-position rectum operations.

The embodiment of the utility model is realized by the following steps:

a low-position rectum anastomat comprises a gun barrel, wherein a connecting pipe is installed at the front end of the gun barrel, a nail bin is arranged at the front end of the connecting pipe, a needle head assembly used for rectum anastomosis is installed at one end, away from the connecting pipe, of the nail bin, and a driving mechanism used for pushing the needle head assembly is arranged in the gun barrel;

the needle head seat assembly is inserted into the rectum and matched with the needle head assembly to perform anastomosis on the cut rectum, and the needle head seat assembly is arranged on the driving mechanism through a connecting piece and is positioned on the front side of the needle head assembly.

In some embodiments of the present invention, the needle assembly includes a needle housing, the front end of the needle housing is uniformly provided with a plurality of needle holes, the needle housing is connected with a plastic clamping seat in a clamping manner, the plastic clamping seat is in threaded connection with the nail bin, a pressing plate is slidably mounted in the needle housing, a suture needle is mounted on one side of the pressing plate close to the needle holes, the front end surface of the needle housing is adhered with a sponge strip, the sponge strip is annular and provided with through holes communicated with the plurality of needle holes, the front end surface of the needle housing is located on the outer side of the sponge strip and further provided with a plurality of arc-shaped protrusions, and the plurality of protrusions are matched with the needle base assembly.

In some embodiments of the present invention, the suture needle is U-shaped, and a needle head of the suture needle is conical and inserted into a corresponding needle head hole.

In some embodiments of the present invention, the needle base assembly includes a needle base housing, the needle base housing is connected to the driving mechanism through a connecting member, the needle base housing is provided with a through hole through which the suture needle passes, a limiting baffle is fixedly mounted at a front end of the through hole of the needle base housing, and a plurality of arc grooves adapted to the protrusions are formed at a tail end of the needle base housing.

In some embodiments of the present invention, the connecting member comprises a connecting end, the connecting end is connected with the inner side wall of the needle base housing through a plurality of plastic clamping blocks, the end of the connecting end is fixedly connected with an intermediate rod, one end of the intermediate rod, which is far away from the connecting end, is fixedly provided with a threaded rod, and the threaded rod is connected with the driving mechanism.

In some embodiments of the present invention, the driving mechanism includes a sliding rod, a pushing rod, a wrench, a spring, a pushing plate and an annular cutter, the sliding rod is rotatably installed in the gun barrel, the pushing rod is slidably installed on the sliding rod, the pushing plate is fixedly installed on the pushing plate, the pushing rod penetrates through the connecting pipe and extends into the nail bin, the annular cutter is installed on the pushing plate, the wrench is rotatably installed on the gun barrel, one end of the wrench is hinged to the tail end of the pushing rod, the spring is sleeved on the pushing rod, one end of the spring is fixedly connected to the pushing rod, and the other end of the spring is clamped on the connecting pipe.

In some embodiments of the utility model, one end of the slide rod close to the connecting pipe is provided with an internal threaded hole, the internal threaded hole is in threaded connection with the threaded rod, the other end of the slide rod penetrates through the gun barrel and is fixedly provided with a knob, and the knob is provided with anti-skid threads or is sleeved with a rubber sleeve.

In some embodiments of the utility model, the barrel is fitted with a safety switch at the rear end of the wrench to limit rotation of the wrench.

In some embodiments of the present invention, a handle is mounted on a side wall of the end of the barrel, and a plurality of finger grooves are formed on the handle.

In some embodiments of the utility model, the side wall of the barrel is provided with a viewing window, and a mark indicating the position of the driving mechanism is embedded in the viewing window.

The embodiment of the utility model at least has the following advantages or beneficial effects:

1. the driving mechanism is utilized to drive the push plate to drive the annular cutter to cut off the redundant rectum, and simultaneously the needle head seat shell and the connecting end are cut off, after the cut-off, the push plate pushes the needle head shell away from the plastic clamping seat, then the knob is rotated to draw the connecting end away from the needle head seat shell, and only the needle head seat shell, the needle head shell, the pressing plate, the suture needle and the sponge strip are reserved for anastomosis of the rectum;

2. when the needle head assembly is used for anastomosis after the needle head shell is in butt joint with the needle head seat shell, a plurality of bulges and arc grooves are utilized for matching, the cut rectum can be anastomosed into a fold shape, the anastomosis area of the rectum is increased, the rectum is anastomosed more firmly, the suture needle penetrates through the fractured rectum to be sutured by the aid of the pressing plate extruded by the push plate, and the rectum suture and the postoperative healing effect are better through sponge strip extrusion.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic overall structure diagram of a low position rectal anastomat provided in an embodiment of the utility model;

FIG. 2 is a schematic view of an internal structure of a low position rectal anastomat according to an embodiment of the present invention;

FIG. 3 is a schematic view of a needle assembly according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a needle base provided in an embodiment of the present invention;

FIG. 5 is a schematic view of another perspective structure of the needle mount according to the embodiment of the present invention;

fig. 6 is a partially enlarged view of a shown in fig. 2.

Reference numerals:

1. a barrel; 11. an observation window; 2. a connecting pipe; 3. a staple cartridge; 4. a needle assembly; 41. a needle housing; 411. a protrusion; 42. a plastic card holder; 43. pressing a plate; 44. a suture needle; 45. a sponge strip; 5. a needle hub assembly; 51. a needle base housing; 511. a through hole; 512. an arc groove; 52. A limit stop ring; 6. a connecting member; 61. connecting the end heads; 611. a plastic clamping block; 62. an intermediate lever; 63. a threaded rod; 7. a drive mechanism; 71. a slide bar; 711. a knob; 72. a push rod; 73. a wrench; 74. a spring; 75. pushing a plate; 76. a ring-shaped cutter; 8. a grip; 81. a finger groove; 9. a safety switch.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "vertical", "horizontal", "inner", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience and simplicity, but the indication or suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, "a plurality" represents at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" should be broadly construed, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

Referring to fig. 1 to 6, a low position rectum anastomat includes:

the gun barrel comprises a gun barrel 1, wherein a connecting pipe 2 is installed at the front end of the gun barrel 1, a nail bin 3 is arranged at the front end of the connecting pipe 2, a needle head assembly 4 for rectum anastomosis is installed at one end of the nail bin 3, which is far away from the connecting pipe 2, and a driving mechanism 7 for pushing the needle head assembly 4 is arranged in the gun barrel 1;

a needle seat assembly 5, the needle seat assembly 5 which is used for inserting into the rectum and is matched with the needle assembly 4 to carry out anastomosis on the cut rectum is arranged on a driving mechanism 7 through a connecting piece 6, and the needle seat assembly 5 is positioned at the front side of the needle assembly 4.

Need to explain: during the use, utilize actuating mechanism 7 to keep away from needle subassembly 4 with needle holder subassembly 5, then insert needle holder subassembly 5 and establish cracked rectum one end, needle subassembly 4 stays at cracked rectum other end, then utilize actuating mechanism 7 to stimulate needle holder subassembly 5 and needle subassembly 4 and be close to and dock, coincide cracked rectum, the back that coincide, utilize actuating mechanism 7 to cut off the rectum that coincide back to, then break away from the rectum, let the rectum coincide automatic biological healing, the anastomat is along with the automatic discharge of excrement after the healing.

Referring to fig. 2 and 3, the needle assembly 4 includes a needle housing 41, a plurality of needle holes are uniformly formed in the front end of the needle housing 41, a plastic clamping seat 42 is clamped in the needle housing 41, the plastic clamping seat 42 is in threaded connection with the nail bin 3, a pressing plate 43 is slidably installed in the needle housing 41, a suture needle 44 is installed on one side, close to the needle hole, of the pressing plate 43, a sponge strip 45 is adhered to the front end face of the needle housing 41, the sponge strip 45 is annular and is provided with through holes communicated with the plurality of needle holes, a plurality of circular arc-shaped protrusions 411 are further arranged on the outer side, located on the sponge strip 45, of the front end face of the needle housing 41, and the plurality of protrusions 411 are matched with the needle base assembly 5.

Need to explain: when the needle assembly 4 is used and is in butt joint with the needle base assembly 5, the rectum can be extruded into a fold shape by the bulge 411 at the front end of the needle shell 41, the contact area between the rectum and the needle shell 41 is increased, the rectum anastomosis is convenient to improve, then the extrusion pressing plate 43 pushes the suture needle 44 to penetrate and suture the butted rectum, and the sponge strip 45 is used for extruding and stabilizing the perforated part of the suture needle 44.

It should also be noted that: the sponge strip 45 is also impregnated with a disinfectant and is helpful for rectal repair, which facilitates disinfection of the suture needle 44 perforation, reduces infection and accelerates the healing speed of the rectal anastomosis.

Referring to fig. 2 and 4, the suture needle 44 has a U-shape, and a needle tip of the suture needle 44 has a conical shape and is inserted into a corresponding needle tip hole.

Need to explain: the conical needle head can conveniently penetrate through the rectum, then the U-shaped suture needle 44 penetrates through the rectum, and the needle head shell 41 and the needle head seat assembly 5 are locked by bending, so that the rectum anastomosis is completed, the anastomosis is firmer, and the rectum is not easy to loosen.

Referring to fig. 4 and 5, the needle base assembly 5 includes a needle base housing 51, the needle base housing 51 is connected to the driving mechanism 7 through a connecting member 6, the needle base housing 51 is provided with a through hole 511 through which the suture needle 44 passes, a limiting stop ring 52 is fixedly mounted at the front end of the needle base housing 51 located at the through hole 511, and the end of the needle base housing 51 is provided with a plurality of arc grooves 512 adapted to the protrusions 411.

The following description is required: when the needle head seat assembly 5 is used, the circular arc groove 512 of the needle head seat shell 51 is matched with the protrusion 411 to extrude and fix the rectum under the action of the driving mechanism 7 and the connecting piece 6, after extrusion, the suture needle 44 penetrates through the through hole 511 and contacts the limit stop ring 52, the suture needle 44 automatically bends, and the needle head seat shell 51 and the needle head shell 41 are locked together.

Referring to fig. 2, the connecting member 6 includes a connecting end 61, the connecting end 61 is connected to the inner sidewall of the needle holder housing 51 through a plurality of plastic blocks 611, the end of the connecting end 61 is fixedly connected with an intermediate rod 62, a threaded rod 63 is fixedly mounted at the end of the intermediate rod 62 opposite to the connecting end 61, and the threaded rod 63 is connected to the driving mechanism 7.

Need to explain: when the connecting piece 6 is used, the connecting end 61 can drive the needle holder housing 51 of the needle holder assembly 5 to extend into a broken rectum under the driving of the driving mechanism 7 through the plurality of plastic fixture blocks 611, after the connecting end is inosculated and cut off, the plurality of plastic fixture blocks 611 of the connecting end 61 and the needle holder housing 51 are cut off under the driving of the driving mechanism 7, and the connecting piece 6 is withdrawn from the rectum.

Referring to fig. 2 and 6, the driving mechanism 7 includes a sliding rod 71, a pushing rod 72, a wrench 73, a spring 74, a pushing plate 75 and an annular cutter 76, the sliding rod 71 is rotatably mounted in the barrel 1, the pushing rod 72 is slidably mounted on the sliding rod 71, the pushing plate 75 is fixedly mounted on the pushing rod 72 and extends into the magazine 3 through the connecting tube 2, the annular cutter 76 is mounted on the pushing plate 75, the wrench 73 is rotatably mounted on the barrel 1, one end of the wrench 73 is hinged to the end of the pushing rod 72, the spring 74 is sleeved on the pushing rod 72, one end of the spring 74 is fixedly connected to the pushing rod 72, and the other end of the spring 74 is clamped on the connecting tube 2.

The following description is required: when the driving mechanism 7 is used, the wrench 73 is buckled backwards, the wrench 73 drives the push rod 72 to slide forwards on the slide rod 71, the push rod 72 drives the push plate 75 to move forwards, the push plate 75 drives the annular cutter 76 to cut off redundant rectum and cut off the plastic fixture block 611, meanwhile, the push plate 75 contacts and extrudes the press plate 43 to move for stitching, and the spring 74 is used for quick resetting under the action of the spring 74 and automatically protects the push rod 72 to move.

Referring to fig. 2, one end of the sliding rod 71 close to the connecting tube 2 is provided with an internal threaded hole, the internal threaded hole is in threaded connection with the threaded rod 63, the other end of the sliding rod 71 penetrates through the barrel 1 and is fixedly provided with a knob 711, and the knob 711 is provided with anti-skid threads or is sleeved with a rubber sleeve.

Need to explain: here, the knob 711 is rotated to rotate the slide rod 71, the slide rod 71 is rotated to rotate the threaded rod 63, and the threaded rod 63 drives the connecting end 61 to extend and retract through the intermediate rod 62.

Referring to fig. 1 and 2, the barrel 1 is provided at the rear end of the wrench 73 with a safety switch 9 for limiting the rotation of the wrench 73.

The following description is required: the safety switch 9 is arranged, so that the spanner 73 can be conveniently protected, and the damage to the anastomat caused by collision is reduced.

Referring to fig. 1 and 2, a grip 8 is mounted on a side wall of the distal end of the barrel 1, and a plurality of finger grooves 81 are formed in the grip 8.

Need to explain: like this, be convenient for medical personnel to hold grip 8 and operate, whole grip 8 sets up according to artifical physique to set up finger groove 81 and make medical personnel's operation comfortable firm more.

Referring to fig. 1, the side wall of the barrel 1 is provided with a viewing window 11, and a mark indicating the position of the driving mechanism 7 is embedded in the viewing window 11.

Need to explain: facilitating observation through the observation window 11 when anastomotic severing.

The working principle of the low-position rectum anastomat is as follows:

when in use, the handle 8 is held by hand, the knob 711 is rotated to drive the sliding rod 71 to rotate, the sliding rod 71 is rotated to drive the threaded rod 63 to rotate, the threaded rod 63 drives the connecting end 61 to extend through the intermediate rod 62, the needle head seat assembly 5 is far away from the needle head assembly 4, then the needle head seat assembly 5 is inserted at one end of a broken rectum, the needle head assembly 4 is left at the other end of the broken rectum, then the knob 711 is reversed to pull the needle head seat assembly 5 and the needle head assembly 4 to be close to and butted, during the butting, the cut rectum can be anastomosed into a wrinkle shape by matching the plurality of bulges 411 and the arc grooves 512, the anastomotic area of the rectum is increased to enable the anastomosis to be firmer, the broken rectum is anastomosed, after the anastomosis, the safety switch 9 is released, the push rod 72 is driven by the wrench 73 to slide forwards on the sliding rod 71, and the push rod 72 drives the push plate 75 to move forwards, the push plate 75 drives the annular cutter 76 to cut off the redundant rectum and cut off the plastic fixture block 611, meanwhile, the push plate 75 contacts and extrudes the press plate 43 to move, the press plate 43 pushes the suture needle 44 to penetrate through the butted rectum and penetrate through the through hole 511 of the needle head seat shell 51, when the suture needle contacts the limit stop ring 52, the suture needle 44 is automatically bent, the needle head seat shell 51 and the needle head shell 41 are locked together to be sutured, the sponge strip 45 is utilized to extrude and stabilize the perforated part of the suture needle 44 to be sutured, then the knob is rotated to separate the connecting end 61 and the plastic fixture block 42 from the needle head shell 41, then the whole body is separated from the rectum, the rectum is subjected to anastomosis automatic biological healing, and the anastomat is automatically discharged along with excrement after healing.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A low position rectal stapler, comprising:

the gun barrel (1), a connecting pipe (2) is installed at the front end of the gun barrel (1), a nail bin (3) is arranged at the front end of the connecting pipe (2), a needle head assembly (4) for rectum anastomosis is installed at one end, away from the connecting pipe (2), of the nail bin (3), and a driving mechanism (7) for pushing the needle head assembly (4) is arranged in the gun barrel (1);

the needle seat assembly (5) is inserted into the rectum, is matched with the needle assembly (4) to be matched with the cut rectum, and is used for installing the needle seat assembly (5) on the driving mechanism (7) through the connecting piece (6), and the needle seat assembly (5) is positioned at the front side of the needle assembly (4).

2. The low-position rectum anastomat according to claim 1, wherein the needle head assembly (4) comprises a needle head shell (41), a plurality of needle head holes are uniformly formed in the front end of the needle head shell (41), a plastic clamping seat (42) is clamped on the needle head shell (41), the plastic clamping seat (42) is in threaded connection with the nail bin (3), a pressing plate (43) is arranged in the needle head shell (41) in a sliding mode, a sewing needle (44) is arranged on one side, close to the needle head holes, of the pressing plate (43), a sponge strip (45) is adhered to the front end face of the needle head shell (41), the sponge strip (45) is annular and is provided with through holes communicated with the plurality of needle head holes, a plurality of arc-shaped bulges (411) are further arranged on the outer side, located on the sponge strip (45), of the front end face of the needle head shell (41), and the bulges (411) are matched with the needle head seat assembly (5).

3. The low position rectal anastomat according to claim 2, wherein the suture needle (44) is U-shaped, and the needle head of the suture needle (44) is conical and inserted into the corresponding needle head hole.

4. The low position rectum anastomat according to claim 1 or 2, wherein the needle base assembly (5) comprises a needle base shell (51), the needle base shell (51) is connected with the driving mechanism (7) through a connecting piece (6), a through hole (511) for a suture needle (44) to pass through is formed in the needle base shell (51), a limiting stop ring (52) is fixedly installed at the front end of the needle base shell (51) located at the through hole (511), and a plurality of arc grooves (512) matched with the protrusions (411) are formed in the tail end of the needle base shell (51).

5. The low position rectum anastomat according to claim 4, wherein the connecting piece (6) comprises a connecting end head (61), the connecting end head (61) is connected with the inner side wall of the needle seat shell (51) through a plurality of plastic fixture blocks (611), the tail end of the connecting end head (61) is fixedly connected with an intermediate rod (62), one end of the intermediate rod (62) departing from the connecting end head (61) is fixedly provided with a threaded rod (63), and the threaded rod (63) is connected with the driving mechanism (7).

6. A low position rectal anastomat according to claim 1, characterized in that the driving mechanism (7) comprises a sliding rod (71), a push rod (72), a wrench (73), a spring (74), a push plate (75) and a ring-shaped cutting knife (76), the sliding rod (71) is rotatably mounted in the gun barrel (1), a push rod (72) is slidably arranged on the slide bar (71), a push plate (75) is fixedly arranged on the push rod (72) and extends into the nail bin (3) after penetrating through the connecting pipe (2), the push plate (75) is provided with an annular cutter (76), the wrench (73) is rotatably arranged on the gun barrel (1), one end of the wrench (73) is hinged with the tail end of the push rod (72), the spring (74) is sleeved on the push rod (72), one end of the spring (74) is fixedly connected with the push rod (72), and the other end of the spring (74) is clamped on the connecting pipe (2).

7. The low position rectum anastomat according to claim 6, wherein one end of the sliding rod (71) close to the connecting pipe (2) is provided with an internal threaded hole, the internal threaded hole is in threaded connection with the threaded rod (63), the other end of the sliding rod (71) penetrates through the gun barrel (1) and is fixedly provided with a knob (711), and the knob (711) is provided with anti-skid threads or is sleeved with a rubber sleeve.

8. A low position rectal anastomat according to claim 6, characterized in that the barrel (1) is fitted with a safety switch (9) at the rear end of the wrench (73) to limit the rotation of the wrench (73).

9. The low position rectum anastomat according to claim 1, wherein a handle (8) is arranged on the side wall of the tail end of the gun barrel (1), and a plurality of finger grooves (81) are arranged on the handle (8).

10. A low position rectal anastomat according to claim 1, characterized in that the side wall of the gun barrel (1) is provided with an observation window (11), and a mark indicating the position of the driving mechanism (7) is embedded in the observation window (11).

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