CN113813027B - Electric puncture outfit - Google Patents
Electric puncture outfit Download PDFInfo
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- CN113813027B CN113813027B CN202111170426.8A CN202111170426A CN113813027B CN 113813027 B CN113813027 B CN 113813027B CN 202111170426 A CN202111170426 A CN 202111170426A CN 113813027 B CN113813027 B CN 113813027B
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- 230000033001 locomotion Effects 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims description 20
- 238000000034 method Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 8
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- 210000003815 abdominal wall Anatomy 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 210000000683 abdominal cavity Anatomy 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 210000003195 fascia Anatomy 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 206010019909 Hernia Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
- A61B2017/00398—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like using powered actuators, e.g. stepper motors, solenoids
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The application discloses an electric puncture outfit, which comprises a puncture assembly, wherein the puncture assembly comprises a cutter bar and a blade, the front end of the cutter bar is connected with the rear end of the blade, the rear end of the cutter bar is connected with the front end of the power conversion assembly, and the electric puncture outfit further comprises: an electric drive assembly, a power conversion assembly, for generating a driving force; the power conversion assembly is used for transmitting the driving force to the puncture assembly so as to enable the puncture assembly to perform forward and backward reciprocating motion; the rear end of the power conversion assembly is electrically connected with the electric driving assembly, and the front end of the power conversion assembly is connected with the rear end of the puncture assembly. According to the application, the electric driving piece is adopted to convert electric energy into kinetic energy to drive the puncture outfit to perform puncture movement, so that the problems of uneven force application and poor puncture effect in the manual puncture process are avoided.
Description
Technical Field
The application relates to the field of medical appliances, in particular to an electric puncture outfit applied to surgical operations.
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 sleeve and a puncture needle, when the puncture outfit is used, the puncture needle is firstly inserted into the puncture sleeve, then the rear end of the puncture sleeve is held by a hand to exert force, and skin tissues are extruded by the tip of the front end of the puncture needle to enter the abdominal cavity.
The main components of the puncture needle for the laparoscope in the current market are a knife type and a no knife type, wherein the knife type is a stainless steel blade comprising a telescopic outer protective shell, and the no knife type is a plastic double-edge. The puncture needles for the two puncture devices are disposable and cannot be detached and replaced. The knife-shaped blade part is too sharp, so that the tissue is easily damaged, and the healing after operation is affected; the knife-free blade is too blunt and the force required for puncturing is too large.
When the existing knife-type puncture outfit punctures, the knife edge is always exposed outside the knife sheath, and the knife bar is pushed to cut into the skin by the pushing force of the doctor arm. The continuous contact between the blade and the skin is relatively static cutting. As shown in fig. 1, the structure of the disposable knife-type puncture outfit in the prior art comprises a sleeve a, a puncture needle b and a control sheath telescopic assembly c, wherein the control sheath telescopic assembly c is positioned at the front end of the sleeve a, the front end of the sleeve a also comprises a plastic sheath d, the puncture needle b is positioned in the sleeve a, the puncture needle consists of a stainless steel core rod and a stainless steel blade e, and the stainless steel blade e is matched with the plastic sheath d. During puncturing, the plastic knife sheath d is retracted by skin resistance to expose the blade of the stainless steel blade e, and the blade of the stainless steel blade e can be cut into the skin to realize puncturing by continuously pressing the puncture needle with force. In the structure, the puncturing blade is always extruded in a skin cutting gap, the relative speed with skin tissue is low, the structure belongs to typical static cutting, although the puncturing force can be reduced, certain pressing force is still needed during puncturing, a puncture device is sometimes required to be rotated left and right to enable the puncture device to be easier to puncture when a tissue part which is difficult to puncture is encountered, if the force is not easy to grasp, the puncturing quality is easy to be reduced, fascia injury is caused, and the problems of fascia injury, hole hernia and the like are caused. And the puncture needle has the advantage that the puncture speed depends on the arm strength of a doctor and the cutting difficulty of tissues.
Disclosure of Invention
The application aims to solve the technical problem of providing an electric puncture outfit, which can solve the problem that the puncture outfit in the prior art is greatly influenced by the strength of doctors and the difficulty of tissue puncture under the condition of ensuring the puncture quality.
In order to solve the technical problems, the technical scheme provided by the application is as follows:
the utility model provides an electronic puncture outfit, includes puncture subassembly, puncture subassembly includes cutter arbor and blade, the front end of cutter arbor with the rear end of blade links to each other, its characterized in that still includes: an electric driving component, a power conversion component,
the electric driving assembly is used for generating driving force;
the power conversion assembly is used for transmitting the driving force to the puncture assembly so as to enable the puncture assembly to perform forward and backward reciprocating motion;
the rear end of the cutter bar is connected with the front end of the power conversion assembly, and the rear end of the power conversion assembly is electrically connected with the electric driving assembly.
According to the application, the electric driving assembly is adopted to convert electric energy into kinetic energy to drive the puncture assembly of the puncture outfit to perform puncture movement, so that the problems of uneven force application and poor puncture effect in the manual puncture process are avoided, the medical risk of manual misoperation is reduced, the puncture force is increased on tissues which are difficult to puncture, and the discomfort of patients is reduced.
Further, the power conversion assembly comprises a power transmission assembly, a connecting rod,
the power transmission assembly is connected with the electric driving assembly and is used for transmitting the driving force of the electric driving assembly to the connecting rod;
one end of the connecting rod is connected with the rear end of the cutter bar, and the other end of the connecting rod is connected with the power transmission assembly and used for converting curve reciprocating motion of the power transmission assembly into linear reciprocating motion.
According to the application, through the linkage action of the power transmission assembly and the connecting rod, the kinetic energy of the electric driving assembly is firstly converted into curve reciprocating motion and then converted into the reciprocating motion of the cutter bar which linearly advances and retreats, and the manual operation is changed into automatic execution, so that uneven force application of operators is avoided.
Further, the power conversion assembly comprises a support, a support through hole is formed in a base of the support, the inner diameter of the support through hole is larger than the outer diameter of the cutter bar, and the cutter bar penetrates through the support through hole to be connected with the connecting rod.
Further, the electric driving assembly comprises a battery pack, a loop switch and an electric motor, wherein the battery pack, the loop switch and the electric motor are sequentially and electrically connected to form a closed loop, and the loop switch is located on the support base.
In order to reasonably layout each component, the application adds the bracket, the loop switch is positioned on the bracket, and the loop switch can be fixed and is convenient to control.
Further, the bracket base is provided with a loop switch groove for accommodating the loop switch, the loop switch is used for controlling the electric motor to work,
the side wall of the hollow column of the cutter bar sleeve is provided with a cutter bar sleeve bulge which is used for controlling the closing and opening of the loop switch, and when the cutter bar sleeve moves towards the rear end, the cutter bar sleeve bulge is contacted with the loop switch, so that the electric motor starts to work; when the cutter bar sleeve moves towards the front end, the cutter bar sleeve bulge is disconnected with the loop switch, so that the electric motor stops working.
According to the application, the cutter bar sleeve is arranged on the side wall of the rear end of the cutter bar sleeve to convexly control the closing and opening of the loop switch, and the loop switch does not need to be controlled to be opened or closed by external force of an operator, so that the puncture motion is started directly in the process of the puncture device penetrating tissues, and the operation convenience is brought to the operator.
Further, the power transmission assembly comprises a wheel disc, the wheel disc is connected with the electric motor, a small hole is formed in the wheel disc, a first through hole of a connecting rod is formed in the rear end of the connecting rod, and the first through hole of the connecting rod is fixedly connected with the small hole through a pin.
The rear end of cutter arbor is equipped with a cutter arbor through-hole, the front end of connecting rod is equipped with connecting rod second through-hole, the cutter arbor through-hole with connecting rod second through-hole passes through nail round pin fixed connection.
According to the application, the small hole of the wheel disc is fixedly connected with the first through hole of the connecting rod by adopting the pin, and the cutter bar through hole is fixedly connected with the second through hole of the connecting rod by adopting the pin, so that a platform for converting electric energy into kinetic energy is built, and the puncture of the puncture outfit is automated.
Further, a longitudinal spring is further arranged between the cutter bar sleeve and the support, the cutter bar is sleeved in the longitudinal spring, the outer diameter of the longitudinal spring is larger than the inner diameter of the support through hole and larger than the inner diameter of the cutter bar sleeve, and the outer diameter of the longitudinal spring is smaller than the inner diameter of the hollow column of the cutter bar sleeve.
Further, the distance of the cutter bar retreating is the distance when the connecting rod moves to the highest point of the wheel disc in the circumferential direction; the distance that the cutter arbor advances is the distance when connecting rod circumference motion reaches the rim plate nadir.
According to the application, the advancing and retreating distance of the cutter bar can be determined by selecting different types of longitudinal springs, so that the setting of the advancing and retreating distance of the cutter bar is more flexible and changeable.
Further, the knife bar sleeve bulge moves to the maximum distance of the knife sheath retreating when the loop switch contacts, and the distance can ensure that the knife blade is out of the sheath.
Further, an electric motor groove is formed in the side wall of the support and is used for accommodating the electric motor, the electric motor groove is of a cylindrical structure with an opening in the side wall and is perpendicular to the side wall of the support, and the inner diameter of the electric motor groove is larger than the outer diameter of the electric motor.
With such a design, the application has at least the following advantages:
(1) According to the application, the electric driving piece is adopted to convert electric energy into kinetic energy to drive the puncture outfit to perform puncture movement, so that the problems of uneven force application and poor puncture effect in the manual puncture process are avoided.
(2) According to the application, the knife bar sleeve bulge is adopted to control the closing and opening of the loop switch, and the opening and closing of the loop switch is controlled without additionally depending on external force of an operator, so that the puncturing action is started directly in the process that the puncture outfit punctures tissues, and the operation convenience is brought to the operator.
(2) The application has simple structure and good effect.
Drawings
The foregoing is merely an overview of the present application, and the present application is further described in detail below with reference to the accompanying drawings and detailed description.
FIG. 1 is a schematic view of a prior art puncture outfit;
FIG. 2 is a schematic view of the overall frame of a sleeveless penetration assembly in accordance with one embodiment of the present application;
FIG. 3 is a schematic view of the overall frame of a sleeved puncture outfit according to one embodiment of the present application;
FIG. 4 is a schematic view of a puncture outfit according to an embodiment of the present application;
FIG. 5 is a schematic view showing the puncture outfit according to an embodiment of the present application;
FIG. 6 is an exploded view of a portion of the structure of a puncture outfit according to an embodiment of the present application;
FIG. 7 is an exploded view of a portion of the structure of a puncture outfit according to an embodiment of the present application;
FIG. 8 is a cross-sectional view of a stent in an embodiment of the present application;
FIG. 9 is a block diagram of an electric drive assembly in accordance with one embodiment of the present application;
wherein,
a is a sleeve, b is a puncture needle, c is a control sheath telescopic component, d is a plastic sheath, e is a stainless steel blade, 1 is a cutter bar, 11 is a cutter bar sleeve, 12 is a cutter bar through hole, 111 is a cutter bar sleeve bulge, 2 is a blade, 21 is a sheath, 3 is a connecting rod, 31 is a connecting rod first through hole, 32 is a connecting rod second through hole, 4 is a bracket, 41 is a bracket through hole, 42 is an electric motor groove, 5 is a loop switch, 6 is an electric motor, 7 is a wheel disc, 71 is a wheel disc small hole, 8 is a longitudinal spring, 9 is a transverse spring, and 10 is a lock catch.
Detailed Description
The preferred embodiments of the present application will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present application only, and are not intended to limit the present application.
Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.
Hereinafter, the end of each member close to the blade is referred to as the front end, and the end remote from the blade is referred to as the rear end.
As shown in fig. 2-9, an embodiment of the present application provides an electric puncture outfit, which comprises a puncture assembly, wherein the puncture assembly comprises a cutter bar 1 and a blade 2, the front end of the cutter bar 1 is connected with the rear end of the blade 2, the rear end of the cutter bar 1 is connected with the front end of a power conversion assembly, and the electric puncture outfit further comprises an electric driving assembly and a power conversion assembly,
an electric drive assembly for generating a driving force;
the power conversion assembly is used for transmitting the driving force to the puncture assembly so as to enable the puncture assembly to reciprocate;
the rear end of the power conversion assembly is electrically connected with the electric driving assembly, and the front end of the power conversion assembly is connected with the rear end of the puncture assembly.
In the embodiment, the electric driving piece is adopted to convert electric energy into kinetic energy to drive the puncture assembly of the puncture outfit to perform puncture movement, so that the problems of uneven force and poor puncture effect in the manual puncture process are avoided, and the medical risk of manual misoperation is reduced; on the other hand, the puncture outfit disclosed by the application can increase the puncture force on tissues which are difficult to puncture, and reduce the uncomfortable feeling of patients.
The cutter bar 1 and the blade 2 may be in an integral structure or a split structure, which is not limited herein.
The cutter bar 1 and the blade 2 are of a split structure in this embodiment. The cutter bar 1 is equipped with cutter bar sleeve 11 outside, and the blade 2 outside is equipped with the sheath 21, and cutter bar sleeve 11 is used for holding cutter bar 1, and sheath 21 is used for holding blade 2, and the front end structure shape of sheath 21 and the adaptation of blade 2 shape, and the front end of sheath 21 is equipped with blade 2 exit slot, the rear end of sheath 21 and the front end fixed connection of cutter bar sleeve 11.
The cutter bar sleeve 11 is of a hollow tubular structure, and the inner channel facilitates the forward and backward reciprocating movement of the cutter bar 1. The sheath 21 has a hollow structure, and the inner passage facilitates the forward and backward reciprocating movement of the blade 2. The cutter bar 1 drives the blade 2 to move forward and backward together.
The connection mode of the sheath 21 and the cutter bar sleeve 11 is not limited, and may be a fastening mode or a screw mode, and will not be described herein.
In the scheme, the cutter bar 1 and the cutter blade 2 are of a split type structure, the cutter bar 1 can be disassembled, and the problem that the whole puncture outfit is discarded after being used to cause a large amount of waste because the traditional puncture outfit is of a completely non-detachable structure and the inner cutter bar is only used once is solved.
In this embodiment, the power conversion assembly comprises a power transmission assembly, a connecting rod 3,
the power transmission assembly is connected with the electric driving assembly and is used for transmitting the driving force of the electric driving assembly to the connecting rod 3;
one end of the connecting rod 3 is connected with the rear end of the cutter bar 1, and the other end of the connecting rod 3 is connected with the power transmission assembly and used for converting the curve reciprocating motion of the power transmission assembly into linear reciprocating motion.
According to the application, through the linkage action of the power transmission assembly and the connecting rod, the kinetic energy of the electric driving assembly is firstly converted into curve reciprocating motion and then converted into the reciprocating motion of the cutter bar which linearly advances and retreats, and the manual operation is changed into automatic execution, so that uneven force application of operators is avoided.
The power transmission assembly is connected with the cutter bar 1 through the connecting rod 3, so that kinetic energy transmitted by the power transmission assembly is transmitted to the cutter bar 1 through the connecting rod 3, and the cutter bar 1 can perform puncturing motion.
The power conversion assembly further comprises a support 4, one side of the side wall of the support 4 is used for fixing the power transmission assembly, a support through hole 41 is formed in the base of the support 4, the inner diameter of the support through hole 41 is larger than the outer diameter of the cutter bar 1, and the cutter bar 1 penetrates through the support through hole 41 to be connected with the connecting rod 3.
The support through hole 41 is located at the center of the base of the support 4, the cutter bar 1 is provided with a cutter bar sleeve 11, the inner diameter of the support through hole 41 is required to be smaller than the outer diameter of the cutter bar sleeve 11, the cutter bar sleeve 11 is prevented from penetrating through the support through hole 41, and only the cutter bar 1 can penetrate through the support through hole 41.
In the embodiment of the application, the rear end of the cutter bar 1 is provided with a cutter bar through hole 12, the front end of the connecting rod 3 is provided with a connecting rod first through hole 31, and the cutter bar through hole 12 is fixedly connected with the connecting rod first through hole 31 through a pin.
Specifically, other fixing modes may be adopted for fixing the cutter bar 1 and the connecting rod 3, which will not be described herein.
In this embodiment, the cutter bar 1 has a cylindrical structure, a smooth protrusion is disposed at the rear end of the cutter bar 1, and a cutter bar through hole 12 is disposed on the protruding end surface.
In this embodiment, the electric driving assembly includes a battery pack, a circuit switch 5 and an electric motor 6, where the battery pack, the circuit switch 5 and the electric motor 6 are electrically connected in sequence to form a closed circuit, and the switch is located on the base of the stand 4.
The base of the bracket 4 is provided with a loop switch groove for fixing the loop switch 5, and the loop switch groove is matched with the loop switch 5.
In order to reasonably layout each component, the application adds the bracket 4, and the loop switch 5 is positioned on the bracket 4, so that the loop switch 5 can be fixed and the loop switch 5 can be conveniently controlled.
The rear end of the cutter bar sleeve 11 is provided with a hollow column, the side wall of the hollow column is provided with a cutter bar sleeve bulge 111 for controlling the closing and opening of the loop switch 5, when the cutter bar sleeve 11 moves towards the rear end direction, the cutter bar sleeve bulge 111 moves to a certain position until contacting with the loop switch 5, the loop switch 5 is triggered to be closed, the electric motor 6 starts to work, when the cutter bar sleeve 11 moves towards the front end direction, the cutter bar sleeve bulge 111 moves to a certain position until contacting with the loop switch 5 is disconnected, the loop switch 5 is triggered to be opened, and the electric motor 6 stops working.
In this embodiment, the knife bar sleeve protrusion 111 is adopted to control the closing and opening of the loop switch 5, so that the opening and closing of the loop switch 5 is not required to be controlled by external force of an operator, the puncturing action is directly started in the process of puncturing the tissue by the puncture outfit, and the operation convenience is brought to the operator.
In this embodiment, the power transmission assembly includes a wheel disc 7, the wheel disc 7 and the electric motor 6 are respectively located at two sides of the side wall of the bracket 4, and the side wall of the bracket 4 is provided with an electric motor through hole. The wheel disc 7 is connected with the electric motor 6, a small hole is formed in the wheel disc 7, a first connecting rod through hole 31 is formed in the connecting rod 3, and the first connecting rod through hole 31 is fixedly connected with the small hole through a pin.
The rear end of the cutter bar 1 is provided with a cutter bar through hole 12, the connecting rod 3 is provided with a connecting rod second through hole 32, and the cutter bar through hole 12 is fixedly connected with the connecting rod second through hole 32 through a pin.
The wheel disc 7 and the cutter bar 1 are both positioned on the same side of the connecting rod 3.
In the present embodiment, the connecting rod first through hole 31 and the connecting rod second through hole 32 of the connecting rod 3 are different in size. Preferably, the aperture of the connecting rod first through hole 31 of the connecting rod 3 is larger than the aperture size of the connecting rod second through hole 32.
According to the application, the small hole of the wheel disc is fixedly connected with the first through hole 31 of the connecting rod by adopting the pin, and the cutter bar through hole 12 is fixedly connected with the second through hole 32 of the connecting rod by adopting the pin, so that a platform for converting electric energy into kinetic energy is built, and the puncture of the puncture outfit is automated.
In this embodiment, a longitudinal spring 8 is further disposed between the cutter bar sleeve 11 and the support 41, the outer diameter of the cutter bar 1 is smaller than the inner diameter of the longitudinal spring 8, the cutter bar 1 is sleeved in the longitudinal spring 8, the outer diameter of the longitudinal spring 8 is larger than the inner diameter of the support through hole, a hollow protrusion is disposed at the support through hole, the outer diameter of the longitudinal spring 8 is smaller than the hollow protrusion, and when the longitudinal spring 8 moves along with the cutter bar 1 moving towards the rear end, part of the longitudinal spring 8 enters the hollow protrusion to prevent the longitudinal spring 8 from continuing to move towards the rear end, so as to play a role in positioning the longitudinal spring 8.
The depth of the hollow column at the rear end of the cutter bar sleeve 11 is smaller than the height of the longitudinal spring 8, and is used for accommodating part of the longitudinal spring 8, and positioning the longitudinal spring 8.
In this embodiment, the outer diameter of the longitudinal spring 8 is larger than the inner diameter of the cutter bar sleeve 11, and the outer diameter of the longitudinal spring 8 is smaller than the outer diameter of the hollow column at the rear end of the cutter bar sleeve 11.
In this embodiment, the inner diameter of the bracket through hole may be the same as or different from the inner diameter of the hollow column at the rear end of the cutter bar sleeve 11, and is not limited herein.
In this embodiment, the electric puncture outfit further includes a transverse spring 9 and a latch 10, a latch through hole is provided in the center of the latch 10, a baffle is provided on the side wall of the bracket 4, and the transverse spring 9 is located between the baffle and the latch 10 for abutting against the retraction of the transverse spring 9. When the axial centers of the lock catch holes and the bracket through holes are coincident, the transverse spring 9 is in a compressed state, the cutter bar 1 can perform puncture movement, and when the axial centers of the lock catch holes and the bracket through holes are not coincident, the transverse spring 9 is in an expanded state, and the cutter bar 1 stops performing puncture movement.
The inner diameter of the hollow protrusion of the locking through hole and the inner diameter of the bracket through hole can be consistent or inconsistent, and the locking through hole is not limited herein.
In the embodiment, the distance of the cutter bar 1 moving towards the rear end is the distance when the connecting rod 3 moves to the highest point of the wheel disc 7 in the circumferential direction; the forward distance of the cutter bar 1 is the distance when the connecting rod 3 moves to the lowest point of the wheel disc 7 in the circumferential direction.
In this embodiment, the knife bar sleeve protrusion 111 moves to the maximum distance that the knife sheath 21 retreats when contacting the circuit switch 5, and this distance can ensure the sheath-out of the knife blade 2.
In the present embodiment, the telescopic stroke position of the sheath 21 is forward of the reciprocating stroke position of the blade 2, and the telescopic stroke position of the sheath 21 overlaps the reciprocating stroke position of the blade 2 by 2 mm to 6 mm. Preferably 3 mm to 5 mm.
In this embodiment, the wheel disc 7 and the electric motor 6 are respectively located at two sides of the side wall of the bracket 41, the side wall of the bracket 4 is provided with an electric motor through hole, the wheel disc 7 is connected with the electric motor 6, and the wheel disc 7 and the cutter bar 1 are located at the same side of the connecting rod 3.
In this embodiment, an electric motor groove 42 is provided on the base of the bracket 4 for accommodating the electric motor 6, the electric motor groove 42 is a cylindrical structure with an opening on the side wall, and the inner diameter of the electric motor groove 42 is larger than the outer diameter of the electric motor 6.
In the embodiment of the application, the working process of the electric puncture outfit is as follows:
initial state:
the electric motor 6 is installed in the electric motor groove 42 of the bracket 4 and connected with the wheel 7, the wheel small hole 71 of the wheel 7 is connected with the first through hole 31 of the connecting rod through a pin, and the second through hole 32 of the connecting rod is connected with the through hole 12 of the cutter bar at the rear end of the cutter bar 1 through a pin. The knife bar 1 passes through a longitudinal spring 8 before being connected to the connecting rod 3.
Working state:
the lock catch 10 is manually pressed, the transverse spring 9 is compressed, the elastic hook-shaped structure at the side part of the inner hole of the lock catch 10 hooks the small bulge in the lower shell, and the lock catch 10 keeps the position at the moment. Under the effect of the baffle of the bracket 4, the transverse spring 9 cannot pop out, the through hole of the lock catch 10, the through hole 41 of the bracket and the through hole of the cutter bar sleeve 11 are coaxial circle centers, the cutter bar sleeve 11 and the cutter bar 21 move towards the rear end direction together with the resistance of the abdominal wall tissue during puncturing, the outer diameter of the longitudinal spring 8 is larger than the inner diameter of the through hole 41 of the bracket, the longitudinal spring 8 is prevented from moving, the longitudinal spring 8 is compressed, the cutter bar sleeve bulge 111 on the side wall of the rear end of the cutter bar sleeve 11 contacts the loop switch 5 in the process of moving along with the cutter bar sleeve 11 towards the rear end, the loop switch 5 is closed, so that the electric motor 6 is started, and the cutter bar 1 drives the blade 2 to start back and forth reciprocating motion. Meanwhile, the rear end face of the cutter bar sleeve 11 props against the elastic hook structure at the inner side of the lock catch 10 in the backward moving process and enables the lock catch 10 to trip, the lock catch 10 is subjected to partial reset sliding under the action of the restoring elastic force of the transverse spring 9, and the side face of the through hole is propped against the outer side wall of the rear end of the cutter bar sleeve 11 and cannot be further reset sliding.
When the abdominal wall tissue is pierced, the knife sheath 21 is not subjected to tissue resistance any more, the knife bar sleeve 11 moves towards the front end under the action of the restoring elastic force of the longitudinal spring 8, and the knife bar sleeve bulge 111 on the outer side wall of the rear end of the knife bar sleeve 11 is far away from the loop switch 5 in the process of moving towards the front end along with the knife bar sleeve 11, so that the loop switch 5 is broken, the electric motor 6 stops working, and the knife bar 1 drives the knife blade 2 to stop reciprocating back and forth. Meanwhile, the outer side wall of the rear end of the cutter bar sleeve 11 does not abut against the side surface of the through hole in the lock catch 10 in the forward moving process, the lock catch 10 further slides under the elastic force recovery action of the transverse spring 9 until the lock catch is completely reset, at the moment, the through hole of the lock catch 10, the bracket through hole 41 and the through hole of the cutter bar sleeve 11 are not coaxial with the circle center, and the end surface of the through hole abuts against the rear end surface of the cutter bar sleeve 11, so that the cutter bar sleeve cannot move backwards again.
With such a design, the application has at least the following advantages:
(1) According to the application, the electric driving piece is adopted to convert electric energy into kinetic energy to drive the puncture outfit to perform puncture movement, so that the problems of uneven force application and poor puncture effect in the manual puncture process are avoided.
(2) According to the application, the knife bar sleeve bulge is adopted to control the closing and opening of the loop switch, and the opening and closing of the loop switch is controlled without additionally depending on external force of an operator, so that the puncturing action is started directly in the process that the puncture outfit punctures tissues, and the operation convenience is brought to the operator.
(3) The application has simple structure and good effect.
The above description is only of the preferred embodiments of the present application, and is not intended to limit the application in any way, and some simple modifications, equivalent variations or modifications can be made by those skilled in the art using the teachings disclosed herein, which fall within the scope of the present application.
Claims (6)
1. The utility model provides an electronic puncture outfit, includes puncture subassembly, puncture subassembly includes cutter arbor and blade, the front end of cutter arbor with the rear end of blade links to each other, its characterized in that still includes: an electric driving component, a power conversion component,
the electric driving assembly is used for generating driving force;
the power conversion assembly is used for transmitting the driving force to the puncture assembly so as to enable the puncture assembly to perform forward and backward reciprocating motion;
the rear end of the cutter bar is connected with the front end of the power conversion assembly, and the rear end of the power conversion assembly is electrically connected with the electric driving assembly;
the power conversion assembly comprises a power transmission assembly, a connecting rod,
the power transmission assembly is connected with the electric driving assembly and is used for transmitting the driving force of the electric driving assembly to the connecting rod;
one end of the connecting rod is connected with the rear end of the cutter bar, and the other end of the connecting rod is connected with the power transmission assembly and used for converting the curve reciprocating motion of the power transmission assembly into linear reciprocating motion;
the power conversion assembly comprises a bracket, a bracket through hole is formed in a base of the bracket, the inner diameter of the bracket through hole is larger than the outer diameter of the cutter bar, and the cutter bar penetrates through the bracket through hole to be connected with the connecting rod;
the electric driving assembly comprises a battery pack, a loop switch and an electric motor, wherein the battery pack, the loop switch and the electric motor are sequentially and electrically connected to form a closed loop, and the loop switch is positioned on the bracket base;
the bracket base is provided with a loop switch groove for accommodating the loop switch, the loop switch is used for controlling the electric motor to work,
the cutter bar is provided with a cutter bar sleeve, the cutter bar is sleeved in the cutter bar sleeve, the side wall of the rear end of the cutter bar sleeve is fixed with a hollow column, the inner diameter of the bracket through hole is smaller than the outer diameter of the cutter bar sleeve,
the side wall of the hollow column of the cutter bar sleeve is provided with a cutter bar sleeve bulge which is used for controlling the closing and opening of the loop switch, and when the cutter bar sleeve moves towards the rear end, the cutter bar sleeve bulge is contacted with the loop switch, so that the electric motor starts to work; when the cutter bar sleeve moves towards the front end, the cutter bar sleeve bulge is disconnected with the loop switch, so that the electric motor stops working.
2. The electric puncture outfit according to claim 1, wherein the power transmission assembly comprises a wheel disc, the wheel disc is connected with the electric motor, a wheel disc small hole is formed in the wheel disc, a connecting rod first through hole is formed in the rear end of the connecting rod, and the connecting rod first through hole is fixedly connected with the wheel disc small hole through a pin;
the rear end of cutter arbor is equipped with a cutter arbor through-hole, the front end of connecting rod is equipped with connecting rod second through-hole, the cutter arbor through-hole with connecting rod second through-hole passes through nail round pin fixed connection.
3. The electric puncture outfit according to claim 2, wherein a longitudinal spring is further arranged between the cutter bar sleeve and the bracket, the cutter bar is sleeved in the longitudinal spring, the outer diameter of the longitudinal spring is larger than the inner diameter of the bracket through hole, the outer diameter of the longitudinal spring is larger than the inner diameter of the cutter bar sleeve, and the outer diameter of the longitudinal spring is smaller than the inner diameter of the hollow column of the cutter bar sleeve.
4. The electric puncture outfit according to claim 3, wherein the distance of the tool bar retreating is the distance when the connecting rod moves to the highest point of the wheel disc in the circumferential direction; the distance that the cutter arbor advances is the distance when connecting rod circumference motion reaches the rim plate nadir.
5. The electric puncture outfit according to claim 4, wherein a sheath is arranged outside the blade, the knife bar sleeve bulge moves to a maximum distance for the sheath to retreat when the loop switch is contacted, and the distance can ensure the blade to come out of the sheath.
6. The electric puncture outfit according to claim 5, wherein an electric motor groove is provided on a side wall of the holder for accommodating the electric motor, the electric motor groove has a cylindrical structure with an opened side wall and is perpendicular to the side wall of the holder, and an inner diameter of the electric motor groove is larger than an outer diameter of the electric motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111170426.8A CN113813027B (en) | 2020-12-02 | 2020-12-02 | Electric puncture outfit |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011402104.7A CN113520538A (en) | 2020-12-02 | 2020-12-02 | Electric puncture outfit |
| CN202111170426.8A CN113813027B (en) | 2020-12-02 | 2020-12-02 | Electric puncture outfit |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011402104.7A Division CN113520538A (en) | 2020-12-02 | 2020-12-02 | Electric puncture outfit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113813027A CN113813027A (en) | 2021-12-21 |
| CN113813027B true CN113813027B (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111170426.8A Active CN113813027B (en) | 2020-12-02 | 2020-12-02 | Electric puncture outfit |
| CN202011402104.7A Pending CN113520538A (en) | 2020-12-02 | 2020-12-02 | Electric puncture outfit |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011402104.7A Pending CN113520538A (en) | 2020-12-02 | 2020-12-02 | Electric puncture outfit |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN113813027B (en) |
| WO (1) | WO2022116872A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113813027B (en) * | 2020-12-02 | 2023-11-17 | 北京派尔特医疗科技股份有限公司 | Electric puncture outfit |
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| US6197041B1 (en) * | 1991-06-26 | 2001-03-06 | United States Surgical Corporation | Trocar |
| CN102038509A (en) * | 2009-10-15 | 2011-05-04 | 霍夫曼-拉罗奇有限公司 | Piercing system for removal of a body fluid |
| KR20130118141A (en) * | 2012-04-19 | 2013-10-29 | 주식회사 세종메디칼 | Blade oscillatory type trocar |
| WO2019195221A1 (en) * | 2018-04-06 | 2019-10-10 | Tendonova Corporation | Improved devices for tissue treatment and methods of use thereof |
| CN110575587A (en) * | 2019-09-29 | 2019-12-17 | 江苏德尔福医疗器械有限公司 | automatic injection device |
| CN113520538A (en) * | 2020-12-02 | 2021-10-22 | 北京派尔特医疗科技股份有限公司 | Electric puncture outfit |
| CN215458450U (en) * | 2020-12-02 | 2022-01-11 | 北京派尔特医疗科技股份有限公司 | Electric puncture outfit |
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|---|---|---|---|---|
| GB0215537D0 (en) * | 2002-07-05 | 2002-08-14 | Surgical Innovations Ltd | Trocar shield |
| EP2468342A1 (en) * | 2010-12-21 | 2012-06-27 | Sanofi-Aventis Deutschland GmbH | Front end for an auto-injector |
| US8840588B2 (en) * | 2011-02-11 | 2014-09-23 | Mectra Labs, Inc. | Insufflation needle with dual indicator and method of use |
| US10463814B2 (en) * | 2015-09-10 | 2019-11-05 | Kvi Llc | Insufflation needle |
| CN211584681U (en) * | 2019-09-29 | 2020-09-29 | 江苏德尔福医疗器械有限公司 | Injection device with automatic needle entering and exiting function |
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2020
- 2020-12-02 CN CN202111170426.8A patent/CN113813027B/en active Active
- 2020-12-02 CN CN202011402104.7A patent/CN113520538A/en active Pending
-
2021
- 2021-11-23 WO PCT/CN2021/132595 patent/WO2022116872A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6197041B1 (en) * | 1991-06-26 | 2001-03-06 | United States Surgical Corporation | Trocar |
| CN102038509A (en) * | 2009-10-15 | 2011-05-04 | 霍夫曼-拉罗奇有限公司 | Piercing system for removal of a body fluid |
| KR20130118141A (en) * | 2012-04-19 | 2013-10-29 | 주식회사 세종메디칼 | Blade oscillatory type trocar |
| WO2019195221A1 (en) * | 2018-04-06 | 2019-10-10 | Tendonova Corporation | Improved devices for tissue treatment and methods of use thereof |
| CN110575587A (en) * | 2019-09-29 | 2019-12-17 | 江苏德尔福医疗器械有限公司 | automatic injection device |
| CN113520538A (en) * | 2020-12-02 | 2021-10-22 | 北京派尔特医疗科技股份有限公司 | Electric puncture outfit |
| CN215458450U (en) * | 2020-12-02 | 2022-01-11 | 北京派尔特医疗科技股份有限公司 | Electric puncture outfit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113813027A (en) | 2021-12-21 |
| CN113520538A (en) | 2021-10-22 |
| WO2022116872A1 (en) | 2022-06-09 |
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