CN217987663U - Cutting knife for endoscope cutting anastomat - Google Patents

Abstract

The utility model relates to a cavity mirror cutting knife for anastomat, including the anastomat main part, be equipped with the promotion connecting rod in the anastomat main part, be equipped with the push away tool board in the promotion connecting rod, push away tool board one end is equipped with the tool bit, and the other end is equipped with the connector, tool bit and push away tool board fixed connection, the connector can be dismantled with the push away tool board and be connected, the sword groove has been seted up on the tool bit, the sword inslot is equipped with the blade, both ends all are equipped with the arc head about the tool bit, the wavy surface has been seted up to the internal surface of arc head, sets up at the connector part through the change structure with the cutting knife, and the restriction of promotion connecting rod through the anastomat main part removes, makes the installation more firm, through the shape of contact surface that changes tool bit both ends and external world, makes the removal of tool bit more smooth, does benefit to the stable the going on of cutting.

Description

Cutting knife for endoscope cutting anastomat

Technical Field

The utility model relates to a minimal access surgery cutting knife technical field, concretely relates to endoscope cutting knife for anastomat.

Background

The minimally invasive endoscopic anastomat is a medical instrument frequently used in surgical operations on physiological tissues such as intestinal tracts and the like, is a device used in medicine to replace traditional manual suturing, and is suitable for excision, transection and anastomosis of tissues in endoscopic operations of abdominal surgery, gynecology, pediatrics and thoracic surgery.

Chinese patent document No. CN202120487198.6 discloses an electric cutting blade for disposable endoscope linear cutting anastomat, which is characterized in that a mounting structure for replacing a tool bit is arranged outside, and the mounting structure is inevitably loosened and even falls off when the electric cutting blade is used for a long time, so as to cause an accident risk, and the upper end and the lower end of a cutting knife are contacted with a nail resisting device when moving, so that the cutting becomes unstable after friction is generated, the operation effect is affected, when cutting, tissue to be cut can be extruded into a thin state, the contact surface of the straight blade and the tissue to be cut is limited, waste is caused, and a push plate is always left out due to the middle part of the structural design, and the internal deformation is possible during the operation, so that the cutting knife is unstable, and the stable operation of the blade is affected.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a cavity mirror cutting knife for anastomat.

(II) technical scheme

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a cavity mirror cutting knife for anastomat, includes the anastomat main part, be equipped with the promotion connecting rod in the anastomat main part, be equipped with the push away cutting board in the promotion connecting rod, push away cutting board one end and be equipped with the tool bit, the other end is equipped with the connector, tool bit and push away cutting board fixed connection, the connector can be dismantled with the push away cutting board and be connected, the sword groove has been seted up on the tool bit, the sword inslot is equipped with the blade, both ends all are equipped with the arc head about the tool bit, the wave face has been seted up to the internal surface of arc head.

Preferably, the push broach board is equipped with the connecting block with the link of connector, set up the spread groove that corresponds with the connecting block on the connector, conveniently pull down tool bit and push broach board, conveniently change or accomodate the tool bit.

In further preferred, promote connecting rod one end and be equipped with fixed lid, fixed covering sets up the promotion mouth that corresponds with the broach board, fixed covering is equipped with the go-between, it can dismantle with fixed lid through the go-between and is connected to promote the connecting rod, with the fixed broach board of connector cooperation, guarantees the cutting direction of work tool bit.

Preferably in further, promote the connecting rod end and be equipped with the screw ring, go up inside the thread groove that corresponds with the screw ring that is equipped with in go-between one side, the opposite side is equipped with the rotation strip, fixed covering set up with rotation strip complex rotation groove, make things convenient for the fixed lid of dismouting, conveniently change push away cutting board and tool bit.

Preferably, the arc head is provided with an injection molding port, the two ends of the arc head are provided with a plurality of plastic outlets, and the injection molding ports are communicated with the plastic outlets to lubricate the arc head and reduce resistance to the arc head in the movement process.

In a further preferred mode, the blade is provided with an arc-shaped cutting groove, so that the cutting is smoother.

In a further preferred mode, a plurality of supporting columns are arranged in the push broach plate and support the structure of the push broach plate, so that the cutter head is more stable during cutting.

(III) advantageous effects

Compared with the prior art, the utility model provides a cavity mirror cutting knife for anastomat possesses following beneficial effect:

1. the utility model discloses a set up connecting block and spread groove, be in the same place the tool bit is fixed with the push-type broach board, the structure setting that will dismantle the tool bit is being connected out with the connector, make the tool bit can change, set up fixed lid simultaneously and cover the connector, provide more complicated connected mode than the plug structure through setting up go-between and screw ring, connect more tightly, be difficult for droing, it is fixed with the push-type broach board to expose tool bit externally, can't drop, guarantee the stability of operation in-process tool bit, avoid the not hard up accident that causes of tool bit.

2. The utility model discloses a set up arc head and wavy surface and support the contact of nail equipment to this reduces and supports the coefficient of friction of nail seat, improves the stability and the security of cutting knife, moulds plastics the mouth and goes out the upper and lower both ends that the mouth made the tool bit through setting up simultaneously and keep smooth, further reduces the resistance that receives in the cutting knife motion process, makes equipment cooperate the operator to use better.

3. The utility model discloses a set up the arc and cut the groove and make the cutting knife during operation sharper, more efficient, set up the stable in structure that the support column guaranteed to push away the cutting board simultaneously, make the removal of tool bit more stable, guarantee that the cutting knife during operation is stable, improve the security, it is more efficient.

Drawings

Fig. 1 is a schematic front structure view of a cutting knife for an endoscopic cutting stapler according to the present invention;

FIG. 2 is a schematic view of the structure of the push connecting rod, the push plate and the tool bit of the present invention;

FIG. 3 is a schematic view of the connection structure of the middle push plate, the tool bit and the connector of the present invention;

FIG. 4 is a schematic view of a tool bit structure according to the present invention;

fig. 5 is the internal section view of the fit structure of the middle pushing connecting rod and the fixing cover of the present invention.

In the figure: 1. a stapler body; 2. pushing the connecting rod; 3. a knife pushing plate; 4. a cutter head; 5. a connector; 6. a knife slot; 7. a blade; 8. an arc head; 9. a wavy surface; 10. connecting blocks; 11. connecting grooves; 12. a fixed cover; 13. pushing the port; 14. a connecting ring; 15. a threaded ring; 16. a thread groove; 17. rotating the strip; 18. a rotating groove; 19. injection molding a port; 20. a plastic outlet; 21. arc-shaped cutting grooves; 22. and (7) supporting the column.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-4, a cutting knife for an endoscope cutting stapler comprises a stapler main body 1, a push connecting rod 2 is arranged on the stapler main body 1, a push knife plate 3 is arranged in the push connecting rod 2, a knife head 4 is arranged at one end of the push knife plate 3, a connector 5 is arranged at the other end of the push knife plate 3, the knife head 4 is fixedly connected with the push knife plate 3, the connector 5 is detachably connected with the push knife plate 3, a knife groove 6 is formed in the knife head 4, a blade 7 is arranged in the knife groove 6, arc heads 8 are arranged at the upper end and the lower end of the knife head 4, and a wave surface 9 is formed on the inner surface of the arc head 8.

Referring to fig. 3, in the present embodiment, a connecting block 10 is disposed at a connecting end of the pushing plate 3 and the connecting head 5, a connecting groove 11 corresponding to the connecting block 10 is formed on the connecting head 5, the connecting block 10 is aligned and inserted into the connecting groove 11, and the pushing plate 3 and the connecting head 5 are connected together.

Referring to fig. 2 and 5, in the present embodiment, a fixed cover 12 is disposed at one end of the pushing connecting rod 2, a pushing opening 13 corresponding to the push-type broach plate 3 is formed in the fixed cover 12, a connecting ring 14 is disposed on the fixed cover 12, the pushing connecting rod 2 is detachably connected to the fixed cover 12 through the connecting ring 14, a threaded ring 15 is disposed at an end of the pushing connecting rod 2, a threaded groove 16 corresponding to the threaded ring 15 is disposed inside one side of the connecting ring 14, a rotating bar 17 is disposed on the other side of the connecting ring 14, a rotating groove 18 matched with the rotating bar 17 is formed in the fixed cover 12, when the fixed cover 12 is mounted on the pushing connecting rod 2, the connecting ring 14 is in contact with the threaded ring 15, the connecting ring 14 is rotated to rotate along the fixed cover 12 under the matching of the rotating bar 17 and the rotating groove 18, the threaded groove 16 is matched with the threaded ring 15, and the fixed cover 12 is mounted on the pushing connecting rod 2.

Referring to fig. 4, in the present embodiment, an injection opening 19 is formed on the arc head 8, a plurality of plastic outlets 20 are formed at two ends of the arc head 8, the injection opening 19 is communicated with the plastic outlets 20, and a lubricant is added into the injection opening 19, so that the lubricant slowly flows to the side surface of the arc head 8 through the plastic outlets 20, thereby improving the smoothness of the arc head 8.

Referring to fig. 3-4, in the present embodiment, an arc-shaped cutting groove 21 is formed on the blade 7, and a plurality of supporting pillars 22 are disposed in the push broach plate 3, so that during cutting, the blade 7 performs cutting through the arc-shaped cutting groove 21, so that a contact surface of the cutting is larger, and the contact surface conforms to a shape of an intracavity tissue, so that the cutting is more stable, and meanwhile, the supporting pillars 22 support the push broach plate 3, so that the push broach plate 3 has a stable structure, and the blade 7 is ensured to perform stable cutting.

Example 2:

referring to fig. 2, 3 and 5, before the device is used, when a cutting knife needs to be replaced or installed, the connecting ring 14 is rotated, the fixed cover 12 is taken down, the connector 5 is installed in the push connecting rod 2, the connector 5 is connected with the control component of the stapler main body 1, the connection structure of the control component of the cutting knife and the connector 5 is a general structure, and again, no further description is given, the push knife plate 3 passes through the push port 13, the fixed cover 12 slides on the push knife plate 3, the connecting ring 14 is aligned with the push knife plate 3 and inserted into the connecting groove 11, the push knife plate 3 is connected with the connector 5, the fixed cover 12 is moved, the fixed cover 12 slides along the push knife plate 3 through the push port 13, the connecting ring 14 is contacted with the threaded ring 15, the connecting ring 14 is rotated along the fixed cover 12 under the matching of the rotating strip 17 and the rotating groove 18, the threaded groove 16 is matched with the threaded ring 15, the connecting ring 14 is connected with the threaded ring 15, the connecting ring 14 is installed on the push connecting rod 2, finally, the smoothness liquid is added into the injection molding opening 19, the lubricating liquid slowly flows out of the arc-shaped head 8 through the arc-shaped opening 20, and the lubricating head is increased.

Example 3:

referring to fig. 1-4, when the device works, the connector 5 is controlled by the stapler body 1, so that the connector 5 pushes the push plate 3 to slide in the push connecting rod 2, at this time, the push connecting rod 2 limits the push plate 3 and the connector 5, separation of the connecting block 10 from the connecting groove 11 is prevented, the push plate 3 moves along the push port 13 to control the tool bit 4 to move, the tool bit 4 contacts with the nail propping device through the arc head 8 and the wavy surface 9, contact area is reduced, lubrication is performed through slow outflow of lubricating liquid from the plastic outlet 20, friction between two ends of the tool bit 4 and the nail propping device is further reduced, so that the tool bit 4 moves more stably, the tool bit 4 cuts through the blade 7, during cutting, the blade 7 cuts through the arc cutting groove 21, so that the contact surface for cutting is larger, and conforms to the shape of the pressed tissue in the cavity, so that the cutting is more stable, and meanwhile, the support pillar 22 supports the push plate 3, so that the structure of the push plate 3 is stable, and stable cutting of the blade 7 is ensured.

In all the above-mentioned embodiments, the connection between two components may be selected from welding, bolt and nut fit connection, bolt or screw connection or other known connection methods according to actual situations, which are not repeated herein, and it is preferable to consider welding in the above description, although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. The utility model provides a cutter knife for endoscope cutting anastomat, includes anastomat main part (1), be equipped with on anastomat main part (1) and promote connecting rod (2), its characterized in that: be equipped with in promotion connecting rod (2) and push away cutting board (3), push away cutting board (3) one end and be equipped with tool bit (4), the other end is equipped with connector (5), tool bit (4) and push away cutting board (3) fixed connection, connector (5) can be dismantled with push away cutting board (3) and be connected, sword groove (6) have been seted up on tool bit (4), be equipped with blade (7) in sword groove (6), both ends all are equipped with arc head (8) about tool bit (4), wave face (9) have been seted up to the internal surface of arc head (8).

2. The cutting knife for the endoscopic cutting stapler according to claim 1, characterized in that: the connecting end of the cutter pushing plate (3) and the connecting end of the connecting head (5) are provided with connecting blocks (10), and connecting grooves (11) corresponding to the connecting blocks (10) are formed in the connecting head (5).

3. The cutting knife for the endoscopic cutting stapler according to claim 1, characterized in that: promote connecting rod (2) one end and be equipped with fixed lid (12), set up promotion mouth (13) that correspond with broach board (3) on fixed lid (12), be equipped with go-between (14) on fixed lid (12), it is connected with fixed lid (12) can be dismantled through go-between (14) to promote connecting rod (2).

4. The cutting knife for the endoscopic cutting stapler according to claim 3, characterized in that: the end of the pushing connecting rod (2) is provided with a threaded ring (15), a threaded groove (16) corresponding to the threaded ring (15) is formed in one side of the connecting ring (14), a rotating strip (17) is arranged on the other side of the connecting ring, and a rotating groove (18) matched with the rotating strip (17) is formed in the fixed cover (12).

5. The cutting knife for the endoscopic cutting stapler according to claim 1, wherein: the injection molding device is characterized in that an injection molding opening (19) is formed in the arc head (8), a plurality of injection molding openings (20) are formed in two ends of the arc head (8), and the injection molding openings (19) are communicated with the injection molding openings (20).

6. The cutting knife for the endoscopic cutting stapler according to claim 1, wherein: an arc-shaped cutting groove (21) is formed in the blade (7).

7. The cutting knife for the endoscopic cutting stapler according to claim 6, wherein: a plurality of supporting columns (22) are arranged in the cutter pushing plate (3).

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