Implanted is feed through buffer for medical equipment
Technical Field
The invention relates to the technical field of medical equipment, in particular to a feed-through buffer device for implantable medical equipment.
Background
The standard procedure for placement of vascular access devices, such as ports of infusion, requires two incisions: a first incision near the clavicle for introducing a catheter into the superior vena cava to create a vascular access, and a second incision on the underlying chest where the port is ultimately implanted in a port pocket and connected to the catheter, the port comprising a portion of the catheter having a tip located in the superior vena cava and an injection seat implanted subcutaneously, wherein the port performs an important function in a feed-through buffer action.
However, when the existing feed-through buffer device for implantable medical equipment is used, a puncture needle is easy to puncture the inner wall of an implanted base and cannot reduce the internal pressure of the implanted base, so that the problem that the internal pressure of the implanted base is too high during infusion and blood vessel infusion of a patient is uncomfortable is easily caused.
Disclosure of Invention
The invention aims to provide a feed-through buffer device for implantable medical equipment, which solves the problems that when the existing feed-through buffer device for implantable medical equipment proposed in the background art is used, a puncture needle is easy to puncture the inner wall of an implanted base, and the reduction of the internal pressure of the implanted base cannot be realized, so that the internal pressure of the implanted base is too high during transfusion, and the blood vessel transfusion discomfort of a patient is easy to cause.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an implantable medical equipment is with buffer that feeds through, is including implanting base, puncture cover and infusion pipe, puncture cover embedding is installed implant the outside top of base, the infusion pipe embedding is installed implant base outer wall one side, implant base internally mounted has complementary unit, steady flow mechanism is installed in the embedding of the inside one side of infusion pipe, pressure regulating mechanism is installed in the inside embedding of complementary unit, complementary unit is used for avoiding the puncture to implant the base inner wall and cause to stab, steady flow mechanism is used for right implant the base and infuse and draw blood the function, pressure regulating mechanism is used for maintaining implant the constancy of the inside pressure of base.
Further, complementary unit is including preventing stinging fender roller, convex branch cover, composite fiber glue film, elastic rubber ball, damping gasbag gum cover and regulation post, prevent that the stabbing fender roller evenly rotates to be installed implant the base inner wall, convex branch cover embedding is installed implant base inner wall bottom middle part, composite fiber glue film embedding is installed puncture set bottom, the even embedding of elastic rubber ball is installed inside the composite fiber glue film, damping gasbag gum cover embedding is installed implant base outer wall bottom, it installs to adjust the post run through convex branch cover with inside the damping gasbag gum cover.
Further, the inside middle part embedding of puncture cover installs the silica gel diaphragm, it corresponds to implant the base inner wall convex branch cover bottom edge has seted up the annular groove stationary flow mechanism includes water conservancy diversion side cover, piston post, guiding gutter, sealed fender ring, plectrum, compression spring, U type guide arm and barb, water conservancy diversion side cover embedding is installed inside one side of infusion pipe, piston post activity embedding is installed the inside middle part of infusion pipe, the guiding gutter runs through to be seted up inside the water conservancy diversion side cover, sealed fender ring rotates to be installed piston post top, the plectrum is evenly installed sealed fender ring outer wall edge.
Furthermore, the compression spring is sleeved at the joint of the bottom end of the piston column and the inner wall of the infusion catheter.
Further, the U type guide arm is installed compression spring bottom both sides, just the barb is evenly installed U type guide arm bottom corresponds guiding gutter inner wall position department.
Further, pressure regulating mechanism includes guide pipe box, supporting spring, activity sliding sleeve, support arm and reset spring, the guide pipe box cup joint in adjust the outside middle part of post, supporting spring installs adjust capital end both sides, the activity sliding sleeve cup joints to be installed adjust the post outside, support arm movable mounting be in the outside both sides of activity sliding sleeve, reset spring embedding is installed the inside both sides of damping gasbag gum cover.
Further, the infusion catheter is fixedly connected with the fixed pipe sleeve through threads, and a sealing rubber ring is sleeved and installed inside the fixed pipe sleeve.
Further, the damping air bag rubber sleeve and the convex branch sleeve are uniformly provided with air holes, and the damping air bag rubber sleeve is made of medical silica gel.
Furthermore, lubricating grease lantern rings are installed on two sides of the interior of the guide pipe sleeve.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, by arranging the auxiliary mechanism, when the puncture needle is inserted into the silica gel membrane at the top end of the implantation base and enters the implantation base for transfusion or blood drawing, the two sides of the puncture needle can be supported and fixed through the elastic rubber ball in the composite fiber rubber layer, so that the vertical puncture of the puncture needle is favorably ensured, and the puncture needle is prevented from being punctured on the inner wall of the implantation base by the puncture needle through the contact of the puncture preventing roller and the puncture needle point, so that the safety performance of the implantation base during puncture transfusion or blood drawing when the implantation base is implanted in a patient body is ensured.
Through being provided with the stationary flow mechanism, when implanting the base and infusing to patient's internal blood vessel through the infusion pipe, can open the guiding gutter through the extrusion of liquid medicine to the sealed fender ring in piston post top, when implanting the base and taking a blood sample to the patient through the infusion pipe, can remove sealed fender ring and plectrum to the opposite side under the effect of negative pressure, open the guiding gutter, and can reset sealed position department that keeps off the ring through compression spring, thereby realized the two-way closure to the infusion pipe, the leakproofness of device when infusion or blood sampling has been guaranteed, cooperate U type guide arm department barb to strike off inside the guiding gutter simultaneously, blood has been solved and has taken place to solidify the bonding in the guiding gutter easily, cause the inside problem of taking place to block up of infusion pipe.
Through being provided with pressure regulating mechanism, when implanting the inside pressure of base too big, through the inside control post of extrusion convex branch cover under the effect of pressure differential, send into the inside unnecessary gas of convex branch cover inside to damping gasbag gum cover, and cooperate movable sliding sleeve and support arm to the support of convex branch cover, the fastness of implanting the base bottom at the installation of skin department has been increased, and can reset the device through supporting spring and reset spring's effect, thereby realized the reduction to implanting the inside pressure of base, implant the inside pressure of base too big when having solved the infusion, cause the uncomfortable problem of patient's blood vessel infusion easily.
Drawings
FIG. 1 is a schematic structural diagram according to an embodiment of the present invention;
FIG. 2 is a schematic view of the interior of the implant base of the embodiment of FIG. 1;
FIG. 3 is a schematic view of the interior of the male brace of the embodiment of FIG. 1;
FIG. 4 is a schematic structural diagram of a flow stabilizing mechanism in the embodiment of FIG. 1;
fig. 5 is a schematic structural diagram of the pressure regulating mechanism in the embodiment of fig. 1.
Reference numerals: 1. implanting into a base; 2. a puncture sleeve; 3. a silica gel membrane; 4. fixing the pipe sleeve; 5. an infusion catheter; 6. an auxiliary mechanism; 601. a stab-resistant stop roller; 602. a convex support sleeve; 603. a composite fiber glue layer; 604. elastic rubber balls; 605. a damping airbag rubber sleeve; 606. an adjustment column; 7. a flow stabilizing mechanism; 701. a flow guide side sleeve; 702. a piston post; 703. a diversion trench; 704. a sealing baffle ring; 705. a shifting sheet; 706. a compression spring; 707. a U-shaped guide rod; 708. a barb; 8. a pressure regulating mechanism; 801. a guide pipe sleeve; 802. a support spring; 803. a movable sliding sleeve; 804. a support arm; 805. a return spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a feed-through buffer device for implantable medical devices includes an implantation base 1, a puncture sleeve 2 and an infusion tube 5, the puncture sleeve 2 is embedded in the top end of the implantation base 1, the infusion tube 5 is embedded in one side of the outer wall of the implantation base 1, an auxiliary mechanism 6 is installed in the implantation base 1, a flow stabilizing mechanism 7 is embedded in one side of the interior of the infusion tube 5, and a pressure regulating mechanism 8 is embedded in the interior of the auxiliary mechanism 6.
The auxiliary mechanism 6 comprises a puncture-proof blocking roller 601, a convex support sleeve 602, a composite fiber glue layer 603, an elastic glue ball 604, a damping air bag glue sleeve 605 and an adjusting column 606, wherein the puncture-proof blocking roller 601 is uniformly installed on the inner wall of the implanted base 1 in a rotating manner, the convex support sleeve 602 is installed in the middle of the bottom end of the inner wall of the implanted base 1 in an embedded manner, the composite fiber glue layer 603 is installed at the bottom end of the puncture sleeve 2 in an embedded manner, the elastic glue ball 604 is uniformly installed in the composite fiber glue layer 603 in an embedded manner, the damping air bag glue sleeve 605 is installed at the bottom end of the outer wall of the implanted base 1 in an embedded manner, air holes are uniformly formed between the damping air bag glue sleeve 605 and the convex support sleeve 602, the damping air bag glue sleeve.
When the puncture needle is inserted into the silica gel membrane 3 implanted on the top end of the base 1 and enters the interior of the base 1 for transfusion or blood drawing, the two sides of the puncture needle can be supported and fixed by the elastic rubber ball 604 in the composite fiber rubber layer 603, which is beneficial to ensuring the vertical puncture of the puncture needle, and the puncture needle can be prevented from being punctured by the puncture needle due to the puncture needle through the contact between the puncture prevention roller 601 and the puncture needle point, and the puncture base 1 can be ensured to be punctured for transfusion or blood drawing when implanted in the body of a patient.
The middle part of the interior of the puncture sleeve 2 is embedded with a silica gel diaphragm 3, the edge of the inner wall of the implantation base 1 corresponding to the bottom end of the convex support sleeve 602 is provided with an annular groove, the flow stabilizing mechanism 7 comprises a flow guide side sleeve 701, a piston column 702, a flow guide groove 703, a sealing baffle ring 704, a poking sheet 705, a compression spring 706, a U-shaped guide rod 707 and a barb 708, the flow guide side sleeve 701 is embedded and installed at one side of the interior of the infusion catheter 5, the piston column 702 is movably embedded and installed at the middle part of the interior of the infusion catheter 5, the flow guide groove 703 is penetrated and opened in the flow guide side sleeve 701, the sealing baffle ring 704 is rotatably installed at the top end of the piston column 702, the poking sheet 705 is uniformly installed at the edge of the outer wall of the sealing baffle ring 704, and the barbs 708 are uniformly arranged at the bottom end of the U-shaped guide rod 707 corresponding to the inner wall of the guide groove 703.
When implanting base 1 and infusing to the internal blood vessel of patient through infusion pipe 5, can open guiding gutter 703 through the extrusion of liquid medicine to piston post 702 top sealing baffle ring 704, when implanting base 1 and blood sampling to the patient through infusion pipe 5, can remove sealing baffle ring 704 and plectrum 705 to the opposite side under the effect of negative pressure, open guiding gutter 703, and can reset the position department of sealing baffle ring 704 through compression spring 706, thereby realized the two-way closure to infusion pipe 5, the leakproofness of device when infusion or blood sampling has been guaranteed, cooperation U type guide arm 707 department barb 708 can scrape inside guiding gutter 703 simultaneously, it solidifies the bonding to have solved blood and has taken place in the inside guiding gutter easily, cause the inside problem of taking place to block up of infusion pipe 5.
The pressure regulating mechanism 8 comprises a guide pipe sleeve 801, supporting springs 802, a movable sliding sleeve 803, a supporting arm 804 and a return spring 805, wherein the guide pipe sleeve 801 is sleeved in the middle of the outside of the adjusting column 606, the supporting springs 802 are installed on two sides of the end part of the adjusting column 606, the movable sliding sleeve 803 is sleeved and installed outside the adjusting column 606, the supporting arm 804 is movably installed on two sides of the outside of the movable sliding sleeve 803, and the return spring 805 is embedded and installed on two sides of the inside of the damping air bag rubber sleeve 605.
When the internal pressure of the implanted base 1 is too high, the excessive gas in the convex branch sleeve 602 is sent into the damping air bag rubber sleeve 605 by extruding the adjusting column 606 in the convex branch sleeve 602 under the action of pressure difference, and the movable sliding sleeve 803 and the supporting arm 804 are matched to support the convex branch sleeve 602, so that the firmness of the bottom end of the implanted base 1 in the skin position is improved, the device can be reset under the action of the supporting spring 802 and the reset spring 805, the internal pressure of the implanted base 1 is reduced, the problem that the blood vessel transfusion of a patient is uncomfortable due to the fact that the internal pressure of the implanted base 1 is too high during transfusion is solved.
In order to ensure the tightness and firmness of the connection between the infusion catheter 5 and the implantation base 1, the infusion catheter 5 is fixedly connected with the fixed pipe sleeve 4 through threads, and a sealing rubber ring is sleeved and installed inside the fixed pipe sleeve 4.
In order to reduce the friction force of the adjusting column 606 during movement in the guide sleeve 801 and ensure the stability of the adjusting column 606 during operation, lubricating grease collars are mounted on two sides in the guide sleeve 801.
In summary, when the feed-through buffering device for the implantable medical device provided by the invention works, firstly, when the puncture needle is inserted into the silica gel membrane 3 at the top end of the implantation base 1 and enters the implantation base 1 for transfusion or blood drawing, the two sides of the puncture needle can be supported and fixed through the elastic rubber ball 604 in the composite fiber rubber layer 603, so that the vertical puncture of the puncture needle is ensured, and the puncture needle is prevented from being punctured by the puncture needle due to the rotation of the puncture-preventing roller 601 through the contact between the puncture-preventing roller 601 and the puncture needle tip.
Then, when the base 1 is implanted to infuse a blood vessel of a patient through the infusion catheter 5, the diversion trench 703 can be opened by extruding the sealing baffle ring 704 at the top end of the piston column 702 through liquid medicine, when the base 1 is implanted to take blood from the patient through the infusion catheter 5, the sealing baffle ring 704 and the shifting piece 705 can be moved to the other side under the action of negative pressure, the diversion trench 703 is opened, and the position of the sealing baffle ring 704 can be reset through the compression spring 706, thereby realizing the bidirectional closing of the infusion catheter 5, ensuring the sealing performance of the device during infusion or blood taking, and simultaneously, the barb 708 at the position of the U-shaped guide rod 707 can scrape the inside of the diversion trench 703.
Finally, when the internal pressure of the implantation base 1 is too high, the excessive gas in the convex support sleeve 602 is sent into the damping airbag rubber sleeve 605 by extruding the adjusting column 606 in the convex support sleeve 602 under the action of pressure difference, and the movable sliding sleeve 803 and the supporting arm 804 are matched to support the convex support sleeve 602, so that the firmness of the bottom end of the implantation base 1 in the skin is improved, the device can be reset through the action of the supporting spring 802 and the reset spring 805, and the internal pressure of the implantation base 1 is reduced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.