CN110215250B

CN110215250B - Tubular anastomat

Info

Publication number: CN110215250B
Application number: CN201910608588.1A
Authority: CN
Inventors: 刘畅; 谭宇棋; 白海光
Original assignee: Beihua University
Current assignee: Beihua University
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2022-04-15
Anticipated expiration: 2039-07-08
Also published as: CN110215250A

Abstract

The invention discloses a tubular anastomat, relating to the technical field of anastomats and comprising a nail bin assembly, the nail bin assembly for the tubular anastomat is characterized in that the movable contact is in a long strip shape, the distance between the fixed contact and the midpoint of the rotating rod is smaller than the size of the movable contact, the length of the movable contact is smaller than the distance between the rotating rod and the nail position, therefore, if the nail position is completely sewed, the movable contact can be contacted with the sewing nail, and the sewing nail can block the position of the movable contact after the movable contact is contacted, so that the movable contact cannot rotate continuously, namely, the indicator light can not contact with the fixed contact, at the moment, the circuit of the indicator light externally connected with the fixed contact is in a disconnected state, the suturing completion and accurate stapling level are shown, the condition that the anastomat is directly taken out due to the fact that an operator cannot directly observe a suturing result is avoided, harm to a patient is reduced, and safety and reliability of an operation process are improved.

Description

Tubular anastomat

Technical Field

The invention relates to the technical field of anastomats, in particular to a tubular anastomat.

Background

The anastomat has a long use history as one of modern medical appliances, can effectively perform excision and suture on tissues or blood vessels to be excised in an operation, and can be operated more conveniently and at lower cost by utilizing a principle similar to that of a stapler.

The tubular anastomat is one of anastomats, is commonly used in anorectal departments or similar departments, has the same principle as most anastomats, utilizes the principle of a stapler, can cut off tissues and sew up the incision at the same time, and is mainly completed by a nail bin assembly. Because during excision and suture operation, nail storehouse subassembly is generally located internal or tissue, the condition of sewing can't directly be observed from the external world to the operator, and because the problem of operation or anastomat itself, probably lead to suture nail and the insufficient problem of tissue suture in suture department, the tissue of excision this moment still is in mutual adhesion state promptly, if directly take out the anastomat this moment can cause tissue mucosa to pull or the suture department is torn, has caused secondary damage to the operator on the one hand, can cause infection scheduling problem even, on the other hand can cause certain influence to the operation process.

In order to solve the above problems, the inventor proposes a tubular anastomat, which has the advantage of detecting and prompting the suturing state, so as to avoid the situation that the anastomat is directly taken out due to the fact that an operator cannot directly observe the suturing result, reduce the injury to the patient, and improve the safety and reliability of the operation process.

Disclosure of Invention

In order to achieve the purpose of detecting and prompting the suture state, the invention provides the following technical scheme: a tubular anastomat comprises a shell, a fixed handle, a firing handle, an adjusting knob, a safety button, a tube body, a locking mechanism, a nail bin shell, a nail bin assembly, a pull wire, a rotating rod, a movable contact, a fixed contact, a limiting groove and a self-locking mechanism.

Wherein: the nail bin assembly comprises a clamping pipe, a positioning pipe, a clamping block, a push rod, a nail abutting seat assembly, a conical head, a nail seat, a nail hole, a positioning hole and an shaping hole.

Wherein: the self-locking mechanism comprises a main sliding block, an auxiliary sliding block and a movable rod.

The positions and the connection relations of the structures are as follows:

the outside fixedly connected with fixed handle of casing, fixed handle's outside swing joint has the percussion handle, the right side swing joint of casing has adjust knob, the surface of casing is provided with the safety button, the left side swing joint of casing has the body, the surface mosaic of body has the locking button, the one end swing joint that the casing was kept away from to the body has the magazine shell, the inside swing joint of magazine shell has the nail storehouse assembly.

The nail bin assembly comprises a clamping pipe, the top of the clamping pipe is movably connected with a positioning pipe, the top of the positioning pipe is movably connected with a clamping block, the inner portion of the positioning pipe is movably connected with a push rod, the top of the push rod is movably connected with a nail abutting seat assembly, and the top of the nail abutting seat assembly is movably connected with a conical head.

The inside swing joint of fixture block has the nail seat, the nail hole has been seted up on the surface of nail seat.

The inside of propping the nail seat assembly is provided with the locating hole, the fixed surface that props the nail seat assembly is connected with the shaping hole.

The outer side of the push rod is movably connected with a pull wire, one end of the pull wire, far away from the push rod, is movably connected with a rotating rod, the surface of the rotating rod is movably connected with a movable contact, the outer side of the rotating rod is movably connected with a fixed contact, the outer side of the push rod is provided with a limiting groove, and the inner part of the limiting groove is movably connected with a self-locking mechanism.

The self-locking mechanism comprises a main sliding block, an auxiliary sliding block is movably connected inside the main sliding block, and a movable rod is movably connected to the front side of the auxiliary sliding block.

Preferably, the top of the positioning tube is provided with a saw-toothed convex block structure, the bottom of the clamping block is provided with a saw-toothed concave block structure, and the convex block structure is matched with the concave block structure.

Preferably, the inner wall of the clamping block is provided with a positioning groove structure, the outer side of the nail seat is provided with a positioning block structure, and the positioning block structure is matched with the positioning groove structure.

Preferably, the nail holes have nine groups, the distance and the angle between two adjacent groups of nail holes are the same, the shaping holes have nine groups, and the nine groups of shaping holes correspond to the nine groups of nail holes respectively.

Preferably, the axes of the positioning tube, the clamping block, the push rod, the nail abutting seat assembly and the conical head are the same straight line, the circle center of the positioning hole is located on the central axis of the nail abutting seat assembly, and the size of the positioning hole is matched with that of the push rod.

Preferably, the nine self-locking mechanisms in the initial state have the same height in the horizontal direction and are all positioned at the bottom of the limiting groove.

Preferably, the shape of the nail abutting seat assembly is similar to an isosceles trapezoid structure, and the angle of two waists of the isosceles trapezoid cross section is the same as that of the cross section of the conical head.

Preferably, the size of the bottom of the nail abutting seat assembly is the same as that of the top of the clamping block, and the nail abutting seat assembly and the clamping block are matched with each other.

Compared with the prior art and products, the invention has the beneficial effects that:

1. this a nail storehouse subassembly for cast anastomat, through the inner wall of fixture block is provided with the constant head tank structure, the outside of nail seat is provided with the locating block structure, this locating block structure and this constant head tank structure looks adaptation, because the axis of positioning tube, fixture block, push rod, nail seat assembly and conical head are same straight line, the centre of a circle of locating hole is located the axis that supports nail seat assembly and the size adaptation of size and push rod, pegs graft the inside at the locating hole with the top of push rod, can accomplish the concatenation installation of the device this moment, and above-mentioned process can make the device install more convenient when using, has reduced the time of preliminary preparation in earlier stage, has improved the efficiency and the quality of operation.

2. The nail bin assembly for the tubular anastomat is characterized in that the movable contact is in a long strip shape, the distance between the fixed contact and the midpoint of the rotating rod is smaller than the size of the movable contact, the length of the movable contact is smaller than the distance between the rotating rod and the nail position, therefore, if the nine nail positions are completely sewed, the movable contact can be contacted with the sewing nail, and the sewing nail can block the position of the movable contact after the movable contact is contacted, so that the movable contact cannot rotate continuously, namely, the indicator light can not contact with the fixed contact, at the moment, the circuit of the indicator light externally connected with the fixed contact is in a disconnected state, the suturing completion and accurate nail position can be shown at the moment, the device can be used for detecting and prompting the suturing state in the process, the condition that the anastomat is directly taken out due to the fact that an operator cannot directly observe the suturing result is avoided, harm to a patient is reduced, and safety and reliability of the operation process are improved.

Drawings

FIG. 1 is a front view of the structural attachment of the present invention;

FIG. 2 is a schematic diagram of the movement trace of the structure of the present invention;

FIG. 3 is a schematic view of the connection between the staple cartridge assembly and the internal structure of the present invention;

FIG. 4 is a schematic view of the cartridge housing of the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 3A according to the present invention;

FIG. 6 is a top view of the connection structure of the nail seat and the nail hole of the present invention;

FIG. 7 is a top view of a positioning tube structure according to the present invention;

FIG. 8 is a top view of the fixture block structure of the present invention;

FIG. 9 is a top view of the connecting structure of the positioning tube and the clamping block of the present invention;

FIG. 10 is a bottom view of the connection structure of the nail seat assembly, the positioning hole and the shaping hole of the present invention;

FIG. 11 is a top view of the connecting structure of the push rod, the nail seat assembly, the pull wire and the rotating rod of the present invention;

FIG. 12 is a schematic view of the connection structure of the rotating rod, the movable contact and the fixed contact according to the present invention;

FIG. 13 is a schematic diagram showing the movement traces of the rotary rod, the movable contact and the fixed contact according to the present invention;

FIG. 14 is a cross-sectional top view of the push rod and the limiting groove structure of the present invention;

FIG. 15 is an enlarged view of the structure of FIG. 14 at B in accordance with the present invention;

FIG. 16 is a schematic view of a connection structure of a limit groove, a self-locking mechanism and a push rod according to the present invention;

FIG. 17 is a schematic view of the motion trajectory of the limit groove, the self-locking mechanism and the push rod according to the present invention;

FIG. 18 is a schematic view of the connection structure of the self-locking mechanism of the present invention;

fig. 19 is a schematic diagram of the motion track of the self-locking mechanism of the present invention.

In the figure: 1-shell, 2-fixed handle, 3-percussion handle, 4-adjusting knob, 5-safety button, 6-tube, 7-locking mechanism, 8-nail bin shell, 9-nail bin assembly, 10-pull wire, 11-rotating rod, 12-movable contact, 13-fixed contact, 14-limiting groove, 15-self-locking mechanism, 91-clamping tube, 92-positioning tube, 93-clamping block, 94-push rod, 95-nail abutting seat assembly, 96-conical head, 931-nail seat, 932-nail hole, 951-positioning hole, 952-shaping hole, 151-main slide block, 152-auxiliary slide block, 153-movable rod

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Please refer to fig. 1-19:

the nail bin component for the tubular anastomat comprises a shell 1, a fixed handle 2, a firing handle 3, an adjusting knob 4, a safety button 5, a tube body 6, a locking mechanism 7, a nail bin shell 8, a nail bin assembly 9, a pull wire 10, a rotating rod 11, a movable contact 12, a fixed contact 13, a limiting groove 14 and a self-locking mechanism 15.

Wherein: the nail cartridge assembly 9 comprises a clamping tube 91, a positioning tube 92, a clamping block 93, a push rod 94, a nail abutting seat assembly 95, a conical head 96, a nail seat 931, a nail hole 932, a positioning hole 951 and a shaping hole 952.

Wherein: the self-locking mechanism 15 includes a main slider 151, a sub slider 152, and a movable rod 153.

The initial positions and the connection relations of the structures are as follows:

the outside fixedly connected with fixed handle 2 of casing 1, the outside swing joint of fixed handle 2 has percussion handle 3, the right side swing joint of casing 1 has adjust knob 4, the surface of casing 1 is provided with safety button 5, the left side swing joint of casing 1 has body 6, the surface mosaic of body 6 has locking button 7, the one end swing joint that casing 1 was kept away from to body 6 has magazine shell 8, the inside swing joint of magazine shell 8 has nail storehouse assembly 9.

The nail bin assembly 9 comprises a clamping tube 91, the top of the clamping tube 91 is movably connected with a positioning tube 92, the top of the positioning tube 92 is movably connected with a clamping block 93, the inside of the positioning tube 92 is movably connected with a push rod 94, the top of the push rod 94 is movably connected with a nail abutting seat assembly 95, and the top of the nail abutting seat assembly 95 is movably connected with a conical head 96;

the inside of the latch 93 is movably connected with a nail seat 931, and a nail hole 932 is formed on the surface of the nail seat 931.

The inside of propping nail seat assembly 95 is provided with locating hole 951, and the fixed surface that props nail seat assembly 95 is connected with shaping hole 952.

The outside swing joint of push rod 94 has the stay wire 10, and the one end swing joint that push rod 94 was kept away from to stay wire 10 has bull stick 11, and the surperficial swing joint of bull stick 11 has movable contact 12, and the outside swing joint of bull stick 11 has fixed contact 13, and spacing groove 14 has been seted up in the outside of push rod 94, and the inside swing joint of spacing groove 14 has self-locking mechanism 15.

The self-locking mechanism 15 comprises a main sliding block 151, an auxiliary sliding block 152 is movably connected inside the main sliding block 151, and a movable rod 153 is movably connected to the front surface of the auxiliary sliding block 152.

Wherein:

a. the inside of body 6 is provided with the connecting rod, and adjust knob 4 is connected with the right-hand member swing joint of this connecting rod, and the left end of this connecting rod and push rod 94 swing joint, and the shape of propping nail seat assembly 95 is similar to isosceles trapezoid structure, and the angle of two waists of equal waist trapezoidal cross-section is the same with the angle of conical head 96 cross-section, and the size of propping nail seat assembly 95 bottom is the same with the size and the mutual adaptation of fixture block 93 top.

b. The outside of magazine shell 8 is provided with the scale, and the distance between two adjacent scalar numbers is the same, and the shape of magazine shell 8 is cylindrical and the axis is same straight line with the axis of body 6, and nine self-locking mechanism 15 are the same in the ascending height of horizontal under the initial condition, all are located the bottom of spacing groove 14.

c. The movable contact 12 is long, the distance between the fixed contact 13 and the midpoint of the rotating rod 11 is smaller than the size of the movable contact 12, the axes of the positioning tube 92, the fixture block 93, the push rod 94, the nail abutting seat assembly 95 and the conical head 96 are the same straight line, the center of the positioning hole 951 is located on the central axis of the nail abutting seat assembly 95, and the size of the positioning hole 951 is matched with the size of the push rod 94.

Wherein:

d. the bull stick 11 all has nine with the acting as go-between 10, nine bull sticks 11 are evenly distributed with the centre of a circle of propping nail seat assembly 95 as the reference, distance and angle between two adjacent bull sticks 11 are all the same promptly, nine bull sticks 11 correspond with nine acting as go-between 10 respectively, nine one end of acting as go-between 10 keeping away from bull stick 11 respectively with nine vice sliders 152 swing joint, nail hole 932 is total nine groups, distance and angle between two adjacent groups of nail holes 932 are all the same, shaping hole 952 is total nine groups, nine groups of shaping hole 952 correspond with nine groups of nail holes 932 respectively.

e. The quantity of spacing groove 14 is nine, and distance and angle between two adjacent spacing grooves 14 are the same, and self-locking mechanism 15 is total nine, and nine self-locking mechanism 15 are located nine inside of spacing groove 14 respectively and rather than sliding connection, and the inner wall of fixture block 93 is provided with the constant head tank structure, and the outside of nail seat 931 is provided with the locating block structure, this locating block structure and this constant head tank structure looks adaptation.

f. The inside of spacing groove 14 is provided with the tooth, movable rod 153 is total two, be located the front of vice slider 152 for articulated state and pin joint between two movable rods 153, swing joint has reset spring between two movable rods 153, the one end that vice slider 152 was kept away from to two movable rods 153 is provided with dentate structure, this dentate structure and the inside tooth looks adaptation of spacing groove 14, the top of registration arm 92 is provided with cockscomb structure, the bottom of fixture block 93 is provided with cockscomb structure concave block structure, looks adaptation between this convex block structure and the concave block structure.

When the device is used, the positioning groove structure is arranged on the inner wall of the fixture block 93, the positioning block structure is arranged on the outer side of the nail seat 931 and is matched with the positioning groove structure, the positioning tube 92, the fixture block 93, the push rod 94, the axes of the nail seat assembly 95 and the conical head 96 are the same straight line, the circle center of the positioning hole 951 is located on the central axis of the nail seat assembly 95 and is matched with the size of the push rod 94 in size, the top of the push rod 94 is inserted into the positioning hole 951, and the splicing installation of the device can be completed at the moment.

The above structure and process are shown in FIGS. 1-10.

Assuming that there are nine staple positions for suturing, after the tissue is cut and sutured, there are nine groups of staple holes 932, the distances and angles between two adjacent groups of staple holes 932 are the same, there are nine groups of shaping holes 952, and the nine groups of shaping holes 952 correspond to the nine groups of staple holes 932, so that the sutured state is as shown in fig. 11, that is, the nine staple positions are uniformly distributed.

The movable contact 12 is long, the distance between the fixed contact 13 and the midpoint of the rotating rod 11 is smaller than the size of the movable contact 12, and the length of the movable contact 12 is smaller than the distance between the rotating rod 11 and the nail position.

Please refer to fig. 11 for the above structure and process.

In the initial state, the fixture block 93 and the nail abutting seat assembly 95 are separated from each other, and when the tissue needs to be cut, the two are in a mutual contact state, at this time, the suturing nail inside the nail seat 931 extends out of the nail hole 932, passes through the tissue to be sutured and then contacts with the shaping hole 952, at this time, the suturing nail starts to bend under the pressure of the nail seat 931 and finally forms a 'B' shape.

After the sewing is completed, the fixture block 93 and the nail seat 931 are rotated and moved downwards, because nine rotating rods 11 and pull wires 10 are provided, nine rotating rods 11 are uniformly distributed by taking the circle center of the nail abutting seat assembly 95 as a reference, that is, the distance and the angle between two adjacent rotating rods 11 are the same, nine rotating rods 11 respectively correspond to nine pull wires 10, one ends of the nine pull wires 10 far away from the rotating rods 11 are respectively movably connected with nine auxiliary sliders 152, the heights of the nine self-locking mechanisms 15 in the horizontal direction in the initial state are the same and are all located at the bottom of the limiting groove 14, the rotating rods 11 and the movable contacts 12 can rotate under the action of the pull wires 10, the movable contacts 12 are the same, the distance between the fixed contacts 13 and the middle points of the rotating rods 11 is smaller than the size of the movable contacts 12, and the length of the movable contacts 12 is smaller than the distance between the rotating rods 11 and the nail positions, so that nine long strip nail positions are completely and fully sewn, the movable contact 12 will contact with the suturing nail, and the suturing nail will block its position after contacting with the movable contact 12, so that it cannot rotate continuously, i.e. cannot contact with the fixed contact 13, and at this time, the circuit of the indicator light externally connected with the fixed contact 13 is in the off state, i.e. the suturing is completed and the nail level is correct.

The above structure and process are shown in FIGS. 11-13.

Because the inside of spacing groove 14 is provided with the tooth, movable rod 153 is total two, for articulated state and pin joint position in the front of vice slider 152 between two movable rods 153, swing joint has reset spring between two movable rods 153, the one end that two movable rods 153 kept away from vice slider 152 is provided with dentate structure, this dentate structure and the inside tooth looks adaptation of spacing groove 14, under the initial condition, two movable rods 153 are great in angle degree under reset spring's effect, the dentate structure of movable rod 153 and the inside tooth meshing of spacing groove 14, main slider 151 and vice slider 152 are fixed relatively in the inside position of spacing groove 14 this moment, can drive spacing groove 14 and its inside main slider 151 and vice slider 152 synchronous motion when push rod 94 moves.

Since the rotating rod 11 is movably connected with the sub-slider 152 through the pull wire 10, when the movable contact 12 rotates to contact with the staples, since the staples limit the position of the movable contact 12, the pull wire 10 starts to apply an upward pulling force to the sub-slider 152 at this time, the angle between the two movable rods 153 is reduced at this time, and the main slider 151 can move inside the limit groove 14, that is, the movement of other structures is not affected at this time.

The above structure and process are shown in FIGS. 14-19.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A tubular stapler, characterized in that: the nail bin comprises a nail bin assembly, the nail bin assembly comprises a shell (1), a fixed handle (2) is fixedly connected to the outer side of the shell (1), a firing handle (3) is movably connected to the outer side of the fixed handle (2), an adjusting knob (4) is movably connected to the right side of the shell (1), a safety button (5) is arranged on the surface of the shell (1), a pipe body (6) is movably connected to the left side of the shell (1), a locking button (7) is embedded in the surface of the pipe body (6), a nail bin shell (8) is movably connected to one end, far away from the shell (1), of the pipe body (6), and a nail bin assembly (9) is movably connected to the inner portion of the nail bin shell (8);

the nail bin assembly (9) comprises a clamping tube (91), the top of the clamping tube (91) is movably connected with a positioning tube (92), the top of the positioning tube (92) is movably connected with a clamping block (93), the inside of the positioning tube (92) is movably connected with a push rod (94), the top of the push rod (94) is movably connected with a nail abutting seat assembly (95), and the top of the nail abutting seat assembly (95) is movably connected with a conical head (96);

a nail seat (931) is movably connected inside the fixture block (93), and a nail hole (932) is formed in the surface of the nail seat (931);

a positioning hole (951) is formed in the nail abutting seat assembly (95), and an adjusting hole (952) is fixedly connected to the surface of the nail abutting seat assembly (95);

the outer side of the push rod (94) is movably connected with a pull wire (10), one end, far away from the push rod (94), of the pull wire (10) is movably connected with a rotating rod (11), the surface of the rotating rod (11) is movably connected with a movable contact (12), the outer side of the rotating rod (11) is movably connected with a fixed contact (13), the outer side of the push rod (94) is provided with a limiting groove (14), and the interior of the limiting groove (14) is movably connected with a self-locking mechanism (15);

the self-locking mechanism (15) comprises a main sliding block (151), an auxiliary sliding block (152) is movably connected inside the main sliding block (151), and a movable rod (153) is movably connected to the front side of the auxiliary sliding block (152);

the movable contact (12) is long, and the distance between the fixed contact (13) and the midpoint of the rotating rod (11) is smaller than the size of the movable contact (12);

the inside of spacing groove (14) is provided with tooth, movable rod (153) are total two, are articulated state and pin joint between two movable rod (153) and are located the front of vice slider (152), and swing joint has reset spring between two movable rod (153), two the one end that vice slider (152) were kept away from in movable rod (153) is provided with dentate structure, this dentate structure and the inside tooth looks adaptation of spacing groove (14).

2. The tubular stapler of claim 1, wherein: the inside of body (6) is provided with the connecting rod, adjust knob (4) and the right-hand member swing joint of this connecting rod, the left end and push rod (94) swing joint of this connecting rod.

3. The tubular stapler of claim 1, wherein: the outside of magazine shell (8) is provided with the scale, and the distance between two adjacent scalar numbers is the same, and the shape of magazine shell (8) is cylindrical and the axis is collinear with the axis of body (6).

4. The tubular stapler of claim 1, wherein: the rotary rods (11) and the pull wires (10) are nine, the rotary rods (11) are uniformly distributed with the circle center of the nail propping seat assembly (95) as a reference, namely, the distance and the angle between every two adjacent rotary rods (11) are the same, the rotary rods (11) correspond to the nine pull wires (10), and the nine ends, far away from the rotary rods (11), of the pull wires (10) are movably connected with the nine auxiliary sliding blocks (152) respectively.

5. The tubular stapler of claim 1, wherein: the number of the limiting grooves (14) is nine, the distance and the angle between every two adjacent limiting grooves (14) are the same, the number of the self-locking mechanisms (15) is nine, and the nine self-locking mechanisms (15) are respectively located in the nine limiting grooves (14) and are in sliding connection with the nine limiting grooves.