CN117598743B - Tissue traction instrument for vascular surgery of experimental animals - Google Patents
Tissue traction instrument for vascular surgery of experimental animals Download PDFInfo
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- CN117598743B CN117598743B CN202410086625.8A CN202410086625A CN117598743B CN 117598743 B CN117598743 B CN 117598743B CN 202410086625 A CN202410086625 A CN 202410086625A CN 117598743 B CN117598743 B CN 117598743B
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- 238000007631 vascular surgery Methods 0.000 title claims abstract description 15
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- 238000002474 experimental method Methods 0.000 claims abstract description 18
- 210000001519 tissue Anatomy 0.000 claims abstract description 17
- 239000010410 layer Substances 0.000 claims description 29
- 208000002847 Surgical Wound Diseases 0.000 claims description 12
- 239000012790 adhesive layer Substances 0.000 claims description 8
- 230000002792 vascular Effects 0.000 claims description 4
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/50—Supports for surgical instruments, e.g. articulated arms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D1/00—Surgical instruments for veterinary use
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Pathology (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Instructional Devices (AREA)
Abstract
The invention belongs to the technical field of medical equipment, and particularly relates to a tissue traction instrument for vascular surgery of experimental animals, which is mainly used for preparing brain diseases or heart disease models of experimental animals; through setting up traction assembly, fixed subassembly and connecting assembly that connects traction assembly, fixed subassembly, when using, put into experimental animal operation incision with traction assembly, after traction assembly will experimental animal operation incision one side skin muscle is pulled back, fixed subassembly is fixed in the laboratory bench, makes traction assembly will experimental animal operation incision to one side in the operation process all the time, in order to make the goal blood vessel expose all the time in the operation; mainly solves the following problems: in the current experiment, no convenient surgical instrument can gently fix the peeled skin muscles, so that the blood vessels can be clearly exposed, and the peeled skin muscles cannot be released in time in an interval waiting period, so that the peeled skin muscles and the blood vessels are exposed in the air for a long time.
Description
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to a tissue traction appliance for vascular surgery of experimental animals.
Background
In preparation of experimental animal brain diseases or heart disease models, the experimental animal brain diseases or heart disease models relate to neck or heart blood vessel type fine operations, such as common brain chronic low perfusion injury models (such as bilateral common carotid artery stenosis operation), middle cerebral artery occlusion reperfusion injury models and heart ischemia reperfusion injury models, the operation relates to neck or heart blood vessels of mice or rats, the blood vessels are buried under skin and muscle and are relatively fragile, a certain length of blood vessels are required to be exposed after the skin muscles are stripped, but no convenient surgical instrument in the current experiment can gently fix the stripped skin muscles, so that the blood vessels can be clearly exposed, and therefore, skin muscle tissues around an operation incision cause interference to the target blood vessels in the fine operation in the experimental process; in addition, the skin can not be taken or withdrawn at any time in the operation, the peeled skin can not be released in time in the waiting period, and the peeled skin and blood vessels are exposed to the air for a long time, so that the injury stimulus is caused to experimental animals.
The invention aims at the problems and provides a tissue traction device for vascular surgery of experimental animals.
Disclosure of Invention
In order to overcome the problems in the background art, the invention adopts the following technical scheme:
a tissue traction device for vascular surgery of experimental animals, comprising:
The connecting assembly is provided with a first connecting part and a second connecting part; wherein the connecting assembly is configured to enable the first connecting part and the second connecting part to generate traction force after the first connecting part or the second connecting part is stressed;
The traction component is used for being partially placed into the surgical incision of the experimental animal and being attached to the skin and the muscle at one side of the surgical incision; wherein the traction assembly is connected with the first connecting part of the connecting assembly; when the connecting component is stretched, the traction component is used for retracting the skin and the muscle at one side of the surgical incision of the experimental animal;
the fixing component is fixed on the experiment table after the skin and the muscle at one side of the operation incision of the experimental animal are retracted by the traction component and is used for enabling the traction component to keep the retraction state at one side of the operation incision of the experimental animal all the time; the fixing component is connected with the second connecting part of the connecting component, wherein the fixing component is configured to be fixed on a laboratory bench.
In some embodiments of the application, the traction assembly is configured for removable connection with the first connection portion of the connection assembly and the securing assembly is configured for removable connection with the second connection portion of the connection assembly.
In some embodiments of the application, the traction assembly has:
A body member; the main body piece is provided with a first joint part and a long side, wherein the main body piece and the first connecting part of the connecting assembly form a connection relation through the first joint part;
a plurality of traction nails; the traction nails are arranged on the long side of the main body piece, and the distance between every two adjacent traction nails is the same;
after the connecting component is stretched, the first joint part applies pulling force to the main body part, so that the skin and the muscles at one side of the surgical incision of the experimental animal are retracted by the traction nails.
Further, the outer walls of the traction nails are provided with granular bulges;
Or the outer wall of each of the traction nails is configured as a frosted surface.
Further, the traction nail has an arc, so that one end of the traction nail, which is not connected with the main body piece, approaches to the direction of the first connecting portion.
In some embodiments of the application, the connection assembly further has an elastic element disposed between the first connection portion and the second connection portion; the elastic element is extended in length after the first connecting part or the second connecting part is stressed, so that the first connecting part and the second connecting part generate traction force.
Further, the connection assembly includes: a spring; the two ends of the spring are fixedly connected with the first connecting part and the second connecting part.
Further, the connection assembly includes:
The first elastic strips are used for connecting the first connecting part with the second connecting part, and a distance exists between the two first elastic strips;
The second elastic strips are arranged between the two first elastic strips, and the second elastic strips and the first elastic strips are in vertical relation.
In some embodiments of the application, the securing assembly comprises:
A flexible layer having a second joint, wherein the flexible layer is in a connecting relationship with the second connection of the connection assembly by the second joint;
The adhesive layer is configured on one side of the flexible layer and is used for fixing the flexible layer on the experiment table;
After the flexible layer is stressed, the first connecting part and the second connecting part are far away from each other, and a traction force is generated.
In this embodiment, the fixing assembly is configured as a suction cup, wherein the suction cup has a connection end through which the suction cup is connected with the second connection portion of the connection assembly.
The invention has the beneficial effects that:
1. through the traction assembly who contains a plurality of traction nails, increased the skin area of contact with experimental animal when using, when the skin and the muscle to experimental animal operation incision one side are pulled, can make the skin muscle atress after peeling off even, avoid the operation district to form triangle-shaped's exposure state to this realization is with the exposure of target blood vessel furthest.
2. Through setting up the coupling assembling that has elasticity, realize when skin and muscle for experimental animal's operation incision one side are pulled, coupling assembling buffers the dynamics of pulling to avoid weaving the damage to experimental animal's operation area.
3. Through setting up the fixed subassembly that can be fixed in on the laboratory bench, make the traction assembly remain the state of pulling to the skin muscle of operation incision one side all the time, liberate laboratory staff's both hands at the operation in-process of developing, make operation vascular position interference reduction, increased the operation success rate.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a traction assembly of the present invention;
FIG. 3 is a schematic view of the structure of the traction assembly, the connecting assembly and the fixing assembly of the present invention after separation;
FIG. 4 is a schematic view of the main body of the present invention;
FIG. 5 is a schematic view of a connection assembly according to the present invention;
FIG. 6 is a schematic diagram of the structures of the first connector and the second connector according to the present invention;
FIG. 7 is a schematic view of the structure of the connecting shaft and the connecting sleeve according to the present invention;
FIG. 8 is a schematic view of a spring structure according to the present invention;
FIG. 9 is a schematic view of a connecting column structure according to the present invention;
FIG. 10 is a schematic view of the fixing assembly of the present invention in a generally rectangular shape;
FIG. 11 is a schematic view of the suction cup of the present invention;
FIG. 12 is a schematic view of the structure of the chuck connecting end of the present invention;
In the figure, 1, a traction assembly; 11. a body member; 111. a first joint; 1111. a first hole; 1112. a threaded hole; 112. a long side; 12. traction nails; 121. a granular protrusion; 2. a connection assembly; 21. a first connection portion; 211. a hook; 212. a connecting column; 213. a first connecting body; 2131. a connecting shaft; 214. a second connector; 2141. a connecting sleeve; 215. a circular plate; 22. a second connecting portion; 23. a spring; 24. a first elastic strip; 25. a second elastic strip; 3. a fixing assembly; 31. a flexible layer; 311. a second joint; 3111. a second hole; 32. an adhesive layer; 33. a suction cup; 331. and a connecting end.
Detailed Description
The following detailed description of the embodiments of the present invention will be made more apparent to those skilled in the art from the following detailed description, in which the invention is embodied in several, but not all, embodiments of the invention. The invention may be embodied or applied in other specific forms and features of the following examples and examples may be combined with each other without conflict, all other examples being contemplated by those of ordinary skill in the art without undue burden from the present disclosure, based on the examples of the invention.
Fig. 1-3 show the main technical content of the present embodiment, and the present embodiment provides a tissue traction apparatus for vascular surgery of experimental animals, which includes:
A connection assembly 2 having a first connection portion 21 and a second connection portion 22; wherein, the connecting assembly 2 is configured to make the first connecting portion 21 and the second connecting portion 22 generate a pulling force after the first connecting portion 21 or the second connecting portion 22 is stressed;
The traction component 1 is used for being partially placed into an operation incision of an experimental animal and is attached to skin and muscle on one side of the operation incision; wherein the traction assembly 1 is connected with the first connecting part 21 of the connecting assembly 2; when the connecting component 2 is stretched, the traction component 1 is used for retracting the skin and the muscle at one side of the surgical incision of the experimental animal;
the fixing component 3 is fixed on the experiment table after the traction component 1 retracts the skin and the muscle at one side of the operation incision of the experimental animal, and is used for enabling the traction component 1 to keep the retraction state at one side of the operation incision of the experimental animal all the time; the fixing element 3 is connected to the second connection 22 of the connection element 2, wherein the fixing element 3 is configured to be able to be fixed to a laboratory bench.
Referring to fig. 1-4, in some embodiments of the application, a traction assembly 1 has: a main body part 11 and a plurality of traction nails 12; the main body member 11 has a first joint portion 111 and a long side 112, wherein the main body member 11 is in a connection relationship with the first connection portion 21 of the connection assembly 2 through the first joint portion 111; the traction nails 12 are arranged on the long side 112 of the main body piece 11, and the intervals between every two adjacent traction nails 12 are the same; when the surgical incision of the experimental animal is used, each traction nail 12 is placed into the surgical incision of the experimental animal, and the traction nails 12 are attached to the skin muscle at one side of the surgical incision of the experimental animal by pulling the main body piece 11 and pulled in the direction away from the experimental animal, so that the skin muscle around the target blood vessel is pulled away, and the target blood vessel is exposed; in specific use, for example, in a bilateral carotid stenosis operation of a mouse or a rat, the head of the mouse or the rat faces an experimenter, the carotid artery of the mouse or the rat on the left hand side is operated, and the dermal muscle tissue of the mouse or the rat on the left hand side of the operation incision is pulled to the left side by each traction nail 12, so that the carotid artery blood vessel is exposed; and then the operation is carried out on the common arterial blood vessel, and meanwhile, the arrangement of the traction nails 12 also increases the area of the skin muscle contacted with the experimental animal during use, so that the skin muscle after stripping is uniformly stressed during the process of retracting the skin muscle tissue, and the triangular exposure state of an operation area is avoided, thereby realizing the maximum exposure of the target blood vessel.
More specifically (not shown), the traction nails 12 are fixedly connected with the main body piece 11, wherein a plurality of round holes are formed on the long side 112 of the main body piece 11, the number of the round holes is the same as that of the traction nails 12, each round hole is inserted with one traction nail 12, and the parts of the traction nails 12 in the round holes are fixed through glue; in this arrangement, the body member 11 may be made of a metallic material, for example: stainless steel, aluminum, copper, etc., while the traction nails 12 can be made of rubber or silica gel; the traction nails 12 arranged in the use process can keep certain flexibility, damage to the skin and muscle tissues of the mice or rats is avoided, meanwhile, friction force between the traction nails and the skin and muscle tissues of the mice or rats can be enhanced, and the skin and muscle tissues are prevented from slipping in the traction nails 12.
Alternatively (not shown), the traction nails 12 and the main body 11 are integrally connected, and the materials used for the traction nails and the main body are the same, and can be made of metal materials.
Referring to fig. 4, in the present embodiment, the outer walls of the plurality of traction nails 12 are provided with granular protrusions 121, wherein the granular protrusions 121 and the traction nails 12 are optionally integrally connected, and the granular protrusions 121 can be cast by a specific mold.
Or the granular protrusions 121 are also made of rubber or silica gel and are fixed on the outer wall of the traction nails 12 in an adhesive manner; in use, the frictional force between the traction nail 12 and the mouse or rat skin muscle tissue can be further enhanced by the granular protrusions 121.
Alternatively (not shown), when the staples 12 are made of a metal material, the outer wall of each staple 12 is configured as a frosted surface.
Referring to fig. 3 to 4, in the present embodiment, the staples 12 are curved so that the end of the staples 12 which is not connected to the main body 11 is adjacent to the first connecting portion 21, and the overall diameter of the staples 12 is gradually reduced, by which each of the staples 12 can hold the skin tissue around the target blood vessel when in use, thereby avoiding the skin tissue around the target blood vessel from shielding the target blood vessel.
Alternatively, the staples 12 may take on a flat configuration with an arc, wherein the width of the staples 12 may be stepped down or the width of the staples 12 may be constant overall; thereby further increasing the contact area with the cervical skin muscle of the experimental mice.
In this embodiment (not shown), the body members 11 of the traction assembly 1 are provided with different specifications, wherein the number of traction nails 12 disposed on the body members 11 of different specifications is different, specifically: the main body piece 11 comprises a main body piece 11 with the length of 1cm/2cm/4cm/8cm, and when the mouse is used, the main body piece 11 with proper specification is selected to be connected with the connecting component 2 according to the experiment requirement so as to separate the skin and the muscles at different parts of the experimental mouse or rat; the main body part 11 with the length of 1cm is particularly used for brain and heart vascular surgery of experimental mice; the main body piece 11 with the length of 2cm is suitable for the limb vascular surgery of the experimental mice; the method is applicable to vascular surgery of experimental rats at a distance of 4-8 cm.
Referring to fig. 1-4, in the present embodiment, the traction assembly 1 is configured for detachable connection with the first connection portion 21 of the connection assembly 2 and the fixing assembly 3 is configured for detachable connection with the second connection portion 22 of the connection assembly 2; for example, the first connecting portion 21 is configured as a hook 211, wherein the first engaging portion 111 of the main body member 11 is configured with a first hole 1111, and when in connection, the hook 211 passes through the first hole 1111, so that the main body member 11, the connecting assembly 2 and the first connecting portion 21 form a connection relationship, and under the arrangement, any included angle can be formed between the connecting assembly 2 and the main body member 11, so as to achieve traction of tissues around a target blood vessel of an experimental rat or mouse in any direction; so that the experimental rat or the operation area around the target blood vessel of the mouse can be pulled to the maximum extent according to the requirement, through the arrangement, the main body part 11 can be quickly replaced according to the experimental target and the operation position, and the purpose of pulling and fixing the skin muscles at different positions such as the cerebral blood vessel, the hind limb blood vessel, the heart and the like of the individual mouse or the rat is realized.
Referring to fig. 2 to 7, the first connection part 21 may alternatively further include: the first connector 213, the second connector 214 and the circular plate 215, wherein the first connector 213 and the second connector 214 are arranged on the circular plate 215, the first connector 213 and the second connector 214 are in parallel relation, a space is reserved between the first connector 213 and the second connector 214, the first connector 213 is provided with a connecting shaft 2131, a groove is formed on the outer wall of the connecting shaft 2131, the second connector 214 is provided with a connecting sleeve 2141, and the connecting shaft 2131 can be inserted into the connecting sleeve 2141; more specifically, the inner wall of the connecting sleeve 2141 is provided with a plurality of elastic limiting members, and after the connecting shaft 2131 is inserted into the connecting sleeve 2141, the plurality of limiting members are clamped into the grooves, so that the first connecting body 213 and the second connecting body 214 form a connection relationship; in use, the first connector 213 is positioned at one port of the first aperture 1111 and the second connector 214 is positioned at the other port of the first aperture 1111, such that the connecting shaft 2131 is inserted into the connecting sleeve 2141 by applying a force to the first connector 213 and the second connector 214; and a plurality of elastic limiting members are clamped into the grooves on the outer wall of the connecting shaft 2131, so that the main body member 11 and the connecting assembly 2 are connected, and when the main body member 11 is replaced, one of the first connecting body 213 and the second connecting body 214 is forced, so that the connecting shaft 2131 is separated from the connecting sleeve 2141, and the main body member 11 and the connecting assembly 2 are separated.
Referring to fig. 2 to 3 and 8 to 9, alternatively, the first connecting portion 21 is formed with a connecting post 212, an outer wall of the connecting post 212 is provided with threads, and the first engaging portion 111 of the body member 11 is provided with a threaded hole 1112, wherein the connecting post 212 is screwed into the threaded hole 1112 by the threads provided on the outer wall, so that the body member 11 and the connection assembly 2 are in a connection relationship.
In this embodiment (not shown), the outer shell is detachably connected with the traction assembly 1, where the outer shell can completely wrap the main body 11, and in the operation process, for example, after the operation of the common artery on the left side of the experimental mouse is finished, the outer shell is sleeved on the traction assembly 1, after the body position of the experimental mouse is adjusted, and after the mouse has rest, the outer shell is detached from the traction assembly 1, in this process, the outer shell can protect the traction assembly 1 from being polluted by foreign objects, so that the traction assembly 1 is prevented from carrying foreign objects into the operation area, and the survival rate of the experimental mouse after the operation is improved to a certain extent.
Referring to fig. 1 to 3, in the present embodiment, the connection assembly 2 further has an elastic element disposed between the first connection portion 21 and the second connection portion 22; the elastic element is stretched after the first connecting portion 21 or the second connecting portion 22 is stressed, so that the first connecting portion 21 and the second connecting portion 22 generate a pulling force opposite to the stretching direction of the length; therefore, after the fixing component 3 is fixed, the traction component 1 can always keep traction on the skin muscle of the experimental animal operation area, and meanwhile, the elastic element in the state of extending the length can buffer the traction force and can also bend when the length is extended due to the characteristic of elasticity of the elastic element, so that the damage of the fragile neck skin muscle tissue of the experimental mouse or the rat caused by the larger traction force is avoided when the neck blood vessel operation of the experimental mouse or the rat is performed; meanwhile, the traction force is convenient to adjust, and the conditions of sudden muscle loosening and the like which are fixed by traction stripping in the operation process are reduced, so that the operation process is always kept in a stable state.
Referring to fig. 1 to 3 and fig. 8 to 9, as a specific example, the elastic element may be provided as a spring 23, wherein two ends of the spring 23 are fixedly connected with the first connecting portion 21 and the second connecting portion 22, and two ends of the spring 23 may be connected with the first connecting portion 21 and the second connecting portion 22 by bonding or welding; for example, when the first connection portion 21 is provided as the hook 211 or the connection column 212, a metal gasket is provided between the hook 211 or the connection column 212 and the spring 23, and the spring 23 and the hook 211 or the connection column 212 are brought into a connection relationship by welding using the metal gasket; when in use, after the first connecting part 21 or the second connecting part 22 is stressed, the spring 23 is unfolded and the length thereof is extended, so that after the spring 23 stops pulling, the spring 23 contracts according to the self characteristics, and the first connecting part 21 and the second connecting part 22 generate pulling force opposite to the length extending direction and act on the pulling assembly 1 and the fixing assembly 3.
Referring to fig. 3 and 10, alternatively, the elastic member includes: at least two first elastic strips 24 and several second elastic strips 25; the two first elastic strips 24 connect the first connecting part 21 with the second connecting part 22, and a distance exists between the two first elastic strips 24; the plurality of second elastic strips 25 are disposed between the two first elastic strips 24, and the second elastic strips 25 and the first elastic strips 24 are in a vertical relationship, wherein the distance between each two adjacent second elastic strips 25 is the same, and of course, as one skilled in the art can understand, two ends of the two first elastic strips 24 are provided with gaskets, the first connecting portion 21 and the second connecting portion 22 are formed on the two gaskets, and the orientation of the first connecting portion 21 is opposite to the orientation of the second connecting portion 22, more specifically, the materials used between the first elastic strips 24 and the second elastic strips 25 are the same, and the two can be used: natural rubber latex, nitrile rubber latex, chloroprene rubber latex, styrene-butadiene rubber or thermoplastic elastomer solution or emulsion, styrene-butadiene rubber emulsion and other materials.
Referring to fig. 1 to 3, in the present embodiment, the second connection portion 22 and the first connection portion 21 are arranged as mirror images, for example, when the first connection portion 21 is the hook 211, the second connection portion 22 is also the hook 211, and in this arrangement, the second connection portion 22 and the fixing component 3 are also hung; when the device is used, the traction component 1 is hung through the first connecting part 21, the fixed component 3 is hung through the second connecting part 22, so that the traction component 1, the connecting component 2 and the fixed component 3 form a connection relationship, then the traction component 1 is used for stripping and traction of the skin muscles of experimental mice or rats, the target blood vessel is exposed, the connecting component 2 is in a state that the length is extended, then the fixed component 3 is fixed at a proper position selected on the experiment table, the traction component 1 is used for always traction of the skin muscles of the experimental mice or rats, and accordingly, the phenomenon that the skin muscles which are stripped and fixed are suddenly pulled and loosened in the operation process are avoided, and the operation process is always in a stable state.
Referring to fig. 3 and 9, alternatively, the second connection portion 22 and the first connection portion 21 have different structures, for example, when the first connection portion 21 is the connection post 212, the second connection portion 22 is still configured as a hook; the first connection portion 21 and the second connection portion 22 may be arranged in any of the hook, the connecting column, the first connection body, the second connection body, and the circular plate.
Referring to fig. 1 to 3 and 10, in the present embodiment, the fixing member 3 includes: a flexible layer 31 and an adhesive layer 32; the flexible layer 31 has a second joint 311, wherein the flexible layer 31 is in a connecting relationship with the second connection 22 of the connection assembly 2 by the second joint 311; the adhesive layer 32 is disposed on one surface of the flexible layer 31, and is used for fixing the flexible layer 31 on the experiment table; after the flexible layer 31 is stressed, the first connecting portion 21 and the second connecting portion 22 are far away from each other and generate a pulling force, after the flexible layer 31 is fixed by the adhesive layer 32, the connecting assembly 2 is kept in a state that the length is extended, and the pulling assembly 1 fixes the skin muscle tissue of the experimental mouse or rat after being pulled and peeled, so that the target blood vessel is always exposed in the operation process.
Referring to fig. 3 and 10, more specifically, the second joint part 311 is configured to have a second hole 3111 or a threaded hole according to the arrangement manner of the second joint part 22, wherein when the second joint part 311 is configured with the second hole 3111, the second joint part 22 is configured as a hook or is composed of a first joint body, a second joint body, and a circular plate, and when the second joint part 311 is configured with the threaded hole, the second joint part 22 is configured as a threaded connection post on the outer wall; thereby bringing the second engaging portion 311 into a connecting relationship with the second connecting portion 22.
More specifically (not shown), the adhesive layer 32 may be a medical hot-melt pressure-sensitive adhesive layer, and a coating film is provided to cover the hot-melt pressure-sensitive adhesive layer, and when in use, after a fixing position is selected, the coating film is torn off from the hot-melt pressure-sensitive adhesive layer, and the flexible layer 31 is fixed on the laboratory bench through the hot-melt pressure-sensitive adhesive layer; when the traction force or traction direction needs to be adjusted in the operation process of the experimental mouse or rat, the flexible layer 31 can be torn off from the experiment table, and the position of the flexible layer can be changed later.
Referring to fig. 10, further, the flexible layer 31 is entirely presented in a regular geometric pattern, for example, the flexible layer 31 is configured in a triangle or rectangle; the same flexible layer 31 is provided with different gauge sizes, wherein the area between the flexible layers 31 of the various gauges is different.
Referring to fig. 3 and 11-12, alternatively, the fixing assembly 3 may be further configured as a suction cup 33, wherein the suction cup 33 has a connection end 331, and the suction cup 33 is connected with the second connection portion 22 of the connection assembly 2 through the connection end 331, more specifically, the connection end 331 is configured to have a second hole or a threaded hole according to the arrangement of the second connection portion 22, so that the connection end 331 can form a connection relationship with the second connection portion 22 of a different arrangement; in use, the suction cup 33 is adsorbed on the table surface of the experiment table, so that the traction assembly 1 can traction the skin muscle tissue of the neck operation mouth of the experiment mouse or rat, and meanwhile, the traction direction of the traction assembly 1 is changed according to the change of the operation area in the operation process, for example, after the operation on the left common artery of the neck of the experiment mouse or rat is completed, the suction cup 33 is taken off the table surface of the experiment table, so that the right common artery of the experiment mouse or rat is exposed, and the operation is performed.
In addition, the experimental animals in this embodiment include, but are not limited to: experimental mice, experimental rats, experimental rabbits, primate experiments; the present embodiment is mainly directed to experimental mice and experimental rats.
The application method of the invention comprises the following steps:
1. Placing each traction nail of the traction assembly into a surgical incision of the neck of the experimental mouse or rat, and attaching the traction nails to skin and muscle tissue at one side of the surgical incision;
2. The length of the connecting component is extended by pulling the fixing component, so that the first connecting part and the second connecting part generate pulling force, and at the moment, the skin and muscle tissues at one side of the experimental mouse or rat neck operation incision are pulled by the pulling component, so that the target common arterial blood vessel is exposed;
3. Attaching or adsorbing the fixing component on the table top of the experiment table through the adhesive layer or the sucker, so that the traction component always maintains a traction state on one side of the operation incision of the experimental animal; and then performing operation on the target blood vessel.
The above description of embodiments is only for the understanding of the present invention. It should be noted that it will be apparent to those skilled in the art that modifications can be made to the present invention without departing from the principles of the invention, and such modifications will fall within the scope of the claims.
Claims (8)
1. A tissue traction apparatus for vascular surgery of experimental animals, comprising:
The connecting assembly is provided with a first connecting part and a second connecting part; wherein the connecting assembly is configured to enable the first connecting part and the second connecting part to generate traction force after the first connecting part or the second connecting part is stressed;
The traction component is used for being partially placed into an operation incision of the experimental animal and is attached to skin and muscle at one side of the operation incision; wherein the traction assembly is connected with the first connecting part of the connecting assembly; when the connecting component is stretched, the traction component is used for retracting the skin and the muscle at one side of the surgical incision of the experimental animal;
The fixing component is fixed on the experiment table after the skin and the muscle at one side of the operation incision of the experimental animal are retracted by the traction component and is used for enabling the traction component to keep the retraction state at one side of the operation incision of the experimental animal all the time; the fixing component is connected with a second connecting part of the connecting component, wherein the fixing component is configured to be fixed on a laboratory bench;
The connecting assembly is also provided with an elastic element arranged between the first connecting part and the second connecting part; the elastic element is extended in length after the first connecting part or the second connecting part is stressed, so that the first connecting part and the second connecting part generate traction force;
The connection assembly includes:
The first elastic strips are used for connecting the first connecting part with the second connecting part, and a distance exists between the two first elastic strips;
the second elastic strips are arranged between the two first elastic strips, and the second elastic strips and the first elastic strips are in a vertical relationship;
The first connection portion includes: the device comprises a first connector, a second connector and a circular plate, wherein the first connector and the second connector are arranged on the circular plate, the first connector and the second connector are in parallel relation, a space is reserved between the first connector and the second connector, the first connector is provided with a connecting shaft, a groove is formed in the outer wall of the connecting shaft, the second connector is provided with a connecting sleeve, and the connecting shaft can be inserted into the connecting sleeve; the inner wall of the connecting sleeve is provided with a plurality of elastic limiting pieces, and after the connecting shaft is inserted into the connecting sleeve, the plurality of limiting pieces are clamped into the grooves, so that the first connecting body and the second connecting body form a connection relationship.
2. The laboratory animal vascular surgical tissue traction device of claim 1, wherein the traction assembly is configured for detachable connection with the first connection portion of the connection assembly and the fixation assembly with the second connection portion of the connection assembly.
3. The tissue traction apparatus for experimental animal vascular surgery according to claim 1, wherein,
The traction assembly has:
A body member; the main body piece is provided with a first joint part and a long side, wherein the main body piece and the first connecting part of the connecting assembly form a connection relation through the first joint part;
A plurality of traction nails; the traction nails are arranged on the long side of the main body piece, and the intervals between every two adjacent traction nails are the same;
After the connecting component is stretched, the first joint part applies pulling force to the main body part, so that the skin and the muscles at one side of the surgical incision of the experimental animal are retracted by the traction nails.
4. The tissue traction apparatus for experimental animal vascular surgery according to claim 3, wherein,
The outer walls of the traction nails are provided with granular bulges;
Or the outer wall of each of the traction nails is configured as a frosted surface.
5. A tissue traction device for vascular surgery in laboratory animals according to claim 3, wherein the traction nail has a curvature such that an end of the traction nail which is not connected to the main body member is adjacent to the first connecting portion.
6. The laboratory animal vascular surgical tissue traction device of claim 1, wherein the connection assembly comprises: a spring; the two ends of the spring are fixedly connected with the first connecting part and the second connecting part.
7. The tissue traction apparatus for experimental animal vascular surgery according to claim 1, wherein,
The fixing assembly includes:
A flexible layer having a second joint, wherein the flexible layer is in a connecting relationship with the second connection of the connection assembly by the second joint;
The adhesive layer is configured on one side of the flexible layer and is used for fixing the flexible layer on the experiment table;
After the flexible layer is stressed, the first connecting part and the second connecting part are far away from each other, and a traction force is generated.
8. The laboratory animal vascular surgical tissue traction device of claim 7, wherein the fixation assembly is configured as a suction cup, wherein the suction cup has a connection end through which the suction cup is connected to the second connection portion of the connection assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410086625.8A CN117598743B (en) | 2024-01-22 | 2024-01-22 | Tissue traction instrument for vascular surgery of experimental animals |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410086625.8A CN117598743B (en) | 2024-01-22 | 2024-01-22 | Tissue traction instrument for vascular surgery of experimental animals |
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| CN117598743B true CN117598743B (en) | 2024-05-24 |
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Also Published As
| Publication number | Publication date |
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| CN117598743A (en) | 2024-02-27 |
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