CN114601501A - Plugging device and withdrawing unit of intravascular ultrasonic withdrawing system - Google Patents
Plugging device and withdrawing unit of intravascular ultrasonic withdrawing system Download PDFInfo
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- 238000002608 intravascular ultrasound Methods 0.000 claims abstract description 38
- 230000033001 locomotion Effects 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000004308 accommodation Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 6
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- 238000001514 detection method Methods 0.000 description 19
- 238000006073 displacement reaction Methods 0.000 description 15
- 230000007246 mechanism Effects 0.000 description 15
- 238000002604 ultrasonography Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 5
- 238000003384 imaging method Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
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- 238000010586 diagram Methods 0.000 description 4
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- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
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- 241000773945 Trimusculidae Species 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000012285 ultrasound imaging Methods 0.000 description 2
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
- A61B8/0891—Detecting organic movements or changes, e.g. tumours, cysts, swellings for diagnosis of blood vessels
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4438—Means for identifying the diagnostic device, e.g. barcodes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
- A61B8/445—Details of catheter construction
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/54—Control of the diagnostic device
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Abstract
The invention relates to the field of medical equipment, and provides a plugging device of an intravascular ultrasound retraction system, which comprises a locking part, wherein the locking part comprises: the ultrasonic catheter comprises an accommodating cavity, a catheter joint and a catheter, wherein one end of the accommodating cavity is opened, and the accommodating cavity is used for accommodating the catheter joint of the ultrasonic catheter; the locking piece is arranged in the accommodating cavity and can move along the radial direction of the accommodating cavity, so that the catheter joint is clamped to prevent the catheter joint from moving along the axial direction of the accommodating cavity; and a control member that controls the movement of the lock member in the radial direction; compared with the prior art, the pipe joint does not need to be plugged into or pulled out of the plugging device by applying axial force during installation or disassembly, so that the problem that the ultrasonic pipe or the pipe joint or the plugging device is structurally damaged due to the process is solved.
Description
The application is a divisional application with the title of 'plug device and retraction unit of intravascular ultrasound retraction system' on application number 202111142437.5, application date 2021, 9/28.
Technical Field
The application relates to the field of medical equipment, in particular to a plugging device and a withdrawing unit of an intravascular ultrasound withdrawing system.
Background
Interventional Ultrasound (Ultrasound) technology, which is a branch of modern Ultrasound medicine, is a new technology developed on the basis of Ultrasound imaging to further meet the needs of clinical diagnosis and treatment. An interventional ultrasound system, such as an intravascular ultrasound imaging system, mainly comprises an ultrasound catheter with an ultrasound sensor, a retraction unit and an ultrasound imaging host, wherein the ultrasound catheter with the ultrasound sensor is connected with the retraction unit, and the retraction unit is connected with the imaging host; the ultrasonic catheter with the ultrasonic sensor is a disposable sterile instrument, is connected with a motor system of the withdrawing unit through an ultrasonic catheter joint, and is powered by the motor system to move. The movement pattern includes rotation and withdrawal movement in the direction of the catheter.
The rotational movement is a cross-sectional view that allows viewing of the current position of the transducer; if the ultrasonic probe is retracted while rotating, a series of sectional views on the retraction path can be obtained, and the whole ultrasonic information on the retraction path can be obtained by splicing the series of sectional views; the common use is rotation and retraction.
In the prior art, in order to ensure that a support in a retraction unit is connected with a catheter connector of an ultrasonic catheter, a plugging mechanism is used for locking and limiting the catheter structure, the plugging mechanism is arranged in a motor of the retraction unit, and the catheter connector is connected with the plugging mechanism, so that the limitation of the catheter is realized, and the reliability of the connection of the catheter and the catheter is ensured.
Disclosure of Invention
The invention provides a plugging device of an intravascular ultrasound retraction system, which aims to solve the problem that the service life of an ultrasound catheter and a plugging mechanism in the prior art is shortened due to repeated plugging operation.
The invention provides a plugging device of an intravascular ultrasound retraction system, which comprises a locking part, wherein the locking part comprises:
the ultrasonic catheter comprises an accommodating cavity, a fixing part and a fixing part, wherein one end of the accommodating cavity is opened and is used for accommodating a catheter joint of an ultrasonic catheter;
the locking piece is arranged in the accommodating cavity and can move along the radial direction of the accommodating cavity, so that the catheter joint is clamped to prevent the catheter joint from moving along the axial direction of the accommodating cavity; and the number of the first and second groups,
a control member that controls movement of the lock member in the radial direction;
the locking piece comprises a one-way tenon card; a radial hole is formed in the cavity wall of the accommodating cavity, the one-way tenon card is assembled in the radial hole, and the one-way tenon card moves along the length direction of the radial hole under the driving of the control part; the tail end of the one-way tenon card comprises a locking surface and a first guide inclined surface which are deviated from each other; the first guide inclined plane is positioned on one side facing the opening of the accommodating cavity; a limiting groove is formed in the side face of the conduit joint opposite to the one-way tenon card;
the control piece comprises a joint key and a second return device; connect the button to follow second return means's length direction mobilizable install in the holding chamber is outside, connect the button including the driving arm, the end of driving arm is including the inclined plane that leans out, the button shell fragment is relative the inclined plane is equipped with the second and leads the inclined plane, the inclined plane with the second is led the inclined plane and is contacted.
Preferably, the catheter connector comprises two groups of locking pieces which are arranged oppositely and respectively lock the catheter connector from two opposite sides of the catheter connector.
Preferably, a first return device is further provided, and the first return device comprises a first guide column and a first return spring; the first guide column is radially arranged on the outer surface of the accommodating cavity; the one-way tenon card comprises a key elastic sheet at the front end of the one-way tenon card, and the key elastic sheet is movably arranged on the first guide column through a first guide hole formed in the key elastic sheet; the top end of the first guide column is provided with a limiting sheet, and the first return spring is sleeved on the first guide column and is positioned between the limiting sheet and the button elastic sheet; the first return device pushes the locking piece in the radial direction, so that the tail end of the one-way tenon card enters the accommodating cavity.
Preferably, the outer surface of the accommodating cavity is provided with two parallel first guide posts; the key elastic sheet is movably arranged on the two first guide posts through the two first guide holes which are oppositely arranged; the two first return springs and the two limiting pieces are correspondingly arranged on the two first guide posts respectively; the tail end of the one-way tenon card is connected to the middle position of the lower end face of the key elastic sheet.
Preferably, the second return device comprises a second guide post and a second return spring, and the second guide post is mounted on the outer surface of the accommodating cavity along the radial direction; the joint key is movably sleeved on the second guide column through a second guide hole formed in the joint key, and the second return spring is sleeved on the second guide column and is positioned between the outer surface of the accommodating cavity and the joint key.
Preferably, two groups of control parts are respectively arranged and respectively control the two locking parts to move along the radial direction.
Preferably, the control piece is provided, and two transmission arms are symmetrically connected to two sides of the joint key of the control piece; the tail ends of the two transmission arms are respectively contacted with the second guide inclined surfaces of the two locking pieces; the control part can simultaneously control the two locking parts to move along the radial direction.
Preferably, the key device further comprises a displacement sensor, the displacement sensor is arranged on the locking part, and the displacement sensor is configured to detect the displacement of the key dome moving along the first guide column.
Preferably, the insertion and extraction device of the intravascular ultrasound retraction system comprises a base, and the locking part is mounted on the base.
The invention provides a detection device which is arranged in a plugging device of an intravascular ultrasonic retraction system and is used for detecting whether a catheter connector and the plugging device are assembled in place or not.
Preferably, an installation groove is formed in the inner side wall of the accommodating cavity, and the detection device is installed in the installation groove.
Preferably, the detection device adopts non-contact sensing equipment;
or a contact sensing device is adopted;
or the non-contact sensing device and the contact sensing device are used together.
Preferably, the contact type sensing equipment is a detection switch, the detection switch comprises a shifting rod, and the free end of the shifting rod enters the accommodating cavity; when the conduit joint is assembled in place, the free end of the shifting lever is displaced to be in contact with the contact point due to the extrusion of the conduit joint, the detection switch is triggered, and the system recognizes that the conduit joint is assembled in place.
Preferably, the non-contact sensing device is an RFID radio frequency identification device.
The invention provides a retraction unit, which comprises a plugging device of the intravascular ultrasonic retraction system and the detection device.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: the plugging device of the intravascular ultrasound retraction system comprises a locking part, wherein the locking part comprises an accommodating cavity, and a locking piece which can lock or release the catheter joint inserted into the accommodating cavity is arranged in the accommodating cavity; a control piece is arranged to control the locking piece to execute the locking or releasing operation; compared with the traditional conduit joint locked through interference fit, in the invention, the conduit joint does not need to be plugged into or pulled out of the plugging device by applying axial force during installation or disassembly, so that the problem of structural damage of the ultrasonic conduit or the conduit joint or the plugging device caused by the process is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
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 for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a perspective view of a plugging device of an intravascular ultrasound retraction system according to an embodiment of the present application.
Fig. 2 is a front view of a plugging device of an intravascular ultrasound retraction system according to an embodiment of the present application.
Fig. 3 is a right side view of a plugging device of an intravascular ultrasound retraction system according to an embodiment of the present application.
Fig. 4 is a B-B position cross-sectional view of a plugging device of an intravascular ultrasound retraction system according to an embodiment of the present application.
Fig. 5 is a perspective view of a partial structure of a plugging device of an intravascular ultrasound retraction system according to an embodiment of the present application.
Fig. 6 is a partial cross-sectional view of a plugging device of an intravascular ultrasound retraction system according to an embodiment of the present application.
Fig. 7 is a partial cross-sectional view of a pluggable device of an intravascular ultrasound retraction system according to an embodiment of the present application.
Fig. 8 is a perspective view of a locking member of a plugging device of an intravascular ultrasound retraction system according to an embodiment of the present application.
Fig. 9 is a side view of a locking member of a push-pull device of an intravascular ultrasound retraction system according to an embodiment of the present disclosure.
Fig. 10 is a perspective view of a connector button of a plugging device of an intravascular ultrasound retraction system according to an embodiment of the present application.
Fig. 11 is a schematic structural diagram of a detection apparatus according to an embodiment of the present application.
Fig. 12 is a structural diagram of a retraction unit according to an embodiment of the present application.
Fig. 13 is an exploded view of a retraction unit according to an embodiment of the present application.
Description of the drawings: 1-base, 2-connector button, 201-transmission arm, 202-second guide hole, 203-guide sleeve, 204-inclined plane, 3-second return spring, 4-first return spring, 5-detection switch, 6-button shrapnel, 601-first guide hole, 602-second guide inclined plane, 7-lug, 8-one-way tenon card, 801-locking plane, 802-first guide inclined plane, 9-second guide column, 10-first guide column, 11-limiting sheet, 12-conduit connector, 1201-limiting groove, 13-deflector rod, 14-locking part, 1401-containing cavity and 1402-radial hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. 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 application.
In the prior art, in order to ensure that a bracket in a retraction unit is connected with a catheter connector of an ultrasonic catheter, a plugging mechanism is used for locking and limiting a catheter structure, the plugging mechanism is arranged in a motor of the retraction unit, and the catheter connector is connected with the plugging mechanism, so that the limitation of the catheter is realized, and the reliability of the connection of the catheter and the catheter is ensured; in order to solve the technical problems, the invention provides a plugging device of an intravascular ultrasound retraction system, which locks a catheter connector mounted on a plugging mechanism through a controllable locking piece, thereby solving the technical problems.
Referring to fig. 1 to 13, in which, fig. 1 is a perspective view of a plugging device of an intravascular ultrasound retraction system according to an embodiment of the present application;
fig. 2 is a front view of a plugging device of an intravascular ultrasound retraction system according to an embodiment of the present application; fig. 3 is a right side view of a plugging device of an intravascular ultrasound retraction system provided in an embodiment of the present application; FIG. 4 is a B-B position cross-sectional view of a pluggable device of the intravascular ultrasound retraction system provided in an embodiment of the present application; fig. 5 is a perspective view of a part of a plugging device of an intravascular ultrasound retraction system according to an embodiment of the present application; fig. 6 is a partial cross-sectional view of a pluggable device of an intravascular ultrasound retraction system according to an embodiment of the present application; fig. 7 is a partial cross-sectional view of a pluggable device of an intravascular ultrasound retraction system provided in an embodiment of the present application; FIG. 8 is a perspective view of a locking member of a pluggable device of an intravascular ultrasound retraction system according to an embodiment of the present application; FIG. 9 is a side view of a locking member of a pluggable device of an intravascular ultrasound retraction system according to an embodiment of the present application; fig. 10 is a perspective view of a connector button of a plugging device of the intravascular ultrasound retraction system according to the present embodiment; fig. 11 is a schematic structural diagram of a detection apparatus according to an embodiment of the present application; fig. 12 is a structural diagram of a retraction unit according to an embodiment of the present application; fig. 13 is an exploded view of a retraction unit according to an embodiment of the present application.
Specifically, the present invention provides an insertion and extraction device for an intravascular ultrasound retraction system, including a locking portion 14, where the locking portion 14 includes:
the ultrasonic catheter comprises a containing cavity 1401, wherein one end of the containing cavity 1401 is opened, and the containing cavity 1401 is used for containing a catheter joint 12 of an ultrasonic catheter;
a locking member, which is installed in the accommodating cavity 1401 and can move along the radial direction of the accommodating cavity 1401, so as to clamp the catheter adapter 12 to prevent the movement along the axial direction of the accommodating cavity 1401; and the number of the first and second groups,
a control member that controls the movement of the lock member 14 in the radial direction.
The accommodation cavity 1401 is used for accommodating the catheter joint 12; in order to meet the above requirements, the inner diameter of the accommodating cavity 1401 is larger than or equal to the outer diameter of the catheter adapter 12;
the cross-sectional shape of the accommodating cavity 1401 can be various shapes under the premise of accommodating the catheter joint 12; most preferably, the cross section of the accommodating cavity 1401 is arranged corresponding to the cross section shape of the catheter adapter 12, and after the catheter adapter 12 is inserted into the accommodating cavity 1401, the outer wall of the catheter adapter 12 abuts against the inner wall of the accommodating cavity 1401.
After the catheter connector 12 is inserted into (butted with) the accommodating cavity 1401, the locking piece moves along the radial direction, and the tail end of the locking piece is contacted with the outer wall of the catheter connector 12; the locking member may lock the catheter hub 12 by applying radial pressure to the catheter hub 12; the catheter connector 12 can also be locked in a matching clamping mode; the form of the mating snap-fit is that the outer wall of the catheter hub 12 is provided with a radial hole 1402 opposite the locking member, and the locking member can partially enter the radial hole 1402 to lock the catheter hub 12 against movement in the axial direction.
The control member is capable of communicating with the lock member, and the operator controls the lock member to move in the radial direction through the control member.
The catheter adapter 12 is mounted at one end of the ultrasound catheter.
In one embodiment, two sets of said locking members are provided, oppositely disposed, to lock said catheter adapter 12 from opposite sides thereof; it should be understood that the present invention is not limited to the number of latches.
The locking piece comprises a one-way tenon card 8; a radial hole 1402 is formed in the cavity wall of the accommodating cavity 1401, the one-way tenon card 8 is assembled in the radial hole 1402, and the one-way tenon card 8 moves along the length direction of the radial hole 1402 under the driving of the control part; the tail end of the one-way tenon card 8 comprises a locking surface 801 and a first inclined guiding surface 802 which are mutually deviated; the first inclined guiding surface 802 is located at one side facing the opening of the accommodating cavity 1401; the side surface of the catheter joint 12 is provided with a limiting groove 1201 corresponding to the one-way tenon card 8.
A first return device is further arranged and comprises a first guide column 10 and a first return spring 4; the first guide post 10 is radially mounted on the outer surface of the accommodating cavity 1401; the one-way tenon card 8 comprises a key elastic sheet 6 at the front end of the one-way tenon card, and the key elastic sheet 6 is movably arranged on the first guide column 10 through a first guide hole 601 formed in the key elastic sheet 6; a limiting piece 11 is mounted at the top end of the first guide post 10, and the first return spring 4 is sleeved on the first guide post 10 and is positioned between the limiting piece 11 and the key elastic piece 6; the first return device pushes the locking piece in the radial direction, so that the tail end of the one-way tenon card 8 enters the accommodating cavity 1401.
The control piece comprises a joint key 2 and a second return device; the connector key 2 is along what radial direction was mobilizable install in outside the holding chamber 1401, the connector key 2 includes the transmission arm 201, the end of transmission arm 201 is including the inclined plane 204 that leans out, the button shell fragment 6 is relative inclined plane 204 is equipped with the second and leads inclined plane 602, inclined plane 204 with the second leads inclined plane 602 and contacts.
The second return device comprises a second guide post 9 and a second return spring 3, and the second guide post 9 is mounted on the outer surface of the accommodating cavity 1401 along the radial direction; the joint key 2 is movably sleeved on the second guide post 9 through a second guide hole 202 formed in the joint key, and the second return spring 3 is sleeved on the second guide post 9 and is located between the outer surface of the accommodating cavity 1401 and the joint key 2.
It should be understood that the first return spring 4 and the second return spring 3 function to return the components connected thereto to the initial positions, and those skilled in the art can replace the first return spring 4 and the second return spring 3 with other elastic mechanisms to achieve the same function.
The working principle of the locking and clamping structure is as follows:
(1) when the conduit joint 12 is inserted, the insertion force of the conduit joint 12 acts on the first inclined guide surface 802 of the one-way tenon card 8, and the insertion force is converted and decomposed into a component force which can enable the key elastic sheet 6 to move upwards along the limiting cylinder 10 through the first inclined guide surface 802. The key elastic sheet 6 resists the pressure of the first return spring 4, moves upwards along the limiting cylinder, and drives the one-way tenon card 8 to gradually withdraw from the accommodating cavity 1401 until the top end of the one-way tenon card 8 is tangent to the catheter connector 12. When the catheter joint 12 is inserted in place, the position of the one-way tenon card 8 is the position of the limiting groove 1201 corresponding to the catheter joint 12; the key elastic sheet 6 is reset under the action of the first return spring 4 and enters the limiting groove 1201, and the locking surface 801 of the one-way tenon card 8 is abutted against the limiting surface of the limiting groove 1201 to limit the catheter joint 12.
(2) When the conduit connector 12 is pulled out and the connector button 2 is pressed, the transmission arm 201 of the connector button 2 moves towards the button spring 6, the end of the transmission arm 201 presses the second guiding inclined surface 602 of the button spring 6, and the pressure applied by the transmission arm 201 is decomposed into a component force which can make the button spring 6 move upwards along the first guiding column 10 through the second guiding inclined surface 602. The key elastic sheet 6 resists the pressure of the first return spring 4, moves upwards along the first guide column 10, and drives the one-way tenon card 8 to gradually exit from the inner cavity of the accommodating cavity 1401. When the one-way tenon card 8 is withdrawn from the inner cavity of the accommodating cavity 1401, the whole plugging mechanism is in a relaxed state, and the catheter connector 12 can be freely inserted into or removed from the accommodating cavity 1401. When the connector key 2 is reset under the pressure of the second return spring 3, the pressure applied by the connector key 2 to the key elastic sheet 6 is released, the key elastic sheet 6 is reset under the pressure of the first return spring 4, and the tail end of the one-way tenon card 8 enters the accommodating cavity 1401 again.
Further, in order to increase the locking force of the locking member to the catheter structure 12, the outer surface of the accommodating cavity 1401 is provided with two first guide posts 10 which are parallel to each other; the key elastic sheet 6 is movably arranged on the two first guide columns 10 through the two first guide holes 601 which are oppositely arranged; the two first return springs 4 and the two limiting pieces 11 are correspondingly arranged on the two first guide posts 10 respectively; the tail end of the one-way tenon card 8 is connected to the middle position of the lower end face of the key elastic sheet 6.
In a specific embodiment, one control member is provided, and two transmission arms 201 are symmetrically connected to two sides of the joint key 2 of the control member; the tail ends of the two transmission arms 201 are respectively contacted with the second guiding inclined surfaces 602 of the two locking pieces; the control part can simultaneously control the two locking parts to move along the radial direction.
The two integrated designs of the transmission arm 201 have the following problems: when the false touch occurs, the two one-way tenon clamps 8 can simultaneously withdraw from the limiting groove 1201, and risks exist during use; in order to solve the above problem, in another embodiment, two sets of control members are respectively provided, and respectively control the two locking members to move along the radial direction; the two groups of control parts operate independently and respectively control the movement of the two locking parts, and an operator can contact and lock the catheter joint 12 only by pressing the two control parts simultaneously, so that the probability of unlocking caused by mistaken touch is reduced.
Preferably, the plugging device of the intravascular ultrasound retraction system comprises a base 1, wherein the locking portion 14 is mounted on the base 1, and a plurality of mounting positions are formed on the base 1 and used for mounting the base 1 on the main body of the retraction unit.
In order to limit the travel of the connector key 2, the locking portion 14 is provided with a lug 7.
In order to improve the fluency of the movement of the joint key 2, a plurality of balls are movably mounted on the inner wall of the second guide hole 202, the balls are in contact with the second guide post 9, and the original sliding friction between the second guide post 9 and the inner wall of the second guide hole 202 is changed into the rolling friction between the second guide post 9, the balls and the inner wall of the second guide hole 202, so that the movement of the joint key 2 along the second guide post 9 is smoother.
The invention also provides a detection device which is arranged in the plugging device of the intravascular ultrasonic retraction system and is used for detecting whether the catheter connector 12 and the plugging device are assembled in place or not.
Preferably, an installation groove is formed in the inner side wall of the accommodating cavity 1401, and the detection device is installed in the installation groove.
In the first embodiment, the detecting device is a non-contact sensing device, which is used to detect whether the conduit connector 12 is assembled in place, it should be understood that a person skilled in the art may use various non-contact sensing devices, such as an infrared sensing device, an acoustic wave sensing device, and a radio frequency sensing device, to achieve the above technical effects; further, in the present embodiment, an RFID device is preferably used, and the RFID device employs a Radio Frequency Identification technology (RFID), which is one of automatic Identification technologies, and performs non-contact bidirectional data communication in a Radio Frequency manner, and reads and writes a recording medium (an electronic tag or a Radio Frequency card) in a Radio Frequency manner, so as to achieve the purpose of identifying an object and exchanging data, which is considered as one of the most promising information technologies in the 21 st century; the RFID device can be used for judging whether the catheter adapter 12 is assembled in place; an electronic tag can be attached to the catheter connector 12 at a relative position, and the RFID device can also identify the electronic tag to determine the specific type of the inserted ultrasound catheter and other information.
In a second specific embodiment, as shown in fig. 11, the detection device employs a touch sensing device; the contact type sensing equipment is a detection switch 5, the detection switch 5 comprises a shift lever 13, and the free end of the shift lever 13 enters the accommodating cavity 1401; when the conduit coupling 12 is fitted in place, the free end of the lever 13 is displaced into contact with the contacts by the squeezing of the conduit coupling 12, the detection switch 5 is triggered, and the system recognizes that the conduit coupling 12 is fitted in place.
In a third particular embodiment, the non-contact sensing device is used in conjunction with the contact sensing device.
Further, a displacement sensor (not shown) is provided, which is disposed on the locking portion 14 and configured to detect a displacement of the key dome 6 moving along the first guide post 10. The tail end of the one-way tenon card 8 is connected to the middle position of the lower end face of the key elastic sheet 6, so that the displacement of the key elastic sheet 6 is equal to the displacement of the one-way tenon card 8, the length of the locking face 801 which can insert the one-way tenon card 8 into the limiting groove 1201 is set to be D, the displacement of the key elastic sheet 6 is detected by a displacement sensor, the catheter connector is determined to be in a completely locked state, an incompletely locked state or an unlocked state through the displacement, for example, the displacement of the key elastic sheet 6 is detected to be zero, the one-way tenon card 8 is completely inserted into the limiting groove 1201, when the displacement of the key elastic sheet 6 is detected to be 1/2D or 1/3D and the like and does not exceed D, the one-way tenon card 8 is not completely inserted into the limiting groove 1201 at the moment, the catheter connector 12 is in the incompletely locked state, intravascular ultrasonic detection is not required, and the operation of the device is stopped, the reason why the one-way tenon card 8 is not completely inserted into the limiting groove 1201 is checked, and may be that the one-way tenon card 8 is misaligned with the limiting groove 1201 or the one-way tenon card 8 is clamped on the groove wall of the limiting groove 1201. And after the problem is solved, the one-way tenon card 8 is completely inserted into the limiting groove 1201, and then the intravascular ultrasonic detection is started.
Further, a pressure sensor (not shown) is arranged, the pressure sensor is connected with one end of the first return spring 4, the pressure sensor detects the elasticity of the first return spring 4 to acquire the compression amount of the first return spring 4 and further acquire displacement information of the key elastic sheet 6, the pressure sensor and/or the displacement sensor can be used for monitoring whether the conduit joint 12 is in a completely locked state, an incompletely locked state or an unlocked state, and the condition that the equipment runs when the conduit joint 12 is in the incompletely locked state or the unlocked state is avoided.
As shown in fig. 12 and 13, the present invention further provides a retraction unit, including the insertion and extraction device of the intravascular ultrasound retraction system, including the detection device.
The withdrawing unit comprises a catheter access mechanism, a rotary motion mechanism, a withdrawing mode switching mechanism and an operation panel. The plugging device is arranged on the catheter access mechanism, the functions of radial imaging and longitudinal imaging of the catheter in the blood vessel are realized through the combination of the mechanisms, the system connecting cable is connected with the cart host to transmit signals, the data of catheter imaging are transmitted to the image processing system, and the image data are displayed on the display after being processed.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description is only for the purpose of describing particular embodiments of the present invention, and is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A plugging device of an intravascular ultrasound retraction system, characterized by comprising a locking portion (14), the locking portion (14) comprising:
the ultrasonic catheter comprises an accommodating cavity (1401), wherein one end of the accommodating cavity (1401) is opened, and the accommodating cavity (1401) is used for accommodating a catheter joint (12) of an ultrasonic catheter;
a locking member mounted to the receiving chamber (1401), the locking member being movable in a radial direction of the receiving chamber (1401) to thereby lock the catheter adapter (12) against movement in an axial direction of the receiving chamber (1401); and the number of the first and second groups,
a control member that controls movement of the lock member in the radial direction;
the locking piece comprises a one-way tenon card (8); a radial hole (1402) is formed in the cavity wall of the accommodating cavity (1401), the one-way tenon card (8) is assembled in the radial hole (1402), and the one-way tenon card (8) moves along the length direction of the radial hole (1402) under the driving of the control part; the tail end of the one-way tenon card (8) comprises a locking surface (801) and a first inclined guiding surface (802) which are mutually deviated; the first guide slope (802) is positioned at one side facing the opening of the accommodating cavity (1401); a limiting groove (1201) is formed in the side face of the catheter joint (12) opposite to the one-way tenon card (8); the one-way tenon card (8) comprises a key elastic sheet (6) at the front end;
the control piece comprises a joint key (2) and a second return device; the joint key (2) is movably mounted outside the accommodating cavity (1401) along the length direction of the second return device, the joint key (2) comprises a transmission arm (201), the tail end of the transmission arm (201) comprises an inclined surface (204) which inclines outwards, the key elastic sheet (6) is provided with a second guide inclined surface (602) opposite to the inclined surface (204), and the inclined surface (204) is contacted with the second guide inclined surface (602);
the first return device is used for pushing the one-way tenon card (8) to move along the radial hole (1402) so as to return the one-way tenon card (8) to lock the catheter connector (12);
the first return device comprises a first guide post (10) and a first return spring (4), and the key elastic sheet (6) is movably arranged on the first guide post (10); the first return spring (4) is sleeved on the first guide column (10), and one end of the first return spring is abutted against the key elastic sheet (6); the other end of the return spring (4) is connected with a pressure sensor.
2. The device of claim 1, comprising two sets of said locking members disposed opposite each other, and adapted to lock said catheter adapter (12) from opposite sides thereof.
3. The device of claim 2, wherein the first guide post (10) is radially mounted to an outer surface of the receiving lumen (1401); the key elastic sheet (6) is movably arranged on the first guide column (10) through a first guide hole (601) formed in the key elastic sheet; a limiting piece (11) is mounted at the top end of the first guide column (10), and the first return spring (4) is sleeved on the first guide column (10) and is positioned between the limiting piece (11) and the key elastic piece (6); the first return device pushes the locking piece along the radial direction, so that the tail end of the one-way tenon card (8) enters the accommodating cavity (1401).
4. The device for inserting and pulling an intravascular ultrasound retraction system according to claim 3, wherein the outer surface of the accommodation cavity (1401) is provided with two first guide posts (10) which are parallel to each other; the key elastic sheet (6) is movably arranged on the two first guide columns (10) through the two first guide holes (601) which are oppositely arranged; the two first return springs (4) and the two limiting pieces (11) are respectively and correspondingly arranged on the two first guide columns (10); the tail end of the one-way tenon card (8) is connected to the middle position of the lower end face of the key elastic sheet (6).
5. The device of claim 4, wherein the second return device comprises a second guide post (9) and a second return spring (3), the second guide post (9) being mounted to an outer surface of the receiving cavity (1401) in the radial direction; the joint key (2) is movably sleeved on the second guide column (9) through a second guide hole (202) formed in the joint key, and the second return spring (3) is sleeved on the second guide column (9) and is positioned between the outer surface of the accommodating cavity (1401) and the joint key (2).
6. The device for inserting and pulling the intravascular ultrasound retraction system according to claim 5, wherein a plurality of balls are movably mounted on the inner wall of the second guide hole (202), and the balls are in contact with the second guide post (9).
7. The device of claim 5, wherein two sets of said control members are provided for controlling the movement of said locking members in said radial direction.
8. The device for inserting and pulling an intravascular ultrasound retraction system according to claim 5, wherein one control member is provided, and two transmission arms (201) are symmetrically connected to both sides of the connector button (2) of the control member; the tail ends of the two transmission arms (201) are respectively contacted with the second guide inclined surfaces (602) of the two locking pieces; the control part can simultaneously control the two locking parts to move along the radial direction.
9. The pull device of an intravascular ultrasound retraction system according to claim 8, wherein the locking portion (14) is provided with a lug (7) relative to the actuator arm (201) to limit the range of motion of the actuator arm (201).
10. A retraction unit comprising the pluggable device of the intravascular ultrasound retraction system of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210094238.XA CN114601501A (en) | 2021-09-28 | 2021-09-28 | Plugging device and withdrawing unit of intravascular ultrasonic withdrawing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210094238.XA CN114601501A (en) | 2021-09-28 | 2021-09-28 | Plugging device and withdrawing unit of intravascular ultrasonic withdrawing system |
| CN202111142437.5A CN113576536B (en) | 2021-09-28 | 2021-09-28 | Plugging device and withdrawing unit of intravascular ultrasonic withdrawing system |
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| CN202111142437.5A Division CN113576536B (en) | 2021-09-28 | 2021-09-28 | Plugging device and withdrawing unit of intravascular ultrasonic withdrawing system |
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| CN114176643B (en) * | 2022-02-17 | 2022-04-26 | 天津恒宇医疗科技有限公司 | Intravascular ultrasonic imaging withdrawing device |
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| CN113576536A (en) | 2021-11-02 |
| CN113576536B (en) | 2022-03-08 |
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