CN117860319A - Controllable traction system in art - Google Patents
Controllable traction system in art Download PDFInfo
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- CN117860319A CN117860319A CN202410149011.XA CN202410149011A CN117860319A CN 117860319 A CN117860319 A CN 117860319A CN 202410149011 A CN202410149011 A CN 202410149011A CN 117860319 A CN117860319 A CN 117860319A
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- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 238000004804 winding Methods 0.000 claims abstract description 13
- 239000003990 capacitor Substances 0.000 claims description 15
- 239000013641 positive control Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 2
- 206010028980 Neoplasm Diseases 0.000 abstract description 27
- 230000006378 damage Effects 0.000 abstract description 2
- 208000027418 Wounds and injury Diseases 0.000 abstract 1
- 208000014674 injury Diseases 0.000 abstract 1
- 210000005013 brain tissue Anatomy 0.000 description 6
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- 230000000670 limiting effect Effects 0.000 description 5
- 210000004556 brain Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000013642 negative control Substances 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 238000002271 resection Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
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- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
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- 229910052744 lithium Inorganic materials 0.000 description 1
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Abstract
The invention provides an intraoperative controllable traction system which comprises a traction hook and is characterized by also comprising a pedal traction mechanism, an electric traction mechanism, a traction force detection circuit and a traction force prompting circuit; the electric traction mechanism comprises motor speed reduction equipment, an active winding wheel, a guide pulley seat, an electric telescopic rod, a pressure resistor, a guide shell and traction ropes, wherein the motor speed reduction equipment, the active winding wheel, the guide pulley seat, the electric telescopic rod, the pressure resistor, the guide shell and the traction ropes are arranged in a shell, each traction hook is connected with the side end of the guide shell, the pedal traction mechanism comprises a limit seat, a pedal and a limit ring which are arranged on the shell, and the traction force detection circuit and the traction force prompt circuit are arranged in the element box and are electrically connected. The invention can drive the traction hook to draw and open the tumor-brain interface of the affected part of the patient through motor speed reducing equipment or manual and pedal modes, brings convenience to the operation doctor, improves the operation efficiency, stops traction when the traction reaches a threshold value, gives out sound and light to prompt relevant personnel, ensures proper traction and does not cause injury to the affected part of the patient.
Description
Technical Field
The invention relates to the technical field of surgical auxiliary equipment, in particular to a traction system capable of being controlled in surgery.
Background
Craniocerebral tumor resection is one of the most important surgical parts of neurosurgery, currently, a resector of the intracranial tumor generally needs operation assistance to be carried out on both hands of a doctor (assistant) to separate tumor from brain interfaces, specifically, the assistant gives a certain pulling force to the tumor (pulling brain tissue or pulling tumor tissue) by operating a retractor, so that a tumor-brain interface becomes clear, the separation of the tumor from the brain interfaces or the separation of the tumor from the brain interfaces is facilitated, the tumor can be tightly attached or adhered to the brain surface due to invasiveness and other reasons, and the pulling force is very important for the separation of the tumor and the subsequent normal operation. If the manual pulling is adopted, the surgical assistant needs to pull by hand in the whole course, so that the assistant cannot perform other operations, and personnel resources are occupied.
Although existing retractors meet the needs of surgery to some extent, they suffer from structural and functional limitations and have the following technical problems. Specifically, the existing retractor has fixed retractor mechanisms, along with tumor resection and movement of anatomical positions, an assistant is required to manually and continuously fix and adjust the retractor surfaces of the retractor mechanisms, whether the brain tissue is pulled or the tumor tissue is pulled, inconvenience is brought to the assistant by manual adjustment, and the corresponding operation efficiency is extremely low. In addition, the assistant pulls brain tissue or pulls tumor tissue manually, and the retractor pulls brain tissue or pulls tumor tissue, in actual operation, the operation skills of the assistant affect the brain tissue or pulls tumor tissue differently, when the pulling force is too large, the probability of damaging the operation part of the patient exists, and when the pulling force is too small, the separated interface of the tumor-brain interface does not meet the operation requirement and needs repeated adjustment for many times, so that inconvenience is brought to the assistant, and the operation speed is correspondingly unfavorable to increase.
Disclosure of Invention
In order to overcome the defects of the prior art due to the structural and functional limitations of a retractor used in craniocerebral tumor resection operation and the like, the invention provides a controllable traction system in operation, which can be conveniently installed on an operating table for use under the combined action of related mechanisms, can be conveniently controlled by a simple power switch mode or operated by a pedal mode and the like, can automatically pull a patient operation interface by a retractor hook, can prompt an operation assistant and an operator in time when the retraction force reaches a set threshold value, and ensures that the traction force of reliably pulling a tumor-brain interface is not only too large or too small, but also effectively prevents adverse effects on the operation.
The technical scheme adopted for solving the technical problems is as follows:
the traction system comprises a traction hook and is characterized by also comprising a pedal traction mechanism, an electric traction mechanism, a traction force detection circuit and a traction force prompting circuit; the electric traction mechanism comprises a shell, motor speed reducing equipment, an active winding wheel, a guide pulley seat, an electric telescopic rod, a pressure resistor, a guide shell and a traction rope, wherein the motor speed reducing equipment is arranged on one side in the shell; one end of the traction rope is arranged on the driving winding wheel, and the other end of the traction rope bypasses the outer end of the shell through pulleys of the first set of guide pulley seats and the second set of guide pulley seats; the device comprises a guide shell, a plurality of traction hooks, a pressure resistor, a connecting rope and a sliding block, wherein the connecting rope is arranged outside one side end of the guide shell; the pedal traction mechanism comprises a limit seat, a pedal and a limit ring, one side of the limit ring and one side of the pedal are installed together, the lower end of the limit seat is installed outside the shell, the lower end of the pedal is rotatably installed at the upper end of the limit seat, and the traction rope is movably sleeved in the limit ring; the traction force detection circuit and the traction force prompting circuit are arranged in the element box, and the power input end of the traction force prompting circuit is electrically connected with the power output end of the traction force detection circuit; the two ends of the pressure resistor are respectively and electrically connected with two signal input ends of the traction force detection circuit, and a control signal output end of the traction force detection circuit is electrically connected with a power input end of the motor speed reduction device.
Preferably, the outer diameter of the sliding block is smaller than the inner diameter of the guide housing.
Preferably, an operating rod is installed on one side of the upper end of the pedal pulling mechanism, a plurality of fixing holes are formed in the lower end of the shell, and the shell is installed on the side end of the operating table through the fixing holes.
Preferably, the stress surface of the piezoresistor and the stress surface of the sliding block are in a face-to-face structure, and the protection pad is arranged on the stress surface of the piezoresistor.
Preferably, the traction force detection circuit comprises an electrically connected relay, an adjustable resistor, a resistor and a triode, wherein the positive power input end of the relay is connected with the positive control power input end, one end of the adjustable resistor is connected with one end of the resistor, the other end of the resistor is connected with the base electrode of the triode, the collector electrode of the triode is connected with the negative power input end of the relay, and the negative power input end of the relay is connected with the emitter electrode of the triode and the other end of the adjustable resistor.
Preferably, the traction force prompting circuit comprises a resistor and a capacitor which are electrically connected, a triode, a relay, a light emitting diode and a buzzer, wherein the positive power input end and the positive control power input end of the relay are connected with one end of a first resistor, the other end of the first resistor is connected with one end of a second resistor and the positive electrode of the capacitor, the other end of the second resistor is connected with the base electrode of the triode, the collector electrode of the triode is connected with the negative power input end of the relay, the negative electrode of the capacitor is connected with the emitter electrode of the triode, the negative control power input end of the relay, the buzzer and the negative power input end of the light emitting diode, the normally open contact end and the normally closed contact end of the relay are connected with one end of a third resistor and the positive power input end of the buzzer, and the other end of the third resistor is connected with the positive electrode of the light emitting diode.
Compared with the prior art, the invention has the beneficial effects that: (1) The invention is arranged at the side end of the operating table, the traction hook is disposable, the probability of surgical infection can be prevented, an operator or an assistant can drive the traction hook to draw away the tumor-brain interface of the affected part of the patient through a related mechanism by using a motor speed reducing device through a simple power switch mode, the height of the traction hook can be adjusted through an electric push rod, the traction hook is driven to draw away the tumor-brain interface of the affected part of the patient through a related mechanism by using a manual or pedal mode (a shell is arranged on the ground), the operation options are more flexible and various, the convenience is brought to the operator, and the operation efficiency is correspondingly improved; (2) The traction device can detect traction force in real time when a patient is drawn by the traction hook, can automatically stop traction work when the traction force reaches a threshold value, and prompts related personnel through the buzzer and the light-emitting diode in an acousto-optic manner, so that the patient is not damaged due to overlarge traction force on the basis of ensuring proper traction force, and safe operation is ensured.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the overall structure and a partial enlarged structure of the present invention.
Fig. 3 is a circuit diagram of the present invention.
Detailed Description
The overall principle of the present invention, as shown in fig. 1, includes a traction system 100, a traction power unit fixed on the operating table, and a tension sensing unit capable of setting a maximum tension sensing threshold value, and automatically separating if the maximum tension sensing threshold value is exceeded. B. A traction wire: it needs to be sterile, has certain elasticity and tension, and can be used on a table. C: and (3) a gripper: with a similar retractor or hook device, the present invention is a retractor 1 that can grasp a tumor 400 or brain tissue 300 located within skull shell 200, with the grip setting a maximum tension threshold that automatically disengages if the tension exceeds a certain level (the threshold can be controlled). D. The force-controllable pedal can be controlled by the operator.
Fig. 2 and 3 show, specifically, the controllable traction system of the invention comprises a storage battery C1, a charging socket X, a power switch, a traction hook 1, a pedal traction mechanism, an electric traction mechanism, a traction force detection circuit 2 and a traction force prompting circuit 3; the electric traction mechanism comprises a hollow rectangular shell 41, motor reduction equipment M, an active winding wheel 42, a guide pulley seat 43, an electric telescopic rod M1, a pressure resistor T, a guide shell 44 and a traction rope 45, wherein the lower end of the motor reduction equipment M is longitudinally arranged at the left side end in the shell 41 through bolts, the active winding wheel 42 is welded at the middle part of the rear side end of a rotating shaft of the motor reduction equipment M, the guide pulley seats 43 are two sets, the lower end of the first set of guide pulley seat 43 is welded at the right side end in the shell 41, a guide hole 411 is formed in the middle of the right upper end of the shell 41, the lower end of a cylinder of the electric telescopic rod M1 is arranged in the middle of the right side of the upper end of the shell 41 through bolts, and the lower end of the second set of guide pulley seat 43 is welded on a movable column of the electric telescopic rod M1; the left end of the traction rope 45 is fixed in the middle of the inner side end of the driving winding wheel 42, and the right end of the traction rope 45 is led out to the right through the lower side end of the pulley of the first set of guide pulley seat 43 and the left side end and the right upper end of the pulley of the second set of guide pulley seat 43 (the traction rope 45 is led out from the guide hole 411); the middle part of the right outer side end of the guide shell 44 is welded with a connecting rope 46, the right side end of the connecting rope 46 is connected with an annular fixed ring 47, a plurality of traction hooks 1 are connected, the fixed ropes and the fixed rings 47 which are connected with the left end of each traction hook 1 are connected in a binding way, the middle part of the left side end of the guide shell 44 is provided with an opening, a pressure resistor T is arranged at the upper end of the left part in the guide shell 44 (the lower end of the left part in the guide shell is provided with a supporting seat with the thickness slightly lower than the transverse thickness of the pressure resistor, the pressure resistor T is arranged at the upper end of the opening), and the right front end of the traction rope 45 enters the left end in the guide shell 44 through the opening and is fixedly arranged with the middle part of the left side of a rectangular sliding block 48 in the guide shell; the pedal traction mechanism comprises a limit seat 51, a pedal 52 and a limit ring 53, wherein the left side of the limit ring 53 and the middle of the right side of the pedal 52 are welded together, the lower end of the limit seat 51 is longitudinally welded outside the middle of the shell 41, the middle of the lower end of the pedal 52 is longitudinally welded with a guide tube 54, the front side and the rear side of the guide tube 54 are respectively rotatably arranged in a 'double-layer' type shaft rod at the front part and the rear part of the upper end of the limit seat 51, and a traction rope 45 is movably sleeved in the limit ring 53; the storage battery G1, the charging socket X, the power switch, the traction force detection circuit 2 and the traction force prompting circuit 3 are arranged in the element box 6, and the element box 6 is arranged at the left end in the shell 41 (the handles of all the power switches and the jack of the charging socket are positioned outside the opening at the upper end of the shell).
As shown in fig. 2 and 3, the outer diameter of the slider 48 is slightly smaller than the inner diameter of the guide housing 44. The upper end of the pedal middle part of the pedal traction mechanism is vertically welded with a manual operation rod 55, the lower end of the shell 41 is respectively provided with a plurality of fixing holes, and the shell 41 is arranged on a supporting plate at the side end of an operating table (the height of the supporting plate is lower than the height of the operating table and can be welded at the side end of the operating table) or on the ground through bolts for the fixing holes. The right end of the stress surface of the pressure resistor T is in a face-to-face structure with the left end of the sliding block 48, and the right end of the stress surface of the pressure resistor T is adhered with a protective rubber pad (which protects the stress surface) by adhesive. The traction force detection circuit comprises a relay K1, an adjustable resistor RP, a resistor R1 and a triode Q1 which are connected through circuit board wiring, wherein the positive power input end of the relay K1 is connected with the positive control power input end, one end of the adjustable resistor RP is connected with one end of the resistor R1, the other end of the resistor R1 is connected with the base electrode of the triode Q1, the collector electrode of the triode Q1 is connected with the negative power input end of the relay K1, and the negative control power input end of the relay K1 is connected with the emitter electrode of the triode Q1 and the other end of the adjustable resistor RP. The traction force prompting circuit comprises resistors R2, R3 and R4 connected through a circuit board, a capacitor C1, a triode Q2, a relay K2, a light emitting diode L and a buzzer B1, wherein the positive power input end of the relay K2 and the positive control power input end are connected with one end of a first resistor R2, the other end of the first resistor R2 is connected with one end of a second resistor R3 and the positive end of the capacitor C1, the other end of the second resistor R3 is connected with the base electrode of the triode Q2, the collector electrode of the triode Q2 is connected with the negative power input end of the relay K2, the negative electrode of the capacitor C1 is connected with the emitter electrode of the triode Q2, the negative control power input end of the relay K2, the buzzer B1 and the negative power input end of the light emitting diode L are connected, the normally open contact end of the relay K2 and the normally open contact end of the relay K4 are connected with one end of the third resistor R4, and the positive power input end of the buzzer B1, and the other end of the third resistor R4 is connected with the positive electrode of the light emitting diode L. The two poles of the storage battery G1 are respectively connected with the two ends of the charging socket X through wires (when the storage battery X is in no electricity, an external 12V power charger plug is inserted into the charging socket X to charge the storage battery G1), the two poles of the storage battery G1 are respectively connected in series through a first power switch S, the power input ends 1 and 2 pins of a second power switch S1 and a third power switch S3 are respectively connected through wires, the power output ends 5 and 6 pins of the second power switch S1 (one normally closed contact end of a relay K1 is connected with the power switch S2 in series), the 3 pins and 4 pins of the power output ends, the positive power input end of the relay K1 of the positive and negative poles of the motor speed reduction equipment M and the emitting electrode of a traction force detection circuit are respectively connected through wires, and the power input end resistor R2 end of the traction force prompting circuit, the negative electrode of the capacitor C1 and the second path power output end relay K1 of the traction force detection circuit are respectively connected through wires; the two normally closed contact ends of the relay K1 are respectively connected with the negative and positive electrode power supply input ends of the motor speed reduction equipment M through wires. And the two ends of the pressure resistor T and the positive power input end of the relay K1 at the two signal input ends of the traction force detection circuit are respectively connected with the emitter of the triode Q1 through wires. The power output ends 3, 4 pins and 5, 6 pins of the third power switch S3 are respectively connected with the positive and negative power input ends of the electric telescopic rod M1 through wires.
As shown in fig. 2 and 3, the invention is integrally arranged at the side end of an operating table, and the traction hook 1 is disposable, so that the probability of surgical infection can be prevented. The application flow of the invention is as follows. (1) After the power switch S is turned on, the whole circuit is electrified, a worker dials the handle of the power switch S1 rightwards, the 1 foot, the 2 foot, the 5 foot and the 6 foot of the power switch S1 are respectively communicated, thus, the positive and negative electrode power input ends of the motor speed reduction equipment M are electrified, the rotating shaft of the motor speed reduction equipment M drives the winding wheel 42 to rotate clockwise, the winding wheel 42 unwinds the wound traction rope 45, a doctor or an assistant can lengthen the traction rope 45 towards an operation part, the hook part of the traction hook 1 is conveniently hooked at the corresponding position of an affected part (hooked at a tumor or a head part and the like, and the power switch is turned off after the traction rope is in place). (2) When a doctor or an assistant dials the handle of the power switch S3 leftwards or rightwards according to the requirement, the 1, 2 feet, the 3, 4 feet or the 5, 6 feet of the power switch S3 are respectively communicated, so that the positive and negative electrode power input ends of the electric telescopic rod M1 can be powered on, the movable column of the electric telescopic rod M can drive the second guide pulley seat 43 (the two guide pulley seats 43 play a guide role for a traction rope) to ascend or descend by a height, and the height of the traction hook 1 and the height of a patient operation part are suitable and convenient to traction (the power switch S3 is turned off after the operation part is in place). (3) When pulling, a doctor or an assistant dials the handle of the power switch S1 leftwards, the 1, 2, 3 and 4 feet of the power switch S1 are respectively communicated, so that the pulling force detection circuit works, the two poles of the 12V power supply enter the negative and positive pole power supply input ends of the motor speed reduction equipment M through the two control power supply input ends and the two normally closed contact ends of the relay K1, the rotating shaft of the rotating shaft is driven to rotate the winding wheel 42 anticlockwise by the negative and positive pole power supply input ends of the motor speed reduction equipment M, the winding wheel 42 winds the wound traction rope 45, the tightened traction rope 45 gradually pulls the corresponding position of an affected part (pulls away from a tumor-brain interface), and the power switch S1 is closed after the pulling degree of the tumor-brain interface is proper; specifically, when the traction rope 45 pulls the traction hook, the traction rope pulls the sliding block 48 to move towards the left end, the left end of the sliding block 48 applies an acting force to the pressure resistor T, the larger the traction force is, the larger the resistance value of the pressure resistor T is, otherwise, the smaller the traction force is, the smaller the resistance value of the pressure resistor T is, and the larger the resistance value of the pressure resistor T is; when the traction force is proper, the resistance value of the pressure resistor T is relatively large, the voltage division between the adjustable resistor RP is large, the 12V power supply is divided by the pressure resistor T and the adjustable resistor RP, the voltage is reduced by the resistor R1, the current is limited, the voltage enters the base electrode of the triode Q1 and is lower than 0.7V, the triode Q1 cannot be conducted, then the relay K1 cannot be electrified and attracted, the buzzer and the light-emitting diode cannot work, and the motor speed reduction equipment M can continuously work to pull the corresponding position of a patient through the traction hook; when the traction force is larger than the set threshold value of the adjustable resistor RP (the principle is introduced later), the resistance value of the pressure resistor T is relatively small, the voltage division between the adjustable resistor RP is small, the 12V power supply is divided by the pressure resistor T and the adjustable resistor RP, the resistor R1 is reduced in voltage and limited in current and then enters the triode Q1 base electrode to be higher than 0.7V, the triode Q1 can conduct the collector to output low level and enter the negative electrode power supply input end of the relay K1, then the relay K1 can be electrified and attracted to control the power supply input end and the normally open contact end to be closed, the control power supply input end and the normally open contact end are opened, and the normally closed contact end of the relay K1 is connected with the power supply input end of the motor speed reducing equipment M, so that the motor speed reducing equipment M can lose electricity and not work at the moment, the damage to the affected part or the tissues nearby of a patient due to the overlarge traction force is prevented, and the traction force prompting circuit can work after the traction force reaches the threshold value relay K1 is electrified and attracted. (4) After the traction force prompting circuit is electrified, a 12V power supply can enter the power supply input end of the buzzer B1 through the control of the power supply input end and the normally closed contact end of the relay K2, so that the buzzer B1 is electrified to sound to prompt a doctor or an assistant, the traction force can properly enter an operation flow, meanwhile, the 12V power supply can be electrified for the capacitor C1 through the current limiting and the voltage reducing of the resistor R2, 3 seconds just before the capacitor C1 is fully electrified, the 12V power supply enters the base electrode of the triode Q2 through the current limiting and the voltage reducing of the resistors R2 and R3 to be lower than 0.7V, the triode Q2 is continuously cut off, the relay K2 cannot be electrified, and the buzzer B1 is continuously electrified to sound to prompt; after 3 seconds, when the capacitor C1 is fully charged, a 12V power supply is subjected to current-limiting and voltage-reducing through the resistors R2 and R3, and enters a base electrode of the triode Q2 to be higher than 0.7V, the triode Q2 is conducted, a collector electrode is conducted, low level is output, and enters a negative electrode power supply input end of the relay K2, the relay K2 can be electrified to attract a control power supply input end and a normally open contact end of the relay K2 to be closed, the control power supply input end and the normally open contact end of the relay K2 are opened, furthermore, the buzzer B1 is not electrified to produce sound to prompt, continuous electrification sound to cause interference to doctors or assistants is prevented, meanwhile, the 12V power supply can be controlled by the relay K2 to enter a power supply input end of the light emitting diode L through the relay K2, the light emitting diode L is electrified to continuously prompt that traction force is enough (the resistor R4 is subjected to current-limiting and voltage-reducing), the doctor or the assistants can enter an operation flow, and the doctor or the assistants are prevented from neglecting sounding of the buzzer B1 for various reasons, so that the operation flow is correspondingly delayed. (5) In the invention, a doctor or an assistant can also adjust the traction hook 1 by using a pedal (the invention is arranged on a ground foundation) or manually according to the requirement, when the doctor or the assistant drives the pedal 52 to move along the hinge point of the limiting seat 51 by hands through the manual operation rod 55, or when the rear end of the pedal is stepped on by feet, the limiting ring 53 of the pedal can drive the traction rope 45 to move towards the rear end, so that the traction hook can be pulled to draw the corresponding position of a patient in place (a buzzer and a light-emitting diode can be electrically prompted after the traction hook is in place, the power switch S2 is required to be closed when the step is operated, and the motor speed reduction equipment M is powered off at the moment and does not work).
As shown in fig. 2 and 3, through the combined action of all the mechanisms, an operator or an assistant can drive the traction hook to draw the tumor-brain interface of the affected part of the patient through a related mechanism by controlling the motor speed reducing equipment through a simple power switch mode, and can also drive the traction hook to draw the tumor-brain interface of the affected part of the patient through the related mechanism by manually or in a pedal mode through an electric push rod to adjust the height of the traction hook, thereby bringing convenience to the operator and improving the operation efficiency correspondingly; when the patient affected part is pulled by the traction hook, the traction force can be detected in real time, the traction work can be stopped when the traction force reaches the threshold value, and related personnel are prompted by the buzzer and the light-emitting diode in an acousto-optic manner, so that the patient affected part of the patient is not damaged due to overlarge traction force on the basis of ensuring proper traction force, and the safe operation is ensured. In fig. 2, the resistances R1, R2, R3, R4 are 470K, 2.7M, 470K, 1.8K, respectively; transistors Q1 and Q2 are NPN transistors of model 9013; the relays K1 and K2 are DC12V relays; the buzzer B1 is an active continuous sound buzzer alarm finished product with the model FM-12V; the light-emitting diode L is a red light-emitting diode (the light-emitting surface is positioned outside the upper end of the shell); the capacitor C1 is an electrolytic capacitor of model 1 muF/25V; battery G1 is a lithium battery of model 12V/50 Ah; the motor speed reduction device M is a finished product of a coaxial motor gear reducer with the power of 40W; the electric telescopic rod M1 is a finished product of a reciprocating electric push rod with the power of 35W; the piezoresistor T is the piezoresistor of model FSR 402; the resistance value of the adjustable resistor RP is 470K (the larger the specific resistance value is adjusted to be 32.9K, the larger the partial pressure is, the smaller the corresponding traction force is, the triode Q1 is turned on, that is, the traction force threshold value is set to be relatively small, the smaller the resistance value is adjusted to be, the larger the partial pressure is, the triode Q1 is turned on, that is, the traction force threshold value is set to be relatively large, the handle of the adjustable resistor RP is positioned outside the opening at the upper end of the shell, and the side end of the handle is marked with numbers continuously representing the traction force).
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the two components can be connected mechanically and electrically, can be directly connected, can be indirectly connected through an intermediate medium, and can be communicated with each other inside the two components. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The traction system comprises a traction hook and is characterized by also comprising a pedal traction mechanism, an electric traction mechanism, a traction force detection circuit and a traction force prompting circuit; the electric traction mechanism comprises a shell, motor speed reducing equipment, an active winding wheel, a guide pulley seat, an electric telescopic rod, a pressure resistor, a guide shell and a traction rope, wherein the motor speed reducing equipment is arranged on one side in the shell; one end of the traction rope is arranged on the driving winding wheel, and the other end of the traction rope bypasses the outer end of the shell through pulleys of the first set of guide pulley seats and the second set of guide pulley seats; the device comprises a guide shell, a plurality of traction hooks, a pressure resistor, a connecting rope and a sliding block, wherein the connecting rope is arranged outside one side end of the guide shell; the pedal traction mechanism comprises a limit seat, a pedal and a limit ring, one side of the limit ring and one side of the pedal are installed together, the lower end of the limit seat is installed outside the shell, the lower end of the pedal is rotatably installed at the upper end of the limit seat, and the traction rope is movably sleeved in the limit ring; the traction force detection circuit and the traction force prompting circuit are arranged in the element box, and the power input end of the traction force prompting circuit is electrically connected with the power output end of the traction force detection circuit; the two ends of the pressure resistor are respectively and electrically connected with two signal input ends of the traction force detection circuit, and a control signal output end of the traction force detection circuit is electrically connected with a power input end of the motor speed reduction device.
2. An intraoperative controllable retraction system according to claim 1 wherein the outer diameter of the slider is smaller than the inner diameter of the guide housing.
3. The intraoperative controllable pulling system according to claim 1, wherein the pedal upper end side of the pedal pulling mechanism is provided with an operating rod, the lower end of the housing is provided with a plurality of fixing holes, and the housing is arranged at the operating table side end through the fixing holes.
4. An intraoperative controllable traction system as claimed in claim 1 wherein the force bearing surface of the piezoresistor and the slider are in a face-to-face configuration, the force bearing surface of the piezoresistor being fitted with a protective pad.
5. The intraoperative controllable pulling system according to claim 1, wherein the pulling force detection circuit comprises an electrically connected relay, an adjustable resistor, a resistor and a triode, wherein the relay positive power input end is connected with the positive control power input end, one end of the adjustable resistor is connected with one end of the resistor, the other end of the resistor is connected with the triode base electrode, the triode collector electrode is connected with the relay negative power input end, and the relay negative power input end is connected with the triode emitter electrode and the other end of the adjustable resistor.
6. The intraoperative controllable pulling system according to claim 1, wherein the pulling force prompting circuit comprises a resistor and a capacitor, a triode, a relay, a light emitting diode and a buzzer which are electrically connected, wherein a positive electrode power supply input end and a positive electrode control power supply input end of the relay are connected with one end of a first resistor, the other end of the first resistor is connected with one end of a second resistor and a positive electrode of the capacitor, the other end of the second resistor is connected with a base electrode of the triode, a collector electrode of the triode is connected with a negative electrode power supply input end of the relay, a negative electrode of the capacitor is connected with an emitter electrode of the triode, a negative electrode control power supply input end of the relay, a normally open contact end and a normally closed contact end of the relay are connected with one end of a third resistor and a positive electrode power supply input end of the buzzer, and the other end of the third resistor is connected with a positive electrode of the light emitting diode.
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| CN202410149011.XA CN117860319A (en) | 2024-02-02 | 2024-02-02 | Controllable traction system in art |
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| CN202724057U (en) * | 2012-07-26 | 2013-02-13 | 杨波 | Chair with pedal cervical vertebra tractor |
| CN107625549A (en) * | 2017-09-26 | 2018-01-26 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Wrist joint videoendoscopic surgery hitch frame |
| CN207236888U (en) * | 2017-02-28 | 2018-04-17 | 江苏苏云医疗器材有限公司 | A kind of intelligence draw-gear |
| CN114767186A (en) * | 2022-05-07 | 2022-07-22 | 叶瑞凡 | Convenient operation auxiliary equipment for relieving operation pressure |
| CN219763412U (en) * | 2021-12-27 | 2023-09-29 | 湄洲湾职业技术学院 | Novel neurosurgery retractor |
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- 2024-02-02 CN CN202410149011.XA patent/CN117860319A/en active Pending
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| CN202724057U (en) * | 2012-07-26 | 2013-02-13 | 杨波 | Chair with pedal cervical vertebra tractor |
| CN207236888U (en) * | 2017-02-28 | 2018-04-17 | 江苏苏云医疗器材有限公司 | A kind of intelligence draw-gear |
| CN107625549A (en) * | 2017-09-26 | 2018-01-26 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Wrist joint videoendoscopic surgery hitch frame |
| CN219763412U (en) * | 2021-12-27 | 2023-09-29 | 湄洲湾职业技术学院 | Novel neurosurgery retractor |
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