CN113100912B - Electric knife pen with suction function - Google Patents
Electric knife pen with suction function Download PDFInfo
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- CN113100912B CN113100912B CN202110240653.7A CN202110240653A CN113100912B CN 113100912 B CN113100912 B CN 113100912B CN 202110240653 A CN202110240653 A CN 202110240653A CN 113100912 B CN113100912 B CN 113100912B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00601—Cutting
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
- A61B2218/002—Irrigation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
- A61B2218/007—Aspiration
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
- A61B2218/007—Aspiration
- A61B2218/008—Aspiration for smoke evacuation
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Abstract
The invention relates to the technical field of medical instruments, in particular to an electric knife pen with a suction function. The tissue cutting device comprises a cutter head, a suction tube and a mounting assembly, wherein the cutter head is arranged on the tube wall of the suction tube and is suitable for cutting tissues; the mounting assembly comprises a shell and an insulating sleeve, the insulating sleeve is sleeved on the suction tube, is arranged between the shell and the cutter head, and is suitable for coating the suction tube; the electric knife pen also comprises an electric control unit and an anti-blocking assembly, wherein the electric control unit is arranged on the shell, is in contact with the suction tube and is suitable for controlling the current on the suction tube; the anti-blocking assembly comprises a conduction hose and an extrusion unit, the conduction hose is arranged at one end, opposite to the cutter head, of the suction tube and communicated with the suction tube and the corrugated tube, and the extrusion unit is suitable for extruding the conduction hose under the action of external force. Through the cooperation of switching on hose and extrusion unit and using, effectively solved among the prior art electrotome pen after inhaling bold tissue or clot etc. attached to and attract the pipe inner wall, lead to attracting the pipe and take place the problem of jam.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an electric knife pen with a suction function.
Background
A high-frequency electric knife (high-frequency surgical instrument) is an electric surgical instrument for replacing a mechanical surgical knife to cut tissues. The tissue is heated when high-frequency high-voltage current generated by the tip of the effective electrode contacts with the body, so that the tissue is separated and coagulated, and the aims of cutting and hemostasis are fulfilled.
The operation with the electric knife pen is usually accompanied by cauterization and carbonization of the patient's tissue and gasification of the patient's body fluids and blood. These high temperature processes generate significant amounts of surgical smoke.
On one hand, surgical smoke can reduce the visibility of a surgeon on patient tissue, and affect the accuracy of surgical operation and the time of the operation; surgical smoke, on the other hand, has been shown to contain over eighty pathogenic, carcinogenic substances and a large number of patients' focal pathogens.
In order to solve the above problems, most of the existing electric knives have a suction function, and smoke generated immediately before is sucked when the electric knives cut tissues. However, when the smoke is inhaled, blood or blood-water mixture, including large tissue or blood clots, is easy to be inhaled, which causes the suction tube of the electric knife pen to be blocked.
Disclosure of Invention
The invention provides an electric knife pen with a suction function, which aims to solve the problem that a suction tube of the electric knife pen is blocked because large tissues or blood clots are easy to be sucked in the suction process of the electric knife pen in the prior art.
The technical scheme of the invention is as follows:
an electric knife pen with a suction function comprises a knife head, a suction tube and a mounting assembly, wherein the knife head is arranged on the tube wall of the suction tube and is suitable for cutting tissues; the mounting assembly comprises a shell and an insulating sleeve, the insulating sleeve is sleeved on the suction tube, is arranged between the shell and the cutter head, and is suitable for coating the suction tube; the electric knife pen also comprises an electric control unit and an anti-blocking assembly, wherein the electric control unit is arranged on the shell, is in contact with the suction tube and is suitable for controlling the current on the suction tube; the anti-blocking assembly comprises a conduction hose and an extrusion unit, the conduction hose is arranged at one end, opposite to the cutter head, of the suction tube and communicated with the suction tube and the corrugated tube, and the extrusion unit is suitable for extruding the conduction hose under the action of external force.
Preferably, the anti-clogging assembly further comprises a squeezing plate disposed opposite to the squeezing unit, adapted to support the communication hose; the shell comprises a first shell and a second shell connected with the first shell, one of the extrusion plate and the extrusion unit is arranged on the first shell, and the other one of the extrusion plate and the extrusion unit is arranged on the second shell.
Preferably, the electric knife pen with the suction function further comprises a mounting structure and a spring, the mounting structure is arranged on the shell, a limiting cavity is arranged in the mounting structure, and the extrusion unit penetrates through the limiting cavity to be connected with the conduction hose; the spring is arranged in the limiting cavity, is connected with the guide piece on the extrusion unit and is suitable for being compressed under the action of the guide piece.
Preferably, the electric knife pen with the attraction function further comprises two groups of locking assemblies, wherein the two groups of locking assemblies comprise: one of the first clamping plate and the second clamping plate is arranged on the first shell, and the other clamping plate is arranged on the second shell; one end of the conduction hose is sleeved on the suction tube and is clamped by the first clamping plate and the second clamping plate of one group of locking assemblies.
Preferably, this electric knife pen with attract function still includes the connecting pipe, and it locates in the casing, and is located to switch on between hose and the bellows for the intercommunication switches on hose and bellows, and the other end cover that switches on the hose is on the connecting pipe, and is held by the first grip block and the second grip block of another group locking Assembly.
Preferably, the length of the conduction hose is greater than the axial distance between the connecting tube and the suction tube; the pressing plate is made of an elastic material, which bends the middle portion of the lead-through hose toward the pressing unit.
Preferably, the extrusion unit comprises an extrusion piece and a closing piece, the guide piece is arranged on the outer wall of the extrusion piece, the extrusion piece is connected with the conduction hose, the extrusion piece is provided with a through hole, and the through hole is communicated with the conduction hose; the closing piece is arranged at one end of the extrusion piece far away from the conducting hose and is made of elastic materials; one end of the sealing part, which is far away from the extrusion part, is provided with a plurality of petal-shaped parts, the adjacent petal-shaped parts are jointed to seal the through hole, and the petal-shaped parts are suitable for expanding when the side wall of the sealing part is extruded by external force and are connected into the infusion tube when the petal-shaped parts are in an expanded state.
Preferably, the electric knife pen with the attraction function further comprises a plurality of deformation cavities which are arranged inside the closing piece and/or between the closing piece and the pressing piece.
Preferably, the closure element encloses the extruded part, the side walls of the extruded part being adhesively connected to the closure element, the ends of the extruded part being plugged into the petals.
Preferably, a one-way valve is further arranged in the through hole, the one-way valve is suitable for preventing the substances in the communicating hose from flowing out of the through hole and allowing the external substances to flow into the communicating hose through the through hole; the one-way valve comprises a first valve body and a second valve body, the fixing parts of the first valve body and the second valve body are arranged on the hole wall of the through hole, the movable parts of the first valve body and the second valve body are arranged in an overlapped mode, and the movable parts are arranged towards the conduction hose.
The technical scheme of the invention has the following advantages:
1. the electric knife pen with the suction function comprises a knife head, a suction tube and a mounting assembly, wherein the knife head is arranged on the tube wall of the suction tube and is suitable for cutting tissues; the mounting assembly comprises a shell and an insulating sleeve, the insulating sleeve is sleeved on the suction tube, is arranged between the shell and the cutter head, and is suitable for coating the suction tube; the electric knife pen also comprises an electric control unit and an anti-blocking assembly, wherein the electric control unit is arranged on the shell, is in contact with the suction tube and is suitable for controlling the current on the suction tube; the anti-blocking assembly comprises a conduction hose and an extrusion unit, wherein the conduction hose is arranged at one end, opposite to the cutter head, of the suction tube and is communicated with the suction tube and the corrugated tube.
When the electric control unit is started, high-frequency high-voltage current passes through the cutter head to cut and separate tissues, the suction device arranged behind the corrugated pipe is started, and smoke generated at the cutter head sequentially passes through the suction pipe, the conduction hose and the corrugated pipe and then enters the suction device. When the suction tube is blocked to cause unsmooth suction, external force acts on the extrusion unit, and the extrusion unit applies pressure to the conduction hose under the action of the external force. Through the cooperation that switches on hose and extrusion unit and use for blood, the bloody water pressure at extrusion unit both ends are different, form the siphon effect, make and block up and inhale behind the broken back of the hindrance in attracting the pipe, have effectively solved the electrotome pen among the prior art after inhaling bold tissue or blood clot etc. and adhere to on attracting the pipe inner wall, lead to attracting the pipe and take place the problem of jam. During operation, external force can be manually applied to the extrusion unit, and the operation is simple and convenient.
2. The anti-blocking component of the electric knife pen with the attraction function further comprises an extrusion plate which is arranged opposite to the extrusion unit and is suitable for supporting and communicating the hose; the shell comprises a first shell and a second shell connected with the first shell, one of the extrusion plate and the extrusion unit is arranged on the first shell, and the other one of the extrusion plate and the extrusion unit is arranged on the second shell. The stripper plate plays the supporting role to switching on the hose, and stripper plate and extrusion unit all exert pressure to switching on the hose promptly, because stripper plate and extrusion unit correspond the setting, switch on the hose and take place to warp in same position.
3. The electric knife pen with the attraction function further comprises two groups of locking assemblies, wherein each group of locking assemblies comprises a first clamping plate and a second clamping plate, one of the first clamping plate and the second clamping plate is arranged on the first shell, and the other of the first clamping plate and the second clamping plate is arranged on the second shell; one end of the conduction hose is sleeved on the suction tube and is clamped by the first clamping plate and the second clamping plate of one group of locking assemblies. After the first shell is connected with the second shell, the first clamping plate and the second clamping plate are simple in structure, stable connection between the conduction hose and the suction tube is effectively achieved under the action of the first clamping plate and the second clamping plate, and the situation that the conduction hose is separated from the suction tube when the extrusion unit applies pressure to the conduction hose under the action of external force is prevented.
4. According to the electric knife pen with the suction function, the length of the conduction hose is larger than the axial distance between the connecting pipe and the suction pipe; the pressing plate is made of an elastic material, and supports the conduction hose after the first housing is connected with the second housing, and causes the middle of the conduction hose to be bent toward the pressing unit. When the extrusion unit extrudees under the exogenic action and switches on the hose, the stripper plate compresses under the effect that switches on the hose for switch on the hose and produce the length surplus along attracting the pipe axial, this length surplus just in time compensates and switches on the hose because of extrusion unit, the produced deformation of stripper plate extrusion switch on hose, prevent that the extrusion unit is right under the exogenic action switch on the hose when exerting pressure, switch on the condition that the hose took place to break away from with attracting the pipe.
5. The invention relates to an electric knife pen with a suction function.A squeezing unit comprises a squeezing piece and a closing piece, wherein a guide piece is arranged on the outer wall of the squeezing piece, the squeezing piece is connected with a conduction hose, and the squeezing piece is provided with a through hole which is communicated with the conduction hose; the closing piece is arranged at one end of the extrusion piece far away from the conducting hose and is made of elastic materials; one end of the closing piece, which is far away from the extrusion piece, is provided with a plurality of petal-shaped parts, the adjacent petal-shaped parts are attached to close the through hole, and the petal-shaped parts are suitable for expanding when the side wall of the closing piece is extruded by external force.
When the device is used, under the action of the closing piece, smoke passing through the suction tube cannot flow out of the through hole, and after the suction tube is blocked, the squeezing unit squeezes the conducting hose under the action of external force, specifically, the flap-shaped part at the end part of the closing piece is manually pressed at first, and the squeezing piece is pushed to squeeze the conducting hose to form a siphon effect, so that a barrier blocked in the suction tube is broken and then is sucked;
for the obstacles which cannot be sucked after the squeezing unit squeezes the conducting hose, the petal-shaped parts expand when the side wall of the closing part is squeezed under the action of external force because the plate-shaped parts are made of elastic materials. Then the transfusion tube is connected when the flap part is in an expansion state, the water flow in the transfusion tube flows into the suction tube through the through hole on the extrusion piece, and the obstruction in the suction tube is removed.
6. The electric knife pen with the suction function further comprises a plurality of deformation cavities which are arranged inside the sealing piece and/or between the sealing piece and the pressing piece. Through setting up the deformation chamber for the closure member has the bigger deformation volume, can extrude the closure member lateral wall with less effort and just can make the expansion of lamella portion for not setting up the closure member in deformation chamber, that is to say, through setting up the deformation chamber, make the expansion of lamella portion more easily.
7. According to the electric knife pen with the suction function, the side wall of the extrusion piece is connected with the closing piece in an adhesive mode, and the end portion of the extrusion piece is inserted into the petal-shaped portion. Through the form that adopts extruded piece tip and lamella portion grafting, when the extrusion closure lateral wall, lamella portion can be connected with extruded piece tip is firm, and the connected mode simple structure of this kind of grafting.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a perspective view of an electric knife pen with a suction function according to the present invention;
FIG. 2 is a schematic structural diagram of a top view of FIG. 1 after the first housing and the insulating sleeve are removed;
FIG. 3 is a schematic structural view in cross-section at A-A of the structure shown in FIG. 2;
FIG. 4 is an enlarged view of the portion P of FIG. 3;
FIG. 5 is one of the schematic structural views of the pressing unit shown in FIG. 4;
fig. 6 is a second schematic structural view of the pressing unit shown in fig. 4.
Description of reference numerals:
1-a cutter head; 2-a suction tube; 3-a shell; 4-a first housing; 5-a second housing; 6-an insulating sleeve; 7-an electronic control unit; 8-conducting the hose; 9-a bellows; 10-extruding a plate; 11-a limiting cavity; 12-a spring; 13-a second clamping plate; 14-a connecting tube; 15-extrusion; 16-a via hole; 17-a closure; 18-petals; 19-a deformation chamber; 20-a one-way valve; 21-a first petal body; 22-a second petal; 23-a control switch; 24-a button; 25-a wire; 26-guide.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The electric knife pen with the suction function of the embodiment, as shown in fig. 1-6, comprises a knife head 1, a suction tube 2 and a mounting assembly, wherein the knife head 1 is arranged on the tube wall of the suction tube 2, and the knife head 1 is suitable for cutting tissue; the mounting assembly comprises a shell 3 and an insulating sleeve 6, wherein the insulating sleeve 6 is sleeved on the suction tube 2, arranged between the shell 3 and the cutter head 1 and suitable for coating the suction tube 2; the electric knife pen also comprises an electric control unit 7 and an anti-blocking component, wherein the electric control unit 7 is arranged on the shell 3, is in contact with the suction tube 2 and is suitable for controlling the current on the suction tube 2; the anti-blocking assembly comprises a conducting hose 8 and an extrusion unit, the conducting hose 8 is arranged at one end, opposite to the cutter head 1, of the suction tube 2 and communicated with the suction tube 2 and the corrugated tube 9, and the extrusion unit is suitable for extruding the conducting hose 8 under the action of external force.
When the electric suction device is used, the electric control unit 7 is started, high-frequency and high-voltage current passes through the cutter head 1 to cut and separate tissues, the suction device arranged behind the corrugated pipe 9 is started, and smoke generated at the cutter head 1 sequentially passes through the suction pipe 2, the conducting hose 8 and the corrugated pipe 9 and then enters the suction device. When the suction tube 2 is blocked to cause unsmooth suction, external force acts on the extrusion unit, and the extrusion unit applies pressure to the conduction hose 8 under the action of the external force. Through the cooperation of conducting hose 8 and extrusion unit, form the siphon effect for block up and inhale behind the broken back of hindrance in attracting pipe 2, effectively solved among the prior art electrotome pen after inhaling bold tissue or blood clot etc. and adhere to on attracting pipe 2 inner wall, lead to attracting pipe 2 to take place the problem of jam. During operation, external force can be manually applied to the extrusion unit, and the operation is simple and convenient.
Specifically, the electronic control unit is connected with an external power supply through a wire 25, and a button 24 is arranged on the electronic control unit 7 so as to facilitate manual control of the electronic control unit.
The anti-blocking assembly further comprises a squeezing plate 10 arranged corresponding to the squeezing unit, the shell 3 comprises a first shell 4 and a second shell 5 connected with the first shell 4, one of the squeezing plate 10 and the squeezing unit is arranged on the first shell 4, and the other squeezing plate is arranged on the second shell 5. After being connected first shell 4 and second shell 5, the extrusion unit is right under the exogenic action when switching on hose 8 and exert pressure, stripper plate 10 plays the supporting role to switching on hose 8, and stripper plate 10 and extrusion unit all exert pressure to switching on hose 8 promptly, because stripper plate 10 corresponds the setting with the extrusion unit, switches on hose 8 and takes place to warp in same position.
Furthermore, the electric knife pen with the suction function further comprises a mounting structure and a spring 12, wherein the mounting structure is arranged on the shell 3, a limiting cavity 11 is arranged in the mounting structure, and the extrusion unit penetrates through the limiting cavity 11 to be connected with the conduction hose 8; spring 12 is located spacing intracavity 11, and is connected with the guide 26 on the extrusion unit, and when using, the extrusion unit moves towards switching on the hose 8 under the exogenic action to drive guide 26 and move and compress spring 12 towards switching on the hose 8, under the circumstances that does not receive exogenic action as the extrusion unit, guide 26 resets under the effect of spring 12. The mounting structure is further provided with a sliding groove slidably connected with the guide 26, and when mounting, the guide 26 is connected with the extrusion unit by passing through the sliding groove.
Further, this electric knife pen with attract function still includes locking Assembly, and locking Assembly is equipped with two sets ofly, and it includes: one of the first clamping plate and the second clamping plate 13 is arranged on the first shell 4, and the other one of the first clamping plate and the second clamping plate 13 is arranged on the second shell 5; one end of the conduction hose 8 is sleeved on the suction tube 2 and is clamped by the first clamping plate and the second clamping plate 13 of one group of locking assemblies.
Further, this electric knife pen with attract function still includes connecting pipe 14, and it locates in casing 3, and is located and switches on between hose 8 and the bellows 9 for the intercommunication switches on hose 8 and bellows 9, and the other end that switches on the hose overlaps on connecting pipe 14, and is held by the first grip block and the second grip block 13 of another group locking component. Further, a control switch 23 is provided between the connection pipe 14 and the bellows 9, and the suction force is controlled by the control switch 23.
First grip block and second grip block 13 simple structure under first grip block and second grip block 13's effect, has realized effectively switching on the hose 8 and has attracted the firm connection between pipe 2, the connecting pipe 14, prevent that the extrusion unit is right under the exogenic action when switching on hose 8 and exerting pressure, switch on the condition that hose 8 and attraction pipe 2, connecting pipe 14 take place to break away from.
Further, the length of the conduction hose 8 is greater than the axial distance between the connection tube 14 and the suction tube 2; the pressing plate 10 is made of an elastic material, and when the first casing 4 is coupled with the second casing 5, the pressing plate 10 supports the lead-through hose 8 and bends the middle portion of the lead-through hose 8 toward the pressing unit. When the extrusion unit extrudees under the exogenic action and switches on hose 8, stripper plate 10 compresses under the effect that switches on the hose for switch on hose 8 and produce the length allowance along attracting 2 axial of pipe, this length allowance just in time compensates and switches on 8 middle parts of hose and switch on the produced deformation of hose 8 because of extrusion unit, stripper plate 10 extrusion, prevent that the extrusion unit is right under the exogenic action when switching on hose 8 applied pressure, switch on the condition that hose 8 and attraction pipe 2 take place to break away from.
Wherein, the extrusion unit comprises an extrusion piece 15 and a closing piece 17, a guide piece 26 is arranged on the outer wall of the extrusion piece 15, the extrusion piece 15 is connected with the conducting hose 8, a through hole 16 is arranged on the extrusion piece 15, and the through hole 16 is communicated with the conducting hose 8; a closing member 17 is provided at an end of the pressing member 15 remote from the lead-through hose 8, and is made of an elastic material; one end of the closing part 17 far away from the extrusion part 15 is provided with a plurality of petal-shaped parts 18, the adjacent petal-shaped parts 18 are jointed to close the through hole 16, and the petal-shaped parts 18 are suitable for expanding when external force extrudes the side wall of the closing part 17 and are used for connecting the infusion tube when the petal-shaped parts 18 are in an expanded state.
When the device is used, under the action of the closing piece 17, smoke passing through the suction tube 2 cannot flow out of the through hole 16, and after the suction tube 2 is blocked, the squeezing unit squeezes the communicating hose 8 under the action of external force, specifically, the flap-shaped part 18 at the end part of the closing piece 17 is manually pressed at first, and the squeezing piece 15 is pushed to squeeze the communicating hose 8, so that a siphon effect is formed, and a barrier blocked in the suction tube 2 is broken and then sucked.
In the case of an obstacle which cannot be sucked even after the pressing unit presses the lead-through hose 8, the flap portion 18 expands when the side wall of the closure member 17 is pressed by an external force because the plate portion is made of an elastic material. Then the transfusion tube is connected when the flap part 18 is in an expansion state, the water flow in the transfusion tube flows into the suction tube 2 through the through hole 16 on the extrusion piece 15, and the obstruction in the suction tube 2 is removed.
Further, the electric pencil with suction function further comprises a plurality of deformation chambers 19 which are arranged inside the enclosing member 17. By providing the deformation chamber 19 so that the closure member 17 has a greater amount of deformation, the petals 18 can be expanded by squeezing the closure member 17 side walls with less force than if the closure member 17 were not provided with the deformation chamber 19, i.e., by providing the deformation chamber 19 so that the petals 18 are more easily expanded.
As one of the embodiments of the deformation chamber 19, the deformation chamber 19 is also provided between the closing member 17 and the pressing member 15;
as a second embodiment of the deformation chamber 19, a deformation chamber 19 is provided both inside the closing member 17 and between the closing member 17 and the pressure member 15.
In particular, the closing member 17 covers the extruded member 15, the side walls of the extruded member 15 being adhesively connected to said closing member 17, the ends of which are plugged into the petals 18. By adopting the form that the end part of the extrusion piece 15 is inserted into the petal-shaped part 18, the petal-shaped part 18 can be stably connected with the end part of the extrusion piece 15 when the side wall of the closing part 17 is extruded, and the inserted connection mode is simple in structure.
Further, a check valve 20 is disposed in the through hole 16, and the check valve 20 is adapted to prevent the substance in the lead hose 8 from flowing out of the through hole 16 and allow the external substance to flow into the lead hose 8 through the through hole 16. Specifically, check valve 20 includes first lamella body 21 and second lamella body 22, and the fixed part of first lamella body 21 and second lamella body 22 all locates on the pore wall of through-hole 16, and the movable part overlap setting of first lamella body 21 and second lamella body 22, and the movable part sets up towards conducting hose 8.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (9)
1. An electric knife pen with a suction function, comprising:
the tissue cutting device comprises a cutter head (1), a suction tube (2) and a mounting assembly, wherein the cutter head (1) is arranged on the tube wall of the suction tube (2), and the cutter head (1) is suitable for cutting tissues; the mounting assembly comprises a shell (3) and an insulating sleeve (6), the insulating sleeve (6) is sleeved on the suction tube (2), is arranged between the shell (3) and the cutter head (1), and is suitable for covering the suction tube (2);
an electric control unit (7) which is arranged on the shell (3), is in contact with the suction tube (2) and is suitable for controlling the current on the suction tube (2);
the anti-blocking assembly comprises a conducting hose (8) and an extrusion unit, the conducting hose (8) is arranged at one end, opposite to the cutter head (1), of the suction tube (2) and communicated with the suction tube (2) and the corrugated tube (9), and the extrusion unit is suitable for extruding the conducting hose (8) under the action of external force;
the anti-blocking assembly further comprises a squeezing plate (10) arranged opposite to the squeezing unit and adapted to support the conducting hose (8); the connecting pipe (14) is arranged in the shell (3), is positioned between the conducting hose (8) and the corrugated pipe (9) and is used for communicating the conducting hose (8) and the corrugated pipe (9); the length of the conduction hose (8) is greater than the axial distance between the connecting pipe (14) and the suction pipe (2); the pressing plate (10) is made of an elastic material, which bends the middle of the lead-through hose (8) toward the pressing unit.
2. The electric knife pen with attraction function according to claim 1, wherein the housing (3) comprises a first housing (4) and a second housing (5) connected to the first housing (4), one of the pressing plate (10) and the pressing unit is provided on the first housing (4), and the other is provided on the second housing (5).
3. The electric knife pen with the attraction function according to claim 2, characterized by further comprising:
the mounting structure is arranged on the shell (3), a limiting cavity (11) is formed in the mounting structure, and the extrusion unit penetrates through the limiting cavity (11) to be connected with the conduction hose (8);
the spring (12) is arranged in the limiting cavity (11), is connected with a guide piece (26) on the extrusion unit and is suitable for being compressed under the action of the guide piece (26).
4. The electric knife pen with attraction function according to claim 3, further comprising two sets of locking assemblies, which comprise:
the clamping device comprises a first clamping plate and a second clamping plate (13), wherein one of the first clamping plate and the second clamping plate (13) is arranged on the first shell (4), and the other one of the first clamping plate and the second clamping plate is arranged on the second shell (5);
one end of the conduction hose (8) is sleeved on the suction tube (2) and clamped by the first clamping plate and the second clamping plate (13) of one group of the locking assemblies.
5. The electric knife pen with attraction function according to claim 4, wherein the other end of the conducting hose is sleeved on the connecting pipe (14) and clamped by the first clamping plate and the second clamping plate (13) of the other set of the locking assembly.
6. The electric knife pen with the attraction function according to any one of claims 3 to 5, wherein the pressing unit comprises:
the guide piece (26) is arranged on the outer wall of the extrusion piece (15), the extrusion piece (15) is connected with the conducting hose (8), a through hole (16) is formed in the extrusion piece (15), and the through hole (16) is communicated with the conducting hose (8);
a closing member (17) which is provided at an end of the pressing member (15) remote from the lead-through hose (8) and is made of an elastic material; keep away from closure member (17) the one end of extruded piece (15) is equipped with a plurality of lamellas portion (18), and is adjacent lamella portion (18) laminate mutually in order to seal through-hole (16), lamella portion (18) are suitable for external force extrusion expansion when closure member (17) lateral wall, and are in access transfer line when lamella portion (18) are in the expansion state.
7. The electric knife pen with the attraction function as claimed in claim 6, characterized by further comprising a plurality of deformation chambers (19) which are arranged inside the closing member (17) and/or between the closing member (17) and the pressing member (15).
8. The electric pencil with suction function according to claim 7, characterized in that said closing member (17) covers said pressing member (15), the side wall of said pressing member (15) is adhesively connected with said closing member (17), and the end portion thereof is inserted with said petal portion (18).
9. The electric knife pen with the suction function according to claim 8, characterized in that a one-way valve (20) is further arranged in the through hole (16), the one-way valve (20) is adapted to prevent the substance in the conducting hose (8) from flowing out of the through hole (16) and allow the external substance to flow into the conducting hose (8) through the through hole (16);
check valve (20) include first lamella body (21) and second lamella body (22), first lamella body (21) with the fixed part of second lamella body (22) is all located on the pore wall of through-hole (16), just first lamella body (21) with the movable part of second lamella body (22) overlaps the setting, just the movable part orientation switch on hose (8) and set up.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110240653.7A CN113100912B (en) | 2021-03-04 | 2021-03-04 | Electric knife pen with suction function |
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|---|---|---|---|
| CN202110240653.7A CN113100912B (en) | 2021-03-04 | 2021-03-04 | Electric knife pen with suction function |
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| CN113100912A CN113100912A (en) | 2021-07-13 |
| CN113100912B true CN113100912B (en) | 2021-12-14 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113100915B (en) * | 2021-03-18 | 2021-11-16 | 南昌华安众辉健康科技有限公司 | Anti-blocking electrotome pen and system thereof |
| CN116784776B (en) * | 2023-08-23 | 2023-11-14 | 湖南省华芯医疗器械有限公司 | Valve, handle and endoscope |
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| CN113100912A (en) | 2021-07-13 |
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