CN111839808B - Thrombus gun - Google Patents
Thrombus gun Download PDFInfo
- Publication number
- CN111839808B CN111839808B CN202010913935.4A CN202010913935A CN111839808B CN 111839808 B CN111839808 B CN 111839808B CN 202010913935 A CN202010913935 A CN 202010913935A CN 111839808 B CN111839808 B CN 111839808B
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- Prior art keywords
- shell
- rack
- gear
- ratchet wheel
- linkage shaft
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- 208000007536 Thrombosis Diseases 0.000 title claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims description 7
- 210000003462 vein Anatomy 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000010378 Pulmonary Embolism Diseases 0.000 description 1
- 206010047249 Venous thrombosis Diseases 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 210000000748 cardiovascular system Anatomy 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000013152 interventional procedure Methods 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 210000004197 pelvis Anatomy 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 210000001631 vena cava inferior Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/01—Filters implantable into blood vessels
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- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to a thrombus gun, which comprises a shell, an inner pipe rack, an outer pipe rack, an inner pipe gear set, an outer pipe gear set, a first external tooth inner ratchet wheel and a toothed trigger, wherein the inner pipe rack and the outer pipe rack are arranged in the shell, the inner pipe gear set, the first external tooth inner ratchet wheel and the toothed trigger comprise a trigger body and a trigger rack arranged on the trigger body, the inner pipe gear set comprises an inner pipe gear and a second external tooth inner ratchet wheel, the first external tooth inner ratchet wheel and the second external tooth inner ratchet wheel respectively comprise tooth rings with meshed teeth on the outer circumferential surface and ratchet teeth on the inner circumferential surface, pawls positioned on the inner sides of the tooth rings, the outer pipe gear set comprises an outer pipe gear, a driven gear and an intermediate gear, a first linkage shaft is respectively connected with the pawls of the first external tooth inner ratchet wheel and the inner pipe gear through connecting keys, the second linkage shaft is fixedly connected with or in a key connection with the pawls of the second external tooth inner ratchet wheel, and the end part of the first linkage shaft penetrates through a perforation on the shell. The thrombus gun of the invention is easy to control the feeding speed and the feeding amount of the catheter.
Description
Technical Field
The invention relates to a thrombus treatment device, in particular to a thrombus gun.
Background
Thrombus is a small block of blood flow formed on the surface of the inside surface of a cardiovascular system vessel where it is exfoliated or repaired. And pulmonary arterial emboli mostly originate from thrombi in the deep veins of the lower extremities and the longitudinal veins of the pelvis. To prevent and reduce the occurrence of pulmonary embolism, treatment often employs a method of braiding a lower endoluminal screen within the inferior vena cava. Mobin-Uddin umbrella filter system proposed in 1967, which requires an incision for intravenous infusion. With the development of filters and interventional procedures today, the filters need only be catheterized under small local incisions during treatment. Currently, interventional departments mostly use hand-push catheters to intervene in veins, so that a filter screen is placed in the veins and venous thrombosis is filtered. The existing treatment devices are mostly manual, and medical staff need to intervene the catheter from the incision into the vein and push it slowly. In the operation process, the treatment equipment needs to connect and fix two catheters of the inner tube (filter screen) and the outer tube (rubber tube), and the two catheters have different movement requirements after entering the vein. Because the existing equipment is relatively crude, and the catheter is manually pushed during intervention, the operation mode is time-consuming and labor-consuming, and operators are not easy to accurately control the feeding speed and the single feeding amount of the catheter, so that the experience requirements of multiple operators are high.
In view of the above-mentioned drawbacks, the present inventors have actively studied and innovated to create a thrombus gun of a novel structure, which is more industrially useful.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a thrombus gun which is easy to control the feeding speed and the feeding amount of a catheter.
The thrombus gun comprises a shell, an inner pipe rack and an outer pipe rack which are arranged in the shell, an inner pipe gear set for driving the inner pipe rack to slide, an outer pipe gear set for driving the outer pipe rack to slide, a first external tooth inner ratchet wheel for driving the inner pipe gear set and the outer pipe gear set to run, and a toothed trigger for driving the external tooth inner ratchet wheel to rotate, wherein the toothed trigger comprises a trigger body which is arranged on the shell in a sliding manner, and a trigger rack which is arranged on the trigger body and is meshed with the first external tooth inner ratchet wheel, the inner pipe gear set comprises an inner pipe gear which is meshed with the inner pipe rack and is coaxially arranged with the first external tooth inner ratchet wheel through a first linkage shaft, a second external tooth inner ratchet wheel which is meshed with the inner pipe gear through a meshing tooth, the first external tooth inner ratchet wheel and the second external tooth inner ratchet wheel respectively comprise a tooth ring with meshing teeth on the outer circumferential surface and ratchet teeth on the inner circumferential surface, pawls which are positioned on the inner sides of the tooth ring and correspond to the ratchet teeth, the outer tube gear set comprises an outer tube gear meshed with the outer tube rack, a driven gear coaxial with the second outer tooth inner ratchet wheel through a second linkage, and an intermediate gear meshed with the outer tube gear and the driven gear respectively, wherein a connecting key is arranged on the peripheral surface of the first linkage shaft, the first linkage shaft is respectively connected with a pawl of the first outer tooth inner ratchet wheel and the inner tube gear through the connecting key, the second linkage shaft is fixedly connected or in key connection with the pawl of the second outer tooth inner ratchet wheel, the end parts of the first linkage shaft and the second linkage shaft are both arranged on the shell, the end parts of the first linkage shaft penetrate through a through hole on the shell and protrude out of the outer surface of the shell, one end of the shell is provided with an inner tube transmission hole for the inner tube to enter and exit, and the other end of the shell is provided with an outer tube transmission hole for the outer tube to enter and exit.
Furthermore, the thrombus gun of the invention is characterized in that the shell is fixedly provided with the gear box, and both ends of the first linkage shaft and the second linkage shaft are arranged on the gear box.
Furthermore, in the thrombus gun disclosed by the invention, the mounting plate is further arranged between the first linkage shaft and the second linkage shaft, the end parts of the first linkage shaft and the second linkage shaft penetrate through the through holes in the mounting plate, and the main shaft of the intermediate gear is arranged on the mounting plate.
Furthermore, the thrombus gun of the invention is characterized in that the shell is provided with the output hole, the end part of the first linkage shaft penetrates through the output hole and is connected with the button, an elastic piece is arranged between the button and the shell, one end of the elastic piece is connected with the button, and the other end of the elastic piece is connected with the shell.
Furthermore, the thrombus gun disclosed by the invention is characterized in that the shell is provided with the accommodating groove, the output hole is positioned in the accommodating groove, the bottom surface of the accommodating groove is provided with the mounting tube which is arranged around the output hole, and the elastic piece is a spring sleeved on the mounting tube.
Furthermore, the inner side surface of the middle hole of the inner tube gear is provided with the annular flange, the end surface of the annular flange, which is close to one side of the connecting key, is provided with the key groove with the bottom surface being an inclined surface, and the end surfaces of the guide blocks positioned at the two sides of the key groove are also inclined surfaces which are matched with the end surfaces of the connecting key.
Further, the thrombus gun is characterized in that a rack limiting shell is fixedly arranged in the shell, and an inner pipe rack guide hole and an outer pipe rack guide hole which extend from one end of the shell to the other end of the shell are respectively formed in the rack limiting shell.
Furthermore, the thrombus gun disclosed by the invention is characterized in that the inner side surface of the inner tube rack guide hole and the inner side surface of the outer tube rack guide hole are respectively provided with a guide rail, and the inner tube rack and the outer tube rack are respectively provided with guide grooves matched with the guide rails.
Furthermore, the thrombus gun is characterized in that an inner pipe connecting piece is arranged at the end part of the inner pipe rack, an outer pipe connecting piece is arranged at the end part of the outer pipe rack, and a handle is further arranged on the inner pipe connecting piece.
Furthermore, the thrombus gun disclosed by the invention is characterized in that the inner side surface of the shell is provided with the sliding rail, and the toothed trigger is provided with the sliding plate or the sliding rod which is matched with the sliding rail.
By means of the scheme, the invention has at least the following advantages: according to the thrombus gun disclosed by the invention, the inner pipe rack, the outer pipe rack, the inner pipe gear set, the outer pipe gear set, the first external tooth inner ratchet wheel and other parts are arranged, so that the reverse feeding of the inner pipe and the outer pipe is realized, and compared with the existing manual feeding mode, the thrombus gun is controllable in feeding amount and feeding speed and convenient to operate, and therefore, the requirement on experience of operators is lower.
In summary, the thrombus gun of the present invention is easy to control the catheter feeding speed and feeding amount.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a perspective view of a thrombus gun, with buttons not shown;
Fig. 2 is a perspective view of the front half shell;
Fig. 3 is a perspective view of the rear half shell;
FIG. 4 is another perspective view of the thrombus gun, with the front half-shell not shown;
FIG. 5 is a perspective view of the internal structure of the thrombus gun;
FIG. 6 is another perspective view of the internal structure of the thrombus gun;
FIG. 7 is a perspective view of the inner tube gear set, the outer tube gear set, and the first externally toothed inner ratchet assembly;
FIG. 8 is a disassembled view of the inner tube gear set, the outer tube gear set, and the first externally toothed inner ratchet assembly;
fig. 9 is a perspective view of a first linkage shaft;
FIG. 10 is a perspective view of the inner tube gear set, the outer tube gear set, the first externally toothed inner ratchet wheel and the toothed wrench assembly;
FIG. 11 is a perspective view of the rack bar limiter housing;
FIG. 12 is a perspective view of the toothed trigger;
FIG. 13 is a perspective view of the internal rack;
FIG. 14 is a perspective view of the first external-tooth internal ratchet or the second external-tooth internal ratchet;
fig. 15 is a perspective view of the inner tube gear.
The gear box comprises a shell 1, an inner pipe rack 2, an outer pipe rack 3, an inner pipe gear set 4, an outer pipe gear set 5, a first outer tooth inner ratchet 6, a toothed trigger 7, a trigger body 8, a trigger rack 9, a first linkage shaft 10, an inner pipe gear 11, a second outer tooth inner ratchet 12, ratchet teeth 13, a toothed ring 14, a pawl 15, an outer pipe gear 16, a second linkage 17, a driven gear 18, an intermediate gear 19, a connecting key 20, an inner pipe transmission hole 21, an outer pipe transmission hole 22, a handle 23, a gear box 24, a mounting plate 25, an output hole 26, a button 27, an elastic member 28, a containing groove 29, a mounting pipe 30, an annular flange 31, a key groove 32, a guide block 33, a rack limiting shell 34, an inner pipe rack guide hole 35, an outer pipe rack guide hole 36, a guide rail 37, a guide groove 38, an inner pipe connection 39, an outer pipe connection 40, a slide 41, a slide 42 and a slide bar 43.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
Referring to fig. 1 to 15, a thrombus gun according to a preferred embodiment of the present invention comprises a housing 1, an inner tube rack 2 and an outer tube rack 3 provided in the housing, an inner tube gear set 4 driving the inner tube rack to slide, an outer tube gear set 5 driving the outer tube rack to slide, a first external tooth inner ratchet 6 driving the inner tube gear set and the outer tube gear set to operate, and a toothed trigger 7 driving the external tooth inner ratchet to rotate, the toothed trigger comprising a trigger body 8 slidably provided on the housing, a trigger rack 9 provided on the trigger body and engaged with the first external tooth inner ratchet, the inner tube gear set comprising an inner tube gear 11 engaged with the inner tube rack and coaxially provided with the first external tooth inner ratchet through a first coupling shaft 10, a second external tooth inner ratchet 12 engaged with the inner tube gear, the first external tooth inner ratchet wheel and the second external tooth inner ratchet wheel both comprise a toothed ring 14 with meshed teeth on the outer circumferential surface and ratchet teeth 13 on the inner circumferential surface, pawls 15 which are positioned on the inner side of the toothed ring and correspond to the ratchet teeth, the outer tube gear set comprises an outer tube gear 16 meshed with the outer tube rack, a driven gear 18 coaxial with the second external tooth inner ratchet wheel through a second linkage pump 17, and intermediate gears 19 meshed with the outer tube gear and the driven gear respectively, a connecting key 20 is arranged on the circumferential surface of the first linkage shaft, the first linkage shaft is respectively connected with the pawls of the first external tooth inner ratchet wheel and the inner tube gear through the connecting key, the second linkage shaft is fixedly connected or keyed with the pawls of the second external tooth inner ratchet wheel, the end parts of the first linkage shaft and the second linkage shaft are both arranged on the shell, the end part of the first linkage shaft penetrates through the through holes on the shell and protrudes out of the outer surface of the shell, one end of the shell is provided with an inner tube transmission hole 21 for the inner tube to pass in and out, the other end of the housing is provided with an outer tube transfer hole 22 for the outer tube to pass in and out.
According to the thrombus gun disclosed by the invention, the inner pipe rack, the outer pipe rack, the inner pipe gear set, the outer pipe gear set, the first external tooth inner ratchet wheel and other parts are arranged, so that the reverse feeding of the inner pipe and the outer pipe is realized, and compared with the existing manual feeding mode, the thrombus gun is controllable in feeding amount and feeding speed and convenient to operate, and therefore, the requirement on experience of operators is lower. When the ratchet rack is specifically used, an operator connects the outer pipe and the inner pipe with the connecting piece on the outer pipe rack and the inner pipe rack respectively, after connection, the operator moves the trigger rack inwards in a mode of pressing the trigger body, so that the ratchet wheel in the first external tooth meshed with the trigger rack is driven to rotate, particularly, the toothed ring of the ratchet wheel in the first external tooth rotates, along with the rotation of the toothed ring of the ratchet wheel in the first external tooth, a pawl arranged on the inner side of the toothed ring rotates under the driving of ratchet teeth on the inner peripheral surface of the toothed ring, and then the first linkage shaft connected with the pawl key is driven to rotate, and the inner pipe gear coaxial with the inner pipe gear in the first external tooth rotates under the driving of the first linkage shaft, so that the inner pipe rack meshed with the inner pipe gear is driven to move and the inner pipe connected with the inner pipe rack is driven to move along the track on the shell. Meanwhile, the inner pipe gear drives the second external tooth inner ratchet wheel meshed with the inner pipe gear to rotate, a second linkage shaft fixedly connected or keyed with a pawl of the second external tooth inner ratchet wheel is similar to the first external tooth inner ratchet wheel, the second linkage shaft fixedly connected or keyed with the pawl of the second external tooth inner ratchet wheel follows the second external tooth inner ratchet wheel to rotate and drives a driven wheel fixedly connected or keyed with the second external tooth inner ratchet wheel to rotate, after the driven wheel rotates, the driven wheel drives the intermediate gear and an outer pipe gear meshed with the intermediate gear to rotate, further the outer pipe rack meshed with the outer pipe gear is driven to slide, and finally the outer pipe connected with the outer pipe rack is retracted along a guide rail on the shell. Due to the arrangement of the intermediate gear, the inner tube gear set and the outer tube gear set differ by one gear number including the second external tooth inner ratchet wheel, and when the inner tube gear set and the outer tube gear set are implemented, the inner tube gear set and the outer tube gear set can differ by an odd number of gear numbers, so that the rotation directions of the inner tube gear and the outer tube gear are opposite, the inner tube rack and the outer tube rack are driven to move along opposite directions, and finally the inner tube feeding and the outer tube retreating are realized. When the trigger rack moves to the limit position, an operator can move the trigger rack outwards until the trigger rack returns to the original position, at the moment, because the toothed ring of the ratchet wheel in the first external tooth reversely rotates according to the previous direction, the pawl in the first external tooth does not rotate, and therefore the inner pipe and the outer pipe do not move, and after the trigger body returns to the original position, the operator can continuously press the wrench body so as to repeat the actions. When the inner tube forward travel reaches a limit, the operator can press the first linkage shaft inwards to separate the connecting key on the first linkage shaft from the key groove on the inner tube gear. After falling, an operator can pull the inner pipe rack through the handle 23 at the end part of the inner pipe rack, so that the inner pipe rack drives the inner pipe to retract, in the retracting process, the inner pipe gear rotates in the opposite direction when the inner pipe advances under the driving of the inner pipe rack, meanwhile, the second external tooth inner ratchet wheel rotates in the opposite direction under the driving of the inner pipe gear, and the pawl of the second external tooth inner ratchet wheel does not rotate due to opposite steering, so that the driven gear coaxial with the pawl does not rotate, and the outer pipe does not move, so that the purposes of keeping the outer pipe motionless and retracting the inner pipe are realized.
Preferably, in the thrombus gun of the present invention, the gear case 24 is fixedly provided in the housing, and both ends of the first and second coupling shafts are provided on the gear case.
The gear box realizes the installation and protection function of gear components such as the inner pipe gear set, the outer pipe gear set and the like.
Preferably, in the thrombus gun of the present invention, a mounting plate 25 is further provided between the first and second coupling shafts, and the ends of the first and second coupling shafts pass through holes in the mounting plate, and the main shaft of the idler gear is provided on the mounting plate.
The installation of the intermediate gear is realized through the arrangement of the mounting plate, and in practical implementation, the mounting plate is triangular, and the main shafts of the first linkage shaft, the second linkage shaft and the intermediate gear are respectively arranged at three vertexes of the triangular mounting plate.
Preferably, the thrombus gun of the present invention is provided with an output hole 26 on the housing, the end of the first linkage shaft passes through the output hole and is connected with a button 27, an elastic member 28 is further provided between the button and the housing, one end of the elastic member is connected with the button, and the other end of the elastic member is connected with the housing.
Preferably, the thrombus gun of the present invention has a housing provided with a receiving groove 29, an output hole is disposed in the receiving groove, a mounting tube 30 is disposed around the output hole on the bottom surface of the receiving groove, and the elastic member is a spring sleeved on the mounting tube.
The arrangement of the button and the elastic piece realizes the clutch of the first linkage shaft and the inner tube gear. Under normal state, the button drives the first universal driving axle to move outwards under the elastic force effect of elastic component outside until first universal driving axle matches with the keyway of inner tube gear, and during the concrete implementation, the outer end that inner tube gear detected sets up the stopper to realize spacing to first universal driving axle, first universal driving axle gets into the keyway under the elastic force of elastic component, until its tip and this stopper contact. When the first linkage shaft and the inner tube gear are required to be separated, an operator only needs to press the button inwards and drive the first linkage shaft to move inwards until the connecting key on the first linkage shaft is separated from the key groove on the inner tube gear.
Preferably, in the thrombus gun of the present invention, the annular flange 31 is provided on the inner side surface of the middle hole of the inner tube gear, the key groove 32 with the bottom surface being an inclined surface is provided on the end surface of the annular flange on the side close to the connecting key, and the end surfaces of the guide blocks 33 positioned on both sides of the key groove are also inclined surfaces adapted to the end surfaces of the connecting key.
The guiding function to the connecting piece has been realized to the inclined plane of guide block terminal surface, like this, no matter the angle entering inner tube gear mesopore of first universal driving axle, in case the connecting key terminal surface and the guide block terminal surface contact on the first universal driving axle, the connecting key just can get into in the keyway smoothly under the guide of guide block inclined plane, and the limiting displacement to the connecting piece has been realized to the inclined plane of keyway bottom simultaneously.
Preferably, in the thrombus gun of the present invention, a rack limiting case 34 is fixedly provided in the housing, and an inner pipe rack guide hole 35 and an outer pipe rack guide hole 36 extending from one end of the housing to the other end are respectively provided in the rack limiting case.
Preferably, the thrombus gun of the invention is provided with the guide rail 37 on the inner side surface of the inner pipe rack guide hole and the inner side surface of the outer pipe rack guide hole, and the inner pipe rack and the outer pipe rack are respectively provided with the guide groove 38 which is matched with the guide rail.
The arrangement of the rack limiting shell, the inner pipe guide hole, the outer pipe guide hole, the guide rail and the guide groove achieves the aim that the inner pipe rack and the outer pipe rack can be slidably arranged on the shell.
Preferably, in the thrombus gun of the present invention, the end of the inner tube rack is provided with an inner tube connector 39, the end of the outer tube rack is provided with an outer tube connector 40, and the inner tube connector is further provided with a handle 23.
Preferably, the thrombus gun of the invention is provided with a sliding rail 41 on the inner side surface of the shell, and a sliding plate 42 or a sliding rod 43 matched with the sliding rail is arranged on the toothed trigger.
The sliding rail, the sliding plate or the sliding rod is arranged, so that an operator can only slide along the direction of the sliding rail when pulling the toothed trigger, and the trigger rack is always meshed with the meshing teeth of the ratchet wheel in the first external tooth. Wherein, the casing comprises first half shell and back half shell.
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.
Furthermore, the foregoing is only a preferred embodiment of the present invention, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. Meanwhile, it should be understood that although the present disclosure describes embodiments, not every embodiment contains only one independent technical solution, and the description is merely for clarity, and those skilled in the art should consider the disclosure as a whole, and the technical solutions in the examples may be combined appropriately to form other embodiments that can be understood by those skilled in the art.
Claims (8)
1. A thrombus gun, characterized in that: the device comprises a shell (1), an inner pipe rack (2) and an outer pipe rack (3) which are arranged in the shell, an inner pipe gear set (4) for driving the inner pipe rack to slide, an outer pipe gear set (5) for driving the outer pipe rack to slide, a first external tooth inner ratchet wheel (6) for driving the inner pipe gear set and the outer pipe gear set to run, and a toothed trigger (7) for driving the external tooth inner ratchet wheel to rotate, wherein the toothed trigger comprises a trigger body (8) which is slidably arranged on the shell, a trigger rack (9) which is arranged on the trigger body and is meshed with the first external tooth inner ratchet wheel, the inner pipe gear set comprises an inner pipe gear (11) which is meshed with the inner pipe rack and is coaxially arranged with the first external tooth inner ratchet wheel through a first linkage shaft (10), a second external tooth inner ratchet wheel (12) which is meshed with the inner pipe gear through a meshing tooth, the first external tooth inner ratchet wheel is respectively meshed with the inner pipe gear (19) through a second linkage shaft, the first external tooth inner ratchet wheel is respectively meshed with the driven gear (19) of the outer pipe rack, the first external tooth inner ratchet wheel is respectively provided with meshing teeth (13) on the outer circumference, the inner tooth ring (15) which is provided with meshing teeth corresponding to the ratchet teeth on the ratchet wheel, the inner tooth inner ratchet wheel is arranged on the inner tooth is meshed with the ratchet wheel through the inner tooth, the inner gear is meshed with the outer gear is respectively, the outer gear is meshed with the outer gear rack, and the inner gear rack is respectively, the second linkage shaft is fixedly connected or in key connection with a pawl of the second external-tooth internal ratchet wheel, the end parts of the first linkage shaft and the second linkage shaft are both arranged on the shell, the end part of the first linkage shaft penetrates through a perforation on the shell and protrudes out of the outer surface of the shell, one end of the shell is provided with an inner pipe transmission hole (21) for an inner pipe to enter and exit, and the other end of the shell is provided with an outer pipe transmission hole (22) for an outer pipe to enter and exit;
A rack limiting shell (34) is fixedly arranged in the shell, and an inner pipe rack guide hole (35) and an outer pipe rack guide hole (36) which extend from one end of the shell to the other end of the shell are respectively arranged on the rack limiting shell;
Guide rails (37) are arranged on the inner side face of the inner pipe rack guide hole and the inner side face of the outer pipe rack guide hole, and guide grooves (38) matched with the guide rails are respectively arranged on the inner pipe rack and the outer pipe rack.
2. The thrombus gun of claim 1 wherein: a gear box (24) is fixedly arranged in the shell, and two ends of the first linkage shaft and the second linkage shaft are arranged on the gear box.
3. The thrombus gun of claim 2 wherein: and a mounting plate (25) is further arranged between the first linkage shaft and the second linkage shaft, the end parts of the first linkage shaft and the second linkage shaft penetrate through holes in the mounting plate, and the main shaft of the intermediate gear is arranged on the mounting plate.
4. The thrombus gun of claim 1 wherein: the shell is provided with an output hole (26), the end part of the first linkage shaft penetrates through the output hole and is connected with a button (27), an elastic piece (28) is further arranged between the button and the shell, one end of the elastic piece is connected with the button, and the other end of the elastic piece is connected with the shell.
5. The thrombus gun of claim 4 wherein: the shell is provided with a containing groove (29), the output hole is positioned in the containing groove, the bottom surface of the containing groove is provided with a mounting pipe (30) arranged around the output hole, and the elastic piece is a spring sleeved on the mounting pipe.
6. The thrombus gun of claim 4 wherein: an annular flange (31) is arranged on the inner side surface of the middle hole of the inner tube gear, a key groove (32) with an inclined surface is arranged on the end surface of the annular flange, which is close to one side of the connecting key, and the end surfaces of guide blocks (33) positioned on two sides of the key groove are also inclined surfaces which are matched with the end surfaces of the connecting key.
7. The thrombus gun of claim 1 wherein: an inner pipe connecting piece (39) is arranged at the end part of the inner pipe rack, an outer pipe connecting piece (40) is arranged at the end part of the outer pipe rack, and a handle (23) is further arranged on the inner pipe connecting piece.
8. The thrombus gun of claim 1 wherein: the inner side surface of the shell is provided with a sliding rail (41), and the toothed trigger is provided with a sliding plate (42) or a sliding rod (43) which is matched with the sliding rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010913935.4A CN111839808B (en) | 2020-09-03 | 2020-09-03 | Thrombus gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010913935.4A CN111839808B (en) | 2020-09-03 | 2020-09-03 | Thrombus gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111839808A CN111839808A (en) | 2020-10-30 |
| CN111839808B true CN111839808B (en) | 2024-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010913935.4A Active CN111839808B (en) | 2020-09-03 | 2020-09-03 | Thrombus gun |
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| CN (1) | CN111839808B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440417B (en) * | 2021-07-09 | 2022-06-24 | 深圳市人民医院 | Liquid food feeding device for diagnosis and treatment nursing of critically ill neonate |
| CN115089269B (en) * | 2022-06-09 | 2024-04-09 | 清华大学 | Rotary cutting type blood vessel volume reduction equipment |
| CN115501420B (en) * | 2022-10-21 | 2023-12-22 | 苏州心锐医疗科技有限公司 | Medical liquid conveying system |
Citations (1)
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