CN219250307U - Electric driving tissue cutting closer - Google Patents

Abstract

The utility model relates to an electric driving tissue cutting closer, which belongs to the technical field of surgical instruments and comprises a closing system and a cutting system, wherein the closing system comprises a closing sleeve, one end of the closing sleeve is connected with a closing driving pipe, the other end of the closing sleeve is connected with a jaw, a closing driving block is arranged on the closing driving pipe, the closing driving block is pushed to move horizontally by the closing driving wheel, and the closing driving block drives the closing driving pipe and the closing sleeve to move; the cutting system comprises a cutting sleeve, the cutting sleeve is sleeved outside the closed sleeve, a cutting driving rack is fixed on the cutting sleeve, and the cutting driving middle tooth drives the cutting driving gear to rotate so as to drive the cutting driving rack to drive the cutting sleeve to horizontally move; one end of the cutting sleeve is provided with a cutter block, a cutting knife is arranged in the cutter block, and the cutter block moves along with the movement of the cutting sleeve to finally enable the cutter to move, so that tissue cutting is realized. The utility model is electric one-key operation, the operation process is simple and efficient, and the risks of operation errors and operation confusion can be avoided.

Description

Electric driving tissue cutting closer

Technical Field

The utility model belongs to the technical field of surgical instruments, and particularly relates to an electric driving tissue cutting closer.

Background

Tissue cutting occluders are used exclusively for the severing and coagulation of blood vessels and for the cutting, grasping and separation of tissue during open or laparoscopic, surgical and gynecological operations.

Tissue cutting closures in the current market are all manually operated to complete the closing and cutting process. The modes of operation fall broadly into two categories. Aiming at the tissues to be sealed and cut, the first type of products is to realize the closing of the front-end jaw by manually operating a closing trigger, then the instrument locks the closing trigger, an operator manually operates a sealing button to realize tissue sealing, waits for the completion of sealing, and the operator continuously manually operates a cutting trigger to cut so as to realize the whole sealing cutting process. The whole operation process can be realized only by three operations, the operation is complex, the operator manually completes the whole process, the operation time of the operation process is increased, and the risk of confusion of closing and cutting operations exists. The second type of product is that the front end jaw is closed by manually operating the closing trigger, then the closing process is realized by triggering the closing button by the trigger, after the closing process is finished, the closing trigger cannot be loosened, and the cutting trigger needs to be manually operated continuously to realize cutting. The method is also complex in operation, difficult in operation and inconvenient.

Aiming at the tissue which is only sealed, the first product also needs secondary operation, only the cutting operation link is omitted, the operation is more complex, and the operation time of the operation process is increased. The second type of product is to manually operate the closure trigger to effect the front end jaw closure, and then to effect the closure process by the trigger itself activating the closure button. This approach, while presently only one operation, is rarely used, and only a small portion of the operations that are closed and not cut during the procedure.

Disclosure of Invention

The utility model aims to solve the problem of providing an electric driven tissue cutting closer which is convenient to operate, reduces the operation time and avoids the risks of confusion of closing and cutting operations.

In order to solve the technical problems, the utility model adopts the following technical scheme: the electric driving tissue cutting closer comprises a closing system and a cutting system, wherein the closing system comprises a closing sleeve, one end of the closing sleeve is connected with a closing driving pipe, the other end of the closing sleeve is connected with a jaw, a closing driving block is arranged on the closing driving pipe and is embedded into a pushing groove of a closing driving wheel, a motor gear drives the closing driving wheel to rotate, the pushing groove of the closing driving wheel pushes the closing driving block to horizontally move, the motor gear is arranged at the output end of the motor and is driven to rotate by the motor, and the closing driving block drives the closing driving pipe and the closing sleeve to move in the same direction;

the cutting system comprises a cutting sleeve, the cutting sleeve is sleeved outside the closing sleeve, a cutting driving rack is fixed at one end, close to the closing driving pipe, of the cutting sleeve, a limiting plate is arranged behind the closing driving wheel, an arc limiting groove is formed in the circumferential position of the limiting plate, a protrusion matched with the arc limiting groove is arranged on the back surface of the closing driving wheel, the protrusion moves in the arc limiting groove along with the rotation of the closing driving wheel, a cutting driving middle tooth is fixed on the back surface of the limiting plate, when the protrusion reaches a limit position in the arc limiting groove, the closing driving wheel continues to rotate, the protrusion can drive the cutting driving middle tooth on the limiting plate and the limiting plate to rotate, the cutting driving middle tooth is meshed with the cutting driving rack, and the cutting driving gear is meshed with the cutting driving rack, so that the cutting driving middle tooth drives the cutting driving rack to rotate to drive the cutting sleeve to horizontally move;

one end of the cutting sleeve close to the jaw is provided with a cutter block which is fixed in the cutting sleeve, the cutter is arranged in the cutter-carrying block, and the cutter-carrying block moves along with the movement of the cutting sleeve to finally move the cutter so as to cut tissues;

the closing sleeve is sleeved on the outer side of the band knife block, and sliding openings are formed in the closing sleeve on the upper side and the lower side of the band knife block, so that the band knife block of the cutting system cannot be driven to move simultaneously when the closing sleeve moves during closing operation of the closing system, and independent operation of the closing system and the cutting system is guaranteed.

Further, the jaw comprises a lower jaw and an upper jaw, the lower jaw is a fixed jaw, the upper jaw is a movable jaw, kidney-shaped holes are formed in the tail ends of the lower jaw and the upper jaw, a connecting pin is arranged at the output end of the closed sleeve, and the connecting pin penetrates through the kidney-shaped holes to enable the lower jaw and the upper jaw to be hinged.

Further, the lower jaw is secured within the jaw housing.

Further, a cutting groove is arranged in the jaw.

Further, a closing spring is arranged on the closing driving pipe and located above the closing driving block, and a closing reset spring is arranged at one end, far away from the closing driving wheel, of the closing driving block.

Further, the bottom of the cutter-carrying block is provided with a limit plug, the limit plug is inserted into a limit hole of the cutting sleeve, the front end of the cutter-carrying block is provided with a blade guide frame, and the mounting end of the cutter is inserted into the cutter-carrying block and extends out along the blade guide frame.

Further, the installation end of cutting knife is the zigzag, take the inside cutting knife installation cavity that is provided with of sword piece, cutting knife installation cavity top interval in proper order is provided with slope stopper and tip stopper, the cutting knife slope is parallel after inserting the cutting knife installation cavity, and the tip of cutting knife is lived to slope stopper and tip stopper block, realizes the installation of cutting knife fixedly.

Further, a closing travel switch is arranged below the closing driving block, and tissue closing is achieved by moving the closing driving block to touch the closing travel switch.

Further, a cutting travel switch is arranged above the cutting sleeve, and the cutting travel switch is touched through movement of the cutting driving rack to achieve return of each mechanism.

Further, the motor, the closing travel switch and the cutting travel switch are electrically connected with a host, the host is electrically connected with a closing cutting button and a closing button respectively, and the closing cutting button and the closing button can be arranged on a shell outside the motor.

The utility model has the following specific effects:

the utility model has compact structure, only drives the cutting and closing two sets of systems by one motor, and ensures that the closing and cutting processes are orderly carried out by the cooperation of all transmission structures.

The utility model is an electric one-key operation, can realize closing and cutting one-key completion, and can select to only independently close tissues without cutting. The two modes can realize the whole process of closing and cutting only by pressing one key by an operator, and the closed tissue is not required to be closed firstly by manual operation and then cut by manual operation. The utility model is controlled by the operation keys, the operation process is simple, the risks of operation errors and operation confusion can be avoided, and doctors can operate more conveniently and efficiently in the operation process.

Drawings

The advantages and the manner of carrying out the utility model will become more apparent from the following detailed description, taken in conjunction with the accompanying drawings, in which the content shown is meant to illustrate, but not to limit, the utility model in any sense, and wherein:

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

FIG. 2 is a rear view of the present utility model;

FIG. 3 is a partial schematic view of a projection of the present utility model at one end of an arcuate limit slot;

FIG. 4 is a partial schematic view of the present utility model with the projection at the other end of the arcuate slot;

FIG. 5 is a schematic view of the connection of the closure sleeve of the present utility model;

FIG. 6 is a schematic view of the connection of the cutting cannula of the present utility model;

FIG. 7 is a partial schematic view of the end of the cutting cannula of the present utility model;

FIG. 8 is a schematic view of the structure of the tape blade of the present utility model;

FIG. 9 is a top view of the tape blade of the present utility model;

FIG. 10 is a cross-sectional view A-A of FIG. 9 in accordance with the present utility model;

FIG. 11 is a schematic view of the installation of the cutting blade of the present utility model;

FIG. 12 is a schematic view of the assembled construction of the closure sleeve and cutting sleeve of the present utility model;

FIG. 13 is a schematic view of the position of the cutting travel switch of the present utility model;

fig. 14 is a schematic view of the position of the closed travel switch of the present utility model.

In the figure:

1. a jaw; 2. closing the sleeve; 3. cutting the sleeve; 4. cutting a driving rack; 5. cutting the driving gear; 6. a motor gear; 7. a closing spring; 8. closing a return spring; 9. closing the driving block; 10. closing the driving wheel; 11. a motor; 12. cutting the drive intermediate teeth; 13. a connecting pin; 14. a buckle; 15. closing the driving tube; 16. a cutter block is arranged; 17. a cutting knife; 18. a cutting travel switch; 19. closing a travel switch; 20. a limiting plate; 21. an arc-shaped limit groove; 22. a protrusion; 23. an upper jaw; 24. a lower jaw; 25. a blade guide frame; 26. an inclined limiting block; 27. an end limiting block; 28. a jaw housing.

Detailed Description

As shown in fig. 1 and 14, an electrically driven tissue cutting closure of the present utility model,

as shown in fig. 1 and 2, the cutting device comprises a closing system and a cutting system, wherein the closing system comprises a closing sleeve 2, one end of the closing sleeve 2 is connected with a closing driving pipe 15 through a buckle 14, the other end of the closing sleeve 2 is connected with a jaw 1, a closing driving block 9 is arranged on the closing driving pipe 15, the closing driving block 9 is embedded into a pushing groove of a closing driving wheel 10, a motor gear 6 drives the closing driving wheel 10 to rotate, the pushing groove of the closing driving wheel 10 drives the closing driving block 9 to horizontally move, the motor gear 6 is arranged at the output end of a motor 11 and is driven to rotate by the motor 11, and the closing driving block 9 drives the closing driving pipe 15 and the closing sleeve 2 to move in the same direction;

as shown in fig. 3 and fig. 4, the cutting system comprises a cutting sleeve 3, the cutting sleeve 3 is sleeved outside a closing sleeve 2, a cutting driving rack 4 is fixed at one end of the cutting sleeve 3, which is close to a closing driving pipe 15, a limiting plate 20 is arranged at the rear (far from a motor gear 6 side) of the closing driving pipe 10, an arc limiting groove 21 is arranged at the circumferential position of the limiting plate 20, a protrusion 22 matched with the arc limiting groove 21 is arranged at the back of the closing driving pipe 10, the protrusion 22 moves in the arc limiting groove 21 along with the rotation of the closing driving pipe 10, a cutting driving middle tooth 12 is fixed at the back (far from the closing driving pipe 10 side) of the limiting plate 20, when the protrusion 22 reaches a limit position in the arc limiting groove 21, the closing driving pipe 10 continues to rotate, the protrusion 22 drives the cutting driving middle tooth 12 on the limiting plate 20 and the limiting plate 20 to be meshed with the cutting driving gear 5, the cutting driving gear 5 is meshed with the cutting driving rack 4, and the cutting driving middle tooth 12 drives the cutting driving gear 5 to rotate, so that the cutting driving rack 4 drives the cutting sleeve 3 to horizontally move;

as shown in fig. 6 and 7, one end of the cutting sleeve 3, which is close to the jaw 1, is provided with a cutter block 16, the cutter block 16 is fixed in the cutting sleeve 3, a cutter is fixed in the cutter block 16, and the cutter 17 is finally moved by the movement of the cutter block 16 along with the movement of the cutting sleeve 3, so that tissue cutting is realized;

as shown in fig. 5 and 12, the closing sleeve 2 is sleeved on the outer side of the band knife block 16, and the closing sleeve 2 on the upper side and the lower side of the band knife block 16 are provided with sliding openings, so that when the closing system is in closing operation, the band knife block 16 of the cutting system is not driven to move simultaneously when the closing sleeve 2 moves, and the independent operation of the closing system and the cutting system is ensured.

Wherein the closure system and the cutting system of the present utility model are mounted within a housing.

The jaw 1 comprises a lower jaw 24 and an upper jaw 23, wherein the lower jaw 24 is a fixed jaw, the upper jaw 23 is a movable jaw, kidney-shaped holes are formed in the tail ends of the lower jaw 24 and the upper jaw 23, a connecting pin 13 is arranged at the output end of the closed sleeve 2, and the connecting pin 13 penetrates through the kidney-shaped holes to hinge the lower jaw 24 and the upper jaw 23.

Wherein the lower jaw 24 is secured within the jaw housing 28.

Wherein, a cutting groove is arranged in the jaw 1.

Wherein, be provided with the closure spring 7 on the closure drive pipe 15, closure spring 7 is located the top of closure drive piece 9, and closure drive piece 9 is kept away from closure drive wheel 10 one end and is installed closure reset spring 8.

As shown in fig. 8 to 11, a limit plug is provided at the bottom of the band blade block 16, the limit plug is inserted into a limit hole of the cutting sleeve 3, a blade guide frame 25 is provided at the front end of the band blade block 16, and the mounting end of the cutting blade 17 is inserted into the band blade block 16 and extends out along the blade guide frame 25.

Wherein, the installation end of cutting knife 17 is the zigzag, takes the inside cutting knife installation cavity that is provided with of knife block 16, and cutting knife installation cavity top interval in proper order is provided with slope stopper 26 and tip stopper 27, and the cutting knife 17 slope is changed into parallel after inserting the cutting knife installation cavity, and the tip of cutting knife 17 is locked to slope stopper 26 and tip stopper 27, realizes the installation of cutting knife 17 fixedly.

Wherein the closure sleeve 2 is longer than the cutting sleeve 3.

As shown in fig. 14, a closing travel switch 19 is arranged below the closing drive block 9, and tissue closing is achieved by moving the closing drive block 9 to touch the closing travel switch 19.

As shown in fig. 13, a cutting travel switch 18 is mounted above the cutting sleeve 3, and the cutting travel switch 18 is touched by the movement of the cutting drive rack 4 to achieve the return of each mechanism.

Wherein, the closing travel switch 19 and the cutting travel switch 18 can be both installed on the inner wall of the shell.

The motor 11, the closing travel switch 19 and the cutting travel switch 18 are electrically connected with a host, and the host is electrically connected with a closing cutting key and a closing key respectively, wherein the closing cutting key and the closing key can be mounted on a shell outside the motor 11.

The utility model can realize the functions of sealing and cutting, and can also realize the functions of sealing and cutting only. The two keys respectively realize two functions.

The control method of the utility model comprises the following steps:

when a closed cutting key is pressed and the functions of closing and cutting are selected, the utility model drives two systems of cutting and closing through one motor 11, and the driving of the motor 11 is completed through a host; when the closed cutting key is pressed, the host receives a signal, the current is output to the motor 11, and the motor 11 starts to start.

The closing system is characterized in that a motor gear 6 drives a closing driving wheel 10, and a pushing groove of the closing driving wheel 10 drives a closing driving block 9 to horizontally move towards the rear end. The closing driving block 9 is fixed on the closing driving pipe 15, the clamping buckle 14 fixes the closing driving pipe 15 on the closing sleeve 2, the closing driving block 9 moves backwards to drive the closing sleeve 2 to move backwards, the connecting pin 13 at the end part of the closing sleeve 2 passes through the kidney-shaped holes of the upper jaw 23 and the lower jaw 24 to be connected with the upper jaw 24 and the lower jaw 24, and when the closing sleeve 2 moves backwards, the closing sleeve 2 drives the connecting pin 13 at the end part to move backwards, and the connecting pin 13 slides in the kidney-shaped holes of the two jaws 1, so that the closing of the jaws 1 is realized.

After the jaws 1 are closed, the closing drive block 9 touches the closing travel switch 19, the closing travel switch 19 transmits a signal to the host computer, and the host computer starts a closing signal after recognizing that the jaws 1 are closed, and at the moment, the current passing through the jaws 1 closes tissues at the jaws 1. An impedance sensor in the host receives feedback of impedance at the closed tissue, and starts the motor 11.

The motor 11 drives the closed driving wheel 10 to rotate towards the original direction, the closed driving block 9 is still located at the limit position until the protrusion 22 of the closed driving wheel 10 contacts with one side of the arc-shaped limit groove 21 at the circumferential position of the limit plate 20, then the protrusion 22 drives the cutting driving middle tooth 12 to rotate together, thereby driving the cutting driving gear 5 to rotate, the cutting driving gear 5 drives the cutting driving rack 4 to move forwards, meanwhile drives the cutting sleeve 3 to move forwards, the band knife block 16 is fixed at the end part of the cutting sleeve 3, the cutting knife 17 is fixed in the band knife block 16, and finally the movement of the band knife block 16 enables the cutting knife 17 to move forwards until the cutting knife block moves into the cutting groove in the jaw 1 to cut tissues.

After the closed cutting is finished, the cutting driving rack 4 touches the cutting travel switch 18, the motor 11 receives feedback of the cutting travel switch 18, the motor 11 reverses, the motor gear 6 reversely rotates to drive the closed driving wheel 10 to anticlockwise rotate, the closed driving wheel 10 continuously gives way, the closed driving block 9 moves forwards along with the action of the closed reset spring 8, the closed driving block 9 is finally restored to the initial position, the closed sleeve 2 is also restored to the initial position, and the jaws 1 are opened.

The closing driving wheel 10 rotates anticlockwise, the protrusion 22 on the closing driving wheel 10 can touch the other side of the arc-shaped limiting groove 21 of the limiting plate 20, so that the cutting driving middle tooth 12 is driven to rotate, the cutting driving gear 5 is driven to rotate reversely, and meanwhile the cutting driving rack 4 is driven to move backwards, and the cutting knife 17 is restored to the initial position.

When the close key is pressed and only the "close" function is selected, the motor 11 of the present utility model drives only the closing system. When the closing stroke is finished, the closing stroke switch 19 transmits a signal to the host computer, the host computer can recognize that the jaw 1 is closed to start the closing signal, at the moment, the tissue at the jaw 1 is closed by the current passing through the jaw 1, the impedance sensor in the host computer receives the feedback of the impedance at the closed tissue, after the closing is finished, the motor 11 receives the signal, the motor 11 is reversed, and the closing reset is realized.

The application steps of the product of the utility model are as follows:

1. the utility model is electrically connected with a host;

2. the utility model is extended into the human body; the jaw 1 is extended to the target tissue and the tissue is placed inside the jaw 1.

3. If the tissue is cut in a closed way, the closed cutting key is pressed down. When the host prompting sound is heard, the whole process is ended; if only the tissue is closed, the closing key is pressed. When the host prompting sound is heard, the representative process is ended.

The foregoing describes the embodiments of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by this patent.

Claims (9)

1. An electrically driven tissue cutting closure, characterized by: the cutting device comprises a closing system and a cutting system, wherein the closing system comprises a closing sleeve, one end of the closing sleeve is connected with a closing driving pipe, the other end of the closing sleeve is connected with a jaw, a closing driving block is arranged on the closing driving pipe, the closing driving block is embedded into a pushing groove of a closing driving wheel, a motor gear drives the closing driving wheel to rotate, the pushing groove of the closing driving wheel pushes the closing driving block to horizontally move, the motor gear is arranged at the output end of a motor and is driven to rotate by the motor, and the closing driving block drives the closing driving pipe and the closing sleeve to move; the cutting system comprises a cutting sleeve, the cutting sleeve is sleeved outside a closed sleeve, a cutting driving rack is fixed at one end, close to a closed driving pipe, of the cutting sleeve, a limiting plate is arranged behind the closed driving pipe, an arc limiting groove is formed in the circumferential position of the limiting plate, a protrusion matched with the arc limiting groove is arranged on the back surface of the closed driving pipe, the protrusion moves in the arc limiting groove along with the rotation of the closed driving pipe, a cutting driving middle tooth is fixed on the back surface of the limiting plate, the cutting driving middle tooth is meshed with a cutting driving gear, and the cutting driving gear is meshed with the cutting driving rack; the cutting sleeve is provided with a cutter block at one end close to the jaw, the cutter block is fixed in the cutting sleeve, and a cutting knife is arranged in the cutter block; the closing sleeve is sleeved on the outer side of the cutter-carrying block, and sliding openings are formed in the closing sleeve on the upper side and the lower side of the cutter-carrying block.

2. The electrically driven tissue cutting closure of claim 1, wherein: the jaw comprises a lower jaw and an upper jaw, wherein the lower jaw is a fixed jaw, the upper jaw is a movable jaw, kidney-shaped holes are formed in the tail ends of the lower jaw and the upper jaw, a connecting pin is arranged at the output end of the closed sleeve, and the connecting pin penetrates through the kidney-shaped holes to enable the lower jaw and the upper jaw to be hinged.

3. The electrically driven tissue cutting closure of claim 2, wherein: the lower jaw is fixed in the jaw housing.

4. The electrically driven tissue cutting closure of claim 1, wherein: a cutting groove is arranged in the jaw.

5. The electrically driven tissue cutting closure of claim 1, wherein: the closing driving pipe is provided with a closing spring, the closing spring is positioned above the closing driving block, and one end, far away from the closing driving wheel, of the closing driving block is provided with a closing reset spring.

6. The electrically driven tissue cutting closure of claim 1, wherein: the utility model discloses a cutting device, including cutting knife, cutting sleeve, band knife piece, blade guide frame, band knife piece bottom is provided with spacing plug, spacing plug inserts in the spacing hole of cutting sleeve, band knife piece front end is provided with the blade guide frame, the installation end of cutting knife inserts band knife piece setting to stretch out along the blade guide frame.

7. The electrically driven tissue cutting closure of claim 6, wherein: the installation end of cutting knife is the zigzag, take the inside cutting knife installation cavity that is provided with of sword piece, cutting knife installation cavity top interval in proper order is provided with slope stopper and tip stopper, the cutting knife slope is parallel after inserting the cutting knife installation cavity, and tip stopper block of slope stopper and tip of cutting knife is lived.

8. The electrically driven tissue cutting closure of claim 1, wherein: a closed travel switch is arranged below the closed driving block; and a cutting travel switch is arranged above the cutting sleeve.

9. The electrically driven tissue cutting closure of claim 8, wherein: the motor, the closing travel switch and the cutting travel switch are electrically connected with a host, and the host is electrically connected with the closing cutting key and the closing key respectively.

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