CN115778449A - Medical adhesive, conveying device and conveying system - Google Patents
Medical adhesive, conveying device and conveying system Download PDFInfo
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- CN115778449A CN115778449A CN202111060834.8A CN202111060834A CN115778449A CN 115778449 A CN115778449 A CN 115778449A CN 202111060834 A CN202111060834 A CN 202111060834A CN 115778449 A CN115778449 A CN 115778449A
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Abstract
The invention discloses a medical adhesive, a conveying device and a conveying system, wherein the conveying device comprises a marking guide pipe and a glue injection pipe, and the marking guide pipe is connected with the glue injection pipe; the conveying system comprises the conveying device, a first joint of the glue injection pipe at the end part of the glue injection pipe is connected with a glue injector, and the glue injector comprises a glue injection cavity, a buckle ring, a glue injection piston, a piston latch and a glue outlet; the glue injector is connected with the glue gun connecting groove at the end part of the glue gun through the glue injector cylinder seat at the end part of the glue injector, and the other end of the glue injection piston is connected with the driven rack inside the glue gun. The rubber gun adopts the spring as the elastic part of the rubber gun, has the characteristic of fatigue resistance, and prolongs the service life; quantitative extrusion and repeated use can be realized; the marking catheter is provided with the first mark and the second mark, so that the length of the part of the catheter penetrating into the human tissue can be known; the structure is simple, and the assembly difficulty is low; through the buckle ring design of injecting glue ware, realized reducing the injecting glue part to the effect that equivalent volume of gluing was extruded has been realized.
Description
Technical Field
The present invention relates to medical adhesives and delivery devices, and more particularly, to a medical adhesive, a delivery device and a delivery system.
Background
The lower limb varicose vein intracavity closure surgery is different from the existing traditional open denudation surgery treatment and the treatment means such as thermal ablation, and the radio frequency partial excision and the laser partial excision require deep anesthesia and have the side effects of burn and nerve injury. The above methods all require wearing compression stockings for 2-4 weeks, and not only are closed operations in varicose veins of the lower limbs, but similar situations also exist in the closed operations of telangiectasia, vascular, non-vascular fistulae and fallopian tubes. The system realizes the accurate closure of the severe lower limb lesion part of the varicose vein patient by using an innovative special medical adhesive in a minimally invasive mode, the operation wound is small, and the time in the operation is greatly shortened.
The glue gun used in the operation can control the quantitative extrusion of the medical adhesive in the glue injector by pulling the trigger once, thereby realizing the purpose of venous staged sealing. The handle and the transmission conveying mechanism of the currently used glue gun structure are made of plastics, so that the defect of no fatigue resistance exists, and the service life is shortened; in the prior art, the adhesive introducing device is a manual liquid dispenser, which can controllably and accurately dispense the adhesive into the vessel, but cannot realize quantitative extrusion of the adhesive and cannot realize the characteristic of repeated use; the existing structure is complex and the assembly difficulty is high.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a medical adhesive, a conveying device and a conveying system.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a conveying device, which comprises a marking conduit and a glue injection pipe, wherein,
the marking conduit is connected with the glue injection pipe;
the outer surface of the marker catheter is provided with a first marker and a second marker, wherein,
the second marks are distributed among the first marks;
the end part of the glue injection pipe is provided with a first joint of the glue injection pipe and a second joint of the glue injection pipe, wherein,
the glue injection pipe is connected with the marking conduit through the second glue injection pipe connector.
As a preferred technical scheme of the invention, one end of the glue injection pipe is provided with a glue injection pipe fitting, wherein,
the glue injection pipe fitting is provided with a developing device;
the second joint of the glue injection pipe is connected with the joint of the marking pipe at the end part of the marking pipe, wherein,
a marking catheter grab handle is arranged on the marking catheter on one side of the marking catheter joint;
and a glue injection pipe grab handle is arranged between the first glue injection pipe joint and the second glue injection pipe joint.
The invention relates to a conveying system, which comprises the conveying device, wherein a first joint of a glue injection pipe at the end part of the glue injection pipe is connected with a glue injector,
the glue injector comprises a glue injection cavity, a buckle ring, a glue injection piston, a piston latch and a glue outlet hole;
the glue injector is internally provided with a glue injection cavity, wherein,
a glue injection piston is arranged in the glue injection cavity;
a buckle ring is installed at the end part of the glue injector, and a piston latch is arranged on the glue injection piston;
and the end part of the glue injection cavity is provided with a glue injection hole.
As a preferred technical solution of the present invention, the snap ring is snapped into an end flange of the glue injector, wherein,
a buckle ring limiting block is arranged at one end of the buckle ring and is arranged in a groove of a flange at the end part of the glue injector;
the other end of the buckle ring is provided with buckle ring latch, wherein,
and a buckle ring locking block is arranged on the inner side of the buckle ring close to the flange of the glue injector.
As a preferable technical solution of the present invention, a second locking block of the snap ring is provided at an outer side of the snap ring, wherein,
one side of the second locking block of the buckle ring is provided with a bending point of the buckle ring;
and a buckle ring locking groove is formed in the same side of the buckle ring and the buckle ring second locking block.
The invention relates to a conveying system, which comprises the conveying device, wherein a first joint of a glue injection pipe at the end part of the glue injection pipe is connected with a pipe end part assembly of a pressing type glue injection device,
the pressing type glue injector comprises a shell;
a storage chamber is provided within the housing, wherein,
the top end of the shell is provided with a pressure ring;
a liquid outlet pipe penetrates through the pressure ring, wherein,
a first one-way valve and a second one-way valve are arranged in the liquid outlet pipe;
a spring is arranged between the first one-way valve and the second one-way valve;
the end part of the pressure ring is provided with a connecting pipe, wherein,
the connecting pipe is communicated with the liquid outlet pipe;
the end portion assembly is mounted to the end of the connecting tube.
The invention relates to a conveying system, which comprises the conveying device, wherein the glue injector is connected with a glue gun connecting groove at the end part of a glue gun through a glue injector cylinder seat at the end part of the glue injector, wherein,
the other end of the glue injection piston is connected with a driven rack inside the glue gun;
the driven rack is meshed with the driving rack.
As a preferred technical scheme of the invention, the driving rack is arranged at the top end of a trigger through a shaft pin;
a cavity is arranged in the handle of the glue gun, a limiting plate is fixed at the bottom in the cavity, wherein,
a rebound spring is arranged between the trigger and the limit plate;
one side of the trigger is provided with a trigger limit post, wherein,
the trigger limiting column is arranged on the inner wall of the glue gun handle cavity;
a shaft pin is arranged at the end part of the driving rack, a gear filling switch is arranged at the end part of the shaft pin, wherein,
the tooth filling switch is positioned on the outer side of the glue gun.
As a preferred technical scheme of the invention, the driving rack is arranged at the top end of a trigger through a shaft pin;
a cavity is arranged in the handle of the glue gun, a limiting plate is fixed at the bottom in the cavity, wherein,
a protruding column is arranged on one side of the limiting plate;
a second rebound spring is sleeved on the convex column, wherein,
a hole position groove corresponding to the protruding column is formed in one side, opposite to the protruding column, of the trigger;
a shaft pin is arranged at the end part of the driving rack, a gear filling switch is arranged at the end part of the shaft pin, wherein,
the tooth filling switch is positioned on the outer side of the glue gun.
In a preferred embodiment of the present invention, a tensioner is installed on the top of the driven rack, wherein,
the driven rack penetrates through the glue gun.
The invention discloses a conveying system, which comprises the conveying device, wherein a moving groove is arranged in the glue gun,
a drawing type limiting device is arranged in the moving groove;
the drawing type limiting device comprises one of a direct insertion type limiting plate or a spiral type limiting plate, wherein,
a clamping block is arranged on the direct insertion type limiting plate;
a third rebound spring is arranged on a connecting bolt of the trigger and the driving rack;
a third tensioner is mounted on the bottom of the driven rack, wherein,
an elastic fixing block is arranged between the third tensioner and the driven rack.
The invention also provides a medical adhesive applied to the delivery device or the delivery system, which comprises the following components: closing main component agent, plasticizer, thickening agent and polymerization inhibitor, and mixing.
Still more preferably, the main ingredient agent comprises one or more of n-ethyl a-cyanoacrylate, iso-ethyl a-cyanoacrylate, n-butyl a-cyanoacrylate, isobutyl a-cyanoacrylate, n-octyl a-cyanoacrylate and iso-octyl a-cyanoacrylate;
the plasticizer comprises one or more of polyethylene glycol dioleate, tributyl citrate, dioctyl terephthalate, dioctyl sebacate, synthetic vegetable ester, methyl palmitate, epoxidized soybean oil, acetyl tributyl citrate, acetyl triethyl citrate, polyethylene glycol monomethyl ether and tributyrin;
the thickening agent comprises one or more of polyvinylpyrrolidone, polymethyl methacrylate, polybutyl acrylate, chitosan, gelatin, soluble starch, sodium carboxymethyl cellulose, cellulose acetate butyrate, carboxymethyl cellulose and ethylene-vinyl acetate copolymer;
the polymerization inhibitor comprises one or more of hydroquinone, succinic acid, malic acid, citric acid, phosphoric acid, glacial acetic acid, methane sulfonic acid, phytic acid and polyglutamic acid.
The invention has the following beneficial effects: the rubber gun adopts the spring as the elastic part of the rubber gun, has the characteristic of fatigue resistance, and prolongs the service life; quantitative extrusion and repeated use can be realized; the marked catheter is provided with the first mark and the second mark, so that accurate positioning is realized, and the length of the part of the catheter penetrating into human tissues can be known; the structure is simple, and the assembly difficulty is low; through the buckle ring design of injecting glue ware, realized reducing the injecting glue part to the effect that equivalent volume of gluing was extruded has been realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is one of the schematic structural diagrams of the present invention;
FIG. 2 is one of the schematic structural diagrams of the present invention;
FIG. 3 is one of the structural schematic diagrams of the present invention;
FIG. 4 is one of the schematic structural diagrams of the present invention;
FIG. 5 is one of the schematic structural diagrams of the present invention;
FIG. 6 is one of the structural schematic diagrams of the present invention;
FIG. 7 is one of the structural schematic diagrams of the present invention;
FIG. 8 is one of the structural schematics of the present invention;
FIG. 9 is one of the schematic structural diagrams of the present invention;
FIG. 10 is one of the schematic structural views of the present invention;
FIG. 11 is one of the structural schematic diagrams of the present invention;
FIG. 12 is one of the schematic structural views of the present invention;
FIG. 13 is one of the structural schematics of the present invention;
FIG. 14 is one of the schematic structural views of the present invention;
FIG. 15 is one of the schematic structural views of the present invention;
FIG. 16 is one of the schematic structural views of the present invention;
FIG. 17 is one of the structural schematics of the present invention;
FIG. 18 is one of the structural schematics of the present invention;
FIG. 19 is one of the schematic structural diagrams of an embodiment of the present invention;
FIG. 20 is one of the schematic structural diagrams of an embodiment of the present invention;
FIG. 21 is one of the schematic structural diagrams of an embodiment of the present invention;
FIG. 22 is one of the schematic structural views of the present invention;
FIG. 23 is one of the structural schematic diagrams of the present invention;
FIG. 24 is one of the structural schematics of the present invention;
in the figure: 1. marking the catheter; 2. a glue injection pipe; 3. a glue injector; 4. a glue gun; 11. marking a catheter adapter; 12. marking a catheter handle; 13. a first mark; 14. a second mark; 21. a first joint of the glue injection pipe; 22. a glue injection pipe grab handle; 23. a second joint of the glue injection pipe; 24. a glue injection pipe fitting; 25. a developing device; 31. a glue injection cavity; 32. a buckle ring; 33. a glue injection piston; 34. piston latch; 35. a glue outlet hole; 321. a buckle ring limiting block; 322. a snap ring locking block; 323. the buckle ring is clamped with teeth; 324. bending points; 325. a snap ring second locking block; 326. a snap ring locking groove; 41. the glue gun is connected with the groove; 42. a driving rack; 43. a driven rack; 44. a trigger; 45. a rebound spring; 46. a limiting plate; 47. a trigger limit post; 48. a tooth filling switch; 49. a second rebound spring; 410. a raised post; 411. a hole site groove; 412. a tensioner; 413. a third tensioner; 4131. an elastic fixing block; 414. a pull type limiting device; 4141. a direct insertion type limit plate; 41411. a clamping block; 4142. a spiral limiting plate; 415. a moving groove; 416. a third rebound spring; 5. a housing; 51. pressing a ring; 52. a liquid outlet pipe; 53. a first check valve; 54. a second one-way valve; 55. a spring; 56. a connecting pipe; 57. a storage chamber.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1
As shown in fig. 1-2, the present invention provides a medical adhesive, a conveying device and a conveying system, in this embodiment 1, a conveying device is provided, which includes a label conduit 1 and a glue injection pipe 2, wherein the label conduit 1 is connected to the glue injection pipe 2, the glue injection pipe 2 is a standard luer connector (i.e., a first glue injection pipe connector 21) in order from the left end, and is convenient to assemble with a glue injector 3, a glue injection pipe handle 22 is provided between the first glue injection pipe connector 21 and a second glue injection pipe connector 23, and plays a role in holding when the glue injection pipe 2 and the glue injector 3 are rotatably assembled, and the luer nut connector (i.e., the second glue injection pipe connector 23) is assembled with a head end of a glue injection pipe 24;
the outer surface of the marker catheter 1 is provided with a first mark 13 and a second mark 14, wherein the second mark 14 is distributed between the first marks 13, in the embodiment, the first mark 13 is a mark and the second mark is a number mark, the marker catheter 1 is provided with mark marks (namely the first marks 13) at intervals of the same distance from the head end, and simultaneously, the distance between the head end and the position of the head end is 10mm,20mm, 8230\ 823080; and the distance between the head end and the position of the head end is engraved with the number mark (namely the second mark 14), and the marks are used for measuring the length of the marker catheter 1 and the glue injection pipe 2 penetrating into the human body and the positions of the glue injection points in the veins to be consistent.
The end of the glue injection pipe 2 is provided with a first glue injection pipe connector 21 and a second glue injection pipe connector 23, wherein the glue injection pipe 2 is connected with the marking conduit 1 through the second glue injection pipe connector 23.
A glue injection pipe fitting 24 is installed at one end of the glue injection pipe 2, wherein a developing device 25 is arranged on the glue injection pipe fitting 24, the developing device 25 is specifically a developing point or a developing ring, the material is a special metal material, the special metal material is preferably platinum iridium metal or tantalum metal in the embodiment, and the developing point or the developing ring has a calibrated distance between the starting end and the tail end of the glue injection pipe fitting 24, so that the position of the head end of the glue injection pipe fitting 24 in the vein tissue is determined under the developing device; the material of the glue injection pipe fitting 24 can be selected from materials including but not limited to PTFE, and the pipe diameter of the glue injection pipe fitting 24 is smaller than that of the marking conduit 1, so that the glue injection pipe fitting 24 can be arranged in the marking conduit 1; the material of the marking conduit 1 can be selected from materials including but not limited to PE, and the diameter of the marking conduit 1 should be larger than the glue injection pipe 2 so as to be capable of being sleeved outside the glue injection pipe 2.
The second glue injection pipe connector 23 is connected with the marking pipe connector 11 (standard Ruhr connector) at the end part of the marking pipe 1, so that a glue injection pipe fitting 24 and the marking pipe 1 are realized, wherein the marking pipe 1 at one side of the marking pipe connector 11 is provided with a marking pipe grab handle 12, and the marking pipe 1 and the glue injection pipe 2 are rotatably assembled to play a holding role;
specifically, the conveying device (i.e., the glue injection device) of the embodiment can realize that the lengths of the marked conduit 1 and the glue injection pipe 2 penetrating into the human body and the positions of the glue injection points in the veins are consistent in interval.
Example 2
As shown in fig. 3-7, the present embodiment provides a conveying system, which includes the conveying device in embodiment 1, a first joint 21 of a glue injection pipe at an end of the glue injection pipe 2 is connected to a glue injector 3, where the glue injector 3 includes a glue injection cavity 31, a snap ring 32, a glue injection piston 33, a piston latch 34, and a glue outlet 35;
the glue injection cavity 31 is arranged in the glue injector 3, wherein the glue injection piston 33 is installed in the glue injection cavity 31, and the luer connector is arranged at the left end of the glue injection cavity 31 and is conveniently assembled with the glue injection pipe 2. The glue injection cavity 31 is smooth and consistent, and the glue injection piston 33 is guaranteed to move liquid-tightly.
The end part of the glue injector 3 is provided with a clamping ring 32, and a piston clamping tooth 34 is arranged on the glue injection piston 33; the end part of the glue injection cavity 31 is provided with a glue injection hole 35, so that extrusion of a special sealing agent can be ensured.
The buckle ring 32 is clamped into the end flange of the glue injector 3, wherein one end of the buckle ring 32 is provided with a buckle ring limiting block 321, and the buckle ring limiting block 321 is arranged in a groove of the end flange of the glue injector 3;
the other end of the buckle ring 32 is provided with a buckle ring latch 323, wherein the inner side of the buckle ring 32 close to the flange of the glue injector 3 is provided with a buckle ring locking block 322.
The buckle ring limiting block 321 is limited in a certain range on a clamping groove on a glue injection handle of the glue injector 3 to move, the buckle ring clamping teeth 323 are meshed with clamping teeth on the piston clamping teeth 33 of the glue injector 3, and the transverse length of the buckle ring clamping teeth 323 is smaller than that of the glue injection piston clamping teeth. In this embodiment, the preferred 6 circumference arrays of latch of buckle circle 32, and the buckle position has the chute, prevents the effect of injecting glue piston 33 fallback. When the buckle ring 32 moves to the state that the buckle ring 32 is buckled and meshed with the clamping teeth of the glue injection piston 33, the convex buckle ring locking block 322 on the buckle ring 32 is matched with the concave locking block on the glue injection handle, and the locking effect is completed.
In another preferred embodiment of the present invention, a second locking block 325 of the snap ring is provided at the outer side of the snap ring 32, wherein one side of the second locking block 325 of the snap ring is provided with the bending point 324 of the snap ring 32; the snap ring 32 is provided with a snap ring locking groove 326 on the same side as the snap ring second locking block 325.
The design of a limiting block is cancelled, and the locking of the buckling ring 32 is completed by bending operation. After the glue injection piston 33 is pushed into the cavity, the locking is completed by bending the snap ring 32 until the second locking block 325 of the snap ring sinks into the snap ring locking groove 326.
The injecting glue piston 33 left end is the rubber material, for having good liquid-tight effect, and middle section injecting glue piston 33 axle is equipped with latch (buckle circle latch 323), and its inter-latch distance setting is relevant with the cross-sectional area of injecting glue ware 3 injecting glue tube cavity 31, guarantees that each section of free range of injecting glue piston 33 can both extrude quantitative gluey volume. The depth of the latch on the piston shaft is matched with the latch of the snap ring 32, so that the piston shaft is not too loose or too tight. The glue injection piston handle is provided with the anti-slip strip, so that the glue injection piston handle is prevented from sliding in the pushing process to influence the glue amount, namely as shown in fig. 7.
Example 3
As shown in fig. 8, the present embodiment provides a conveying system, which includes the conveying apparatus in embodiment 1, the first joint 21 of the glue injection pipe at the end of the glue injection pipe 2 is connected to a connecting pipe end assembly 561 of the pressing type glue injection device, wherein the pressing type glue injection device includes a housing 5;
a storage cavity 57 is arranged in the shell 5, wherein a press ring 51 is arranged at the top end of the shell 5; a liquid outlet pipe 52 penetrates through the pressure ring 51, wherein a first one-way valve 53 and a second one-way valve 54 are installed in the liquid outlet pipe 52; a spring 55 is arranged between the first check valve 53 and the second check valve 54; a connecting pipe 56 is arranged at the end part of the compression ring 51, wherein the connecting pipe 56 is communicated with the liquid outlet pipe 52; and a connecting pipe end part assembly 561 is installed at the end part of the connecting pipe 56 to realize the communication with the glue injection pipe 2.
Specifically, when using, hold the colloid in box body 5, when needing the glue solution, the one-hand palm presses down pressing ring 51, drain pipe 52 drives first check valve 53 downstream, spring 55 is compressed, space between first check valve 53 and the second check valve 54 diminishes, pressure increases, make first check valve 53 opened, allow the colloid to pass through, when the palm leaves pressing ring 51, under the effect of spring, drain pipe 52 shifts up, space between two check valves grow, second check valve 54 is opened, the colloid in the box body is inhaled to between two check valves, accomplish the colloid and inhale. When the liquid outlet pipe is used for the first time, the liquid outlet pipe can be pressed for a plurality of times to fill the colloid in the liquid outlet pipe. This colloid strorage device is from side spun structural style, makes the colloid spout to the position of palm height from the top, and the one hand can stably accomplish pressing out of colloid, and it is more convenient to operate, combines pipe 6 again, realizes quantitative colloid output.
Example 4
As shown in fig. 9-12, fig. 18, and fig. 22-24, the present embodiment provides a conveying system, which is different from embodiment 2 in that the glue injector 3 is connected to the glue gun connection groove 41 at the end of the glue gun 4 through the glue injector cylinder seat at the end thereof, wherein the other end of the glue injection piston 33 is connected to the driven rack 43 inside the glue gun 4 and can be driven by the driven rack 43, and the glue injection piston 33 is pushed by an embodiment, and each distance of pushing is equal to control the quantitative amount of the glue output;
the driven rack 43 is engaged with the driving rack 42. The driving rack 42 is mounted on the top end of the trigger 44 through a shaft pin;
a cavity is arranged in the handle of the glue gun 4, a limiting plate 46 is fixed at the bottom in the cavity, and a rebound spring 45 is arranged between the trigger 44 and the limiting plate 46; a trigger limiting column 47 is arranged on one side of the trigger 44, wherein the trigger limiting column 47 is arranged on the inner wall of the handle cavity of the glue gun 4;
a shaft pin is arranged at the end part of the driving rack 42, and a tooth filling switch 48 is arranged at the end part of the shaft pin, wherein the tooth filling switch 48 is positioned at the outer side of the glue gun 4; the filling gear switch 48 is shifted downwards, the filling gear switch 48 drives the driving rack 42 to move downwards, a gap is reserved for inserting the driven rack 43, the driven rack is inserted to the bottom, and then the glue injector is inserted to the clamping groove to be fixed in a rotating mode, so that assembly is completed.
Specifically, the tooth density of the driving rack 42 and the tooth density of the driven rack 43 in the glue gun 4 are kept consistent, so that the transmission effect of the two pieces is realized. Before the trigger 44 is not pulled, the end of the driving rack 43 is acted by the tension spring, so that the driving rack 42 is always kept in the upwarping state. In this structure, the upper end of the limit plate 46 has the function of limiting the driving rack 42, so as to prevent the driving rack from being raised too high.
The trigger 44 in the glue gun 4 is designed by adopting an ergonomic structure and has an anti-skid function. A concentric bore is provided in the upper end of the trigger 44 to match the concentric axis of the driving rack 42. When the trigger 44 is pulled, the driving rack 42 will move approximately circularly, giving a driving effect to the driven rack 42. When the trigger 44 abuts the trigger stopper 47, the trigger 44 stops moving. And the spacing post of trigger is controllable, and the spacing post diameter of trigger is big more, and the trigger stroke is little less, and the initiative rack stroke volume is little less, and trigger middle section tail end is equipped with rebound spring 45, and rebound spring 45 gives behind the conflict limiting plate 46 the rebound effect behind the trigger 44 of pulling.
And (3) pulling the trigger 44, wherein the trigger 44 drives the driving rack 42 to move approximately in a circular manner, the driven rack 43 moves leftwards due to the engagement of the driven rack and the driving rack 42, the driven rack 43 props against the piston handle of the glue injector to push the piston to move leftwards, and quantitative medical adhesive is extruded. When the rebound spring of the trigger props against the right limiting plate, the trigger rebounds to the initial position to a certain limit.
The tensioner 412 in the glue gun 4 applies lateral pressure to the driven rack 43 through two tension pieces, so that the driven rack 43 is prevented from retreating after being subjected to lateral pressure during forward movement. After the driven rack 43 moves to the left extreme position, the gear filling switch 48 is shifted downwards, and the gear filling switch drives the driving rack 42 to strip the gear-biting area coaxially downwards, so that the driven rack 43 can move rightwards freely. After the gear-filling switch 48 rebounds to the original position, the driving rack 42 reengages the driven rack 43 to perform the lower wheel propelling movement.
The tooth density parameters of the driven rack 43 and the driving rack 42 are calculated through the extrusion amount of the adhesive, the driven rack is pushed forwards, the pushing amount of the driven rack is limited by the trigger limiting column, and the glue injection piston 33 connected with the glue gun 4 is pushed forwards to complete the extrusion of the quantitative adhesive. Each actuation of the trigger 44 must be an equal amount of adhesive extrusion, consistent with the vein closure technique.
In another preferred embodiment of the present invention, the active rack 42 is mounted to the top end of the trigger 44 by a pivot pin; a cavity is arranged in the handle of the glue gun 4, a limiting plate 46 is fixed at the bottom in the cavity, wherein a protruding column 410 is arranged on one side of the limiting plate 46 to adapt to the circular motion of the trigger 44; a second rebound spring 49 is sleeved on the protruding column 410 to give a rebound effect to the trigger 44 (the diameter of the second rebound spring 49 is larger than that of the cylinder, namely the protruding column 410), wherein one side of the trigger 44 opposite to the protruding column 410 is provided with a hole position slot 411 corresponding to the protruding column 410, and in order to leave a space for the cylinder to enter after the second rebound spring 49 is compressed, the diameter of the hole position slot is smaller than that of the second rebound spring 49, but is larger than that of the cylinder (the protruding column 410);
the end of the driving rack 42 is provided with a shaft pin, and the end of the shaft pin is provided with a tooth filling switch 48, wherein the tooth filling switch 48 is positioned at the outer side of the glue gun 4.
Further, in embodiment 4 and another embodiment included in embodiment 4, the tensioner 412 is installed on the top of the driven rack 43, wherein the driven rack 43 penetrates the glue gun 4.
Example 5
As shown in fig. 13-17, this embodiment provides a delivery system, which is different from embodiment 2 in that a moving groove 415 is provided inside the glue gun 4, wherein a pull type limiting device 414 is installed inside the moving groove 415, and the tooth filling switch 48 and the trigger limiting column 47 are eliminated;
the drawing type limiting device 414 comprises one of a direct-inserting type limiting plate 4141 or a spiral type limiting plate 4142, wherein a clamping block 41411 is mounted on the direct-inserting type limiting plate 4141 and abuts against the lower side of the shell to stop drawing movement; when the pull type stopper 414 is the screw type stopper 4142, it is rotated out from below the handle of the glue gun 4 as shown in fig. 17.
A third rebound spring 416 is arranged on a connecting bolt of the trigger 4 and the driving rack 42;
a third tensioner 413 is installed at the bottom of the driven rack 43, wherein an elastic fixing block 4131 is provided between the third tensioner 413 and the driven rack 43.
Specifically, after the pull-out type position-limiting device 414 is pulled out downwards, a space for moving the trigger 44 rightwards again is reserved, the trigger 44 is pulled to the deep inside of the machine shell of the glue gun 4 again, when the circular motion of the driving rack 42 peels off the tooth-biting area, a free gap is given to the driven rack 43, and the driven rack 43 is enabled to freely enter and exit the shell of the glue gun 4, as shown in the schematic drawing of ending the trigger 44 in fig. 14. A limiting plate moving groove 415 is formed in the shell (i.e., the moving groove 415 is formed in the glue gun 4), so that the pull-out limiting device 414 can move within a certain range and can abut against the lower portion of the shell to stop the pull-out movement. In order to allow room for movement of the trigger 44, the housing eliminates the trigger restraint posts 47. As shown in fig. 15, a third rebound spring 416 is mounted on the connection bolt between the trigger 4 and the active rack 42, one end of the third rebound spring 416 abuts against the trigger 44, and the other end of the third rebound spring abuts against the active rack 42, so that the active rack 42 is kept in a tilted state during forward propelling movement, and the head of the active rack 42 has certain elasticity. As shown in fig. 16, a third tensioner 413 is mounted on the bottom of the driven rack 43, an elastic fixing block 4131 is disposed between the third tensioner 413 and the driven rack 43, and the left and right elastic fixing blocks elastically clamp the middle driven rack 43 to prevent it from moving backward.
All the examples contained in examples 4-5 can realize the quantitative extrusion of the adhesive, and the contents in different structures can be replaced with each other, but all the contents are within the protection scope of the patent.
Specifically, in the embodiments 2 to 5, the detailed operation that the glue injection tube 2 equally discharges glue through three ways of combining the pressing type glue injector, the glue injector 3 and the glue gun 4 is as follows, as shown in fig. 19, after the blood vessel access is established, the blood vessel access needs to be pre-expanded by using the dilator, and after the blood vessel access is established, under the probing of the ultrasonic instrument, the glue injection tube 2 and the marker catheter 1 reach the specified occlusion area along the vein entrance (where the developing device 25 of the glue injection tube 2 plays a role in precise positioning). Pushing the glue injection handle (glue injection piston 33) at the rear end of the glue injector 3 or pressing the press ring 51 of the press type glue injector in embodiment 3, the glue injection piston 33 pushes the cavity to spray quantitative special closing adhesive, then the vein is collapsed downwards by utilizing the downward external binding force, and the special closing adhesive is adhered to the blood vessel under the action of external pressure. When the glue injection piston 33 and the piston latch 34 of the glue injector 3 are engaged or the pressing ring 51 of the pressing-type glue injector in embodiment 3 is pressed only once, the glue injection process is stopped. Standing for a period of time, and after the blood vessel in the occlusion area is closed, drawing the glue injection pipe 2 to a certain distance away from the front glue injection point. Simultaneously moving the ultrasonic sensor, confirming the position of the glue injection pipe 2 again, and pushing the glue injector 3 to inject the same amount of special closed adhesive; as shown in fig. 20, after the vascular access is established, the vascular access needs to be pre-dilated by using a dilator, after the vascular access is established, under the visit of an ultrasonic instrument, after the glue injection tube 2 and the marking catheter 1 reach a designated occlusion area along the vein vascular entrance (wherein, the developing device 25 of the glue injection tube 2 plays a role of accurate positioning), a trigger 44 of the glue gun 4 is buckled, a driven rack 43 pushes the glue injection piston 33 of the glue injector 3 to move, so that the glue injector 3 sprays a certain amount of special closure adhesive, then the vein is collapsed downwards by using an external downward constraining force, and the special closure adhesive is bonded with the blood vessel under the action of external pressure. Standing for a period of time, and after the blood vessel in the occlusion area is closed, drawing the glue injection pipe 2 to a certain distance away from the front glue injection point. Meanwhile, the ultrasonic sensor is moved, the position of the glue injection pipe 2 is confirmed again, and the glue injector 3 is pushed to inject the same amount of special closing adhesive, as shown in fig. 21.
The distance of the glue injection pipe 2 is based on the exposed mark of the marked conduit 1. And repeating the steps until the designated occlusion area is completely closed. The closed state of the vein in the designated occlusion area can also be based on ultrasonic images. The glue injection tube 2 and marker guide tube 1 assembly may then be removed.
This embodiment is not only suitable for varicose veins in the lower extremities, but also for closed surgery of veins, arteries, lymphatic vessels or other artificial body cavities, including telangiectasia, closure of vascular, non-vascular fistulas and fallopian tubes.
The invention also provides a medical adhesive (i.e., the special occlusive adhesive of examples 1-5) for use in a delivery device or delivery system as described above, the composition of which comprises: closing main component agent, plasticizer, thickening agent and polymerization inhibitor, and mixing.
Specifically, the main ingredient agent comprises one or more of a-ethyl cyanoacrylate, iso-ethyl cyanoacrylate, n-butyl cyanoacrylate, isobutyl cyanoacrylate, n-octyl cyanoacrylate and iso-octyl cyanoacrylate;
the plasticizer comprises one or more of polyethylene glycol dioleate, tributyl citrate, dioctyl terephthalate, dioctyl sebacate, synthetic vegetable ester, methyl palmitate, epoxidized soybean oil, acetyl tributyl citrate, acetyl triethyl citrate, polyethylene glycol monomethyl ether and tributyrin;
the thickening agent comprises one or more of polyvinylpyrrolidone, polymethyl methacrylate, polybutyl acrylate, chitosan, gelatin, soluble starch, sodium carboxymethyl cellulose, cellulose acetate butyrate, carboxymethyl cellulose and ethylene-vinyl acetate copolymer;
the polymerization inhibitor comprises one or more of hydroquinone, succinic acid, malic acid, citric acid, phosphoric acid, glacial acetic acid, methane sulfonic acid, phytic acid and polyglutamic acid.
A single injection of a special closure adhesive may be between 0.1ml and 1.0ml, and two separate injections may be located within the blood vessel at a distance of between 0.5cm and 5 cm.
The conveying device is a glue injection device, and the conveying system is a glue injection system.
The rubber gun adopts the spring as the elastic part of the rubber gun, has the characteristic of fatigue resistance, and prolongs the service life; quantitative extrusion and repeated use can be realized; the marked catheter is provided with the first mark and the second mark, so that accurate positioning is realized, and the length of the part, deep into human tissue, of the catheter can be known; the structure is simple, and the assembly difficulty is low; through the buckle ring design of injecting glue ware, realized reducing the injecting glue part to the effect that equivalent volume of gluing was extruded has been realized.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. A conveying device is characterized by comprising a marking conduit (1) and a glue injection pipe (2), wherein,
the marking conduit (1) is connected with the glue injection pipe (2);
the outer surface of the marker catheter (1) is provided with a first marker (13) and a second marker (14), wherein,
the second marks (14) are distributed among the first marks (13);
a first glue injection pipe joint (21) and a second glue injection pipe joint (23) are arranged at the end part of the glue injection pipe (2), wherein,
the glue injection pipe (2) is connected with the marking conduit (1) through the second glue injection pipe connector (23).
2. A conveyor device according to claim 1, characterised in that the glue injection pipe (2) is fitted at one end with a glue injection pipe fitting (24), wherein,
a developing device (25) is arranged on the glue injection pipe fitting (24);
the second joint (23) of the glue injection pipe is connected with a marking pipe joint (11) at the end part of the marking pipe (1),
a marked catheter grab handle (12) is arranged on the marked catheter (1) at one side of the marked catheter joint (11);
and a glue injection pipe grab handle (22) is arranged between the first glue injection pipe joint (21) and the second glue injection pipe joint (23).
3. A transport system with a transport device according to any one of claims 1-2, characterized in that a glue injector (3) is connected to the first joint (21) of the glue injection pipe (2) at its end,
the glue injector (3) comprises a glue injection cavity (31), a clamping ring (32), a glue injection piston (33), a piston clamping tooth (34) and a glue outlet (35);
a glue injection cavity (31) is arranged in the glue injector (3), wherein,
a glue injection piston (33) is arranged in the glue injection cavity (31);
a buckle ring (32) is arranged at the end part of the glue injector (3), a piston latch (34) is arranged on the glue injection piston (33), wherein,
and the end part of the glue injection cavity (31) is provided with a glue injection hole (35).
4. A transport system according to claim 3, characterised in that the snap ring (32) snaps into an end flange of the glue injector (3), wherein,
a buckle ring limiting block (321) is arranged at one end of the buckle ring (32), and the buckle ring limiting block (321) is arranged in a groove of a flange at the end part of the glue injector (3);
the other end of the snap ring (32) is provided with snap ring latch teeth (323), wherein,
and a buckle ring locking block (322) is arranged on the inner side of the buckle ring (32) close to the flange of the glue injector (3).
5. A delivery system according to claim 3, wherein the outer side of the snap ring (32) is provided with a snap ring second locking block (325), wherein,
one side of the second locking block (325) of the snap ring is provided with a bending point (324) of the snap ring (32);
and a snap ring locking groove (326) is formed in the same side of the snap ring (32) and the second snap ring locking block (325).
6. A conveying system is characterized in that a first joint (21) of a glue injection pipe at the end part of a glue injection pipe (2) is connected with a connecting pipe end part assembly (561) of a pressing type glue injector,
the press type glue injector comprises a shell (5);
a storage chamber (57) is arranged in the housing (5), wherein,
a press ring (51) is mounted at the top end of the shell (5);
a liquid outlet pipe (52) penetrates through the pressure ring (51), wherein,
a first one-way valve (53) and a second one-way valve (54) are arranged in the liquid outlet pipe (52);
a spring (55) is arranged between the first one-way valve (53) and the second one-way valve (54);
a connecting pipe (56) is installed at the end of the compression ring (51), wherein,
the connecting pipe (56) is communicated with the liquid outlet pipe (52);
the connection pipe end assembly (561) is mounted to an end of the connection pipe (56).
7. The conveying system according to any one of claims 3-5, wherein the glue injector (3) is connected with a glue gun connection recess (41) at the end of the glue gun (4) by means of a glue injector cartridge seat at the end thereof, wherein,
the other end of the glue injection piston (33) is connected with a driven rack (43) inside the glue gun (4);
the driven rack (43) is meshed with the driving rack (42).
8. A delivery system according to claim 7, wherein the drive rack (42) is mounted by an axle pin to the top end of the trigger (44);
a cavity is arranged in the handle of the glue gun (4) and a limit plate (46) is fixed at the bottom in the cavity, wherein,
a rebound spring (45) is arranged between the trigger (44) and the limit plate (46);
one side of the trigger (44) is provided with a trigger limit post (47), wherein,
the trigger limiting column (47) is arranged on the inner wall of the handle cavity of the glue gun (4);
a shaft pin is arranged at the end part of the driving rack (42), a gear filling switch (48) is arranged at the end part of the shaft pin, wherein,
the tooth filling switch (48) is positioned on the outer side of the glue gun (4).
9. A delivery system according to claim 7, wherein the active rack (42) is mounted to the top end of the trigger (44) by means of a pin;
a cavity is arranged in the handle of the glue gun (4) and a limit plate (46) is fixed at the bottom in the cavity, wherein,
a protruding column (410) is installed on one side of the limiting plate (46);
a second rebound spring (49) is sleeved on the convex column (410), wherein,
one side of the trigger (44) opposite to the protruding column (410) is provided with a hole position slot (411) corresponding to the protruding column (410);
a shaft pin is arranged at the end part of the driving rack (42), a gear filling switch (48) is arranged at the end part of the shaft pin, wherein,
the tooth filling switch (48) is positioned on the outer side of the glue gun (4).
10. Conveying system according to any one of claims 7-9, characterized in that a tensioner (412) is mounted on top of the driven rack (43), wherein,
the driven rack (43) penetrates through the glue gun (4).
11. A delivery system according to claim 7, wherein the glue gun (4) is internally provided with a moving slot (415), wherein,
a drawing type limiting device (414) is arranged in the moving groove (415);
the drawing type limiting device (414) comprises one of an in-line type limiting plate (4141) or a spiral type limiting plate (4142),
a clamping block (41411) is mounted on the direct insertion type limiting plate (4141);
a third rebound spring (416) is arranged on a connecting bolt of the trigger (4) and the active rack (42);
a third tensioner (413) is installed at the bottom of the driven rack (43), wherein,
an elastic fixing block (4131) is arranged between the third tensioner (413) and the driven rack (43).
12. A medical adhesive for use in a delivery device or system according to any one of claims 1 to 11, wherein the occlusive adhesive composition used in the gel-in-place system comprises: closing main component agent, plasticizer, thickening agent and polymerization inhibitor, and mixing.
13. The medical adhesive according to claim 12,
the main component agent comprises one or more of a-ethyl cyanoacrylate, a-iso-ethyl cyanoacrylate, a-butyl cyanoacrylate, a-isobutyl cyanoacrylate, a-n-octyl cyanoacrylate and a-iso-octyl cyanoacrylate;
the plasticizer comprises one or more of polyethylene glycol dioleate, tributyl citrate, dioctyl terephthalate, dioctyl sebacate, synthetic vegetable ester, methyl palmitate, epoxidized soybean oil, acetyl tributyl citrate, acetyl triethyl citrate, polyethylene glycol monomethyl ether and tributyrin;
the thickening agent comprises one or more of polyvinylpyrrolidone, polymethyl methacrylate, polybutyl acrylate, chitosan, gelatin, soluble starch, sodium carboxymethyl cellulose, cellulose acetate butyrate, carboxymethyl cellulose and ethylene-vinyl acetate copolymer;
the polymerization inhibitor comprises one or more of hydroquinone, succinic acid, malic acid, citric acid, phosphoric acid, glacial acetic acid, methane sulfonic acid, phytic acid and polyglutamic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111060834.8A CN115778449A (en) | 2021-09-10 | 2021-09-10 | Medical adhesive, conveying device and conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111060834.8A CN115778449A (en) | 2021-09-10 | 2021-09-10 | Medical adhesive, conveying device and conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115778449A true CN115778449A (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111060834.8A Pending CN115778449A (en) | 2021-09-10 | 2021-09-10 | Medical adhesive, conveying device and conveying system |
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| Country | Link |
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| CN (1) | CN115778449A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116269602A (en) * | 2023-05-23 | 2023-06-23 | 苏州天鸿盛捷医疗器械有限公司 | Varicose vein intracavity closing device |
-
2021
- 2021-09-10 CN CN202111060834.8A patent/CN115778449A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116269602A (en) * | 2023-05-23 | 2023-06-23 | 苏州天鸿盛捷医疗器械有限公司 | Varicose vein intracavity closing device |
| CN116269602B (en) * | 2023-05-23 | 2023-09-01 | 苏州天鸿盛捷医疗器械有限公司 | Varicose vein intracavity closing device |
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