CN219613942U - Purse-string anastomosis stitching instrument - Google Patents

Abstract

The utility model discloses a purse-string anastomosis stitching instrument, which belongs to the field of medical appliances and comprises a cutter body, a cutter clamp and a tubular shell; the surgical incision forceps are characterized by comprising an anastomosis part, a purse part and a cutting part, wherein one end of the incision forceps, which is close to an execution position in an operation, is the front end; the opposite end is the rear end; the cutter body is arranged at the rear end of the tubular shell; the severing portion is disposed between the pouch portion and the anastomosis portion.

Description

Purse-string anastomosis stitching instrument

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a purse-string anastomosis stitching instrument.

Background

At present, the gastrointestinal tract diseases are treated in a surgical operation mode in many cases, the intestinal tract is required to be cut off in an operation, a part of the intestinal tract is sutured, and a part of the intestinal tract is used for realizing purse string operation, but a plurality of surgical instruments are adopted in clinic at present to finish the suturing of the intestinal tract by utilizing a linear anastomosis instrument in a shape, the cutting off after suturing and the purse string forceps after cutting off act, once the intestinal tract is cut off in the whole operation process, the risk that gastrointestinal fluids and the like have corrosive digestive fluid flow to the abdominal cavity of a patient is caused, and then the postoperative abdominal cavity pollution risk in the operation is increased. Therefore, the related operation needs to avoid the flow of intestinal juice, and the subsequent operation needs to be performed after the leakage-proof treatment is performed on the intestinal canal, which results in long operation time in the whole process and increased operation risk.

Therefore, there is a need for a method for effectively solving the above technical problems, and completing the process of effectively treating two sections of intestinal tracts simultaneously in the process of cutting the intestinal tracts, so as to save the operation time to the greatest extent and ensure the operation safety.

The present utility model addresses the above-described problems by providing a pouch-anastomosis stapler.

Disclosure of Invention

In order to overcome the problems in the background art, the utility model provides a purse-string anastomosis stitching instrument.

A purse-string anastomosis stapler comprises a cutter body, a cutter clamp and a tubular shell; the cutting forceps comprise an anastomosis part, a purse part and a cutting part, and one end of the cutting forceps, which is close to the execution position in operation, is the front end; the opposite end is the rear end; the cutter body is arranged at the rear end of the tubular shell; the severing portion is disposed between the pouch portion and the anastomosis portion.

Further, the cutting forceps are an integral forceps body, and the anastomotic part, the purse part and the cutting part are correspondingly arranged on the forceps body.

Further, the cutter body is a handle with a trigger;

further, the anastomosis part comprises an anastomosis forceps structure, an anastomosis nail box and a first push rod, the anastomosis forceps structure comprises a first anastomosis forceps and a second anastomosis forceps, the anastomosis nail box comprises a box body, staples and a push rod seat, the box body is provided with a first staple outlet, a first sliding rail and a first staple groove, the first anastomosis forceps is arranged at the upper end of the second anastomosis forceps, a staple pressing groove corresponding to the stapling position inside the staple box is arranged at one side of the second anastomosis forceps corresponding to the first anastomosis forceps, the push rod seat is provided with an inclined surface, one end of the push rod seat is connected with the sliding rail, the other end of the push rod seat is connected with the first push rod, and when the first push rod moves to one side close to the cutting forceps, the push rod seat is pushed to move on the sliding rail and the staples are extruded out of the staple groove by the inclined surface;

further, the purse-string part comprises a purse-string clamp structure, a second push rod and a stitching component, the purse-string clamp structure comprises a first purse-string clamp and a second purse-string clamp, the second purse-string clamp is arranged at the lower end of the first purse-string clamp, the stitching component comprises a positioning nail, a suture line and a purse-string nail box, the purse-string nail box is arranged on two opposite side surfaces of the first purse-string clamp and the second purse-string clamp, a second sliding rail, a second nail outlet and a second nail groove are arranged in the purse-string nail box, the positioning nail is arranged in the second nail groove, the suture line comprises a wire harness and a connector, the wire harness is arranged on one side of the positioning nail close to the second nail outlet, and detachable connection is realized by arranging a connecting block on one side of the second push rod far away from the cutter and one side of the first push rod far away from the cutter;

further, the cutting part is arranged between the purse part and the anastomosis part, the cutting part comprises a push knife groove, a push knife bar and an execution knife, the execution knife is arranged in the push knife groove, one end of the push knife bar is connected with the execution knife, the other end of the push knife bar is connected with the connecting block, the connecting block is connected with the cutter body, and the control of the connecting block and the control of the execution part are realized by operating the cutter body.

Further, the purse string nail box is provided with a clamping hole at a position close to the front end, the wire harness penetrates through the clamping hole, the connector is connected with the clamping hole in a clamping mode, when the first purse string forceps are closed with the second purse string forceps, the connectors on two sides can be connected in an inserting mode, the suture line is used for hooking the intestinal tract when the intestinal tract is clamped, and follow-up operation is convenient to perform.

Further, the inside of joint hole is equipped with seal structure, seal structure includes seal groove and closure plate, seal groove with closure plate sliding connection, the closure plate is used for providing spacingly for the connector, prevents that the connector from misconnecting.

Further, the sealing plate is provided with a wire passing hole through which the wire harness passes, and the size of the wire passing hole is not large enough to the area of any section of the connector.

Further, the closing groove is arranged from the position of the clamping hole to the direction close to the tubular shell and penetrates out of the surface of the purse-string nail box so as to be provided with a linkage structure of the closing plate.

Further, the sealing plate is arranged on the cutter body in a penetrating way, and a pull ring is arranged on the part of the sealing plate penetrating out of the cutter body.

Further, a spring is arranged between the sealing plate and the sealing groove, the spring pushes the sealing plate to seal the clamping hole, when the pull ring is pulled, the sealing plate moves and exposes the clamping hole, and at the moment, the connector loses limit.

Preferably, the connector comprises at least one boss provided with symmetrical buckles, and the connectors on two sides are easy to be connected in a clamping manner when the connectors are in butt joint.

Preferably, the connector includes at least one barb structure for facilitating snap connection when the connectors on both sides are mated.

Further, the tubular housing includes a first tubular housing proximate the cutting pliers and a second cutting pliers proximate the cutting pliers body, the first tubular housing and the second tubular housing being slidably connected.

Preferably, the first tubular shell is provided with a screwing block at one end close to the second tubular shell, the second tubular shell is provided with a screwing groove at one end close to the first tubular shell, and the screwing block is in sliding connection with the screwing groove.

Preferably, the first tubular shell is provided with external threads at one end close to the second tubular shell, the second tubular shell is provided with internal threads at one end close to the first tubular shell, and the first tubular shell is connected with the second tubular shell through bolts.

Further, the foremost end of the first anastomotic forceps and the foremost end of the second anastomotic forceps are respectively provided with a first slope surface at opposite sides, and the arrangement is convenient for the anastomotic forceps structure to clamp the intestinal section under the condition of different opening and closing degrees.

Further, the foremost end of the first purse string forceps and the foremost end of the second purse string forceps are provided with second sloping surfaces on opposite sides, and the arrangement is convenient for the purse string forceps to clamp the intestinal section under the condition that the opening and closing degrees are different.

Further, a protective shell is arranged on the outermost layer of the cutting forceps, and the anastomosis part and the purse part are fixedly connected with the protective shell respectively.

Further, be equipped with the hinge between the protective housing with the tubular shell, the first end of hinge with the protective housing rotates to be connected, the second end of hinge with the tubular shell rotates to be connected, and this setting can effectively improve the degree of freedom of cutting and grafting pincers in the patient.

Further, the first end of the hinge is provided with a rotating chute, the second end of the hinge is symmetrically provided with a flange, the hinge is further provided with a through hole in a penetrating mode, and the arrangement is convenient for realizing movement of the control assembly between the tubular shell and the protective shell.

Further, one end of the tubular shell, which is close to the protective shell, is provided with at least one lug, and the lug is rotationally connected with the flange and is used for realizing bending rotation of the hinge piece and the tubular shell.

Further, the positioning nail comprises at least one nail leg, and the at least one nail leg is provided with a plurality of hooks.

Further, the anastomotic nail box comprises a box body, anastomotic nails and a nail pushing seat, and the structure of the anastomotic nail box is the same as that of the anastomotic nail box of the traditional linear anastomat.

Further, the cutter body is a handle with a trigger, and the structure of the cutter body is the same as that of the handle of the conventional linear anastomat.

Further, a distance at least equivalent to the thickness of the intestinal wall remains on the side of the first purse string forceps opposite to the second purse string forceps after closure, and a distance at least equivalent to the thickness of the intestinal wall remains on the side of the first anastomosis forceps opposite to the second anastomosis forceps after closure.

The utility model has the beneficial effects that:

(1) The pouch part and the anastomosis part are combined to realize the closing suture of one side intestinal section and the controllable opening and closing of the other side intestinal section.

(2) By arranging two sections of suture lines with connectors on the purse string part, the intestinal tract close to the purse string part can carry out purse string suture operation under the condition of not being sectioned, thereby effectively avoiding the condition of intestinal fluid outflow; the articulation piece is arranged, so that the degree of freedom of the cutter is more than that of the current common suture equipment, and the cutter is more flexible in the operation process.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;

FIG. 3 is a schematic view showing the structure of the executing knife retracted in the push knife slot;

FIG. 4 is a schematic view of the structure of the present utility model in which the executive knife extends out of the pushing groove;

FIG. 5 is a schematic partial cross-sectional view of a second purse-string forceps according to the utility model;

FIG. 6 is a schematic view of the structure of the portion of the clamping hole of the present utility model;

fig. 7 is a schematic cross-sectional view of a portion of the clamping hole of the present utility model.

FIG. 8 is a schematic partial cross-sectional view of a cutting pliers according to the present utility model;

FIG. 9 is a schematic view of the structure of the hinge of the present utility model in which the hinge is located;

FIG. 10 is a schematic view of the structure of the hinge of the present utility model in which the hinge is located;

FIG. 11 is a schematic view showing a partial structure of a junction between a first tubular shell and a second tubular shell according to the present utility model;

FIG. 12 is a schematic view of the structure of the portion of the main body of the present utility model;

in the figure, 1, a cutting pliers; 101. a first anastomosis forceps; 102. a second anastomosis forceps; 103. a first purse-string forceps; 104. a second purse-string forceps; 105. a suture; 1051. a connector; 1052. a wire harness; 106. positioning nails; 107. a push broach slot; 108. executing a knife; 109. a purse-string magazine; 1091. a second nail outlet; 1092. a clamping hole; 1093. a closing plate; 10931. a spring; 10932. a wire through hole; 10933. a pull ring; 1094. a second slide rail; 1095. a second staple groove; 1096. closing the groove; 110. a second push rod; 111. a protective shell; 1111. a boss; 2. a first tubular shell; 201. a hinge; 2011. rotating the chute; 202. a flange; 203. a tab; 204. screwing the block; 3. a second tubular shell; 301. a screwing groove; 4. a cutter body.

Detailed Description

The following detailed description of the embodiments of the present utility model will be made more apparent to those skilled in the art from the following detailed description, in which the utility model is embodied in several, but not all, embodiments of the utility model. The utility model may be embodied or applied in other specific forms and features of the following examples and examples may be combined with each other without conflict, all other examples being contemplated by those of ordinary skill in the art without undue burden from the present disclosure, based on the examples of the utility model.

A purse-string anastomosis stapler comprises a cutter body 4, a cutter clamp 1, a tubular shell and a control component; the cutter body 4 is a handle with a trigger; the cutting and connecting forceps 1 is divided into an anastomotic part, a pouch part and a cutting part, one end of the cutting and connecting forceps 1, which is close to an execution position in operation, is the foremost end, the anastomotic part comprises an anastomotic forceps structure, an anastomotic nail box and a first pushing rod, the anastomotic forceps structure comprises a first anastomotic forceps 101 and a second anastomotic forceps 102, the anastomotic nail box comprises a box body, anastomotic nails and a nail pushing seat, the box body is provided with a first nail outlet, a first sliding rail and a first nail groove, the first anastomotic forceps 101 are arranged at the upper end of the second anastomotic forceps 102, one side of the second anastomotic forceps 102, which corresponds to the position of the anastomotic nails inside the nail box, is provided with a pressing groove, one end of the nail pushing seat is connected with the sliding rail, the other end of the nail pushing seat is connected with the first pushing rod, and when the first pushing rod moves towards one side close to the cutting and connecting forceps 1, the nail pushing seat is pushed on the sliding rail and the nail is extruded out of the nail groove by the inclined surface; the purse-string part comprises a purse-string forceps structure, a second push rod 110 and a suture assembly, the purse-string forceps structure comprises a first purse-string forceps 103 and a second purse-string forceps 104, the second purse-string forceps 104 is arranged at the lower end of the first purse-string forceps 103, the suture assembly comprises a positioning nail 106, a suture line 105 and a purse-string nail box 109, the purse-string nail box 109 is arranged on two opposite side surfaces of the first purse-string forceps 103 and the second purse-string forceps 104, a second sliding rail 1094, a second nail outlet 1091 and a second nail groove 1095 are arranged in the purse-string nail box 109, the positioning nail 106 is arranged in the second nail groove 1095, the suture line 105 comprises a wire harness 1052 and a connector 1051, the wire harness 1052 is arranged on one side of the positioning nail 106 close to the second nail outlet 1091, and one side of the second push rod 110 away from the cutter and one side of the first push rod away from the cutter are detachably connected through a connecting block; the cutting part is arranged between the pouch part and the anastomosis part, the cutting part comprises a push knife groove 107, a push knife bar and an executing knife 108, the executing knife 108 is arranged in the push knife groove 107, one end of the push knife bar is connected with the executing knife 108, the other end of the push knife bar is connected with a connecting block, the connecting block is connected with the cutter body 4, and the control of the connecting block and the control of the executing part are realized by operating the cutter body 4.

More preferably, the purse-string nail box 109 is provided with a clamping hole 1092 near the front end, the wire harness 1052 passes through the clamping hole 1092, the connector 1051 is connected with the clamping hole 1092 in a clamping manner, when the first purse string forceps 103 and the second purse string forceps 104 are closed, the connectors 1051 on two sides can be connected in a plugging manner, and the suture 105 hooks the intestinal tract when the intestinal tract is clamped, so that the follow-up operation is convenient to execute. The inside of joint hole 1092 is equipped with enclosed construction, and enclosed construction includes enclosed groove 1096 and closure plate 1093, and enclosed groove 1096 and closure plate 1093 sliding connection, closure plate 1093 are used for providing spacingly for connector 1051, prevent that connector 1051 from misconnecting. The closing plate 1093 is provided with a wire passing hole 10932 through which the wire harness 1052 can pass, and the size of the wire passing hole 10932 is not larger than the area of any section of the connector 1051. Reference is made to figures 3, 4, 5, 6, 7.

In a more preferred embodiment, the closing groove 1096 is provided in a direction approaching the tubular case from the position of the engagement hole 1092 and penetrates the surface of the pocket magazine 109, so that the interlocking structure of the closing plate 1093 is provided, see fig. 5, 7 and 8.

In a more preferred embodiment, the sealing plate 1093 is disposed through the adaptor body 4, a pull ring 10933 is disposed on a portion of the sealing plate 1093 extending out of the adaptor body 4, a spring 10931 is disposed between the sealing plate 1093 and the sealing groove 1096, and the spring 10931 pushes the sealing plate 1093 to seal the clamping hole 1092, and when the pull ring 10933 is pulled, the sealing plate 1093 moves and exposes the clamping hole 1092, and the connector 1051 is lost to limit, as shown in fig. 7 and 12. The connection modes of the connector 1051 include, but are not limited to: the connector 1051 comprises at least one boss 1111 provided with symmetrical buckles, and the connectors 1051 on two sides are easy to be connected in a clamping way when being butted; alternatively, the connector 1051 includes at least one barb structure that facilitates snap connection when the connectors 1051 on both sides are mated.

In a more preferred embodiment, the tubular shell comprises a first tubular shell 2 adjacent to the cutting nipper 1 and a second cutting nipper 1 adjacent to the main body of the cutting nipper 1, the first tubular shell 2 and the second tubular shell 3 being slidingly connected, with reference to fig. 2. The connection manner of the first tubular shell 2 and the second tubular shell 3 includes, but is not limited to: the first tubular shell 2 is provided with a screwing block 204 at one end close to the second tubular shell 3, the second tubular shell 3 is provided with a screwing groove 301 at one end close to the first tubular shell 2, and the screwing block 204 is in sliding connection with the screwing groove 301, referring to fig. 11; alternatively, the first tubular casing 2 is provided with external threads at an end close to the second tubular casing 3, the second tubular casing 3 is provided with internal threads at an end close to the first tubular casing 2, and the first tubular casing 2 is bolted to the second tubular casing 3.

More preferably, the foremost end of the first anastomotic forceps 101 and the foremost end of the second anastomotic forceps 102 are provided with a first slope on opposite sides, which facilitates the clamping of the intestinal section by the anastomotic forceps structure under the condition of different opening and closing degrees. The foremost end of the first purse-string forceps 103 and the foremost end of the second purse-string forceps 104 are provided with second sloping surfaces on opposite sides, and the arrangement is convenient for the purse-string forceps to clamp the intestinal tract under the condition that the opening and closing degrees are different, and reference is made to fig. 1, 2, 3 and 4.

In a more preferred embodiment, the outermost layer of the cutting forceps 1 is provided with a protective shell 111, and the anastomosis part and the pouch part are fixedly connected to the protective shell 111, respectively, see fig. 3, 4 and 9.

More preferably, a hinge 201 is disposed between the protective housing 111 and the tubular housing, a first end of the hinge 201 is provided with a rotating chute 2011, the protective housing 111 is provided with a boss 1111, the rotating chute 2011 is rotationally connected with the boss 1111, and a second end of the hinge 201 is rotationally connected with the tubular housing, which can effectively improve the degree of freedom of the cutting forceps 1 in the patient. The second end of the hinge 201 is symmetrically provided with a flange 202, and the hinge 201 is further provided with a through hole therethrough, which facilitates movement of the control assembly between the tubular housing and the protective shell 111, see fig. 9, 10.

More preferably, the tubular shell is provided with at least one tab 203 at the end near the protective shell 111, the tab 203 being in rotational connection with the flange 202 for effecting a bending rotation of the hinge 201 with the tubular shell, see fig. 9, 10.

More preferably, the positioning pin 106 comprises at least one pin, and at least one pin is provided with hooks, see fig. 5 and 8.

In a more preferred embodiment, the anastomotic nail box comprises a box body, anastomotic nails and a nail pushing seat, and the structure of the anastomotic nail box is the same as that of the existing linear anastomotic nail box; the cutter body 4 is a handle with a trigger, and the structure of the cutter body is the same as that of the handle of the conventional linear anastomat.

More preferably, the side of the first purse string forceps 103 opposite the second purse string forceps 104 is still at least equidistant from the thickness of the intestinal wall after closing, and the side of the first anastomosis forceps 101 opposite the second anastomosis forceps 102 is still at least equidistant from the thickness of the intestinal wall after closing.

The above description of embodiments is only for the understanding of the present utility model. It should be noted that it will be apparent to those skilled in the art that modifications can be made to the present utility model without departing from the principles of the utility model, and such modifications will fall within the scope of the claims.

Claims (10)

1. A purse-string anastomosis stitching instrument comprises a cutter body, a cutter clamp and a tubular shell; the surgical incision forceps are characterized by comprising an anastomosis part, a purse part and a cutting part, wherein one end of the incision forceps, which is close to an execution position in an operation, is the front end; the opposite end is the rear end; the cutter body is arranged at the rear end of the tubular shell; the cutting part is arranged between the purse part and the anastomosis part; the anastomotic part comprises an anastomotic clamp structure, an anastomotic nail box and a first push rod, the anastomotic clamp structure comprises a first anastomotic clamp and a second anastomotic clamp, the anastomotic nail box comprises a box body, anastomotic nails and a nail pushing seat, the box body is provided with a first nail outlet, a first sliding rail and a first nail groove, the first anastomotic clamp is arranged at the upper end of the second anastomotic clamp, a nail pressing groove corresponding to the position of the anastomotic nails inside the nail box is arranged at one side of the second anastomotic clamp, the nail pushing seat is provided with an inclined plane, one end of the nail pushing seat is connected with the sliding rail, the other end of the nail pushing seat is connected with the first push rod, and when the first push rod moves towards one side close to the cutting clamp, the nail pushing seat is pushed to move on the sliding rail and the anastomotic nails are extruded out of the nail groove by the inclined plane.

2. The pouch-and-staple stapler according to claim 1, wherein the pouch portion comprises a pouch clamp structure, a second push rod and a stapling assembly, the pouch clamp structure comprises a first pouch clamp and a second pouch clamp, the second pouch clamp is arranged at the lower end of the first pouch clamp, the stapling assembly comprises a positioning nail, a suture line and a pouch nail box, the pouch nail box is arranged on two opposite side surfaces of the first pouch clamp and the second pouch clamp, a second slide rail, a second nail outlet and a second nail groove are arranged in the pouch nail box, the positioning nail is arranged in the second nail groove, the suture line comprises a wire harness and a connecting head, the wire harness is arranged on one side, close to the second nail outlet, of the positioning nail, of the second push rod is detachably connected with one side, far away from the cutting connector, of the first push rod through the connecting head.

3. The pouch-and-anastomosis stapler according to claim 2, wherein the pouch magazine is provided with a clamping hole at a position near the front end, the wire harness passes through the clamping hole, the connecting head is connected with the clamping hole in a clamping manner, and when the first pouch clamp and the second pouch clamp are closed, the connecting heads on two sides can be connected in a plugging manner.

4. The purse-string anastomosis stapler according to claim 3, wherein a sealing structure is arranged in the clamping hole, the sealing structure comprises a sealing groove and a sealing plate, the sealing groove is slidably connected with the sealing plate, and the sealing plate is used for providing limit for the connector and preventing the connector from being connected by mistake.

5. The pouch-anastomosis stapler of claim 4, wherein the closing plate is provided with a wire passing hole through which the wire harness passes, and the size of the wire passing hole is not larger than the area of any section of the connector.

6. The pouch-anastomosis stapler of claim 5, wherein the closing slot is formed from a location of the snap-fit aperture in a direction toward the tubular housing and out of the surface of the pouch magazine for providing a linkage of the closing plate.

7. The purse-string anastomotic stapler according to any one of claims 4 to 6, wherein the closing plate extends through the cutter body and the portion extending through the cutter body is provided with a pull ring.

8. The purse-string anastomosis stapler of claim 7, wherein a spring is disposed between the closure plate and the closure slot, the spring urges the closure plate to seal the clamping aperture, and when the pull ring is pulled, the closure plate moves and exposes the clamping aperture, at which time the connector loses its position.

9. The purse-string anastomosis stapler of claim 5, wherein the connecting head includes at least one boss provided with symmetrical snap-fit engagement for easy snap-fit connection when the connecting heads on both sides are mated.

10. The purse string anastomosis stapler of claim 2, wherein the forward most end of the first purse string forceps and the forward most end of the second purse string forceps are provided with second sloping surfaces on opposite sides, which facilitates the grasping of the intestinal tract by the purse string forceps under different degrees of opening and closing.