CN203841754U - External guide type vein thrombosis dredging machine - Google Patents
External guide type vein thrombosis dredging machine Download PDFInfo
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- CN203841754U CN203841754U CN201420171049.9U CN201420171049U CN203841754U CN 203841754 U CN203841754 U CN 203841754U CN 201420171049 U CN201420171049 U CN 201420171049U CN 203841754 U CN203841754 U CN 203841754U
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- cutter
- electric magnet
- dredging machine
- rotor cutter
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Abstract
The utility model discloses an external guide type vein thrombosis dredging machine. The external guide type vein thrombosis dredging machine comprises a rotor cutter and an external magnetic field device; the rotor cutter comprises a casing, a cutter bit, a direct current motor, a control circuit board, two permanent magnets, a density adjusting capsule, thrombolytics, an inflatable tube and a sealing plug; the external magnetic field device comprises two groups of electromagnets; each group of electromagnets comprise four electromagnets which are arranged on the upper side, the lower side, the left side and the right side respectively. According to the external guide type vein thrombosis dredging machine, the rotor cutter is guided through an external magnetic field and accordingly the operation difficulty and cost is reduced.
Description
Technical field
This utility model relates to surgical instruments, is specifically related to a kind of device of removing blood vessel intrinsic obstruction.
Background technology
Endovascular minimally-invasive treatment phlebothrombosis Minimally Invasive Surgery, is auxiliary in technology such as angiography instrument, anesthesia, inserts conduit to focus, a kind of medical skill of performing a surgical operation at Endovascular by operating doctor through cardinal vein blood vessel.Because blood vessel path is complicated, so inserting conduit to focus process is the key link of implementing operation.
In operation process, the guiding of conduit is to realize by the special technical skill of external use by doctor completely, therefore, operating doctor experience and skill are the keys of successful surgery, if misoperation, can cause the lumen of vessels damage of introductory path, even operative failure.In addition, the material using in operation process is all disposable, and therapeutic process is generally by once having performed the operation, so operation cost is also high.
Utility model content
The deficiency that this utility model exists in order to overcome above prior art, provides a kind of external guiding phlebothrombosis dredging machine, and rotor cutter is implemented guiding by external electromagnetic field, reduces operating difficulty and cost.
The purpose of this utility model realizes by following technical scheme: this external guiding phlebothrombosis dredging machine, comprise rotor cutter and external magnetic field device,
Described rotor cutter comprises housing, cutter head, direct current generator, control circuit board, two blocks of permanent magnets, Auto-regulating System of Density of Heavy Medium capsule, thrombolytics, gas tube and sealing-plug, described housing is olive-shaped, permanent magnet sticks with glue knot in housing, control circuit board is fixed between two permanent magnets, direct current generator is fixed on control circuit board, direct current generator connects cutter head lower end, cutter head is the hollow structure of bottom of which has holes, cutter head lower end is provided with the projection of one straight line, projection is stuck on the end cap of housing, Auto-regulating System of Density of Heavy Medium capsule is positioned under control circuit board, gas tube Connection Density regulates capsule, the entrance of gas tube arranges sealing-plug, thrombolytics is filled in the inner chamber of housing,
Described external magnetic field device comprises two groups of electric magnet, and every group of electric magnet comprises four electric magnet up and down.
The splitted structure of the opening of described housing for can outwards opening.
The sword of described cutter head upper end is zigzag.
Described electric magnet is for using the outer coiling of the stamping forming annular core of silicon steel sheet, every group of electric magnet is arranged in a circular support, two circular supports are vertically mounted on respectively on slide, two circular supports are at a distance of 50mm, slide is arranged on leading screw, two guide rods are through slide, and leading screw connects motor.
Described control circuit board comprises single-chip microcomputer, motor-drive circuit and power circuit, single-chip microcomputer connects motor-drive circuit, motor-drive circuit connects direct current generator, power circuit comprises charge coil, bridge rectifier, super capacitor and rechargeable battery, rechargeable battery, the two parallel connection of super capacitor, bridge rectifier is comprised of four diode VD1, VD2, VD3 and VD4; Two permanent magnets are all wound with solenoid, the solenoid series connection that is wound on two permanent magnets is connected to bridge rectifier afterwards, between solenoid and bridge rectifier, be connected to isolating diode VD5, the control signal of input single-chip microcomputer is taken between isolating diode VD5 and bridge rectifier.
The method of work of above-mentioned external guiding phlebothrombosis dredging machine, comprises the following steps:
(1), utilize syringe to Auto-regulating System of Density of Heavy Medium capsule, to be filled with gas through sealing-plug and gas tube, rotor cutter relative density and venous blood are approached, in vein blood vessel in suspended state;
(2), rotor cutter is put into vein blood vessel, when rotor cutter is done rectilinear motion, two left side electric magnet of two circular supports produce the electromagnetic field that is equivalent to the S utmost point, two the right electric magnet produce the electromagnetic field that is equivalent to the N utmost point, and two tops and two following electric magnet no powers, make rotor cutter in suspended state, slide is under step motor drive, move along a straight line, due to the effect of magnetic field force, rotor cutter is along with electric magnet is done rectilinear motion; When if arrival vein blood vessel crotch need to turn left, circular support left side electric magnet and the right electric magnet produce the electromagnetic field that is equivalent to the S utmost point above, circular support left side electric magnet and the right electric magnet produce the electromagnetic field that is equivalent to the N utmost point below, make rotor cutter be subject to counterclockwise torque, thereby turn left; When if arrival vein blood vessel crotch need to be turned right, circular support left side electric magnet and the right electric magnet produce the electromagnetic field that is equivalent to the N utmost point above, circular support left side electric magnet and the right electric magnet produce the electromagnetic field that is equivalent to the S utmost point below, make rotor cutter be subject to clockwise torque effect, thereby turn right; Rotor cutter in the process of advancing, the guide effect by lumen of vessels to rotor cutter, by the 3D rendering of angiography instrument, guided rotor cutter arrives lesions position;
(3), arrive after lesions position, external magnetic field device controls that rotor cutter intermittently advances, retreats, forward, reversion, cutter head stretches out shrinks with cutter head:
Rotor cutter advances: motor drives slide by leading screw, controls rotor cutter advance by advancing of slide;
Rotor cutter retreats: motor drives slide by leading screw, controls rotor cutter retreat by retreating of slide;
Rotor cutter forward: circular support is switched in the following order above: the upper right S of S → left N of S → left S right N → lower N under upper N, produce the magnetic field that turns clockwise, rotor cutter also turns clockwise under the effect of rotating excitation field,
Rotor cutter reversion: circular support is switched in the following order above: the right N of N → left S under the right S of S → left N under upper N → upper S, produce and be rotated counterclockwise magnetic field, rotor cutter is also rotated counterclockwise under the effect of rotating excitation field;
Cutter head stretches out: the solenoid in rotor cutter receives the control signal of external electromagnetic field carrier wave and inputs single-chip microcomputer, single-chip microcomputer is controlled direct current generator by motor-drive circuit and is rotated, cutter head stretches out, the opening of housing opens, and the thrombosis granule that external and internal pressure official post is dissolved is inhaled in housing and is dissolved fast by thrombolytics;
Cutter head shrinks: solenoid receives external control signal, and single-chip microcomputer reverses direct current generator by motor-drive circuit, and cutter head shrinks, and external and internal pressure official post thrombolytics is extruded and is discharged into thrombosis from the hole of cutter head bottom;
Rotor cutter is pulverized thrombosis, and the specific surface area of thrombosis granule is increased considerably, and thrombolytics is in the local high concentration thrombolytics region that forms of lesions position simultaneously;
(4), at the sticky note permanent magnet of patient's body surface, rotor cutter location, waits for operation next time.
Operation principle of the present utility model is:
Thrombosis dredging machine is based on magnetic interaction principle and autosynchronous motor principle design, the electromagnetic field (being equivalent to motor stator) changing by applying in vitro specific rule, utilize magnetic interaction to guide the rotor cutter (rotor that is equivalent to motor) of the vein blood vessel that implants to arrive lesions position, and then rotor cutter is applied to rotating excitation field, control the motion mode (forward and backward) of rotor cutter, pulverize thrombosis, the specific surface area of thrombosis granule is increased considerably; Preset slow release thrombolytics in rotor cutter, can form high concentration thrombolytics region lesions position is local, thus the curative effect of increasing substantially.
This utility model has advantages of as follows with respect to prior art:
1, housing is made by the soft macromolecular material that does not produce rejection effect with human body, adds that olive-shaped structure is conducive to rotor cutter and moves in blood vessel, and can injured blood vessel wall.
2, in rotor cutter housing, most of space-filling has thrombolytics, and Auto-regulating System of Density of Heavy Medium capsule, for adjusting the relative density of rotor cutter, approaches and density of blood the relative density of rotor cutter, is beneficial to the control of the kinestate of rotor cutter in body.
3, rotor cutter outward appearance is olive shape, utilizes constraint and the guide effect of lumen of vessels, guarantees that rotor cutter can not be partial to or turn around, and rotor cutter head portion is pointed to thrombosis direction along blood vessel all the time, in case injured blood vessel wall during the sub-cutter motion of spline.
4,, after rotor cutter was treated in this stage, adopt the mode at the sticky note permanent magnet of body surface, the specific part being fixed, patient can depart from external control section normal activity.
5, drive the electromagnetic field of rotor cutter by computer electronic control unit, the energising situation of 8 electric magnet to be controlled and produced, by doctor according to treatment needs, pass through in advance computer settings motion path and control parameter, and by simulation run correction operational factor, then by computer control, being treated.
6, rotor cutter inside is provided with permanent magnet, the kinestate of rotor cutter is to implement to control by external electromagnetic field, 8 electric magnet are under computer is controlled, rotor cutter is implemented guiding by external electromagnetic field, has reduced existing Minimally Invasive Surgery and in conduit insertion process, has injured the risk of lumen of vessels and the technical difficulty of conduit update.
7, the path of navigation of rotor cutter and the planning of therapeutic process are to carry out under the 3D rendering of angiography instrument is assisted, and path of navigation can first carry out emulation testing, and is optimized by emulation testing; The process that the path of navigation of rotor cutter is implemented, monitors in real time by the 3D rendering of angiography instrument, reduces operation risk.
8, because most of thrombosis operations are not disposable, need repeatedly intermittently to carry out.This utility model therapy apparatus is at treatment tempus intercalare, can make rotor cutter locate ad-hoc location in vivo by the mode of external fixing permanent magnet, avoid existing Minimally Invasive Surgery Repeated Operation to repeat to insert catheter procedure, improve therapeutic efficiency, reduced patient's pain and surgery cost.Doctor can be as required, once can implant the rotor cutter (many places thrombosis or with a thrombus treatment of a plurality of rotor cuttves treatment) of a plurality of different sizes, takes out rotor cutter after surgery completes again.
Accompanying drawing explanation
Fig. 1 is the cutaway view (cutter head does not stretch out) of rotor cutter of the present utility model.
Fig. 2 is the cutaway view (cutter head stretches out) of rotor cutter of the present utility model.
Fig. 3 is the structural representation of circular support and electric magnet.
Fig. 4 is the schematic diagram of lead-screw drive mechanism.
Fig. 5 is the circuit diagram of control circuit board.
Fig. 6 is the circuit diagram of power circuit.
Fig. 7 is the schematic diagram (top view) that rotor cutter turns left.
Fig. 8 is the schematic diagram of rotor cutter rotation.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
This external guiding phlebothrombosis dredging machine, comprises rotor cutter and external magnetic field device,
As shown in Figure 1, described rotor cutter comprises housing 1, cutter head 2, direct current generator 3, control circuit board 4, two blocks of permanent magnets 5, Auto-regulating System of Density of Heavy Medium capsule 6, thrombolytics 7, gas tube 8 and sealing-plug 9, described housing 1 is olive-shaped, permanent magnet 5 sticks with glue knot in housing 1, control circuit board 4 is fixed between two permanent magnets 5, direct current generator 3 is fixed on control circuit board 4, direct current generator 3 connects cutter head 2 lower ends, the hollow structure that cutter head 2 is bottom of which has holes, cutter head 2 lower ends are provided with the projection 18 of one straight line, projection 18 is stuck on the end cap 17 of housing 1, Auto-regulating System of Density of Heavy Medium capsule 6 is positioned at control circuit board 4 times, gas tube 8 Connection Density regulate capsule 6, the entrance of gas tube 8 arranges sealing-plug 9, thrombolytics 7 is filled in the inner chamber of housing 1,
As shown in Figure 3, described external magnetic field device comprises two groups of electric magnet 12, and every group of electric magnet 12 comprises four electric magnet up and down.
The splitted structure of the opening of described housing 1 for can outwards opening.
The sword of described cutter head 2 upper ends is zigzag.
As shown in Figure 3, described electric magnet 12 is for using the outer coiling of the stamping forming annular core of silicon steel sheet, every group of electric magnet 12 is arranged in a circular support 11, as shown in Figure 4, two circular supports 11 are vertically mounted on respectively on slide 15, and two circular supports 11 are at a distance of 50mm, and slide 15 is arranged on leading screw 13, two guide rods 14 are through slide 15, and leading screw 13 connects motor 16.
As shown in Figure 5, described control circuit board comprises single-chip microcomputer, motor-drive circuit and power circuit, single-chip microcomputer connects motor-drive circuit, motor-drive circuit connects direct current generator, power circuit comprises charge coil, bridge rectifier, super capacitor and rechargeable battery, rechargeable battery, the two parallel connection of super capacitor, bridge rectifier is comprised of four diode VD1, VD2, VD3 and VD4; Two permanent magnets are all wound with solenoid, the solenoid series connection that is wound on two permanent magnets is connected to bridge rectifier afterwards, between solenoid and bridge rectifier, be connected to isolating diode VD5, the control signal of input single-chip microcomputer is taken between isolating diode VD5 and bridge rectifier.
Solenoid has following effect: the faradic current that the high-frequency alternating magnetic field that utilizes external electromagnetic ferrum to produce produces in solenoid is the rechargeable battery charging in control circuit board, also for receiving the control signal to direct current generator of high-frequency alternating magnetic field carrier wave for the device charging of external magnetic field, control signal is controlled turning to of direct current generator, just can control the position of cutter head.
Bridge rectifier has following 2 effects: carry out after rectification the faradic current of solenoid (1), to super capacitor and rechargeable battery charging; (2) utilize the buffer action of isolating diode VD5, take out and be carried in the control instruction in faradic current, be input to single-chip microcomputer.
The method of work of above-mentioned external guiding phlebothrombosis dredging machine, comprises the following steps:
(1), utilize syringe to Auto-regulating System of Density of Heavy Medium capsule, to be filled with gas through sealing-plug and gas tube, make rotor cutter in vein blood vessel in suspended state;
(2), rotor cutter is put into vein blood vessel, when rotor cutter is done rectilinear motion, two left side electric magnet of two circular supports produce the electromagnetic field that is equivalent to the S utmost point, two the right electric magnet produce the electromagnetic field that is equivalent to the N utmost point, and two tops and two following electric magnet no powers, make rotor cutter in suspended state, slide is under step motor drive, move along a straight line, due to the effect of magnetic field force, rotor cutter is along with electric magnet is done rectilinear motion; When if arrival vein blood vessel crotch need to turn left, as shown in Figure 7, circular support left side electric magnet and the right electric magnet produce the electromagnetic field that is equivalent to the S utmost point above, circular support left side electric magnet and the right electric magnet produce the electromagnetic field that is equivalent to the N utmost point below, make rotor cutter be subject to counterclockwise torque, thereby turn left; When if arrival vein blood vessel crotch need to be turned right, circular support left side electric magnet and the right electric magnet produce the electromagnetic field that is equivalent to the N utmost point above, circular support left side electric magnet and the right electric magnet produce the electromagnetic field that is equivalent to the S utmost point below, make rotor cutter be subject to clockwise torque effect, thereby turn right; Rotor cutter in the process of advancing, the guide effect by lumen of vessels to rotor cutter, by the 3D rendering of angiography instrument, guided rotor cutter arrives lesions position;
(3), arrive after lesions position, external magnetic field device is controlled the advancing of rotor cutter intermittent, is retreated, forward, reversion, cutter head stretches out shrinks with cutter head:
Rotor cutter advances: motor drives slide by leading screw, and by advancing of slide, control rotor cutter and advance,
Rotor cutter retreats: motor drives slide by leading screw, and by retreating of slide, control rotor cutter and retreat,
Rotor cutter forward: circular support is switched in the following order above: the upper right S of S → left N of S → left S right N → lower N under upper N, produce the magnetic field that turns clockwise, rotor cutter also turns clockwise under the effect of rotating excitation field,
Rotor cutter reversion: circular support is switched in the following order above: the right N of N → left S under the right S of S → left N under upper N → upper S, produce and be rotated counterclockwise magnetic field, rotor cutter is also rotated counterclockwise under the effect of rotating excitation field;
Cutter head stretches out: as shown in Figure 2, solenoid in rotor cutter receives the control signal of external electromagnetic field carrier wave and inputs single-chip microcomputer, single-chip microcomputer is controlled direct current generator by motor-drive circuit and is rotated, cutter head stretches out, the opening of housing opens, and the thrombosis granule that external and internal pressure official post is dissolved is inhaled in housing and is dissolved fast by thrombolytics;
Cutter head shrinks: solenoid receives external signal, and single-chip microcomputer reverses direct current generator by motor-drive circuit, and cutter head shrinks, and external and internal pressure official post thrombolytics is extruded and is discharged into thrombosis from the hole of cutter head bottom;
Rotor cutter is pulverized thrombosis, and the specific surface area of thrombosis granule is increased considerably, and thrombolytics is in the local high concentration thrombolytics region that forms of lesions position simultaneously;
(4), at the sticky note permanent magnet of patient's body surface, rotor cutter location, waits for operation next time, patient gets final product normal activity.
The above-mentioned specific embodiment is preferred embodiment of the present utility model; can not limit claim of the present utility model; other any change that does not deviate from the technical solution of the utility model and make or other equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (5)
1. external guiding phlebothrombosis dredging machine, comprises rotor cutter and external magnetic field device, it is characterized in that:
Described rotor cutter comprises housing, cutter head, direct current generator, control circuit board, two blocks of permanent magnets, Auto-regulating System of Density of Heavy Medium capsule, thrombolytics, gas tube and sealing-plug, described housing is olive-shaped, permanent magnet sticks with glue knot in housing, control circuit board is fixed between two permanent magnets, direct current generator is fixed on control circuit board, direct current generator connects cutter head lower end, cutter head is the hollow structure of bottom of which has holes, cutter head lower end is provided with the projection of one straight line, projection is stuck on the end cap of housing, Auto-regulating System of Density of Heavy Medium capsule is positioned under control circuit board, gas tube Connection Density regulates capsule, the entrance of gas tube arranges sealing-plug, thrombolytics is filled in the inner chamber of housing,
Described external magnetic field device comprises two groups of electric magnet, and every group of electric magnet comprises four electric magnet up and down.
2. external guiding phlebothrombosis dredging machine according to claim 1, is characterized in that: the splitted structure of the opening of described housing for can outwards opening.
3. external guiding phlebothrombosis dredging machine according to claim 2, is characterized in that: the sword of described cutter head upper end is zigzag.
4. external guiding phlebothrombosis dredging machine according to claim 3, it is characterized in that: described electric magnet is for using the outer coiling of the stamping forming annular core of silicon steel sheet, every group of electric magnet is arranged in a circular support, two circular supports are vertically mounted on respectively on slide, two circular supports are at a distance of 50mm, slide is arranged on leading screw, and two guide rods are through slide, and leading screw connects motor.
5. external guiding phlebothrombosis dredging machine according to claim 4, it is characterized in that: described control circuit board comprises single-chip microcomputer, motor-drive circuit and power circuit, single-chip microcomputer connects motor-drive circuit, motor-drive circuit connects direct current generator, power circuit comprises charge coil, bridge rectifier, super capacitor and rechargeable battery, rechargeable battery, the two parallel connection of super capacitor, bridge rectifier is comprised of four diode VD1, VD2, VD3 and VD4; Two permanent magnets are all wound with solenoid, the solenoid series connection that is wound on two permanent magnets is connected to bridge rectifier afterwards, between solenoid and bridge rectifier, be connected to isolating diode VD5, the control signal of input single-chip microcomputer is taken between isolating diode VD5 and bridge rectifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420171049.9U CN203841754U (en) | 2014-04-09 | 2014-04-09 | External guide type vein thrombosis dredging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420171049.9U CN203841754U (en) | 2014-04-09 | 2014-04-09 | External guide type vein thrombosis dredging machine |
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| Publication Number | Publication Date |
|---|---|
| CN203841754U true CN203841754U (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420171049.9U Withdrawn - After Issue CN203841754U (en) | 2014-04-09 | 2014-04-09 | External guide type vein thrombosis dredging machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103961156A (en) * | 2014-04-09 | 2014-08-06 | 广东机电职业技术学院 | In-vitro guiding type phlebothrombosis dredging machine and working method thereof |
| CN109171976A (en) * | 2018-10-22 | 2019-01-11 | 中国人民解放军陆军军医大学第附属医院 | A kind of vascular surgery robot accurately controlled and its operating method |
| CN111050673A (en) * | 2017-10-04 | 2020-04-21 | 泰尔茂株式会社 | Medical device, rotation control method for medical device, and rotation control device |
-
2014
- 2014-04-09 CN CN201420171049.9U patent/CN203841754U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103961156A (en) * | 2014-04-09 | 2014-08-06 | 广东机电职业技术学院 | In-vitro guiding type phlebothrombosis dredging machine and working method thereof |
| CN103961156B (en) * | 2014-04-09 | 2016-03-02 | 广东机电职业技术学院 | External guiding phlebothrombosis dredging machine and method of work thereof |
| CN111050673A (en) * | 2017-10-04 | 2020-04-21 | 泰尔茂株式会社 | Medical device, rotation control method for medical device, and rotation control device |
| US11826072B2 (en) | 2017-10-04 | 2023-11-28 | Terumo Kabushiki Kaisha | Medical device, method for controlling rotation of medical device, and rotation controller |
| CN109171976A (en) * | 2018-10-22 | 2019-01-11 | 中国人民解放军陆军军医大学第附属医院 | A kind of vascular surgery robot accurately controlled and its operating method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140924 Effective date of abandoning: 20160302 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |