CN111588947A - Injection device for stopping bleeding of cervical vertebral canal venous plexus - Google Patents
Injection device for stopping bleeding of cervical vertebral canal venous plexus Download PDFInfo
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- CN111588947A CN111588947A CN202010451916.4A CN202010451916A CN111588947A CN 111588947 A CN111588947 A CN 111588947A CN 202010451916 A CN202010451916 A CN 202010451916A CN 111588947 A CN111588947 A CN 111588947A
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- 238000002347 injection Methods 0.000 title claims abstract description 24
- 239000007924 injection Substances 0.000 title claims abstract description 24
- 230000000740 bleeding effect Effects 0.000 title abstract description 20
- 229920000159 gelatin Polymers 0.000 claims abstract description 71
- 239000008273 gelatin Substances 0.000 claims abstract description 71
- 108010010803 Gelatin Proteins 0.000 claims abstract description 70
- 235000019322 gelatine Nutrition 0.000 claims abstract description 70
- 235000011852 gelatine desserts Nutrition 0.000 claims abstract description 70
- 239000012530 fluid Substances 0.000 claims abstract description 38
- 230000023597 hemostasis Effects 0.000 claims abstract description 27
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims 4
- 230000006978 adaptation Effects 0.000 claims 2
- 125000003003 spiro group Chemical group 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 3
- 208000032843 Hemorrhage Diseases 0.000 description 19
- 230000000694 effects Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 230000002439 hemostatic effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
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- YMHOBZXQZVXHBM-UHFFFAOYSA-N 2,5-dimethoxy-4-bromophenethylamine Chemical compound COC1=CC(CCN)=C(OC)C=C1Br YMHOBZXQZVXHBM-UHFFFAOYSA-N 0.000 description 1
- 208000032984 Intraoperative Complications Diseases 0.000 description 1
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- 230000017531 blood circulation Effects 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000010523 cascade reaction Methods 0.000 description 1
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- 238000007907 direct compression Methods 0.000 description 1
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- 238000001179 sorption measurement Methods 0.000 description 1
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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
- A61M5/178—Syringes
- A61M5/30—Syringes for injection by jet action, without needle, e.g. for use with replaceable ampoules or carpules
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
-
- 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
- A61M5/178—Syringes
- A61M5/31—Details
-
- 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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Hematology (AREA)
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- Surgery (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Materials For Medical Uses (AREA)
Abstract
The invention relates to an injection device for hemostasis of cervical vertebral canal venous plexus, which belongs to the technical field of medical tools and comprises an inner tube filled with fluid gelatin and an outer tube filled with gelatin sponge, wherein the inner tube is fixedly connected in the outer tube, a first piston is arranged in the inner tube, and a second piston is arranged in a cavity between the outer tube and the inner tube; the outer shell is connected to the left end of the outer tube, a power output end of the first horizontal pushing device extends into the inner tube and is connected with the first piston, and a power output end of the second horizontal pushing device extends into a cavity between the outer tube and the inner tube and is connected with the second piston. Through the structure, the injection device for stopping bleeding of the cervical vertebral canal venous plexus provided by the invention can sequentially push out the fluid gelatin and the gelatin sponge so as to quickly and effectively stop bleeding of common typical parts of the cervical vertebral canal venous plexus, and can also control the amount of the fluid gelatin flowing out, reduce waste and have stronger practicability.
Description
Technical Field
The invention belongs to the technical field of medical tools, and particularly relates to an injection device for stopping bleeding of a cervical vertebral canal venous plexus.
Background
In anterior cervical disc removal fusion (ACDF), bleeding from the venous plexus of the spinal canal is a troublesome intraoperative complication due to its large bleeding volume and difficulty in direct compression hemostasis. Because of the narrow operating field and high requirement for decompression, how to safely and rapidly control the epidural venous plexus bleeding during decompression remains a problem faced by spinal surgeons to date.
At present, some doctors use fluid gelatin when stopping bleeding at the position, but because the cervical vertebral canal venous plexus has the characteristics of quick bleeding and large amount, the blood coagulation cascade reaction is difficult to smoothly carry out under the condition of no physical compression and adsorption, the difficulty of stopping bleeding is still large, and the amount of the fluid gelatin is difficult to control, thereby being easy to cause waste; some doctors also use the gelatin sponge to stop bleeding, and the gelatin sponge can play a certain role in stopping bleeding by virtue of the high swelling performance of the gelatin sponge when meeting water, but the gelatin sponge cannot directly contact the conical canal venous plexus which is blocked by a bone structure to bleed, so that the hemostatic effect is poor.
Disclosure of Invention
The invention provides an injection device for hemostasis of a cervical vertebral canal venous plexus, which is used for solving the technical problems that the hemostasis of the cervical vertebral canal venous plexus is difficult and the quantity of fluid gelatin is difficult to control during the hemostasis.
The invention is realized by the following technical scheme: an injection device for hemostasis of the cervical spinal venous plexus comprising:
the device comprises an inner pipe and an outer pipe, wherein the inner pipe is filled with fluid gelatin, the outer pipe is filled with gelatin sponge, the inner pipe is fixedly connected in the outer pipe, the right end of the inner pipe is flush with the right end of the outer pipe, a first piston is arranged in the inner pipe, and a second piston is arranged in a cavity between the outer pipe and the inner pipe;
the outer shell is connected with the outer tube, a power output end of the first horizontal pushing device extends into the inner tube and is connected with the first piston to push the fluid gelatin out from the right end of the inner tube, and a power output end of the second horizontal pushing device extends into a cavity between the outer tube and the inner tube and is connected with the second piston to push the gelatin sponge out from the right end of the outer tube.
Further, in order to better implement the present invention, the first pushing device includes a first motor, a first lead screw, a first nut, and a first push rod, the first motor is installed in the housing, the first lead screw is connected to a rotating shaft of the first motor through a first coupling, the first nut is screwed to the first lead screw, the first push rod is connected to an outer wall of the first nut, a first support plate for supporting the first lead screw is disposed on an inner wall of the housing, and a right end of the first push rod extends into the inner tube and is connected to the first piston.
Further, in order to better implement the present invention, the second pushing device includes a second motor, a second lead screw, a second nut and a second push rod, the second motor is installed in the housing, the second lead screw is connected to a rotating shaft of the second motor through a second coupling, the second nut is screwed on the second lead screw, the second push rod is connected to an outer wall of the second nut, a second support plate for supporting the second lead screw is further provided on an inner wall of the housing, and a right end of the second push rod extends into a cavity between the outer tube and the inner tube.
Further, in order to better implement the present invention, the electric vehicle further includes a handle installed at the left end of the housing, a battery is installed in the handle, a first switch and a second switch are installed on the outer wall of the handle, the first motor is electrically connected with the battery through a first wire and the first switch is electrically connected in the first wire, the second motor is electrically connected with the battery through a second wire and the second switch is electrically connected in the second wire.
Further, in order to better implement the present invention, the cavity in the inner tube is an inner hole, the cavity between the inner tube and the outer tube is an outer hole, the aperture of the inner hole is smaller than that of the outer hole, and the outer wall of the inner tube is attached to the inner wall of the outer tube.
Furthermore, in order to better realize the invention, the invention also comprises a pipe body consisting of a conical pipe and a straight pipe, wherein the conical bottom end of the conical pipe is arranged at the right end of the outer pipe, the straight pipe is arranged at the conical top end of the conical pipe, and the conical pipe, the straight pipe and the outer pipe are coaxially arranged;
the inner wall of the tube body is provided with a convex part, the convex part is provided with a flow passage which penetrates through the left end and the right end of the tube body, and the left end of the flow passage is communicated with the inner hole.
Furthermore, in order to better implement the invention, the device also comprises a cover capable of sealing the right end of the straight pipe, and the cover is screwed on the right end of the straight pipe.
Further, in order to better implement the present invention, a first push plate is disposed at a right end of the first push rod, the first push plate is adapted to the first piston, and a second push plate is disposed at a right end of the second push rod, and the second push plate is adapted to the second piston.
Furthermore, in order to better realize the invention, a conical block matched with the conical pipe is arranged at the right end of the second piston, and an inserting block matched with the straight pipe is arranged at the center of the end face of the right end of the conical block.
Furthermore, in order to better realize the invention, a left mounting lug is arranged on the outer wall of the right end of the shell, a right mounting lug is arranged on the outer wall of the left end of the outer tube, and the left mounting lug and the right mounting lug are locked through screws.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides an injection device for hemostasis of cervical vertebral canal venous plexus, which comprises an inner tube and an outer tube, wherein the inner tube is fixedly connected in the outer tube, the right end of the inner tube is flush with the right end of the outer tube, fluid gelatin is filled in the inner tube, gelatin sponge is filled in the outer tube, a first piston is also arranged in the inner tube in a matching way, a second piston is arranged in a cavity between the outer tube and the inner tube in a matching way, the injection device also comprises a shell, a first horizontal pushing device and a second horizontal pushing device, the shell is arranged in the shell and connected with the left end of the outer tube, the power output end of the first horizontal pushing device extends into the inner tube and is connected with the first piston so as to drive the first piston to move in the inner tube and push out the fluid gelatin in the inner tube from the right end of the inner tube, the power output end of the second horizontal pushing device extends into the cavity between the outer tube and the inner tube and acts on the second piston, through above-mentioned structure, when needs are stanchhed to the cervical vertebra canalis venosus in the operation, the user firstly controls first flat push device in order to push away the right-hand member of right amount of fluid gelatin to the inner tube, can control the second flat push device afterwards in order to push away the right-hand member of outer tube with gelatin sponge, fluid gelatin gets into and carries out the chemistry hemostasis from the clearance of cervical vertebra canalis venosus department, gelatin sponge meets the aqueous expansion of blood and oppresses the clearance of cervical vertebra canalis venosus and the fluid gelatin that reachs this department and plays the physics hemostasis, thus, with the help of the combined action of fluid gelatin and gelatin sponge, then can carry out quick and effectual hemostasis to the bleeding position of cervical vertebra canalis venosus, and, the user can control the volume of the fluid gelatin of the cervical vertebra canalis venosus department that comes out from the inner tube as required, waste is reduced.
Drawings
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of an injection device for hemostasis of the venous plexus of the cervical spine in an embodiment of the present invention;
FIG. 2 is a partially enlarged view of region A in FIG. 1;
fig. 3 is an exploded view of the structure shown in fig. 1.
In the figure:
1-fluid gelatin; 2-inner tube; 3-gelatin sponge; 4-an outer tube; 5-a first piston; 6-a second piston; 7-a housing; 8-a first horizontal pushing device; 81-a first motor; 82-a first lead screw; 83-a first nut; 84-a first push rod; 85-a first coupling; 86-a first support plate; 9-a second horizontal pushing device; 91-a second motor; 92-a second lead screw; 93-a second nut; 94-a second push rod; 95-a second coupling; 96-a second support plate; 10-a handle; 11-a battery; 12-a first switch; 13-a second switch; 14-a cone; 15-straight pipe; 16-a lid; 17-a first push plate; 18-a second pusher plate; 19-a conical block; 20-inserting blocks; 21-left mounting ear; 22-right mounting ear; 23-screw.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1:
the embodiment provides an injection device for hemostasis of a cervical spine canal venous plexus, which is used for quickly and effectively stopping bleeding of a bleeding part of the cervical spine canal venous plexus in an operation so as to reduce the injury to a patient and the occurrence probability of complications in the operation.
As shown in fig. 1 and 3, the injection device for hemostasis of the cervical vertebral canal venous plexus comprises an inner tube 2 and an outer tube 4, wherein the inner tube 2 is fixedly connected in the outer tube 4, at this time, a cavity in the inner tube 2 is an inner hole, a cavity between the inner tube 2 and the outer tube 4 is an outer hole, and the aperture of the outer hole is larger than that of the inner hole, that is, the sectional area of the outer hole is larger than that of the inner hole. The inner tube 2 is filled with fluid gelatin 1, the gelatin sponge 3 is filled in a cavity between the outer tube 4 and the inner tube 2, the inner tube 2 is provided with a first piston 5 which is matched with the inner tube 2, the cavity between the outer tube 4 and the inner tube 2 is provided with a second piston 6, the first piston 5 can push the fluid gelatin 1 in the inner tube 2 out of the right end of the inner tube 2, and the second piston 6 can push the gelatin sponge 3 in the outer hole out of the right end of the outer tube 4.
The gelatin sponge device also comprises a shell 7 and a first horizontal pushing device 8 and a second horizontal pushing device 9 which are arranged in the shell 7, wherein the power output end of the first horizontal pushing device 8 and the power output end of the second horizontal pushing device 9 can both extend out of the right end of the shell 7, the right end of the shell 7 and the left end of the outer pipe 4 are detachably and fixedly connected together, the power output end of the first horizontal pushing device 8 extends into the inner pipe 2 from the left end and acts on the left end of the first piston 5, and it is noted that the fluid gelatin 1 is arranged at the right end of the first piston 5, at the moment, when the first horizontal pushing device 8 operates, the first piston 5 can be driven to push the fluid gelatin 1 out from the right end of the inner pipe 2, the power output end of the second horizontal pushing device 9 extends into the outer hole from the left end and acts on the left end of the second piston 6, the gelatin sponge 3 is arranged at the right end of the second piston 6, and when the second horizontal pushing device 9 operates, the second piston 6 can be driven to push the gelatin 3 from the right end of the outer pipe The right end is pushed out.
By adopting the structure, when the injection device for hemostasis of the venous plexus of the cervical spine provided by the embodiment is used, the outer tube 4 is aligned to the bleeding part of the venous plexus of the cervical spine, the first horizontal pushing device 8 and the second horizontal pushing device 9 are controlled to operate simultaneously to push the fluid gelatin 1 to the right end of the inner tube 2 and push the gelatin sponge 3 to the right end of the outer tube 4, then the first horizontal pushing device 8 is controlled to push out a proper amount of the fluid gelatin 1 from the right end of the inner tube 2, the pushed fluid gelatin 1 enters and is rapidly diffused into the bleeding part of the venous plexus of the cervical spine and acts on the bleeding part to perform chemical hemostasis, when the pushing amount of the fluid gelatin 1 reaches a proper value, the second horizontal pushing device 9 can be controlled to push out the gelatin sponge 3, and due to the controlled connectivity, the gelatin sponge 3 can be seamlessly connected to the flowing fluid gelatin 1, gelatin sponge 3 meets the bloody water and produces the inflation immediately and compresses tightly in order to oppress on the hemorrhage clearance of cervical vertebra canalis venosus plexus and the hemorrhage position and reach the fluid gelatin 1 of bleeding position, from realizing physics hemostasis, like this, with the help of the combined action of fluid gelatin 1 and gelatin sponge 3, then can play quick and effectual hemostasis effect, and medical personnel can control the volume of the fluid gelatin 1 of inner tube 2 that flows out as required moreover, thereby play and reduce extravagant effect.
In this embodiment, as a best mode of the present embodiment, a left mounting ear 21 is disposed on the outer wall of the right end of the outer casing 7, a right mounting ear 22 is disposed on the outer wall of the left end of the outer tube 4, the shape and size of the outer tube 4 are matched with the shape and size of the outer casing 1, when mounting, the outer casing 7 and the outer tube 4 are assembled together, so that the left mounting ear 21 and the right mounting ear 22 are attached, and then the left mounting ear 21 and the right mounting ear 22 are connected together by using a screw 23. With the structure, the outer shell 7 and the outer tube 4 can be quickly disassembled and assembled, and when the gelatin sponge 3 in the outer tube 4 and/or the fluid gelatin 1 in the inner tube 2 are used up, the quick disassembly and assembly and replacement can be carried out.
As a more preferable embodiment of the present embodiment, the inner tube 2 and the outer tube 4 in the present embodiment are both made of transparent materials, such as organic glass or transparent plastics, so that the user can observe the situation in the outer tube 4 and the inner tube 2, and the tube walls of the outer tube 4 and the inner tube 2 are both provided with scale marks (not shown) so that the user can control the amount of the fluid gelatin 1 pushed out of the inner tube 2.
Example 2:
as a specific implementation manner of embodiment 1, in this embodiment, the first horizontal pushing device 8 includes a first motor 81, a first lead screw 82, a first nut 83, and a first push rod 84, where the first motor 81 is installed in the housing 7, a rotating shaft of the first motor 81 faces to the right, the first lead screw 82 is connected to the rotating shaft of the first motor 81 through a first coupling 85, an axial direction of the first lead screw 82 also faces to the right, the first nut 83 is screwed to the first lead screw 82, the first push rod 84 is connected to an outer wall of the first nut 83, a right end of the first push rod 84 extends out of the housing 7 and extends into the inner tube 2 to be connected to the first piston 5, when the first motor 84 operates, the first lead screw 82 can be driven to rotate, the first nut 83 is limited by the first push rod 84 and can only translate on the first lead screw 82, so as to drive the first push rod 84 to translate, thereby achieving the pushing of the first piston 5. Be equipped with first backup pad 86 on the inner wall of above-mentioned shell 7, this first backup pad 86's quantity is two, and the both ends of above-mentioned first lead screw 82 rotate respectively and peg graft on two first backup pads 86, and more preferably, the both ends of above-mentioned first lead screw 82 all are equipped with the circle axle, and the circle axle passes through the bearing to be connected on the first backup pad 86 that corresponds to make the rotation of first lead screw 82 more smooth-going.
With this structure, the movement of the power output end (i.e. the first push rod 84) of the first horizontal pushing device 8 can be effectively controlled, so that the medical staff can control the amount of the fluid gelatin 1 pushed out by the first piston 5 according to the requirement.
Preferably, the second pushing device 9 comprises a second motor 91, a second lead screw 92, a second nut 93 and a second push rod 94, the second motor 91 is installed in the housing 7 with the rotation shaft of the second motor 91 facing to the right, the second lead screw 92 is connected to the rotation shaft of the second motor 91 through a second coupling 95 with the second lead screw 92 facing to the right in the axial direction, the second nut 93 is screwed on the second lead screw 92, the second push rod 94 is connected on the outer wall of the second nut 93, the right end of the second push rod 94 extends out of the outer casing 7 and into the cavity between the inner tube 2 and the outer tube 4 to be connected with the second piston 6, when the second motor 91 is operated, the second screw 92 can be driven to rotate, and the second nut 93 is limited by the second push rod 94 and can only translate on the second screw 92, so as to drive the second push rod 94 to translate, and further realize the pushing of the second piston 6. Be equipped with second backup pad 96 on the inner wall of above-mentioned shell 7, this second backup pad 96's quantity is two, and the both ends of above-mentioned second lead screw 92 rotate respectively and peg graft on two second backup pads 96, and more preferably, the both ends of above-mentioned second lead screw 92 all are equipped with the round bar, and the round bar passes through the bearing to be connected on the second backup pad 96 that corresponds to make second lead screw 92's rotation more smooth-going.
By adopting the structure, the motion of the power output end (namely the second push rod 94) of the second pushing device 9 can be effectively controlled, so that medical personnel can control the gelatin sponge 3 to be pushed out in time according to the needs, and the seamless connection between the gelatin sponge 3 and the fluid gelatin 1 is ensured.
In the present embodiment, as a best mode of the present embodiment, a handle 10 is installed at the left end of the housing 7, specifically, the handle 10 is a shell structure and is installed at the left end of the housing 7 by fastening screws. The battery 11 is installed in the grip 10, and the first switch 12 and the second switch 13 are installed on the outer wall of the grip 10, the first motor 81 is electrically connected to the battery 11 through a first wire and the first switch 12 is electrically connected to the first wire, and the second motor 91 is electrically connected to the battery 11 through a second wire and the second switch 13 is electrically connected to the second wire. During the use, medical personnel hold grab handle 10 to and the opening and closing of first switch 12 and second switch 13 of hand control, and can control the operating condition of first motor 81 and second motor 91, in order to further improve the controllability that is used for the hemostatic injection device of cervical vertebra canalis venus plexus that this embodiment provided, and control effect is better, and then can further reduce extravagantly, and guarantee the seamless connection between gelatin sponge 3 and fluid gelatin 1.
Preferably, the first motor 81 and the second motor 81 in this embodiment are both reversible motors, and can be conveniently retracted after the first push rod 84 and/or the second push rod 94 are pushed out.
Example 3:
in this embodiment, as a more preferable embodiment of the above embodiment, in this embodiment, a taper pipe 14 is further connected to the right end of the outer pipe 4, specifically, a taper bottom end of the taper pipe 14 is connected to the outer pipe 4, and a straight pipe 15 is connected to a taper top end of the taper pipe 14, in this case, the taper pipe 14 is coaxial with the straight pipe 15 and the outer pipe 4, and the taper pipe 14 and the straight pipe 15 constitute a pipe body, and preferably, a connection is made between the taper pipe 14 and the outer pipe 4 and between the taper pipe 14 and the straight pipe 15 by an integral molding method, a convex portion is provided on an inner wall of the pipe body, a flow passage is provided on the convex portion, the flow passage penetrates through a left end wall and a right end wall of the pipe body, and the left end.
As another specific embodiment of this embodiment, the taper pipe 14 in this embodiment is integrally formed with the straight pipe 15 and the outer pipe 4 to form a through pipe, the inner pipe 2 is directly attached to the pipe wall of the through pipe, and the right end of the inner pipe 2 is flush with the right end of the straight pipe 15.
Adopt this kind of structure, the pipe diameter of above-mentioned straight tube 15 is less than the pipe diameter of outer tube 4, like this, then can satisfy different blood flow mouth bores through the 15 pipe diameters of straight tube of design difference, also can make different models with the straight tube 15 of different pipe diameters, and medical personnel can choose for use corresponding model as required to guarantee that fluid gelatin 1 can accurately get into the position that cervical vertebra canalis venosus bleeds. Preferably, the shape and size of the opening at the right end of the straight tube 15 are adapted to the shape and size of the bony structures of the spinal venous plexus at the intervertebral foramina.
Example 4:
in this embodiment, as a more preferable embodiment of embodiment 3, a cap 16 capable of sealing the straight tube 15 is screwed on the right end of the straight tube, and when the straight tube is not used, the cap 16 can be used to prevent the fluid gelatin 1 from leaking, and the contamination of the fluid gelatin 1 and the gelatin sponge 3 by the external environment can be reduced to keep the sanitation. When it is desired to use, the lid 16 is removed.
Example 5:
this embodiment is a better implementation of the above embodiment, in which a first push plate 17 is provided at the right end of the first push rod 84, the first push plate 17 can translate in the inner tube 2, and the first push plate 17 is adapted to the first piston 5, so that the first push rod 84 can better push the first piston 5, a second push plate 18 is provided at the right end of the second push rod 94, the second push plate 18 can translate in the gap between the inner tube 2 and the outer tube 4, and the second push plate 18 is adapted to the second piston 6, so that the second push rod 94 can better push the second piston 6.
Example 6:
in this embodiment, as a more preferable mode of the above embodiment, a tapered block 19 fitted to the tapered pipe 14 is provided at the right end of the second piston 6, the tapered block 19 is allowed to enter the tapered pipe 14, and an insert block 20 is provided at the center of the end face of the right end of the tapered block 19, the insert block 20 is allowed to enter the straight pipe 15. With the structure, when the second push rod 94 pushes the second piston 6 to move towards the right, the direct parts of the second piston 6 acting on the gelatin sponge 3 are the end surface of the conical block 19 and the end surface of the inserting block 20, so that the acting area is smaller, and the gelatin sponge 3 can be smoothly pushed out of the straight pipe 15.
As another embodiment of this embodiment, in this embodiment, the second push rod 94 can be directly used to act on the gelatin sponge 3, and the second push rod 94 can be made into a straight rod structure matching with the straight tube 15.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. An injection device for hemostasis of the venous plexus of the cervical spine, comprising:
the device comprises an inner pipe and an outer pipe, wherein the inner pipe is filled with fluid gelatin, the outer pipe is filled with gelatin sponge, the inner pipe is fixedly connected in the outer pipe, the right end of the inner pipe is flush with the right end of the outer pipe, a first piston is arranged in the inner pipe, and a second piston is arranged in a cavity between the outer pipe and the inner pipe;
the shell and dress are in first flat push device and the second flat push device in the shell, the shell connect in the left end of outer tube, the power take off end of first flat push device stretch into in the inner tube and with first piston links to each other in order to be used for with fluid gelatin follows the right-hand member of inner tube is released, the power take off end of second flat push device stretch into the outer tube with in the cavity between the inner tube and with the second piston links to each other in order to be used for with gelatin sponge follows the right-hand member of outer tube is released.
2. The injection device for hemostasis of the venous plexus of a cervical spine according to claim 1, wherein: first flat push device includes first motor, first lead screw, first nut and first push rod, first motor is installed in the shell, first lead screw is in through first coupling joint in the pivot of first motor, first nut spiro union is in on the first lead screw, first push rod is connected on the first nut outer wall, it is right to be equipped with on the inner wall of shell first lead screw forms the first backup pad that supports, the right-hand member of first push rod stretch into in the inner tube and with first piston links to each other.
3. The injection device for hemostasis of the venous plexus of the cervical spine according to claim 2, wherein: the second horizontal pushing device comprises a second motor, a second lead screw, a second nut and a second push rod, the second motor is installed in the shell, the second lead screw is connected to a rotating shaft of the second motor through a second coupler, the second nut is in threaded connection with the second lead screw, the second push rod is connected to the outer wall of the second nut, a second supporting plate supporting the second lead screw is further arranged on the inner wall of the shell, and the right end of the second push rod extends into a cavity between the outer tube and the inner tube.
4. The injection device for hemostasis of the venous plexus of the cervical spine according to claim 3, wherein: still including installing the grab handle of shell left end, install the battery in the grab handle, and install first switch and second switch on the outer wall of grab handle, first motor through first wire with the battery electricity is connected just first switch electricity is connected in the first wire, the second motor through the second wire with the battery electricity is connected just second switch electricity is connected in the second electric wire.
5. The injection device for hemostasis of the venous plexus of the cervical spine according to claim 4, wherein: the cavity in the inner tube is an inner hole, the cavity between the inner tube and the outer tube is an outer hole, the aperture of the inner hole is smaller than that of the outer hole, and the outer wall of the inner tube is attached to the inner wall of the outer tube.
6. The injection device for hemostasis of the venous plexus of the cervical spine according to claim 5, wherein: the conical pipe is characterized by also comprising a pipe body consisting of a conical pipe and a straight pipe, wherein the conical bottom end of the conical pipe is connected to the right end of the outer pipe, the straight pipe is arranged at the conical top end of the conical pipe, and the conical pipe, the straight pipe and the outer pipe are coaxially arranged;
the inner wall of the tube body is provided with a convex part, the convex part is provided with a flow passage which penetrates through the left end and the right end of the tube body, and the left end of the flow passage is communicated with the inner hole.
7. The injection device for hemostasis of the venous plexus of the cervical spine according to claim 6, wherein: the cover can seal the right end of the straight pipe, and the cover is screwed on the straight pipe.
8. The injection device for hemostasis of the venous plexus of a cervical spine according to claim 7, wherein: the right-hand member of first push rod is equipped with first push pedal, first push pedal with first piston adaptation, the right-hand member of second push rod is equipped with the second push pedal just the second push pedal with second piston adaptation.
9. The injection device for hemostasis of the venous plexus of a cervical spine according to claim 8, wherein: the right end of the second piston is provided with a conical block matched with the conical pipe, and the center of the end face of the right end of the conical block is provided with an inserting block matched with the straight pipe.
10. An injection device for hemostasis of the venous plexus of a cervical spine according to any one of claims 1-9, wherein: the outer tube is characterized in that a left mounting lug is arranged on the outer wall of the right end of the outer shell, a right mounting lug is arranged on the outer wall of the left end of the outer tube, and the left mounting lug and the right mounting lug are locked through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010451916.4A CN111588947A (en) | 2020-05-26 | 2020-05-26 | Injection device for stopping bleeding of cervical vertebral canal venous plexus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010451916.4A CN111588947A (en) | 2020-05-26 | 2020-05-26 | Injection device for stopping bleeding of cervical vertebral canal venous plexus |
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| Publication Number | Publication Date |
|---|---|
| CN111588947A true CN111588947A (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010451916.4A Pending CN111588947A (en) | 2020-05-26 | 2020-05-26 | Injection device for stopping bleeding of cervical vertebral canal venous plexus |
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| CN (1) | CN111588947A (en) |
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Application publication date: 20200828 |