CN219289623U - Puncture device - Google Patents
Puncture device Download PDFInfo
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- CN219289623U CN219289623U CN202223225820.XU CN202223225820U CN219289623U CN 219289623 U CN219289623 U CN 219289623U CN 202223225820 U CN202223225820 U CN 202223225820U CN 219289623 U CN219289623 U CN 219289623U
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- puncture
- proximity switch
- lancing
- electric motor
- sheath
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Abstract
The utility model discloses a puncture device, which comprises a puncture cone and a puncture main body, wherein the puncture cone comprises a puncture cone rod, a puncture knife and a puncture sheath, the puncture knife is positioned at the head end of the puncture cone, the puncture knife is connected with the puncture cone rod, the puncture knife and the puncture cone rod are positioned in the sheath, and the puncture main body comprises an electric motor, a power conversion assembly and a first proximity switch; the proximal end of the puncture sheath is at least provided with a trigger structure, when the trigger structure moves to a specific position of the first proximity switch, the first proximity switch is closed, the electric motor is started, and the puncture cone rod is pushed by the power conversion assembly to perform puncture; when the trigger structure leaves the specific position of the first proximity switch, the first proximity switch is disconnected, the electric motor stops working, and the puncture cone rod stops puncturing action. The puncture device completes the puncture action by adopting the electric motor, so that an operator saves more labor, has better hand feeling, reduces the risk of operation and improves the operation efficiency.
Description
Technical Field
The utility model relates to the field of medical instruments, in particular to an electric puncture device.
Background
In the current minimally invasive surgery, the foremost tool is a puncture outfit, which is used for puncturing the abdominal wall and establishing a channel between the outside and the abdominal cavity, so that other minimally invasive surgical instruments can enter the body cavity of the human body through the channel to perform the surgery. The puncture outfit mainly comprises a puncture cone and a puncture main body, when the puncture outfit is used, the puncture main body is held by hands to exert force, and skin tissues are squeezed out by a puncture knife at the front end of the puncture cone to enter the abdominal cavity.
The existing puncture cone is divided into two types, namely a knife type puncture cone and a no knife type puncture cone, wherein the knife type puncture cone comprises a stainless steel blade of a telescopic outer protective shell, and the no knife type puncture cone is a plastic double-edge. The two puncture devices push the puncture cone to cut into the skin completely by the thrust of the doctor arm, and once the puncture cone encounters a tissue part which is difficult to puncture, the puncture cone is required to be rotated left and right so that the puncture cone is easier to puncture, if the force is not well grasped, the puncture quality is easy to be reduced, fascia injury is caused, and the problems of fascia injury, hole hernia and the like are caused.
How to solve the technical problem that the common mechanical puncturing device in the prior art is labor-consuming to puncture tissues under the thrust of the hand force of doctors is a technical problem which needs to be solved urgently at present.
Disclosure of Invention
The utility model aims to solve the technical problem that the common mechanical puncturing device in the prior art is labor-consuming to puncture tissues under the thrust of the hand force of a doctor.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows:
the utility model provides a puncture device, includes puncture cone and puncture main part, the puncture cone includes puncture awl pole, puncture sword and puncture sheath, puncture sword is located the head end of puncture cone, puncture sword with puncture awl pole is connected, puncture sword and puncture awl pole are located in the sheath, its characterized in that, puncture main part includes electric motor, power conversion subassembly and first proximity switch;
the proximal end of the puncture sheath is at least provided with a trigger structure, when the trigger structure moves to a specific position of the first proximity switch, the first proximity switch is closed, the electric motor is started, and the puncture conical rod is pushed to perform puncture action through the power conversion assembly; when the trigger structure leaves the specific position of the first proximity switch, the first proximity switch is disconnected, the electric motor stops working, and the puncture cone rod stops puncturing.
According to the utility model, the electric motor, the power conversion assembly and the first proximity switch are added to the puncture device main body, so that the puncture device is changed into an electric mode from a traditional mechanical mode, the probability of misoperation of a doctor is reduced, and the operation pain of a patient is reduced.
Further, the proximal end of the puncture cone rod is provided with at least one first bulge, and the puncture main body further comprises a second proximity switch;
when the first bulge moves to a specific position of the second proximity switch, the first proximity switch is opened, the second proximity switch is closed, the electric motor continues to work until the movement of the puncture knife stops at a first preset position of the puncture sheath, and the electric motor stops working.
Further, the first preset position of the puncture sheath is the deepest position of the puncture sheath.
According to the utility model, the first bulge is added at the proximal end of the puncture conical rod, and the puncture main body is added with the second proximity switch, so that the upward moving tail end position of the puncture device is limited, and the puncture knife blade can be controlled to stop at the deepest part of the knife sheath when the knife sheath moves upwards.
Further, the proximal end of the puncture cone rod is provided with at least one second bulge, and the puncture main body further comprises a third proximity switch;
when the second bulge moves to the specific position of the third proximity switch, the third proximity switch is closed, so that the electric motor continues to work until the movement of the puncture knife stops at the second preset position of the puncture sheath, and the electric motor stops working.
Further, the second preset position of the puncture sheath is the shallowest position of the puncture sheath.
According to the utility model, the second bulge is added at the proximal end of the puncture conical rod, and the puncture main body is provided with the third proximity switch, so that the downward moving tail end position of the puncture device is limited, and when the sheath moves downwards, the puncture knife blade can be controlled to stop at the shallowest position of the sheath.
Further, the puncture main body further comprises a main switch, when the main switch is closed, the puncture device is in an electric mode state, and when the main switch is opened, the puncture device is in a manual mode state.
The utility model increases the total switch mode, can realize the dual purposes of the manual mode and the electric mode of the puncture device, thereby avoiding that an operator can still manually perform the puncture operation if the circuit fails.
Further, the distance between the first protrusion and the second protrusion at the proximal end of the penetration cone rod is at least greater than the length of the cutting edge of the penetration knife.
Further, the second proximity switch of the puncture body and the third proximity switch of the puncture body are both positioned on the same surface of the bracket of the puncture body.
The first proximity switch, the second proximity switch and the third proximity switch can be the same type of switch or different types of switches, so long as the electric motor can be controlled to work.
Further, the puncture main body further comprises a gear switch, the gear switch is used for controlling the rotation speed of the electric motor, and at least one gear is arranged on the gear switch.
Further, the first proximity switch is a photoelectric switch.
Further, the second proximity switch is a photoelectric switch.
Further, the third proximity switch is a photoelectric switch.
With such a design, the utility model has at least the following advantages:
(1) According to the utility model, the traditional manual puncturing device is changed into the electric puncturing device, so that the accuracy of hand-held exertion of an operator is greatly improved, and the puncturing device can flexibly perform puncturing actions.
(2) The electric puncturing device adopts a control mode of the proximity switch, has high puncturing stability, is convenient for doctors to operate, and reduces the operation risk.
(3) The utility model adopts the gear switch to control the rotation speed of the electric motor, thereby realizing the adjustment of the puncture speed.
(4) The utility model has simple structure, good effect, low cost and easy process realization.
Drawings
The foregoing is merely an overview of the present utility model, and the present utility model is further described in detail below with reference to the accompanying drawings and detailed description.
FIG. 1 is a block diagram of the lancing device of the present utility model;
FIG. 2 is a schematic view of a lancing device according to an embodiment of the present utility model;
FIG. 3 is a schematic view illustrating the positions of the trigger lever and the first proximity switch according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a first bump and a second proximity switch, a second bump and a third proximity switch according to an embodiment of the present utility model;
FIG. 5 is a schematic circuit diagram of a gear switch according to an embodiment of the present utility model;
FIG. 6 is a schematic circuit diagram of a master switch and a gear switch according to an embodiment of the present utility model;
in the reference numerals, 1 is a puncture cone, 11 is a puncture knife, 12 is a puncture cone rod, 13 is a puncture sheath, 131 is a trigger rod, 2 is a puncture main body, 21 is an electric motor, 22 is a power conversion component, 23 is a first proximity switch, 24 is a second proximity switch, 121 is a first bulge, 122 is a second bulge, 25 is a third proximity switch, 26 is a gear switch, and 27 is a main switch;
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In this document, "upper", "lower", and the like are used merely to denote relative positional relationships between related parts, and do not limit the absolute positions of the related parts.
Unless otherwise indicated, numerical ranges herein include not only the entire range within both of its endpoints, but also the several sub-ranges contained therein.
The end of each component that is closer to the operator is defined as the proximal end and the end that is farther from the operator is defined as the distal end. The proximal and distal expressions are used for simplicity and clarity of description only and should not be construed as limiting the utility model in any way.
The puncture device comprises a puncture cone 1 and a puncture main body 2, wherein the puncture cone 1 comprises a puncture knife 11, a puncture cone rod 12 and a puncture sheath 13, the puncture knife 11 is positioned at the head end of the puncture cone 2, the puncture knife 11 is connected with the puncture cone rod 12 by adopting a buckling or pin, the puncture knife 11 and the puncture cone rod 12 are positioned in the puncture sheath 13, and the puncture main body 2 comprises an electric motor 21, a power conversion assembly 22 and a first proximity switch 23; the proximal end of the puncture sheath 13 is provided with at least one trigger rod 131, when the trigger rod 131 moves to a specific position of the first proximity switch 23, the first proximity switch 23 is closed, so that the electric motor 21 pushes the puncture cone rod 12 to perform puncture through the power conversion assembly 22; when the trigger lever 131 is separated from the first proximity switch 23 by a specific position, the first proximity switch 23 is turned off, and the electric motor 21 stops operating, so that the puncture tapered lever 12 stops the puncture operation.
Here, the power conversion unit 22 includes a crank wheel, and the electric motor rotates to drive the crank wheel to rotate synchronously, and the puncture awl rod and the blade reciprocate back and forth through the crank stepped shaft and the crank.
Here, the first proximity switch 23 may be an inductive switch, a capacitive switch or an optoelectronic switch, and preferably, the first proximity switch 23 is an optoelectronic switch in an embodiment of the present utility model.
Specifically, in the embodiment of the present utility model, the trigger lever 131 is located at the proximal end of the puncture sheath 13, when the puncture device punctures, the trigger lever 131 of the puncture device moves upward and downward along with the rising and falling of the sheath, and when the trigger lever 131 moves upward to a specific position close to the first proximity switch 23, the trigger lever 131 stops continuing to move upward, at this time, the first proximity switch 23 is closed, and the electric motor starts to work; the trigger lever 131 moves downward, and when the trigger lever 131 moves downward to a specific position away from the first proximity switch 23, the first proximity switch 23 is turned off at this time, and the electric motor stops operating. In the embodiment of the present utility model, the movement of the trigger lever 131 causes the first proximity switch 23 to be closed and opened, resulting in the start and stop of the electric motor, and the first proximity switch 23 is always closed during the puncturing process.
It should be noted that, the specific position of the first proximity switch 23 in the embodiment of the present utility model is defined as a position where the trigger lever 131 moves to a sensing range of the first proximity switch 23.
In the embodiment of the utility model, the combination design of the first proximity switch 23 and the trigger rod 131 is adopted, so that different types of switches and trigger types can be replaced conveniently.
Further, at least one first protrusion 121 is provided at the proximal end of the puncture cone rod 12, and the puncture body 2 further comprises a second proximity switch 24; when the first protrusion 121 moves to a specific position of the second proximity switch 24, the second proximity switch 24 is closed, so that the electric motor 21 continues to operate until the puncture knife movement is stopped at the first preset position of the puncture sheath 13, and the electric motor stops operating.
Here, the first preset position is the deepest part of the puncture sheath 13.
Here, the second proximity switch 24 may be an inductive switch, a capacitive switch or an optoelectronic switch, and preferably, the second proximity switch 24 is an optoelectronic switch in an embodiment of the present utility model.
Specifically, in the puncturing process of the puncturing device according to the embodiment of the present utility model, when the trigger lever 131 moves up to a specific position close to the first proximity switch 23, the trigger lever 131 stops moving up, and at this time, the first proximity switch 23 is closed, so that the puncturing device is connected to the electric motor, and the electric motor starts to work; when the trigger lever 131 starts to move downwards and moves to a specific position away from the first proximity switch 23, the first proximity switch 23 is opened, at this time, if the first protrusion 121 is located at a specific position of the second proximity switch 24, the second proximity switch 24 is closed, and the electric motor still continues to operate until the first protrusion 121 moves to be within the sensing range of the second proximity switch 24, the second proximity switch 24 is opened, and the electric motor stops operating when the movement of the puncture knife 11 is controlled to stop at the deepest position of the puncture sheath 13.
It should be noted that, the specific position of the second proximity switch 24 in the embodiment of the present utility model is defined as a position where the first protrusion 121 moves to a sensing range of the second proximity switch 23.
Further, the proximal end of the puncture cone rod is provided with a second protrusion 122, and the puncture main body further comprises a third proximity switch 25;
when the trigger lever 131 is moved to a specific position away from the first proximity switch 23, the first proximity switch 23 is opened, at which time, if the second protrusion 122 is located at a specific position of the third proximity switch 25, the third proximity switch 25 is closed, the electric motor still continues to operate,
when the second protrusion touches the third proximity switch, the third proximity switch is closed, and is disconnected from the electric motor, so that the movement of the puncture knife is controlled to stop at the second preset position of the puncture sheath 13.
Here, the second preset position is the shallowest position of the puncture sheath 13.
Here, the third proximity switch 25 may be an inductive switch, a capacitive switch or an optoelectronic switch, and preferably, the third proximity switch 25 is an optoelectronic switch in an embodiment of the present utility model.
It should be noted that, the specific position of the third proximity switch 25 in the embodiment of the present utility model is defined as a position where the second protrusion 122 moves to a sensing range of the third proximity switch 25.
The puncture body 2 in the embodiment of the present utility model further includes a main switch 27, and when the main switch 27 is closed, the puncture device is in an electric mode state, and when the main switch 27 is opened, the puncture device is in a manual mode state.
Specifically, a main switch 27 is provided on the side wall of the puncture body for switching between the electric mode and the manual mode of the puncture device, so that when the puncture device fails accidentally in the electric modeStill remainThe puncture operation can be continued in a manual mode, so that the operation time is reduced.
The distance between the first projection 121 and the second projection 122 at the proximal end of the piercing cone is at least greater than the length of the blade edge of the piercing knife 11.
The embodiment of the utility model is provided with the first bulge which is used for ensuring that the uppermost distance of the operation of the puncture device can control the puncture knife blade to stop at the deepest part of the sheath.
The embodiment of the utility model is provided with the second bulge which is used for ensuring that the lowest running distance of the puncture device can control the puncture knife blade to stop at the shallowest position of the sheath.
Further, the second proximity switch 24 of the puncture body 2 and the third proximity switch 25 of the puncture body 2 are both located on the same surface of the holder of the puncture body 2.
The puncture body 2 further comprises a gear switch 26, the gear switch 26 is used for controlling the rotation speed of the electric motor, and the gear switch 26 is provided with at least one gear.
Specifically, the gear switch 26 is configured to control the working current of the electric motor 21, so as to adjust the speed of penetration, and specifically, the greater the working current of the electric motor, the lower the rotation speed of the electric motor 21, and the slower the penetration speed.
The first proximity switch 23, the second proximity switch 24 and the third proximity switch 25 in the utility model can be the same type of switch or different types of switches, as long as the electric motor 21 can be controlled to work
The puncture device of the embodiment of the utility model has the following working processes: when puncturing human abdominal wall tissue, the puncture awl pole sleeve of puncture awl receives resistance and upwards moves axially, and the trigger lever of puncture awl pole sleeve rear end triggers first proximity switch, and the primary circuit is put through, and electric motor rotates, drives puncture awl pole and blade up-and-down reciprocating motion through power conversion component. After the puncture is completed, the puncture cone resistance is released, the puncture cone rod sleeve moves downwards and axially to reset, the first proximity switch is reset, the primary circuit is disconnected, if no secondary circuit exists, the electric motor is stopped immediately, if the secondary circuit exists, the secondary circuit is connected, and the electric motor cannot be stopped immediately at the moment. Specifically, a first bulge is arranged on the puncture cone rod, when the first bulge is not positioned at a termination position, the electric motor continues to rotate, when the first bulge moves to the termination position, a second proximity switch is triggered, a secondary circuit is disconnected, the blade stops at the deepest part of the sheath, and at the moment, if the circuit fails, the puncture cone rod sleeve is pushed up, the blade cannot expose the sheath, and a protection effect is achieved; the puncture awl pole is last to be equipped with the second arch, and when the second is protruding not to be located the termination position, and electric motor continues to rotate, and when the second protruding position of stopping that moves, trigger third proximity switch, secondary circuit disconnection, the blade stops in the shallowest department of sheath, at this moment, if the circuit breaks down, pushes up puncture awl pole sleeve, and the blade can expose the sheath, and the operator still can manual the puncture operation. Particularly, under the condition that the circuit is normal, if a main switch is arranged in the primary circuit, the main switch is closed, the puncture outfit is in an electric state, the main switch is opened, and the puncture outfit is in a manual state, so that the manual and electric dual-purpose puncture outfit can be realized. The gear switch of the puncture main body can shift gears before or during puncture.
On one hand, the utility model adopts a mode of controlling the starting of the electric motor by the proximity switch, and the puncture conical rod drives the blade to reciprocate back and forth to perform the puncture action by the power conversion assembly, so that an operator does not need to use great force, and the operation convenience is brought to the operator; on the other hand, a mode of controlling the electric motor to stop by a proximity switch is adopted to realize the accurate control of the stop position of the blade; on the other hand, the speed of the electric motor is controlled by a gear switch to realize the adjustment of the puncture speed.
Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.
It is to be understood that the utility model is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.
Claims (10)
1. The utility model provides a puncture device, includes puncture cone and puncture main part, the puncture cone includes puncture awl pole, puncture sword and puncture sheath, puncture sword is located the head end of puncture cone, puncture sword with puncture awl pole is connected, puncture sword and puncture awl pole are located in the sheath, its characterized in that, puncture main part includes electric motor, power conversion subassembly and first proximity switch;
the proximal end of the puncture sheath is at least provided with a trigger structure, when the trigger structure moves to a specific position of the first proximity switch, the first proximity switch is closed, the electric motor is started, and the puncture conical rod is pushed to perform puncture action through the power conversion assembly; when the trigger structure leaves the specific position of the first proximity switch, the first proximity switch is disconnected, the electric motor stops working, and the puncture cone rod stops puncturing.
2. The lancing apparatus of claim 1, wherein the proximal end of the lancing cone is provided with at least a first projection, and the lancing body further comprises a second proximity switch;
after the first proximity switch is opened, when the first protrusion is positioned at a specific position of the second proximity switch, the second proximity switch is closed, so that the electric motor continues to work until the movement of the puncture knife stops at a first preset position of the puncture sheath, and the second proximity switch controls the electric motor to stop working.
3. The lancing apparatus of claim 2, wherein the proximal end of the lancing cone is provided with at least a second projection, and the lancing body further comprises a third proximity switch;
after the first proximity switch is opened, when the second protrusion is positioned at a specific position of the third proximity switch, the third proximity switch is closed, so that the electric motor continues to work until the movement of the puncture knife stops at a second preset position of the puncture sheath, and the third proximity switch controls the electric motor to stop working.
4. The lancing apparatus of claim 3, wherein said lancing body further comprises a main switch, said lancing apparatus being in an electric mode state when said main switch is closed and in a manual mode state when said main switch is open.
5. The lancing device of claim 3, wherein the first projection on the proximal end of the lancing cone is spaced from the second projection by at least a distance greater than the blade length of the lancing knife.
6. A lancing device according to claim 3, wherein the second proximity switch of the lancing body and the third proximity switch of the lancing body are both located on the same surface of the carriage of the lancing body.
7. A lancing device according to claim 3, wherein said lancing body further comprises a gear switch for controlling the rotational speed of said electric motor, said gear switch being provided with at least one gear.
8. The lancing device of claim 3, wherein the first proximity switch, the second proximity switch, and the third proximity switch are opto-electronic switches.
9. The lancing device of claim 2, wherein the first predetermined position of the lancing sheath is the deepest of the lancing sheath.
10. A lancing device according to claim 3, wherein the second predetermined position of the lancing sheath is the shallowest point of the lancing sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223225820.XU CN219289623U (en) | 2022-12-02 | 2022-12-02 | Puncture device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223225820.XU CN219289623U (en) | 2022-12-02 | 2022-12-02 | Puncture device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219289623U true CN219289623U (en) | 2023-07-04 |
Family
ID=86953709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223225820.XU Active CN219289623U (en) | 2022-12-02 | 2022-12-02 | Puncture device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219289623U (en) |
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2022
- 2022-12-02 CN CN202223225820.XU patent/CN219289623U/en active Active
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