CN110464906B - Puncture device with positioning and adjusting structure for chemotherapy - Google Patents
Puncture device with positioning and adjusting structure for chemotherapy Download PDFInfo
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- CN110464906B CN110464906B CN201910795867.3A CN201910795867A CN110464906B CN 110464906 B CN110464906 B CN 110464906B CN 201910795867 A CN201910795867 A CN 201910795867A CN 110464906 B CN110464906 B CN 110464906B
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- 238000002512 chemotherapy Methods 0.000 title claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 59
- 238000001125 extrusion Methods 0.000 claims abstract description 39
- 238000001179 sorption measurement Methods 0.000 claims abstract description 27
- 230000033001 locomotion Effects 0.000 claims description 7
- 238000001802 infusion Methods 0.000 abstract description 23
- 239000003814 drug Substances 0.000 description 4
- 206010028980 Neoplasm Diseases 0.000 description 3
- 201000011510 cancer Diseases 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 210000004489 deciduous teeth Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003828 downregulation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
- A61M5/16813—Flow controllers by controlling the degree of opening of the flow line
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1585—Needle inserters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1586—Holding accessories for holding infusion needles on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1587—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body suitable for being connected to an infusion line after insertion into a patient
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a puncture device with a positioning and adjusting structure for chemotherapy, which solves the problems that a puncture needle cannot be effectively positioned and the infusion speed is not easy to adjust in the prior art, can be stably adsorbed on the skin of a patient, can position the puncture needle and is convenient to stably puncture the puncture needle into an infusion port; the infusion speed can be conveniently adjusted, so that the infusion speed is within the bearing range of a patient; the technical scheme is as follows: the adsorption device comprises an adsorption seat, wherein the adsorption seat is provided with a pressing mechanism, and negative pressure can be generated in the adsorption seat through the pressing mechanism so as to realize adsorption; a rotary positioning mechanism for positioning the puncture needle is arranged above the adsorption seat, the rotary positioning mechanism is provided with a movable extrusion mechanism, and the movable extrusion mechanism extrudes or loosens the puncture needle to adjust the transfusion speed.
Description
Technical Field
The invention relates to the field of medical auxiliary instruments, in particular to a puncture device with a positioning and adjusting structure for chemotherapy.
Background
Chemotherapy is a method for treating cancer by chemical drugs, which injects chemical drugs into the affected part of a patient through a chemotherapy device, kills cancer cells by the chemical drugs, and can kill normal cells although the cancer cells can be killed by the chemotherapy, so that a series of complications will appear on the body of the patient after the chemotherapy, and a puncture device for the chemotherapy is a device for puncturing the affected part of the patient on the chemotherapy device.
The inventor finds that the existing puncture device for chemotherapy has the following problems when in use:
1) when the existing puncture device for chemotherapy is used, a worker generally needs to press the device by hands so as to prevent the device from being difficultly and stably adsorbed on an affected part of a patient due to the tension of the patient, so that the worker is not facilitated to use the puncture device;
2) when the existing puncture device for chemotherapy is used, the puncture needle is inconvenient to position, so that the puncture needle cannot be stably inserted into an infusion port during chemotherapy, the chemotherapy is not facilitated, and the pain of a patient is increased;
3) the existing puncture device for chemotherapy can not control the speed of chemotherapy when in use, is used for the difference of the physique of a patient, can bear the speed of transfusion when in chemotherapy, and has the advantages of different speeds, higher transfusion speed if the patient with smaller bearing capacity is in chemotherapy, increased pain of the patient and easy injury to the patient.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the puncture device with the positioning and adjusting structure for chemotherapy, which can be stably adsorbed on the skin of a patient, can position a puncture needle and is convenient for stably puncturing the puncture needle into an infusion port; the infusion speed can be conveniently adjusted to be within the bearing range of the patient.
The invention adopts the following technical scheme:
a chemotherapy puncture device with a positioning and adjusting structure comprises an adsorption seat, wherein the adsorption seat is provided with a pressing mechanism, and negative pressure can be generated in the adsorption seat through the pressing mechanism to realize adsorption;
a rotary positioning mechanism for positioning the puncture needle is arranged above the adsorption seat, the rotary positioning mechanism is provided with a movable extrusion mechanism, and the movable extrusion mechanism extrudes or loosens the puncture needle to adjust the transfusion speed.
Furthermore, the pressing mechanism comprises a pressing plate and a piston, and one end of the pressing plate penetrates through the adsorption seat and is rotatably connected with the end part of the piston; the adsorption seat is internally provided with a piston hole for bearing the piston.
Furthermore, the diameter of the piston hole is larger than that of the piston, a rubber pad is arranged at the bottom of the piston, and the rubber pad is tightly attached to the inner wall of the piston hole.
Furthermore, the rotary positioning mechanism comprises two telescopic mechanisms which are symmetrically arranged, a connecting block is arranged at the top of each telescopic mechanism, a gear and rack mechanism is arranged at the bottom of each telescopic mechanism, and rotary motion is converted into linear motion through the telescopic mechanisms and the gear and rack mechanisms to clamp and position the puncture needle.
Furthermore, telescopic machanism includes screw rod and sleeve, screw rod one end and sleeve threaded connection, and the other end links to each other with gear rack mechanism.
Furthermore, the gear rack bar mechanism comprises a gear fixedly connected with the screw and a rack bar meshed with the gear, and a positioning clip is arranged at the end part of the rack bar.
Furthermore, the movable extrusion mechanism comprises an adjusting rod, a fixing block and a movable extrusion block, wherein the fixing block and the movable extrusion block are arranged oppositely, one end of the movable extrusion block is provided with an inclined plane, the tail end of the adjusting rod is in contact with the inclined plane, and the adjusting rod can drive the movable extrusion block to be close to or far away from the fixing block.
Furthermore, the torsion spring is established to the body of rod upper segment outside cover of adjusting the pole, the body of rod hypomere of adjusting the pole sets up the locking sub-tooth, the guiding hole is vertically seted up to connecting block eccentric position, and the guiding hole lateral wall has the female tooth of locking with the meshing of locking sub-tooth.
Furthermore, a hole groove is transversely formed in the movable extrusion block, and the inner wall of the hole groove of the movable extrusion block is connected with a connecting rod arranged in the connecting block through a spring.
Furthermore, the tail end of the adjusting rod is spherical.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention drives the piston to move upwards by pressing the pressing plate so as to generate negative pressure in the piston hole to suck partial skin of a patient into the piston hole, thereby achieving the purpose of stably adsorbing the puncture device on the skin of the patient;
2. according to the invention, the sleeve is driven to move downwards through the downward movement of the connecting block, so that the screw rod rotates, the screw rod drives the gear and the toothed bar to move, the two positioning clips are close to each other, the puncture needle is positioned, and the puncture needle can be conveniently and stably punctured into an infusion port;
3. according to the invention, the locking sub-teeth and the locking female teeth are staggered by rotating the adjusting rod, so that the meshing connection between the locking sub-teeth and the locking female teeth is disconnected, then the adjusting rod is pulled upwards or pressed downwards, the ball at the lower end of the adjusting rod slides in the chute through the arrangement of the inner side inclined plane of the movable extrusion block, and the movable extrusion block is extruded at different positions, so that the distance between the movable extrusion block and the fixed block is adjusted, and further the extrusion of the infusion hose on the puncture needle is realized, so that the purpose of adjusting the infusion speed is achieved, and the infusion speed can be conveniently adjusted to be within the bearing range of a patient.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a front view of a first embodiment of the present invention;
FIG. 2 is a side view of a first embodiment of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
FIG. 4 is a cross-sectional view of a connecting ring and pressure plate in accordance with an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a first embodiment of the present invention;
FIG. 6 is an enlarged view of the structure at B in FIG. 5 according to the present invention;
FIG. 7 is an enlarged view of the structure of FIG. 5 at C according to the present invention;
FIG. 8 is a cross-sectional view of an adjustment lever and a through hole according to a first embodiment of the present invention;
fig. 9 is a schematic view of a connection structure of an adjusting lever and a movable pressing block according to a first embodiment of the present invention.
Wherein, 1, a support ring; 2. a connecting ring; 3. pressing a plate; 4. a screw; 5. a sleeve; 6. connecting blocks; 7. adjusting a rod; 8. a fixed block; 9. a movable extrusion block; 10. puncturing needle; 11. a positioning clip; 12. a piston; 13. a piston bore; 14. a first mounting groove; 15. a limiting groove; 16. a rack bar; 17. a gear; 18. a guide hole; 19. a torsion spring; 20. a locking sub-tooth; 21. locking female teeth; 22. a hole groove; 23. a spring; 24. a connecting rod; 25. a second mounting groove; 26. a chute.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in this application, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.
The terms "mounted", "connected", "fixed", and the like in the present application should be understood broadly, and for example, the terms "mounted", "connected", and "fixed" may be fixedly connected, detachably connected, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.
As introduced in the background art, the puncture needle in the prior art cannot be positioned effectively, and the infusion speed is not easy to adjust, and in order to solve the technical problems, the invention provides the puncture device for chemotherapy with a positioning and adjusting structure.
The first embodiment is as follows:
the present invention is described in detail below with reference to fig. 1 to 9, and specifically, the structure is as follows:
the embodiment provides a chemotherapy puncture device with a positioning and adjusting structure, which comprises an adsorption seat, a pressing mechanism, a rotary positioning mechanism and a movable extrusion mechanism, wherein the pressing mechanism can generate negative pressure in the adsorption seat to realize adsorption; the rotary positioning mechanism is used for positioning the puncture needle 10, and the movable pressing mechanism is used for adjusting the transfusion speed by pressing or releasing the puncture needle 10.
In order to facilitate the adsorption on the human body without causing damage to the human body, the adsorption base is configured to be an annular structure, that is, the adsorption base includes a support ring 1 and a connection ring 2, as shown in fig. 1 and 2, the connection ring 2 is fixed above the support ring 1, and the inner diameter of the connection ring 2 is greater than the inner diameter of the support ring 1.
The two pressing mechanisms are symmetrically arranged about the center of the support ring 1, each pressing mechanism comprises a pressing plate 3 and a piston 12, and one end of each pressing plate 3 penetrates through the connecting ring 2 to be rotatably connected with the end of the piston 12. In this embodiment, as shown in fig. 3 and 4, the pressing plate 3 is composed of an arc-shaped panel and a plurality of straight rods, the straight rods are fixed at one ends of the arc-shaped panel away from the arc shape, the straight rods penetrate through the preset grooves of the connecting ring 2, and the straight rods are hinged to the upper end of the piston 12, so that the pressing plate 3 can be conveniently pressed by a worker through the arc-shaped panel, and the straight rods are tilted through the hinged ends of the pressing plate 3 and the connecting ring 2, so that the piston 12 is driven to move upwards.
As shown in fig. 5 and 6, the rotary positioning mechanism includes a connecting block 6, and two symmetrically installed telescoping mechanisms and a gear rack bar mechanism, the connecting block 6 is fixed above the telescoping mechanisms, and the gear rack bar mechanism is connected below the connecting block 6. The shape and structure of the connecting block 6 are not limited as long as the puncture needle 10 and the movable pressing mechanism can be supported. In order to adapt to the shape of the adsorption seat, the rotary motion is converted into linear motion through the telescopic mechanism and the gear rack mechanism, so that the puncture needle is clamped and positioned.
In this embodiment, the connecting block 6 is configured as a disc-shaped structure having a protrusion at the lower part, the protrusion is cylindrical, and a cavity is formed inside the protrusion. The center of the connecting block 6 is provided with a through hole for the puncture needle 10 to pass through, and the diameter of the through hole is only smaller than the maximum diameter of the upper end of the puncture needle 10.
The telescopic mechanism comprises a screw rod 4 and a sleeve 5, the gear rack mechanism comprises a gear 17 and a rack 16, the upper end of the screw rod 4 is in threaded connection with the sleeve 5, the gear 17 is installed at the lower end of the screw rod 4, and the gear 17 is meshed with the rack 16. Further, a first mounting groove 14 is formed in the support ring 1, two sides of the first mounting groove 14 are horizontally provided with a limiting groove 15, and the limiting groove 15 on the inner side (close to one side of the center of the support ring 1) penetrates through the inner wall of the support ring 1. A toothed bar 16 is clamped in the limiting groove 15, the toothed bar 16 penetrates through the inner side of the support ring 1, and a positioning clip 11 is installed at the end part of the toothed bar 16. The gear 17 key-type is connected in the screw rod 4 lower extreme, and the screw rod 4 is terminal to be connected in the bottom of first mounting groove 14 through the bearing, and the upper end of screw rod 4 runs through the upper surface of support ring 1 and is connected with sleeve 5. When the screw 4 and the sleeve 5 move relatively, the screw 4 is driven to rotate, so that the support ring 1 and the connecting block 6 are close to or far away from each other.
As shown in fig. 7-9, the movable squeezing mechanism includes an adjusting rod 7, a torsion spring 19, a connecting rod 24, a fixed block 8 and a movable squeezing block 9, the bottom of the adjusting rod 7 is spherical, the top of the adjusting rod is provided with a stop, and a locking sub-tooth 20 is arranged on the outer side of a section of the adjusting rod 7 near the sphere. A guide hole 18 is longitudinally formed in the connecting block 6, which deviates from the center of the connecting block by a certain distance, and the stop block of the adjusting rod 7 is larger than the inner diameter of the guide hole 18, so that the whole adjusting rod 7 is prevented from entering the guide hole 18; the inner wall of guiding hole 18 is provided with the female tooth 21 of locking with the locking of locking secondary tooth matched with, and guiding hole 18 below and protruding cavity pass through second mounting groove 25 intercommunication, and the inner wall of second mounting groove 25 is fixed with the connecting rod 24 of horizontal arrangement.
Further, the female tooth 21 of locking is equidistant distributes in the inboard lower extreme of guiding hole 18, and the longitudinal section of the female tooth 21 of locking and the locking secondary tooth 20 is equilateral triangle, is convenient for block in between the female tooth 21 of different locking through the locking secondary tooth 20 for adjust the position of pole 7 and be fixed.
The fixed block 8 and the movable extrusion block 9 are symmetrically arranged in a cavity of a protruding part of the connecting block 6, and after the puncture needle 10 is arranged on the connecting block 6, the fixed block 8 and the movable extrusion block 9 are positioned on two sides of the puncture needle 10. A hole groove 22 is transversely formed in the movable extrusion block 9, and the inside of the hole groove 22 is connected with a connecting rod 24 through a spring 23; one end of the movable extrusion block 9 far away from the fixed block 8 is provided with an inclined surface, and the inclined surface is provided with a sliding groove 26 along the longitudinal direction. The inside of guiding hole 18 is connected with the upper end of adjusting pole 7 through torsional spring 19, and torsional spring 19 is between locking tooth 20 and dog. The adjusting rod 7 penetrates through the guide hole 18 and extends into the second mounting groove 25, and the lower end of the adjusting rod 7 is clamped in the sliding groove 26.
The stability of the ball at the lower end of the adjusting rod 7 for extruding the movable extrusion block 9 can be increased by sliding the ball at the lower end of the adjusting rod 7 in the sliding groove 26, so that the position adjustment of the movable extrusion block 9 is facilitated. The movable extrusion block 9 is close to the fixed block 8 to extrude the infusion tube on the puncture needle 10, so that the delivery speed of the liquid medicine can be adjusted, the position of the puncture needle 10 can be limited by the tail ends of the fixed block 8 and the movable extrusion block 9, the puncture needle 10 is prevented from moving upwards, and the puncture needle 10 cannot be punctured into an infusion port implanted under the skin of an affected part of a patient.
The working principle of the embodiment is as follows:
with pjncture needle 10 card in the through-hole of connecting block 6, paste support ring 1 in the infusion port that the patient was implanted subcutaneously, and the staff presses the arc panel of 2 clamp plates 3 respectively through two fingers on one hand, makes the straight rod end perk of clamp plate 3 to drive piston 12 and shift up, so that produce the negative pressure in the piston hole 13, thereby adsorb partial skin at the lower extreme opening of piston hole 13, and then can be with the stable absorption of this piercing depth on patient's skin.
The sleeve 5 is driven to move downwards by pressing the connecting block 6, and the inner side of the sleeve 5 is in threaded connection with the outer side of the screw rod 4, so that the screw rod 4 is driven to rotate when the sleeve 5 moves downwards, and further the gear 17 is driven to rotate, and the gear 17 drives the toothed bar 16 to move by meshing with the toothed bar 16, so that the two positioning clips 11 are close to each other; the utility model discloses a puncture needle, including locating clip 11, connecting block 6, locating clip 11, locating clip 10, locating clip 11 is fixed a position, when locating clip 11 is being close to each other, the moving down of connecting block 6 will drive pjncture needle 10 to move down, when pjncture needle 10 moves down to between the locating clip 11, it is spacing to be fixed a position checkpost 11 for when pjncture needle 10 continues to move down, can stable prick the infusion harbor that the patient was implanted under the skin (locating clip 11 just presss from both sides tight puncture needle 10 when pjncture needle 10 pricks the infusion harbor that the patient was implanted under the skin.
When a patient's body becomes poor and needs chemotherapy, it is necessary to control the rate of chemotherapy to enable the patient to survive, in the following manner:
through the dog of rotation regulation pole 7 for torsional spring 19 holds power, and makes locking secondary tooth 20 stagger and then the disengagement connection with locking primary tooth 21, pushes down regulation pole 7 again for adjust the pole 7 ball-end and slide in the spout 26 on activity extrusion piece 9 inclined plane, so that extrude activity extrusion piece 9, thereby can make activity extrusion piece 9 be close to fixed block 8. Then, the adjusting lever 7 is rotated reversely, so that the torsion spring 19 releases the elastic potential energy and the locking sub-tooth 20 is engaged with the locking female tooth 21 at the current position, thereby ensuring the position stability of the adjusting lever 7. The infusion tube at the upper end of the puncture needle 10 is extruded by the fixed block 8 and the movable extrusion block 9 so as to achieve the purpose of adjusting the infusion speed of the puncture device, and the speed of chemotherapy is adjusted by adjusting the infusion speed, so that the chemotherapy is favorably carried out on a patient.
When the infusion speed needs to be increased, the locking sub-teeth 20 and the locking female teeth 21 can be meshed and connected through the mode, the adjusting rod 7 is pulled upwards, the movable extrusion block 9 and the connecting rod 24 are close to each other through the spring 23, the movable extrusion block 9 is far away from the fixed block 8, the extrusion of the fixed block 8 and the movable extrusion block 9 on the infusion tube is reduced, the infusion speed is accelerated, and the efficiency of chemotherapy is improved.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (3)
1. The chemotherapy puncture device with the positioning and adjusting structure is characterized by comprising an adsorption seat, wherein the adsorption seat is provided with a pressing mechanism, and negative pressure can be generated in the adsorption seat through the pressing mechanism so as to realize adsorption;
a rotary positioning mechanism for positioning the puncture needle is arranged above the adsorption seat, and the rotary positioning mechanism is provided with a movable extrusion mechanism which can adjust the transfusion speed by extruding or loosening the puncture needle;
the rotary positioning mechanism comprises two telescopic mechanisms which are symmetrically arranged, a connecting block is arranged at the top of each telescopic mechanism, a gear and rack mechanism is arranged at the bottom of each telescopic mechanism, and rotary motion is converted into linear motion through the telescopic mechanisms and the gear and rack mechanisms to clamp and position the puncture needle; the telescopic mechanism comprises a screw and a sleeve, one end of the screw is in threaded connection with the sleeve, and the other end of the screw is connected with the gear rack mechanism;
the pressing mechanism comprises a pressing plate and a piston, and one end of the pressing plate penetrates through the adsorption seat to be rotatably connected with the end part of the piston; a piston hole for bearing the piston is formed in the adsorption seat;
the gear rack bar mechanism comprises a gear fixedly connected with the screw and a rack bar meshed with the gear, and a positioning clip is arranged at the end part of the rack bar;
the movable extrusion mechanism comprises an adjusting rod, a fixed block and a movable extrusion block, wherein the fixed block and the movable extrusion block are oppositely arranged; a torsion spring is sleeved outside the upper section of the rod body of the adjusting rod, a locking sub-tooth is arranged on the lower section of the rod body of the adjusting rod, a guide hole is longitudinally formed in the eccentric position of the connecting block, and a locking female tooth meshed with the locking sub-tooth is arranged on the side wall of the guide hole; the movable extrusion block is internally provided with a hole groove along the transverse direction, and the inner wall of the hole groove of the movable extrusion block is connected with a connecting rod arranged in the connecting block through a spring.
2. The chemotherapy puncturing device with a positioning and adjusting structure, as claimed in claim 1, wherein the diameter of the piston hole is larger than the diameter of the piston, and the bottom of the piston has a rubber pad which is tightly attached to the inner wall of the piston hole.
3. The chemotherapy puncturing device with a positioning adjustment structure, as claimed in claim 1, wherein the adjusting rod has a spherical end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910795867.3A CN110464906B (en) | 2019-08-27 | 2019-08-27 | Puncture device with positioning and adjusting structure for chemotherapy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910795867.3A CN110464906B (en) | 2019-08-27 | 2019-08-27 | Puncture device with positioning and adjusting structure for chemotherapy |
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| CN110464906A CN110464906A (en) | 2019-11-19 |
| CN110464906B true CN110464906B (en) | 2021-07-20 |
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| CN201910795867.3A Expired - Fee Related CN110464906B (en) | 2019-08-27 | 2019-08-27 | Puncture device with positioning and adjusting structure for chemotherapy |
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| CN111481771B (en) * | 2020-04-09 | 2022-03-04 | 中南大学湘雅医院 | Infusion port butterfly wing needle puncture protection sleeve spare of adjustable size |
| CN111759427B (en) * | 2020-07-28 | 2023-05-09 | 南阳市中心医院 | Pericardium puncture liquid pumping device for department of cardiology |
| CN112717606B (en) * | 2020-12-07 | 2022-07-05 | 山东中航天业科技有限公司 | Flue gas condensation, dust removal and demisting device for sintering machine |
| CN113288372B (en) * | 2021-07-02 | 2022-11-08 | 优升巨力(北京)科技有限公司 | Cardiovascular and cerebrovascular neck thoracic nerve vascular plexus positioning negative pressure blood stasis removing device |
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| CN105561438A (en) * | 2015-12-25 | 2016-05-11 | 重庆科技学院 | Intelligent transfusion monitoring system and monitoring method thereof |
| CN206334195U (en) * | 2016-07-09 | 2017-07-18 | 张永雪 | Local skin disease speed is cured therapeutic equipment |
| CN208678071U (en) * | 2017-12-13 | 2019-04-02 | 吉林大学 | A kind of medical Urology Surgery fast adjuster of drop |
| CN109602481A (en) * | 2018-12-05 | 2019-04-12 | 山东大学第二医院 | A kind of chemotherapy of tumors puncture positioning device |
| CN109620611B (en) * | 2019-01-17 | 2021-03-23 | 郑州大学第一附属医院 | Thyroid surgery auxiliary device |
| CN109806092B (en) * | 2019-02-14 | 2020-09-18 | 孙华君 | Multi-functional internal medicine nursing support |
-
2019
- 2019-08-27 CN CN201910795867.3A patent/CN110464906B/en not_active Expired - Fee Related
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| CN110464906A (en) | 2019-11-19 |
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