CN110652376A - Artificial blood vessel reconstruction device for liver transplantation - Google Patents
Artificial blood vessel reconstruction device for liver transplantation Download PDFInfo
- Publication number
- CN110652376A CN110652376A CN201910915233.7A CN201910915233A CN110652376A CN 110652376 A CN110652376 A CN 110652376A CN 201910915233 A CN201910915233 A CN 201910915233A CN 110652376 A CN110652376 A CN 110652376A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- supporting
- support
- sliding groove
- guide rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000004204 blood vessel Anatomy 0.000 title claims abstract description 70
- 239000002473 artificial blood Substances 0.000 title claims abstract description 57
- 210000004185 liver Anatomy 0.000 title claims abstract description 38
- 238000002054 transplantation Methods 0.000 title claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000010079 rubber tapping Methods 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000002440 hepatic effect Effects 0.000 abstract description 7
- 210000002989 hepatic vein Anatomy 0.000 abstract description 6
- 230000003872 anastomosis Effects 0.000 abstract description 2
- 238000009958 sewing Methods 0.000 abstract 2
- 210000003462 vein Anatomy 0.000 description 10
- 201000007270 liver cancer Diseases 0.000 description 5
- 208000014018 liver neoplasm Diseases 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 2
- 201000011510 cancer Diseases 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 208000007536 Thrombosis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 208000019425 cirrhosis of liver Diseases 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 208000028867 ischemia Diseases 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2240/00—Manufacturing or designing of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2240/001—Designing or manufacturing processes
- A61F2240/002—Designing or making customized prostheses
Landscapes
- Health & Medical Sciences (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
An artificial blood vessel reconstruction device for liver transplantation belongs to the field of medical appliances. The existing hepatic vein reconstruction operation relates to a hepatic blood vessel and artificial blood vessel anastomosis technology which is not perfect. A liver transplantation artificial blood vessel reconstruction device, a supporting component (1) is used as a supporting structure and is positioned at the bottom of the whole set of mechanism, a rotating component (2) is installed on two supporting frames (1 c) of the supporting component (1), and a sliding cutting component (3) is inserted on the rotating component (2). The device for reconstructing the artificial blood vessel for liver transplantation can quickly complete the positioning, opening and sewing operations of the artificial blood vessel, greatly improve the efficiency and the accuracy, avoid the risk of internal leakage and complete the sewing operation of the artificial blood vessel by a single person.
Description
Technical Field
The invention relates to a liver transplantation artificial blood vessel reconstruction device.
Background
Primary liver cancer is one of the most common malignant tumors in China, and the incidence rate of the primary liver cancer is increased in recent years. The large liver cancer belongs to middle and late stage liver cancer, has huge tumor, is accompanied by vein invasion or cancer thrombus formation, and is combined with liver cirrhosis of different degrees, so the operation local resection is very difficult. Compared with the whole liver cancer transplantation operation, the operation difficulty is large, the postoperative risk is high, and the advantages of partial living liver transplantation include: the ischemia time is short, the histocompatibility is good, and the preparation is sufficient. The right half liver is one of the main liver supply types for adult living liver transplantation, the reconstruction of a hepatic vein outflow tract is an irrecoverable problem, the precision of hepatic vein reconstruction directly influences the operation result, and the hepatic vein outflow tract mainly consists of a hepatic right vein, a hepatic middle vein branch and a hepatic short vein of a hepatic portal number II. In the hepatic vein reconstruction process, artificial blood vessels are used as main reconstructed blood vessel materials, which are verified clinically in multiple cases, and the postoperative effect is good. The invention designs a liver transplantation artificial blood vessel reconstruction device, which can carry out artificial blood vessel suture reconstruction according to the simulation result before an operation, including main veins and branches thereof, thereby improving the reconstruction precision of the artificial blood vessel, reducing the repair operation time in the operation and improving the whole operation efficiency.
Disclosure of Invention
The invention aims to solve the problem that the existing hepatic vein reconstruction operation related hepatic blood vessel and artificial blood vessel anastomosis technology is not complete, and provides a hepatic transplantation artificial blood vessel reconstruction device.
A liver transplantation artificial blood vessel reconstruction device comprises a supporting component, a rotating component and a sliding cutting component, wherein the supporting component is used as a supporting structure and is positioned at the bottom of the whole set of mechanism;
wherein,
the supporting member comprises a connecting bolt, a supporting end cover, an outer supporting cylinder and an inner supporting cylinder;
the inner support cylinder is sleeved in the outer support cylinder, two ends of the inner support cylinder and two ends of the outer support cylinder are respectively provided with a support end cover, and 2 support end covers are respectively fixed at two ends of the inner support cylinder and two ends of the outer support cylinder through 8 connecting bolts; a group of outer barrel sliding groove long holes are formed in the pipe wall of the outer support barrel along the circumferential direction, a group of inner barrel sliding groove long holes are formed in the pipe wall of the inner support barrel along the circumferential direction, and the positions of the outer barrel sliding groove long holes and the positions of the inner barrel sliding groove long holes on the pipe wall correspond to each other;
the sliding cutting component comprises a guide rod frame, a positioning nut, a sliding groove block and a tapping knife; the sliding groove block and the positioning nut are both of hollow structures, the sliding groove block is provided with external threads, the positioning nut is provided with internal threads, and the sliding groove block and the positioning nut are connected with each other through the threads; the guide rod frame penetrates through the positioning nut and the sliding groove block, the guide rod frame is in clearance fit with the positioning nut and the sliding groove block, and the guide rod frame can slide in the positioning nut and the sliding groove block; after the guide rod frame passes through the positioning nut and the sliding groove block, the front end of the guide rod frame is fixedly installed with the tapping knife; and the tapping knife is cylindrical, and a group of arc-shaped blades are arranged on the end surface of the tapping knife.
The invention has the beneficial effects that:
the cutter of the liver transplantation artificial blood vessel reconstruction device does not participate in the operation of any liver organ, only aims at the artificial blood vessel, performs hole opening on the artificial blood vessel, places the artificial blood vessel on the support frame before the operation, and then uses the hole opening cutter to open the artificial blood vessel.
The liver transplantation artificial blood vessel reconstruction device can position and coincide blood vessels according to a virtual reconstruction result, avoids artificial measurement errors, ensures the coincidence precision of the spatial position relation of the blood vessels and improves the operation efficiency. The special triangular rapid perforating knife can be accurately positioned in the guide groove, and can rapidly perforate the artificial blood vessel, which is different from the traditional manual perforating mode of surgical scissors, the method has more accurate incision position, more tidy incision edge and is convenient for suturing the branch blood vessel, thereby avoiding the condition of blood internal leakage. The hole-opening knife is drawn out, the branch blood vessel is placed to the hole-opening position of the main blood vessel, the liver transplantation artificial blood vessel reconstruction device can be used as a clamp for suturing two blood vessels, the two blood vessels needing to be sutured are supported and fixed, compared with the traditional blood vessel suture, the liver transplantation artificial blood vessel reconstruction device can be completed only by matching at least two persons, the positioning, registering, hole-opening and suturing can be independently completed based on one person of the liver transplantation artificial blood vessel reconstruction device, and the instrument is simple to use.
The invention adopts a sleeve structure that an outer supporting cylinder is matched with an inner supporting cylinder, the outer layer is a cylindrical outer supporting cylinder with a hollow groove and a graduated scale, a positioning device can slide in the groove hole, a sliding cutting component can be locked and fixed on the outer supporting cylinder through a positioning nut on the sliding cutting component, and then a special triangular perforating knife is used for perforating the artificial main vein. The sleeve structure matched with the outer support cylinder and the inner support cylinder can be fixed on the support member and can rotate around the axis, the fixed support is provided with a sliding groove, and the sliding groove block can slide along the direction of the sliding groove.
Positioning nut on the sliding cutting component is a hollow screw structure with threads, and the movement of the positioning nut is realized through rotation, so that the positioning nut is fixed on an outer supporting cylinder to realize the function of accurate positioning, a tapping knife can be inserted into the hollow positioning nut, and the tapping knife is twisted to realize the operation of artificial blood vessels. Three triangular arc-shaped blades are evenly distributed at the end part of the tail end of the specially-made tapping knife, the two sides of the tapping knife are edged, the tapping knife can rotate in two directions, the cutting and operation functions of the artificial blood vessel are achieved, the pre-positioning device is matched for use, and operation in the designated position is performed based on the guide rod frame.
After accomplishing main artificial vein trompil, need further carry out branch's blood vessel and sew up, at first demolish locking device such as outside outer supporting cylinder and relevant slip cutting member, only remain main vein artificial blood vessel and internal support, through the spout piece on the adjustment support, slide to branch's vein trompil department, it is fixed to lock, accomplish branch's blood vessel and main vein artificial blood vessel's fixed, and then can carry out the manual work and sew up, can accomplish artificial blood vessel's location trompil and suture operation fast with the help of a liver transplantation artificial blood vessel rebuilds the device, efficiency and precision have been improved greatly, the risk of interior hourglass has also been avoided, it is single can accomplish artificial blood vessel and sew up the operation.
Drawings
FIG. 1 is a rear side view of a liver transplantation artificial blood vessel reconstruction device according to the present invention;
FIG. 2 is a front side view of the liver transplantation artificial blood vessel reconstruction device according to the present invention;
FIG. 3 is a lower side view of the liver transplantation artificial blood vessel reconstruction device according to the present invention;
FIG. 4 is a front side view of a support member according to the present invention;
FIG. 5 is a front side view of a support member according to the present invention;
FIG. 6 is a front side view of a support member according to the present invention;
FIG. 7 is an exploded view of a support member according to the present invention;
FIG. 8 is a support end cap according to the present invention;
FIG. 9 is an inner support cartridge according to the present invention;
FIG. 10 is an outer support cylinder according to the present invention;
FIG. 11 is a view showing the assembly relationship of the outer support cylinder, the inner support cylinder and the single-side support end cap according to the present invention;
FIG. 12 is a sliding cutting member according to the present invention;
fig. 13 is an exploded view of a sliding cutting member according to the present invention;
FIG. 14 is a retaining nut according to the present invention;
FIG. 15 is a front cross-sectional view of a runner block in accordance with the present invention;
FIG. 16 is a cross-sectional view of FIG. 15;
FIG. 17 is a side view of a runner block in accordance with the present invention;
FIG. 18 is a guide bar housing according to the present invention;
FIG. 19 is a cross-sectional view of the guide rod holder, the positioning nut and the chute block according to the present invention;
FIG. 20 is a tapping knife in accordance with the present invention;
FIG. 21 is a view showing placement of a runner block according to the present invention;
FIG. 22 is a view showing the fitting relationship between the rectangular guide block and the outer cylinder chute slot according to the present invention;
FIG. 23 is a partial cross-sectional view of a rotating member and a sliding cutting member in accordance with the present invention;
fig. 24 is a cross-sectional view showing the measurement of the liver transplantation artificial blood vessel reconstruction device according to the present invention.
Detailed Description
The first embodiment is as follows:
a liver transplantation artificial blood vessel reconstruction device of the present embodiment, as shown in fig. 1-24, the device comprises a supporting member 1, a rotating member 2, and a sliding cutting member 3, wherein the supporting member 1 is located at the bottom of the whole set of mechanism as a supporting structure, the rotating member 2 is installed on two supporting frames 1c of the supporting member 1, and the sliding cutting member 3 is inserted on the rotating member 2;
wherein,
the supporting member 2 comprises a connecting bolt 2a, a supporting end cover 2b, an outer supporting cylinder 2c and an inner supporting cylinder 2 d;
the inner support cylinder 2d is sleeved in the outer support cylinder 2c, two ends of the inner support cylinder 2d and the outer support cylinder 2c are respectively provided with a support end cover 2b, and the 2 support end covers 2b are respectively fixed at two ends of the inner support cylinder 2d and the outer support cylinder 2c through 8 connecting bolts 2 a; a group of outer cylinder chute long holes 2c2 are circumferentially arranged on the tube wall of the outer support tube 2c, a group of inner cylinder chute long holes 2d2 are circumferentially arranged on the tube wall of the inner support tube 2d, and the positions of the outer cylinder chute long holes 2c2 and the inner cylinder chute long holes 2d2 on the tube wall are corresponding;
the sliding cutting component 3 comprises a guide rod frame 3a, a positioning nut 3b, a sliding groove block 3c and a tapping knife 3 d; the sliding groove block 3c and the positioning nut 3b are both of a hollow structure, the sliding groove block 3c is provided with external threads, the positioning nut 3b is provided with internal threads, and the two are connected with each other through the threads; the guide rod frame 3a penetrates through the positioning nut 3b and the sliding groove block 3c, the guide rod frame 3a is in clearance fit with the positioning nut 3b and the sliding groove block 3c, and the guide rod frame 3a can slide in the positioning nut 3b and the sliding groove block 3 c; after the guide rod frame 3a passes through the positioning nut 3b and the sliding groove block 3c, the front end of the guide rod frame 3a is fixedly installed with the tapping knife 3 d; and the tapping knife 3d is cylindrical, the end surface of the tapping knife 3d is provided with a group of arc-shaped blades 3d1, and tapping work on the artificial blood vessel is realized by twisting the tapping knife 3 d.
The second embodiment is as follows:
different from the first embodiment, the artificial blood vessel reconstruction device for liver transplantation of the present embodiment, as shown in fig. 1 to 24, the supporting member 1 further includes a machine leg 1a, a bottom fixing plate 1b, a supporting frame 1c, and a fastening bolt 1 d;
4 machine legs 1a are fixed on the lower surface of the bottom fixing plate 1b, and a support frame 1c is fixed on the upper surface of the bottom fixing plate 1 b; the supporting frame 1c is provided with supporting plates 1c1 on two sides respectively, the supporting plate 1c1 is provided with a fastening hole 1c2 and a rotating hole 1c3, an internal thread is arranged in the fastening hole 1c2, 2 fastening bolts 1d are arranged in the fastening holes 1c2 of the supporting plates 1c1 on two sides of the supporting frame 1c respectively, and the fastening bolts 1d are connected with the fastening holes 1c2 through thread structures.
The third concrete implementation mode:
unlike the first or second embodiment, in the liver transplantation artificial blood vessel reconstruction device of this embodiment, as shown in fig. 1 to 24, the supporting end cap 2b further includes a supporting rotation shaft 2b1, a supporting sleeve 2b2, an end cap bolt hole 2b3, and an end cap fastening ring 2b 4;
one side of the end cover fastening ring 2b4 is connected with a supporting rotating shaft 2b1, the other side of the end cover fastening ring 2b4 is connected with a supporting sleeve 2b2, 4 end cover bolt holes 2b3 are uniformly distributed at the circumferential position of the tail end of the supporting sleeve 2b2, and a thread structure is arranged in the end cover bolt holes 2b 3.
The supporting end cap 2b is installed in the rotating hole 1c3 of the supporting frame 1c, and the supporting rotating shaft 2b1 is in clearance fit with the rotating hole 1c3, so that the supporting end cap 2b can rotate in the circumferential direction in the rotating hole 1c3 of the supporting frame 1 c.
The fourth concrete implementation mode:
different from the third embodiment, in the liver transplantation artificial blood vessel reconstruction device of the present embodiment, as shown in fig. 1 to 24, the inner support tube 2d is provided with 4 uniformly distributed inner tube support holes 2d1 at circumferential positions of two ends; the middle part of the inner support cylinder 2d is provided with an inner cylinder chute long hole 2d2, and 4 inner cylinder chute long holes 2d2 are circumferentially and uniformly distributed on the side wall of the inner support cylinder 2 d;
the circumferential positions of the two ends of the outer support cylinder 2c are respectively provided with 4 uniformly distributed outer cylinder support holes 2c 1; the middle part of the outer support cylinder 2c is provided with outer cylinder sliding groove long holes 2c2, and 4 outer cylinder sliding groove long holes 2c2 are uniformly distributed in the circumferential direction; placement holes 2c3 are provided at both ends of the outer cylinder chute long hole 2c2, the placement hole 2c3 communicates with the outer cylinder chute long hole 2c2, and the placement hole 2c3 has a diameter larger than the width of the outer cylinder chute long hole 2c 2.
The fifth concrete implementation mode:
different from the first, second or fourth embodiment, in the artificial blood vessel reconstruction device for liver transplantation of the present embodiment, as shown in fig. 1 to 24, the outer support tube 2c is provided with 4 uniformly distributed outer tube support holes 2c1 at circumferential positions of two ends, the inner support tube 2d is provided with 4 uniformly distributed inner tube support holes 2d1 at circumferential positions of two ends, and the support end cap 2b is provided with 4 uniformly distributed end cap bolt holes 2b3 at circumferential positions of the tail end of the support sleeve 2b 2; the outer supporting cylinder 2c is sleeved outside the supporting sleeve 2b2, the inner supporting cylinder 2d is sleeved inside the supporting sleeve 2b2, then 8 connecting bolts 2a respectively pass through 8 outer cylinder supporting holes 2c1 at two ends of the outer supporting cylinder 2c, 8 end cover bolt holes 2b3 on 2 supporting end covers 2b and 8 inner cylinder supporting holes 2d1 at two ends of the inner supporting cylinder 2d, and the supporting end cover 2b, the outer supporting cylinder 2c and the inner supporting cylinder 2d are connected into a rigid whole, so that all parts contained in the supporting member 2 can move and rotate together; in addition, after the assembly is completed, the 4 outer cylinder sliding groove long holes 2c2 on the outer support cylinder 2c correspond to the 4 inner cylinder sliding groove long holes 2d2 on the inner support cylinder 2d exactly in one-to-one spatial position, so that the fixing and using operations of the sliding cutting component 3 in the subsequent using process are met.
The sixth specific implementation mode:
different from the fifth embodiment, in the artificial blood vessel reconstruction device for liver transplantation of the present embodiment, as shown in fig. 1 to 24, the positioning nut 3b is provided with a hollow threaded inner hole 3b2 structure, one end of the positioning nut 3b is provided with a nut block 3b1, the nut block 3b1 is connected with an extrusion positioning shaft 3b3, the sliding groove block 3c is a hollow structure, and one end of the sliding groove block 3c is provided with a threaded shaft 3c 1; one end of the rectangular guide block 3c2 is connected with the threaded shaft 3c1, and the other end of the rectangular guide block 3c2 is connected with an arc-shaped sliding block 3c 3;
the rectangular guide block 3c2 is a rectangular structure, and fillets are arranged at four corner positions of the rectangular structure, and the rectangular guide block 3c2 can be matched with the outer cylinder chute long hole 3c 2;
the arc-shaped sliding block 3c3 is arranged between the inner support barrel 2d and the outer support barrel 2c, the upper end surface and the lower end surface of the arc-shaped sliding block 3c3 are arc-shaped, so as to be still tightly attached to the outer wall of the inner support barrel 2d and the inner wall of the outer support barrel 2c under the condition of keeping clearance fit;
the guide rod frame 3a consists of a guide rod handle 3a1, a sliding guide rod 3a2 and a clamping sleeve 3a 3;
the front end of the sliding guide rod 3a2 is connected with a clamping sleeve 3a3, and the rear end of the sliding guide rod 3a2 is connected with a guide rod handle 3a 1; the clamping sleeve 3a3 is of a hollow structure and is used for installing and fixing the tapping knife 3 d; the outer diameter of the clamping sleeve 3a3 is smaller than the outer diameter of the sliding guide rod 3a 2;
the threaded shaft 3c1 is connected with the threaded inner hole 3b2 in a matching way through a threaded structure, and the sliding guide rod 3a2 is in clearance fit with the positioning nut 3b and the sliding groove block 3c, so that the sliding guide rod 3a2 of the guide rod frame 3a can slide and rotate in the middle holes of the positioning nut 3b and the sliding groove block 3c in a reciprocating way.
The seventh embodiment:
different from the first, second, fourth or sixth specific embodiments, in the liver transplantation artificial blood vessel reconstruction device of the present embodiment, as shown in fig. 1 to 24, the tapping knife 3d is composed of 3 triangular arc-shaped blades 3d1 at the front end and a clamping knife handle 3d 2;
the triangular arc-shaped blade 3d1 is edged on both sides and can be used for cutting an artificial blood vessel; the clamping knife handle 3d2 can be sleeved in the clamping sleeve 3a3 to realize rigid fixation of the tapping knife 3d and the guide rod frame 3a, so that the tapping knife 3d can slide and rotate together with the guide rod frame 3 a.
The working principle is as follows:
a liver transplantation artificial blood vessel reconstruction device is firstly placed on a working table surface, and is leveled by adjusting 4 machine legs 1a positioned below a bottom fixing plate 1b, as shown in figures 1-24.
The artificial blood vessel to be cut into the hole can be placed on the table top or the bottom fixing plate 1b according to the actual situation.
The sliding groove block 3c is put into the placing hole 2c3 and transversely slides into the outer cylinder sliding groove long hole 2c2, and the rectangular guide block 3c2 is in clearance fit with the outer cylinder sliding groove long hole 2c 2; the upper surface of the arc-shaped sliding block 3c3 is contacted with the inner surface of the outer supporting cylinder 2c, the lower surface of the arc-shaped sliding block 3c3 is contacted with the inner supporting cylinder 2d, and the arc-shaped sliding block 3c3 is in clearance fit with the outer supporting cylinder 2c and the inner supporting cylinder 2d, so that the sliding chute block 3c can slide in the long sliding chute hole 2c2 of the outer cylinder in a reciprocating way; and then the positioning nut 3b is arranged on the chute block 3c, and the two are connected through a thread structure.
The sliding groove block 3c is put into the placing hole 2c3 and transversely slides into the outer cylinder sliding groove long hole 2c2, and the rectangular guide block 3c2 is in clearance fit with the outer cylinder sliding groove long hole 2c 2; the upper surface of the arc-shaped sliding block 3c3 is contacted with the inner surface of the outer supporting cylinder 2c, the lower surface of the arc-shaped sliding block 3c3 is contacted with the inner supporting cylinder 2d, and the arc-shaped sliding block 3c3 is in clearance fit with the outer supporting cylinder 2c and the inner supporting cylinder 2d, so that the sliding chute block 3c can slide in the long sliding chute hole 2c2 of the outer cylinder in a reciprocating way; and then the positioning nut 3b is arranged on the chute block 3c, and the two are connected through a thread structure.
The sliding groove block 3c is adjusted to slide transversely to reach a proper position, the nut block 3b1 is rotated by a wrench to drive the positioning nut 3b to rotate, so that the positioning nut 3b and the sliding groove block 3c are clamped and positioned on the outer supporting cylinder 2c, and the sliding groove block 3c and the positioning nut 3b are positioned on the outer supporting cylinder 2 c.
Conversely, if the positioning nut 3b is reversed, the fixing of the positioning nut 3b and the chute block 3c on the outer support cylinder 2c can be released.
The outer support cylinder 2c may be provided with graduations on the outer wall for identifying the lateral position of the chute block 3 c.
The rotating mechanism 2 is adjusted to enable the supporting rotating shaft 2b1 to rotate to a proper position in the rotating hole 1c3, then the fastening bolt 1d in the fastening hole 1c2 is screwed, the front end of the fastening bolt 1d is enabled to be propped against the end face of the outer side of the end cover fastening ring 2b4, the rotating angle of the rotating mechanism 2 is adjusted by utilizing friction force, and further the rotating angle of the sliding chute block 3c is fixed.
Conversely, the fixing of the rotation angle of the rotation mechanism 2 can be released by loosening the fastening bolt 1 d.
The guide rod frame 3a is inserted from the hollow inside of the sliding groove block 3c and the positioning nut 3b, and the sliding groove block 3c and the positioning nut 3b are fixed on the outer support cylinder 2c, so that the guide rod frame 3a can pass through the outer cylinder sliding groove long hole 2c2 and the inner cylinder sliding groove long hole 2d 2; a tapping knife 3d of an appropriate size is selected and the tapping knife 3d is mounted on the click sleeve 3a3 at the front end of the guide bar frame 3 a.
When a plurality of hole sites need to be opened, the hole opening device can be realized by adjusting the transverse position of the sliding groove block 3c and the rotating angle of the rotating mechanism 2 and replacing the hole opening cutters 3d with different sizes.
After the required hole is formed, the hole forming cutter 3d is taken down firstly, then the guide rod frame 3a is taken out, and the adjustment is carried out when the next use is carried out.
The opening process is the reconstruction operation of the artificial blood vessel.
Claims (7)
1. A liver transplantation artificial blood vessel reconstruction device is characterized in that: the cutting device comprises a supporting component (1), a rotating component (2) and a sliding cutting component (3), wherein the supporting component (1) is used as a supporting structure and is positioned at the bottom of the whole mechanism, the rotating component (2) is arranged on two supporting frames (1 c) of the supporting component (1), and the sliding cutting component (3) is inserted on the rotating component (2);
wherein,
the supporting member (2) comprises a connecting bolt (2 a), a supporting end cover (2 b), an outer supporting cylinder (2 c) and an inner supporting cylinder (2 d);
the inner support cylinder (2 d) is sleeved in the outer support cylinder (2 c), two support end covers (2 b) are respectively installed at two ends of the inner support cylinder (2 d) and the outer support cylinder (2 c), and the 2 support end covers (2 b) are respectively fixed at two ends of the inner support cylinder (2 d) and the outer support cylinder (2 c) through 8 connecting bolts (2 a); a group of outer cylinder chute long holes (2 c 2) are circumferentially arranged on the tube wall of the outer support tube (2 c), a group of inner cylinder chute long holes (2 d 2) are circumferentially arranged on the tube wall of the inner support tube (2 d), and the positions of the outer cylinder chute long holes (2 c 2) and the inner cylinder chute long holes (2 d 2) on the tube wall are corresponding;
the sliding cutting component (3) comprises a guide rod frame (3 a), a positioning nut (3 b), a sliding groove block (3 c) and a tapping knife (3 d); the sliding groove block (3 c) and the positioning nut (3 b) are both of hollow structures, the sliding groove block (3 c) is provided with external threads, the positioning nut (3 b) is provided with internal threads, and the sliding groove block (3 c) and the positioning nut (3 b) are connected with each other through the threads; the guide rod frame (3 a) penetrates through the positioning nut (3 b) and the sliding groove block (3 c), the guide rod frame (3 a) is in clearance fit with the positioning nut (3 b) and the sliding groove block (3 c), and the guide rod frame (3 a) can slide in the positioning nut (3 b) and the sliding groove block (3 c); after the guide rod frame (3 a) penetrates through the positioning nut (3 b) and the sliding groove block (3 c), the front end of the guide rod frame (3 a) is fixedly installed with the tapping knife (3 d); the tapping knife (3 d) is cylindrical, and a group of arc-shaped blades (3 d 1) are arranged on the end face of the tapping knife (3 d).
2. The device for reconstructing artificial blood vessel for liver transplantation according to claim 1, wherein: the supporting component (1) also comprises a machine foot (1 a), a bottom fixing plate (1 b), a supporting frame (1 c) and a fastening bolt (1 d);
4 machine legs (1 a) are fixed on the lower surface of the bottom fixing plate (1 b), and a support frame (1 c) is fixed on the upper surface of the bottom fixing plate (1 b); the supporting frame (1 c) is provided with supporting plates (1 c 1) on two sides respectively, a fastening hole (1 c 2) and a rotating hole (1 c 3) are formed in the supporting plate (1 c 1), internal threads are arranged in the fastening hole (1 c 2), 2 fastening bolts (1 d) are installed in the fastening holes (1 c 2) of the supporting plates (1 c 1) on the two sides of the supporting frame (1 c), and the fastening bolts (1 d) are connected with the fastening holes (1 c 2) through thread structures.
3. The liver transplantation artificial blood vessel reconstruction device according to claim 1 or 2, wherein: the supporting end cover (2 b) further comprises a supporting rotating shaft (2 b 1), a supporting sleeve (2 b 2), an end cover bolt hole (2 b 3) and an end cover fastening ring (2 b 4);
one side of the end cover fastening ring (2 b 4) is connected with a supporting rotating shaft (2 b 1), the other side of the end cover fastening ring (2 b 4) is connected with a supporting sleeve (2 b 2), 4 end cover bolt holes (2 b 3) are uniformly distributed at the circumferential position of the tail end of the supporting sleeve (2 b 2), and a threaded structure is arranged in each end cover bolt hole (2 b 3);
the supporting end cover (2 b) is arranged in a rotating hole (1 c 3) of the supporting frame (1 c), and the supporting rotating shaft (2 b 1) is in clearance fit with the rotating hole (1 c 3), so that the supporting end cover (2 b) can rotate in the inner circumferential direction of the rotating hole (1 c 3) of the supporting frame (1 c).
4. The device for reconstructing artificial blood vessel for liver transplantation according to claim 3, wherein: the inner support cylinder (2 d) is provided with 4 uniformly distributed inner cylinder support holes (2 d 1) at the circumferential positions of two ends respectively; the middle part of the inner support cylinder (2 d) is provided with inner cylinder chute long holes (2 d 2), and 4 inner cylinder chute long holes (2 d 2) are circumferentially and uniformly distributed on the side wall of the inner support cylinder (2 d);
the outer support cylinder (2 c) is provided with 4 uniformly distributed outer cylinder support holes (2 c 1) at the circumferential positions of two ends respectively; the middle part of the outer support cylinder (2 c) is provided with outer cylinder sliding groove long holes (2 c 2), and 4 outer cylinder sliding groove long holes (2 c 2) are uniformly distributed in the circumferential direction; placing holes (2 c 3) are formed in two ends of the outer cylinder sliding groove long hole (2 c 2), the placing hole (2 c 3) is communicated with the outer cylinder sliding groove long hole (2 c 2), and the diameter of the placing hole (2 c 3) is larger than the width of the outer cylinder sliding groove long hole (2 c 2).
5. The device for reconstructing artificial blood vessel for liver transplantation according to claim 4, wherein: the outer support cylinder (2 c) is respectively provided with 4 uniformly distributed outer cylinder support holes (2 c 1) at circumferential positions of two ends, the inner support cylinder (2 d) is respectively provided with 4 uniformly distributed inner cylinder support holes (2 d 1) at circumferential positions of two ends, and the support end cover (2 b) is uniformly provided with 4 end cover bolt holes (2 b 3) at circumferential positions of the tail end of the support sleeve (2 b 2); sleeving an outer support cylinder (2 c) on the outer side of a support sleeve (2 b 2), sleeving an inner support cylinder (2 d) on the inner side of the support sleeve (2 b 2), then respectively penetrating 8 connecting bolts (2 a) through 8 outer cylinder support holes (2 c 1) at two ends of the outer support cylinder (2 c), 8 end cover bolt holes (2 b 3) on 2 support end covers (2 b) and 8 inner cylinder support holes (2 d 1) at two ends of the inner support cylinder (2 d), and connecting the support end cover (2 b), the outer support cylinder (2 c) and the inner support cylinder (2 d) into a rigid whole, so that all parts contained in the support member (2) can move and rotate together; in addition, 4 outer cylinder sliding groove long holes (2 c 2) on the outer support cylinder (2 c) and 4 inner cylinder sliding groove long holes (2 d 2) on the inner support cylinder (2 d) correspond to each other exactly in spatial position after assembly is completed, and therefore fixing and using operations of the sliding cutting component (3) in the subsequent using process are met.
6. The device for reconstructing artificial blood vessel for liver transplantation according to claim 5, wherein: the positioning nut (3 b) is provided with a hollow threaded inner hole (3 b 2) structure, one end of the positioning nut (3 b) is provided with a nut block (3 b 1), the nut block (3 b 1) is connected with an extrusion positioning shaft (3 b 3), the sliding groove block (3 c) is of a hollow structure, and one end of the sliding groove block (3 c) is provided with a threaded shaft (3 c 1); one end of the rectangular guide block (3 c 2) is connected with the threaded shaft (3 c 1), and the other end of the rectangular guide block (3 c 2) is connected with an arc-shaped sliding block (3 c 3);
the rectangular guide block (3 c 2) is of a rectangular structure, round corners are formed at four corner positions of the rectangular structure, and the rectangular guide block (3 c 2) can be matched with the long hole (3 c 2) of the sliding groove of the outer cylinder;
the arc-shaped sliding block (3 c 3) is arranged between the inner support barrel (2 d) and the outer support barrel (2 c), and the upper end surface and the lower end surface of the arc-shaped sliding block (3 c 3) are arc-shaped so as to be still tightly attached to the outer wall of the inner support barrel (2 d) and the inner wall of the outer support barrel (2 c) under the condition of keeping clearance fit;
the guide rod frame (3 a) consists of a guide rod handle (3 a 1), a sliding guide rod (3 a 2) and a clamping sleeve (3 a 3);
the front end of the sliding guide rod (3 a 2) is connected with a clamping sleeve (3 a 3), and the rear end of the sliding guide rod (3 a 2) is connected with a guide rod handle (3 a 1); the clamping sleeve (3 a 3) is of a hollow structure and is used for installing and fixing the tapping knife (3 d); the outer diameter of the clamping sleeve (3 a 3) is smaller than that of the sliding guide rod (3 a 2);
the threaded shaft (3 c 1) is in fit connection with the threaded inner hole (3 b 2) through a threaded structure, and the sliding guide rod (3 a 2) is in clearance fit with the positioning nut (3 b) and the sliding groove block (3 c), so that the sliding guide rod (3 a 2) of the guide rod frame (3 a) can slide and rotate in the middle holes of the positioning nut (3 b) and the sliding groove block (3 c) in a reciprocating mode.
7. The liver transplantation artificial blood vessel reconstruction device of claim 6, wherein the opening knife (3 d) is composed of 3 triangular arc-shaped blades (3 d 1) at the front end and a clamping knife handle (3 d 2);
the triangular arc-shaped blade (3 d 1) is edged on both sides and can be used for cutting an artificial blood vessel; the clamping knife handle (3 d 2) can be sleeved in the clamping sleeve (3 a 3) to realize the rigid fixation of the tapping knife (3 d) and the guide rod frame (3 a), so that the tapping knife (3 d) can slide and rotate along with the guide rod frame (3 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910915233.7A CN110652376A (en) | 2019-09-26 | 2019-09-26 | Artificial blood vessel reconstruction device for liver transplantation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910915233.7A CN110652376A (en) | 2019-09-26 | 2019-09-26 | Artificial blood vessel reconstruction device for liver transplantation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110652376A true CN110652376A (en) | 2020-01-07 |
Family
ID=69039296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910915233.7A Pending CN110652376A (en) | 2019-09-26 | 2019-09-26 | Artificial blood vessel reconstruction device for liver transplantation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110652376A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010041927A1 (en) * | 1996-05-17 | 2001-11-15 | Solem Jan Otto | By-pass graft |
| KR20040095090A (en) * | 2003-05-06 | 2004-11-12 | 한국생산기술연구원 | Atherectomy catheter system with radially expanding cutter blades |
| US20160157878A1 (en) * | 2014-12-04 | 2016-06-09 | Terumo Kabushiki Kaisha | Medical device |
| CN206964701U (en) * | 2017-01-06 | 2018-02-06 | 北京华脉泰科医疗器械有限公司 | Exempt to suture blood vessel graft |
| WO2018057482A1 (en) * | 2016-09-20 | 2018-03-29 | Terumo Cardiovascular Systems Corporation | Continuously adjustable cutting tool for preparing valve leaflet |
| CN108309507A (en) * | 2018-02-14 | 2018-07-24 | 朱效华 | A kind of compound arch of aorta reconstructing system and its application method |
| CN211534998U (en) * | 2019-09-26 | 2020-09-22 | 南京鼓楼医院 | Artificial blood vessel reconstruction device for liver transplantation |
-
2019
- 2019-09-26 CN CN201910915233.7A patent/CN110652376A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010041927A1 (en) * | 1996-05-17 | 2001-11-15 | Solem Jan Otto | By-pass graft |
| KR20040095090A (en) * | 2003-05-06 | 2004-11-12 | 한국생산기술연구원 | Atherectomy catheter system with radially expanding cutter blades |
| US20160157878A1 (en) * | 2014-12-04 | 2016-06-09 | Terumo Kabushiki Kaisha | Medical device |
| WO2018057482A1 (en) * | 2016-09-20 | 2018-03-29 | Terumo Cardiovascular Systems Corporation | Continuously adjustable cutting tool for preparing valve leaflet |
| CN206964701U (en) * | 2017-01-06 | 2018-02-06 | 北京华脉泰科医疗器械有限公司 | Exempt to suture blood vessel graft |
| CN108309507A (en) * | 2018-02-14 | 2018-07-24 | 朱效华 | A kind of compound arch of aorta reconstructing system and its application method |
| CN211534998U (en) * | 2019-09-26 | 2020-09-22 | 南京鼓楼医院 | Artificial blood vessel reconstruction device for liver transplantation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8920426B2 (en) | Apparatus for osteotomy and graft preparation | |
| CN104905870B (en) | For sighting device fixed in pelvis | |
| US20210330338A1 (en) | Graft placement system and method | |
| CN106456050A (en) | Aiming device for distal locking of intramedullary nails and methods of use | |
| CN211534998U (en) | Artificial blood vessel reconstruction device for liver transplantation | |
| CN111467023B (en) | Surgical screw insertion angle positioning guide | |
| CN110652376A (en) | Artificial blood vessel reconstruction device for liver transplantation | |
| CN209304127U (en) | A kind of petal localization tool | |
| CN103837052B (en) | Vernier caliper vernier balancing controls | |
| CN209408025U (en) | A kind of lathe regulating device | |
| CN207840876U (en) | A kind of orthopedic scalpel milling drum | |
| CN104013451A (en) | Universal thighbone osteotomy device in navigation auxiliary total knee replacement | |
| CN210811350U (en) | Alignment positioning device for distal end of femoral osteotomy | |
| CN204274629U (en) | A kind of pedicle nail entry point localizer | |
| CN219846715U (en) | Positioning device | |
| CN215079413U (en) | Microwave ablation needle positioning device | |
| CN211433243U (en) | Knee joint intramedullary positioner | |
| CN104000642A (en) | Universal tibia osteotomy module in navigation aid total knee arthroplasty | |
| CN108852426A (en) | Organize quantitative cutting device | |
| CN108577902A (en) | A kind of rotating cutting type biopsy needle | |
| CN204995516U (en) | Liver disease is with puncture positioner | |
| CN221578276U (en) | Bone grafting positioner under arthroscope | |
| CN109771007A (en) | Percutaneous foramen intervertebrale lens service aisle locating guider | |
| CN209059347U (en) | Three-dimensional target is to guider | |
| CN117137697A (en) | Bone grafting positioner under arthroscope |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |