CN106422049B - Bridging bracket based on blood circulation temporary recovery and processing method thereof - Google Patents
Bridging bracket based on blood circulation temporary recovery and processing method thereof Download PDFInfo
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- CN106422049B CN106422049B CN201610964896.4A CN201610964896A CN106422049B CN 106422049 B CN106422049 B CN 106422049B CN 201610964896 A CN201610964896 A CN 201610964896A CN 106422049 B CN106422049 B CN 106422049B
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- blood vessel
- clamping arm
- sleeve joint
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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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
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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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
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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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0413—Blood
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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
- A61M2207/00—Methods of manufacture, assembly or production
-
- 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
- A61M2210/00—Anatomical parts of the body
- A61M2210/12—Blood circulatory system
Abstract
The invention discloses a bridging bracket based on blood circulation temporary recovery, which comprises two unit anastomats respectively sleeved at two ends of an infusion tube, wherein each unit anastomat comprises a blood vessel sleeve joint, a blood vessel sleeve is arranged at the free end of the blood vessel sleeve joint, and the blood vessel sleeve joint is provided with a channel for communicating the blood vessel with the infusion tube; the blood vessel sleeve joint is sleeved with a blood vessel clamping fixer, the blood vessel clamping fixer comprises a sub-clamping arm and a mother clamping arm, and the sub-clamping arm and the mother clamping arm are buckled on the peripheral wall of a blood vessel. Meanwhile, the processing method of the patent product is also disclosed, and the main part is molded by elastic material, and then is deburred and smoothed; and the infusion tube are sequentially assembled together. The invention has the advantages of quickly and accurately supplying blood to the blood vessel of the severed limb, solving the problem that the severed limb loses blood supply after the limb is severed, recovering the blood circulation of the distal severed limb in time, reducing the thermal ischemia time, avoiding the necrosis of the severed limb, and having the characteristics of reasonable structural layout, high matching precision of various mechanisms, safety and high efficiency.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a temporary blood vessel bypass used in limb blood vessel treatment, and specifically relates to a bridging stent based on blood circulation temporary recovery and a processing method thereof.
Background
At present, the modern industrial mechanical accidents, serious car accidents, earthquakes, battlefield first-aid and the like are frequently suffered from serious damage and injury to limbs and large arteriovenous systems, and the blood supply of the far-end limbs is interrupted even the limbs are disconnected. In the treatment of such patients, it is desirable to restore the main arteriovenous to restore blood circulation in the distal limb as early as possible, reduce warm ischemia time, and avoid necrosis of the large limb. However, in the current wound emergency treatment process at home and abroad, a simple, convenient and reliable blood circulation temporary recanalization system cannot be provided, so that the basic medical unit cannot effectively treat the wound patients. In a conventional rescue procedure: first-line emergency personnel can only temporarily and simply ligate injured blood vessels, stop bleeding and then transfer the injured blood vessels to a superior central hospital for treatment. The hot ischemia time of limbs is prolonged; even in the medical unit of the conditional treatment technology, complicated debridement, fracture fixation and repair of various soft tissues are often required before the repair of blood vessels is performed in the treatment of such patients. This process often takes 3-5 hours to perform. Whereas the ischemia-resistant time of the musculature of the large limb is only 6 to 8 hours, e.g. beyond this time, even if the limb survives, necrosis and lysis bring about a series of serious complications due to reperfusion injury of a large amount of musculature. The traditional treatment procedure causes a great number of patients and wounded persons to miss the treatment time, but the amputation is serious and the life is threatened. Therefore, how to recover the blood supply of the limbs in seconds is very important for the success of the treatment of the injuries and the patients and the survival quality of the limbs, and a blood circulation temporary recanalization system is urgently needed in the operation process before the real blood vessel transplantation and repair so as to shorten the time of recanalization of the limbs and improve the survival quality of the limbs.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the bridging bracket which is reasonable in structural layout, high in matching precision of all mechanisms, capable of restoring blood supply of the far-end limb before rescue, remarkably shortening the warm ischemia time and creating conditions for patient transfer rescue based on blood circulation temporary restoration and the processing method thereof aiming at the current situation of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the bridging bracket comprises two unit anastomats which are respectively sleeved at two ends of an infusion tube, each unit anastomat comprises a blood vessel sleeve joint, a blood vessel sleeve is arranged at the free end of the blood vessel sleeve joint, and the blood vessel sleeve joint is provided with a channel for communicating the blood vessel with the infusion tube; the blood vessel sleeve joint is sleeved with a blood vessel clamping fixer, the blood vessel clamping fixer comprises a sub-clamping arm and a mother clamping arm, and the sub-clamping arm and the mother clamping arm are buckled on the peripheral wall of a blood vessel.
In order to optimize the technical scheme, the adopted measures further comprise:
foretell son arm lock includes that the son buckles, and female arm lock includes the box, and the son is buckled and is protruding structure, and the box is groove structure, and son is buckled interference fit and is detained in the box.
The blood vessel clamping fixer comprises a stabilizing seat, the stabilizing seat comprises a guide hole, the blood vessel sleeve joint is arranged in the guide hole, and the sub-clamping arm and the main clamping arm are rotatably connected to the stabilizing seat.
Foretell sub-arm lock includes sub-U type portion, and female arm lock includes female U type portion, and sub-U type portion and the subtend of female U type portion are pasted in blood vessel periphery wall, and the clearance between blood vessel socket joint and sub-U type portion and the female U type portion is greater than 0.2mm respectively.
The secondary clamping arm comprises a secondary rotating end rotatably connected with the stabilizing seat, the primary clamping arm comprises a primary rotating end rotatably connected with the stabilizing seat, and the stabilizing seat comprises a limiting shoulder attached to the primary rotating end.
The limiting shoulder comprises a vertically arranged elastic sheet, the female clamping arm is attached to the inner wall of the elastic sheet, and the female clamping arm is arranged between the elastic sheet and the blood vessel sleeve joint.
The limiting shoulder comprises an inclined chute, the top of the inclined chute is attached to the rotating end of the sub-chute, and the bottom of the inclined chute is provided with an opening on the outer wall of the stabilizing seat.
The blood vessel sleeve joint comprises a stabilizing groove annularly arranged on the periphery, the diameter of the stabilizing groove is equal to the aperture of the guide hole, and the minimum diameter of the blood vessel sleeve joint from the stabilizing groove to a section of the infusion tube is larger than the aperture of the guide hole; the maximum diameter of the blood vessel sleeve joint from the stabilizing groove to the end deep into the blood vessel is smaller than the aperture of the guide hole.
Foretell blood vessel cover connects establishes the fixed slot in the periphery including the ring, and the fixed slot matches with female U type portion and son U type portion mutually respectively, and blood vessel cover connects still including the stopper awl, and the stopper awl is the toper and tapers gradually.
The method for processing the bridging stent based on the temporary recovery use of blood circulation comprises the following steps:
primary forming of the main part: compression molding the elastic material to prepare a sub-clamping arm, a main clamping arm, a stable seat and a blood vessel sleeve joint, wherein the infusion tube is a medical silicone tube or a PVC tube;
surface treatment: deburring and chamfering the subsidiary clamping arm, the main clamping arm, the stabilizing seat and the blood vessel sleeve joint, smoothing the inner wall of the blood vessel sleeve joint, smoothing the outer peripheral wall from the stabilizing groove to the plug cone section, including smoothing the outer peripheral wall of the plug cone, and finally reserving a 0.2mm gap between the subsidiary U-shaped part and the main U-shaped part and a sleeve when the subsidiary U-shaped part and the main U-shaped part are mutually buckled;
assembling: the female clamping arm is sleeved in from the inclined channel, is finally connected with the stabilizing seat in a rotating mode and is tightly attached to the inner side face of the elastic sheet, the male clamping arm is sleeved in from the inclined channel and is finally connected with the stabilizing seat in a rotating mode, and the U-shaped portion of the male clamping arm and the U-shaped portion of the female clamping arm are oppositely arranged; communicating one end of the blood vessel sleeve joint with one end of an infusion tube, inserting the other end of the blood vessel sleeve joint into the guide hole, and enabling the sub U-shaped part and the main U-shaped part to be arranged on two sides of the periphery of the blood vessel sleeve joint; the other end of the infusion tube is also assembled according to the same spare and accessory parts.
Compared with the prior art, the bridging bracket used based on the blood circulation temporary recovery comprises two unit anastomats which are respectively sleeved at the two ends of a transfusion tube, wherein each unit anastomat comprises a blood vessel sleeve joint, a blood vessel sleeve is arranged at the free end of the blood vessel sleeve joint, and the blood vessel sleeve joint is provided with a channel for communicating the blood vessel with the transfusion tube; the blood vessel sleeve joint is sleeved with a blood vessel clamping fixer, the blood vessel clamping fixer comprises a sub-clamping arm and a mother clamping arm, and the sub-clamping arm and the mother clamping arm are buckled on the peripheral wall of a blood vessel. Meanwhile, a processing method of the product is also disclosed, which comprises the steps of carrying out compression molding on the main part by using an elastic material, and then carrying out deburring and smoothing treatment; and the infusion tube are sequentially and integrally assembled. The invention has the advantages of fast and accurate blood supply for the blood vessel of the severed limb, solving the problem that the severed limb loses the blood supply after the limb is severed, recovering the blood circulation of the distal severed limb in time, reducing the thermal ischemia time, avoiding the necrosis of the severed limb, along with reasonable structural layout, high matching precision of each mechanism, safety and high efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the vascular access joint and vascular clamp anchor of FIG. 1;
FIG. 3 is an exploded schematic view of FIG. 2;
FIG. 4 is a schematic view of the middle vessel clamp anchor of FIG. 2 in an expanded state;
FIG. 5 is a schematic view of the structure of FIG. 4;
FIG. 6 is a schematic view of the stabilizer base of FIG. 2;
FIG. 7 is a schematic view of the vascular access joint of FIG. 2 shown in a separated state from the vascular clamp anchor;
FIG. 8 is a schematic of the three-dimensional structure of FIG. 7;
FIG. 9 is a schematic view of the process of the present invention.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Fig. 1 to 9 are schematic structural views of the present invention.
Wherein the reference numerals are: 1 blood vessel sleeve joint, 1a stabilizing groove, 1b fixing groove, 1c plug cone, 2 blood vessel clamping fixer, 21 stabilizing seat, 21a guiding hole, 211 limiting shoulder, 211a elastic sheet, 211b inclined way, 22 subsidiary clamping arm, 22a subsidiary buckle, 22b subsidiary U-shaped part, 22c subsidiary rotating end, 23 subsidiary clamping arm, 23a subsidiary buckle, 23b subsidiary U-shaped part, 23c subsidiary rotating end and 3 transfusion tube.
Fig. 1 to 9 are schematic structural views of the present invention, and as shown in the drawings, the bridging bracket for temporary blood circulation rehabilitation of the present invention includes two unit anastomats respectively sleeved at two ends of an infusion tube 3, each unit anastomat includes a blood vessel sleeve joint 1, a blood vessel sleeve is disposed at a free end of the blood vessel sleeve joint 1, and the blood vessel sleeve joint 1 is provided with a channel for communicating a blood vessel and the infusion tube 3; the blood vessel sleeve joint 1 is sleeved with a blood vessel clamping fixer 2, the blood vessel clamping fixer 2 comprises a sub-clamping arm 22 and a mother clamping arm 23, and the sub-clamping arm 22 and the mother clamping arm 23 are buckled on the peripheral wall of a blood vessel. When the blood vessel fixing device is used, a blood vessel is sleeved at the free end of the blood vessel sleeve joint 1, and then the sub-clamping arms 22 and the main clamping arms 23 are buckled on the peripheral wall of the blood vessel to fix the blood vessel, so that a blood vessel fracture at the near end of a body is communicated with a blood vessel fracture at the far end where a disconnected limb is located.
In an embodiment, as shown in fig. 2 and 3, the sub-clip arm 22 includes a sub-clip 22a, the female clip arm 23 includes a female clip 23a, the sub-clip 22a is a protrusion structure, the female clip 23a is a groove structure, and the sub-clip 22a is in interference fit with the female clip 23 a. The buckling structure of the male buckle 22a and the female buckle 23a can prevent the male clamping arm 22 and the female clamping arm 23 from being separated due to vibration.
In the embodiment, as shown in fig. 1 to 8, the vascular clamping fixator 2 comprises a stabilizing base 21, the stabilizing base 21 comprises a guide hole 21a, the vascular cuff connector 1 is placed in the guide hole 21a, and the sub-clamping arm 22 and the female clamping arm 23 are rotatably connected to the stabilizing base 21. The guide hole 21a can help the blood vessel clamping fixer 2 move axially on the blood vessel sleeve joint 1, and is convenient for adjusting the depth of the blood vessel sleeve joint 1 which is deep into the blood vessel. The sub-arm 22, the main arm 23 and the stabilizing base 21 are detachable, that is, the stabilizing base 21 is provided with at least two axial holes on the side, the sub-arm 22 and the main arm 23 are respectively connected in the axial holes in a rotating manner, and in addition, the sub-arm 22, the main arm 23 and the stabilizing base 21 can also be integrally formed.
In the embodiment, as shown in fig. 1, 3 and 8, the sub-clip arm 22 includes a sub-U-shaped portion 22b, the female clip arm 23 includes a female U-shaped portion 23b, the sub-U-shaped portion 22b and the female U-shaped portion 23b are attached to the peripheral wall of the blood vessel in an opposite manner, and the gaps between the vascular graft 1 and the sub-U-shaped portion 22b and the female U-shaped portion 23b are respectively greater than 0.2 mm. The child U-shaped portion 22b and the mother U-shaped portion 23b are in opposite arc shapes and are attached to the peripheral wall of the blood vessel, and the gaps between the vascular graft joint 1 and the child U-shaped portion 22b and the mother U-shaped portion 23b are larger than 0.2mm, respectively, in order to avoid crushing the blood vessel.
In an embodiment, as shown in fig. 1, 5 and 8, the secondary arm 22 includes a secondary rotating end 22c rotatably connected to the stable seat 21, the primary arm 23 includes a primary rotating end 23c rotatably connected to the stable seat 21, the stable seat 21 includes a limiting shoulder 211, and the limiting shoulder 211 is attached to the primary rotating end 23 c. Female arm lock 23 can receive the effect of the frictional force of spacing shoulder 211 at the pivoted in-process, and spacing shoulder 211 can prevent rocking of female arm lock 23. When the blood vessel sleeve joint 1 is inserted into a blood vessel, the female clamping arm 23 presses the blood vessel in advance, and then the male clamping arm 22 is matched with the female clamping arm 23 to press the blood vessel at the same time.
In an embodiment, as shown in fig. 5, 6 and 8, the limiting shoulder 211 includes a spring piece 211a vertically disposed, the female clip arm 23 is attached to an inner wall of the spring piece 211a, and the female clip arm 23 is disposed between the spring piece 211a and the vascular cuff connector 1. Can receive the reaction force of shell fragment 211a when female arm lock 23 changes from vascular sleeve joint 1 for female arm lock 23 rebounds vascular sleeve joint 1, thereby makes female arm lock 23 can effectively push down the blood vessel, avoids loosening from the blood vessel because of external vibrations or touching make female arm lock 23. If the elastic sheet 211a is not provided, the blood vessel is easily separated from the vascular cuff connector 1 again due to external shaking in the process of buckling the sub-clamping arm 22 and the female clamping arm 23.
In an embodiment, as shown in fig. 1, 2, 3, 5, 6 and 8, the stop shoulder 211 comprises a chute 211b, the top of the chute 211b is attached to the sub-rotating end 22c, and the bottom of the chute 211b is open to the outer wall of the stabilizing base 21. The inclined channel 211b is arranged in a way of inclining downwards, so that the assembly of the sub-clamping arm 22 and the female clamping arm 23 is facilitated, and on the other hand, the rotating amplitude of the sub-clamping arm 22 is increased, and the operation space is enlarged; the top of the inclined channel 211b is attached to the rotating end 22c, so that the stability of the clamping arms 22 can be enhanced after the clamping arms 22 are fastened with the female clamping arms 23, and the loosening of the clamping arms 22 due to external vibration is prevented; once the sub-arm 22 is separated from the female arm 23, the rotating end 22c is separated from the top of the inclined channel 211b, which reduces the resistance to rotation of the sub-arm 22 and facilitates the opening and closing of the sub-arm 22. The maximum opening and closing angle limited by the limited shoulder when the sub-clamping arm is opened and closed upwards is 120 degrees, and the maximum opening and closing angle when the main clamping arm is opened and closed downwards is 15 degrees.
In the embodiment, as shown in fig. 3, 7 and 8, the blood vessel joint 1 includes a stabilizing groove 1a annularly arranged on the periphery, the diameter of the stabilizing groove 1a is equal to the aperture of the guiding hole 21a, and the minimum diameter of the blood vessel joint 1 located at the stabilizing groove 1a to a section of the infusion tube 3 is larger than the aperture of the guiding hole 21 a; the maximum diameter of the blood vessel sleeve joint 1 from the stabilizing groove 1a to the deep blood vessel end is smaller than the aperture of the guide hole 21 a. The stabilizing seat 21 can move axially along the blood vessel sleeve joint 1, and when the guide hole 21a moves to the position of the stabilizing groove 1a, the stabilizing seat 21 is fixedly connected with the blood vessel sleeve joint 1, so that the blood vessel clamping fixator 2 is prevented from sliding and twisting on the blood vessel in the using process.
In the embodiment, as shown in fig. 3, 7 and 8, the blood vessel sleeve joint 1 includes a fixing groove 1b annularly arranged on the periphery, the fixing groove 1b is respectively matched with the female U-shaped portion 23b and the sub-U-shaped portion 22b, the blood vessel sleeve joint 1 further includes a plug cone 1c, and the plug cone 1c is in a tapered shape. The sub U-shaped part 22b and the main U-shaped part 23b press the blood vessel in the fixing groove 1b together, so that the blood vessel and the vascular sleeve joint 1 are prevented from sliding relatively. The plug cone 1c facilitates the insertion of the blood vessel sleeve joint 1 into a blood vessel.
The method for processing the bridging stent based on the blood circulation temporary recovery use, as shown in fig. 9, comprises the following steps:
primary forming of the main part: raw materials of elastic materials (such as polyvinyl chloride) are molded into a shape by compression to prepare a sub-clamping arm 22, a main clamping arm 23, a stable seat 21 and a blood vessel sleeve joint 1, and a medical silicone tube or a PVC tube is used for the infusion tube 3;
surface treatment: deburring and chamfering treatment is carried out on the sub-clamping arm 22, the mother clamping arm 23, the stabilizing seat 21 and the blood vessel sleeve joint 1, the inner wall of the blood vessel sleeve joint 1 is subjected to smoothing treatment, the peripheral wall from the stabilizing groove 1a to the plug cone 1c section is subjected to smoothing treatment, including the peripheral wall of the plug cone 1c, and finally a 0.2mm gap is reserved between the sub-U-shaped part 22b and the mother U-shaped part 23b and the sleeve in a mutually buckled state; a gap of 0.2mm is reserved to prevent the sub U-shaped part 22b and the mother U-shaped part 23b from crushing blood vessels.
Assembling: the female clamping arm 23 is sleeved in from the inclined way 211b, is finally connected with the stabilizing seat 21 in a rotating mode and is tightly attached to the inner side face of the elastic sheet 211a, the male clamping arm 22 is sleeved in from the inclined way 211b and is finally connected with the stabilizing seat 21 in a rotating mode, and the male U-shaped part 22b and the female U-shaped part 23b are arranged in opposite directions; one end of the blood vessel sleeve joint 1 is communicated with one end of the infusion tube 3, the other end of the blood vessel sleeve joint 1 is inserted into the guide hole 21a, and the sub U-shaped part 22b and the main U-shaped part 23b are arranged at two sides of the periphery of the blood vessel sleeve joint 1; the other end of the transfusion tube 3 is also assembled according to the same spare and accessory parts.
While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by one skilled in the art without departing from the scope of the invention.
Claims (4)
1. The bridging bracket based on the blood circulation temporary recanalization comprises two unit anastomats which are respectively sleeved at two ends of a perfusion tube (3), wherein each unit anastomat comprises a blood vessel sleeve joint (1), a blood vessel sleeve is arranged at the free end of the blood vessel sleeve joint (1), and the blood vessel sleeve joint (1) is provided with a channel for communicating the blood vessel and the perfusion tube (3); the blood vessel sleeve joint (1) is sleeved with a blood vessel clamping fixer (2), and is characterized in that: the blood vessel clamping fixer (2) comprises a sub-clamping arm (22) and a mother clamping arm (23), when in use, a blood vessel is sleeved at the free end of the blood vessel sleeve joint (1), and then the sub-clamping arm (22) and the mother clamping arm (23) are buckled on the peripheral wall of the blood vessel to fix the blood vessel, so that a blood vessel fracture at the near end of a body is communicated with a blood vessel fracture at the far end where an amputated limb is located;
The auxiliary clamping arm (22) comprises an auxiliary buckle (22a), the female clamping arm (23) comprises a female buckle (23a), the auxiliary buckle (22a) is of a convex structure, the female buckle (23a) is of a groove structure, and the auxiliary buckle (22a) is in interference fit with the female buckle (23 a);
the blood vessel clamping fixator (2) comprises a stabilizing seat (21), the stabilizing seat (21) comprises a guide hole (21a), the blood vessel sleeve joint (1) is arranged in the guide hole (21a), and the sub-clamping arm (22) and the main clamping arm (23) are rotationally connected to the stabilizing seat (21);
the sub-clamping arm (22) comprises a sub-U-shaped part (22b), the female clamping arm (23) comprises a female U-shaped part (23b), the sub-U-shaped part (22b) and the female U-shaped part (23b) are attached to the peripheral wall of a blood vessel in an opposite mode, and gaps among the blood vessel sleeve joint head (1), the sub-U-shaped part (22b) and the female U-shaped part (23b) are respectively larger than 0.2 mm;
the secondary clamping arm (22) comprises a secondary rotating end (22c) rotatably connected with the stabilizing seat (21), the primary clamping arm (23) comprises a primary rotating end (23c) rotatably connected with the stabilizing seat (21), the stabilizing seat (21) comprises a limiting shoulder (211), and the limiting shoulder (211) is attached to the primary rotating end (23 c); when the blood vessel sleeve joint (1) is inserted into a blood vessel, the female clamping arm (23) presses the blood vessel in advance, and then the sub-clamping arm (22) is matched with the female clamping arm (23) to simultaneously press the blood vessel;
The limiting shoulder (211) comprises a spring plate (211a) which is vertically arranged, the female clamping arm (23) is attached to the inner wall of the spring plate (211a), and the female clamping arm (23) is arranged between the spring plate (211a) and the blood vessel sleeve joint (1);
the limiting shoulder (211) comprises a chute (211b), the top of the chute (211b) is attached to the sub-rotating end (22c), and the bottom of the chute (211b) is opened on the outer wall of the stabilizing seat (21).
2. The bridge stent for temporary blood circulation-based reuse according to claim 1, wherein: the blood vessel sleeve joint (1) comprises a stabilizing groove (1a) annularly arranged on the periphery, the diameter of the stabilizing groove (1a) is equal to the aperture of the guide hole (21a), and the minimum diameter of the section of the blood vessel sleeve joint (1) from the stabilizing groove (1a) to the infusion tube (3) is larger than the aperture of the guide hole (21 a); the maximum diameter of the blood vessel sleeve joint (1) from the stabilizing groove (1a) to the deep blood vessel end is smaller than the aperture of the guide hole (21 a).
3. The blood circulation temporary restitution-based bridging stent of claim 2, wherein: the blood vessel socket joint (1) comprises a fixing groove (1b) annularly arranged on the periphery, the fixing groove (1b) is respectively matched with the female U-shaped part (23b) and the sub-U-shaped part (22b), the blood vessel socket joint (1) further comprises a plug cone (1c), and the plug cone (1c) is in a conical tapered shape.
4. A method of manufacturing a blood circulation temporary return use-based bridging stent according to claim 3, comprising: the method comprises the following steps:
primary forming of the main part: the elastic material is molded into a sub-clamping arm (22), a main clamping arm (23), a stabilizing seat (21) and a blood vessel sleeve joint (1), and the infusion tube (3) adopts a medical silicone tube or a PVC tube;
surface treatment: deburring and chamfering treatment are carried out on a sub-clamping arm (22), a mother clamping arm (23), a stabilizing seat (21) and a blood vessel sleeve joint (1), the inner wall of the blood vessel sleeve joint (1) is subjected to smoothing treatment, the peripheral wall from a stabilizing groove (1a) to a plug cone (1c) section is subjected to smoothing treatment, the peripheral wall of the plug cone (1c) is also subjected to smoothing treatment, and finally a 0.2mm gap is reserved between the sub-U-shaped part (22b) and the mother U-shaped part (23b) and a sleeve in a mutually buckled state;
assembling: the female clamping arm (23) is sleeved from the chute (211b), is finally connected with the stable seat (21) in a rotating mode and is tightly attached to the inner side surface of the elastic sheet (211a), the male clamping arm (22) is sleeved from the chute (211b) and is finally connected with the stable seat (21) in a rotating mode, and the male U-shaped part (22b) and the female U-shaped part (23b) are arranged in an opposite mode; one end of the blood vessel sleeve joint (1) is communicated with one end of the infusion tube (3), the other end of the blood vessel sleeve joint (1) is inserted into the guide hole (21a), and the sub U-shaped part (22b) and the main U-shaped part (23b) are arranged on two sides of the periphery of the blood vessel sleeve joint (1); the other end of the transfusion tube (3) is also assembled according to the same spare and accessory parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610964896.4A CN106422049B (en) | 2016-10-31 | 2016-10-31 | Bridging bracket based on blood circulation temporary recovery and processing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610964896.4A CN106422049B (en) | 2016-10-31 | 2016-10-31 | Bridging bracket based on blood circulation temporary recovery and processing method thereof |
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| CN106422049A CN106422049A (en) | 2017-02-22 |
| CN106422049B true CN106422049B (en) | 2022-07-19 |
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| CN117159068B (en) * | 2023-11-01 | 2024-02-06 | 泓欣科创(北京)科技有限公司 | Vascular bridging assembly |
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