CN118453197A - Two-stage telescopic implant conveying device - Google Patents
Two-stage telescopic implant conveying device Download PDFInfo
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- CN118453197A CN118453197A CN202410685850.3A CN202410685850A CN118453197A CN 118453197 A CN118453197 A CN 118453197A CN 202410685850 A CN202410685850 A CN 202410685850A CN 118453197 A CN118453197 A CN 118453197A
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- 239000007943 implant Substances 0.000 title claims abstract description 73
- 238000009434 installation Methods 0.000 claims abstract 4
- 238000003780 insertion Methods 0.000 claims description 92
- 230000037431 insertion Effects 0.000 claims description 92
- 230000033001 locomotion Effects 0.000 claims description 9
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000006378 damage Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000008733 trauma Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 229910001000 nickel titanium Inorganic materials 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000017423 tissue regeneration Effects 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 102000009123 Fibrin Human genes 0.000 description 1
- 108010073385 Fibrin Proteins 0.000 description 1
- BWGVNKXGVNDBDI-UHFFFAOYSA-N Fibrin monomer Chemical compound CNC(=O)CNC(=O)CN BWGVNKXGVNDBDI-UHFFFAOYSA-N 0.000 description 1
- 206010073713 Musculoskeletal injury Diseases 0.000 description 1
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 1
- 230000000735 allogeneic effect Effects 0.000 description 1
- 230000002917 arthritic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000000845 cartilage Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 229950003499 fibrin Drugs 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000000513 rotator cuff Anatomy 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 230000008467 tissue growth Effects 0.000 description 1
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Classifications
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- 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
- A61F2/08—Muscles; Tendons; Ligaments
- A61F2/0805—Implements for inserting tendons or ligaments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Rehabilitation Therapy (AREA)
- Rheumatology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention relates to a two-stage telescopic implant transportation device, which belongs to the field of surgical instruments, and comprises: the hand-held part and two inserting and expanding rods are symmetrically arranged; the handheld part is provided with an adjusting module for adjusting the rotation angle of the inserted expansion rod, the inserted expansion rod sequentially comprises an expansion section, a bending section and a connecting extension section from the far end to the near end, the axes of the expansion section and the connecting extension section are mutually parallel, the far end of the expansion section is provided with a first tensioning installation hole, and the near end position of the expansion section is provided with a second tensioning installation hole. The angle of inserting the unfolding rod is accurately controlled through the adjusting module, so that the unfolding state of the sheet-shaped implant can be accurately adjusted, the implant is ensured to be unfolded to a proper position in a required area, and the problem that the unfolding process is difficult to control in the traditional device is avoided.
Description
Technical Field
The invention belongs to the field of surgical instruments, and particularly relates to a two-stage telescopic implant conveying device.
Background
A biological construct is a series of biologically derived implants used to promote tissue growth, repair and repair tissue defects and tears. These implants include repair of arthritic cartilage, tendon to bone bonding, and bridging of degenerated rotator cuffs in the shoulder.
Some common biological constructs and graft materials include: platelet rich fibrin membrane: for promoting wound healing and tissue repair; decellularized allogeneic dermal graft: for repair of skin defects; xenograft material: is used for repairing bones and soft tissues. These implants have been able to reconstruct and treat musculoskeletal injuries and lesions that were previously untreated and unrepairable. For sheet-like implants, the prior art devices have often used a push rod shaft in combination with a resiliently expandable deployment arm to effect transport and deployment within the passage of the sheet-like implant.
In the prior art, at least the following problems exist, the expansion arm capable of elastic expansion is used for carrying out the transportation in the sheet-shaped implant channel, the expansion arm is automatically expanded through the release elastic force after being separated from the push rod shaft, the active control cannot be realized, meanwhile, the automatic expansion of the release elastic force is instantly completed and is easy to cause implant damage, and meanwhile, a rotary opening mode is adopted, and the required channel diameter is large and causes great trauma to a patient.
In order to solve the above problems, a two-stage telescopic implant transport device is proposed.
Disclosure of Invention
The invention aims to provide a two-stage telescopic implant conveying device which is used for solving the problem that the unfolding state of a sheet implant cannot be actively adjusted.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a two-stage telescoping implant delivery device, the device comprising:
A hand-held part;
Two inserting and expanding rods made of elastic materials and symmetrically arranged;
the handheld part is provided with an adjusting module for adjusting the rotation angle of the inserted unfolding rod;
insert the expansion rod, insert expansion rod movable mounting and be expansion section, crooked section and connection extension section from distal end to proximal end in proper order on handheld portion, the axis of expansion section and connection extension section is parallel to each other, and first tensioning mounting hole has been seted up to the distal end of expansion section, and the second tensioning mounting hole has been seted up to the proximal end position of expansion section.
The beneficial effects are that:
According to the device, the angle of the inserted expansion rod is accurately controlled through the adjusting module, so that the expansion state of the sheet-shaped implant can be accurately adjusted, the implant is ensured to be expanded to a proper position in a required area, and the problem that the expansion process is difficult to control in the traditional device is avoided;
the suture is adopted to tighten the sheet-shaped implant, and the control of the adjusting module to insert the unfolding rod is combined, so that the implant can be effectively prevented from being damaged in the transportation and unfolding processes, and the integrity and success rate of the implant are improved;
the implant transportation device provided by the invention can improve the use efficiency and success rate of implants and bring higher safety and reliability for implant application in the medical and bioengineering fields by accurately controlling the unfolding state of the implants and reducing the damage of the implants;
according to the surgical operation channel, the insertion and expansion rod is designed to be of an elastic telescopic structure and matched with the linear limiting section, so that the insertion and expansion rod is ensured to be in a folded state when passing through the surgical operation channel, the size of the channel is obviously reduced, and the trauma to a patient is reduced;
according to the invention, through adopting the combination of the second adjusting slide block and the fixed adjusting block, the free rotation and the axial movement of the elastic inserting rod are ensured, and through the cooperation of the guide boss and the space cam groove, the accurate control and the positioning of the unfolding section are realized, the adjusting stability is improved, and the blocking phenomenon caused by stress concentration is avoided;
The expansion and rotation of the elastic insertion rod are controlled, so that the expansion section can smoothly move inside and outside the guide tube, and stable expansion and recovery of the implant are ensured. The whole operation flow is simple and efficient, the operation of medical staff is convenient, and the operation efficiency is improved.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an overall block diagram of an embodiment of the present disclosure;
FIG. 2 is a schematic diagram illustrating another state of an embodiment of the present disclosure;
FIG. 3 is an internal structure of an embodiment of the present disclosure;
FIG. 4 is a block diagram of the present embodiment with a deployment rod inserted;
FIG. 5 is a block diagram of an adjusting slider according to the present embodiment;
FIG. 6 is a schematic view of the suture line during operation of the present embodiment;
FIG. 7 is a view showing the whole construction of embodiment 2;
FIG. 8 is a view showing the structure of a hand-held portion of embodiment 2;
FIG. 9 is a structural view showing the insertion of the deployment rod of embodiment 2;
FIG. 10 is a schematic view showing the movement of the insertion deployment rod of example 2;
FIG. 11 is a schematic view showing the internal structure of the hand-held portion of embodiment 2;
fig. 12 is a schematic diagram of a second adjusting slider according to embodiment 2.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Example 1: the application discloses a two-stage telescopic implant conveying device which is suitable for conveying and unfolding sheet implants. Through the motion of effective control insertion expansion rod, realized the accurate transportation and the expansion to the slice implant to solve the fragile, the difficult problem of control in the slice implant transportation that exists among the prior art.
The implant delivery device includes a hand-held portion and two insertion deployment rods, a left insertion deployment rod and a right insertion deployment rod, respectively. Each inserted expansion rod consists of an expansion section, a bending section and a connecting extension section, wherein the axes of the expansion section and the connecting extension section are parallel to each other and are connected with the bending section through a fillet transition. The distal end of the insertion deployment rod is provided with a first tensioning mounting hole, and the proximal end position is provided with a second tensioning mounting hole.
The four corners of the sheet implant are provided with the stitching lines, the stitching lines respectively penetrate through the second tensioning mounting holes and tighten the sheet implant through traction stitching lines, and the hand-held part is provided with the adjusting module for adjusting the angle of the inserted unfolding rod so as to control the unfolding state of the sheet implant. The adjustment module accomplishes the adjustment by applying torque directly to the inserted deployment rod or by way of an adjustment knob.
Further, the insertion and expansion rod is made of elastic materials, and preferably nickel-titanium alloy or stainless steel.
1-5, The device comprises a hand-held part 2, wherein two insertion and expansion rods 1 which are symmetrically arranged are movably arranged on the hand-held part 2, and the two insertion and expansion rods 1 are respectively a left insertion and expansion rod 10 and a right insertion and expansion rod 20;
The insertion expansion rod 1 sequentially comprises an expansion section 101, a bending section 102 and a connection extension section 103 from the distal end to the proximal end, the axes of the expansion section 101 and the connection extension section 103 are parallel to each other, the expansion section 101, the connection extension section 103 and the bending section 102 are in transition through a round angle, a 1001 is arranged at the distal end of the expansion section 101, and a second tensioning mounting hole 1002 is arranged at the proximal end of the expansion section 101;
The hand-held part 2 is provided with an adjusting module for adjusting the angle of the inserted unfolding rod 1. The adjusting angle of the inserting and expanding rod 1 is 0-90 degrees.
The specific operation steps used by the device are as follows;
firstly, two inserted expansion rods 1 are adjusted to an open position, and at the moment, the expansion sections 101 on the left inserted expansion rod 10 and the right inserted expansion rod 20 are positioned at a mutually far position; as shown in fig. 6, the sheet-like implant 9 is disposed between the two expansion sections 101, and by disposing stitches at four corners of the sheet-like implant 9, the stitches are respectively passed through 1001 and the second tension mounting hole 1002 to tighten the sheet-like implant 9 by pulling the stitches;
The adjusting module adjusts the two inserting and expanding rods 1 to a folding position, wherein the expanding sections 101 on the left inserting and expanding rod 10 and the right inserting and expanding rod 20 are positioned close to each other, the position is set to be 0 DEG, the sheet-shaped implant 9 fixed by the suture is in a folding state, and the inserting and expanding rods 1 and the sheet-shaped implant 9 in the state are transported to an area needing operation through a channel;
The two inserting and expanding rods 1 are adjusted to the open position through the adjusting module, at the moment, the expanding sections 101 on the left inserting and expanding rod 10 and the right inserting and expanding rod 20 are positioned at the mutually far positions, and the left inserting and expanding rod 10 and the right inserting and expanding rod 20 rotate by 90 degrees and-90 degrees relative to the folding positions respectively, so that the sheet-shaped implant 9 is conveniently expanded for operation;
after the operation is completed, the two inserted deployment rods 1 are adjusted to the folded position by the adjusting module, and the inserted deployment rods 1 are taken out through the channel.
In some embodiments, the insertion deployment rod 1 may be made of a stainless steel tube having a diameter of 2-4mm, the horizontal distance between the axis of the deployment section 101 and the connecting extension section 103 being 8-30mm, preferably 3mm, and the horizontal distance between the axis of the deployment section 101 and the connecting extension section 103 being 15mm. The hand-held part 2 is processed by adopting an injection molding mode.
In some disclosures, the hand-held part 2 is provided with a deployment rod mounting hole 201, the insertion deployment rod 1 is movably mounted in the deployment rod mounting hole 201, the proximal end of the deployment rod mounting hole 201 is provided with an axial fixing block mounting hole 202, an axial fixing block 5 is mounted in the axial fixing block mounting hole 202, the proximal end of the insertion deployment rod 1 is movably mounted in the axial fixing block 5, the insertion deployment rod 1 and the axial fixing block 5 are mounted through a rotating bearing and an annular clamping groove, and thus the insertion deployment rod 1 can be ensured to be axially fixed and simultaneously can freely rotate.
In some disclosures, the adjusting module comprises an adjusting slide block 4, wherein two adjusting through holes 401 for inserting the unfolding rod 1 are formed in the adjusting slide block 4, and guide bosses 402 are arranged in the adjusting through holes 401;
The outer side of the connecting extension section 103 is provided with a space cam groove 104, the space cam groove 104 comprises a spiral groove 106, two ends of the spiral groove 106 are respectively provided with a first linear groove 105 and a second linear groove 107, the first linear groove 105 and the second linear groove 107 are communicated with the space cam groove 104 through fillet transition, and the guide boss 402 is movably arranged in the space cam groove 104;
When the adjusting slide block 4 is positioned in the first linear groove 105, the two inserting and expanding rods 1 belong to folding positions, when the adjusting slide block 4 is positioned in the first linear groove 105, the two inserting and expanding rods 1 belong to unfolding positions, and the lengths of the first linear groove 105 and the second linear groove 107 are larger than the length of the adjusting slide block 4, so that stability after the inserting and expanding rods 1 are adjusted is guaranteed. The left insertion deployment lever 10 and the right insertion deployment lever 20 are rotated by 90 ° clockwise and counterclockwise, respectively, when the adjustment slider 4 moves from the first linear groove 105 to the second linear groove 107, by changing the movement of the adjustment slider 4 on the connection extension 103 such that the adjustment through hole 401 slides in the space cam groove 104 to drive the rotation of the insertion deployment lever 1.
The hand-held part 2 is provided with a slide block mounting groove 203, the adjusting slide block 4 is movably mounted in the slide block mounting groove 203, a pushing block safety groove 204 is formed above the slide block mounting groove 203, a pushing slide block 3 is mounted in the pushing block safety groove 204, the pushing slide block 3 is fixedly connected with the adjusting slide block 4, the movement of the adjusting slide block 4 is completed by pushing the pushing slide block 3, furthermore, the side surface of the pushing block safety groove 204 is provided with a positioning boss 205, and the side surface of the pushing slide block 3 is provided with a positioning slide groove matched with the positioning boss 205 to ensure the sliding stability of the pushing slide block 3.
The rotational adjustment of the left 10 and right 20 insertion deployment rods to be described is linear so that the angle at which the deployment section 101 opens can be flexibly rotated in operation as required.
In some embodiments, a plurality of space cam grooves 104 distributed circumferentially are arranged on the outer side of the connecting extension section 103, so that the stability of the adjusting slide 4 for driving the inserted deployment rod 1 can be ensured by multi-point forced driving. Preferably, 2 to 3 space cam grooves 104 are provided, so that the stability of stress can be ensured, and the excessive side wall thinning caused by excessive space cam grooves 104 can be avoided.
In some embodiments, the adjustment module directly applies torsion to the insertion deployment rod 1 to complete the adjustment, which may be specifically provided with an adjustment knob at the proximal end of the connection extension 103, and further, the left insertion deployment rod 10 and the right insertion deployment rod 20 are provided with gears engaged with each other, so that the left insertion deployment rod 10 and the right insertion deployment rod 20 can be adjusted simultaneously by one adjustment knob.
In some embodiments, a third tensioning mounting hole 1003 is formed at a fillet transition position between the bending section 102 and the unfolding section 101, so that traction tensioning is performed through 1001 and the third tensioning mounting hole 1003, and through such design, the oblique pulling of the suture at the position of the third tensioning mounting hole 1003 can ensure that the sheet-shaped implant 9 can be tensioned in the horizontal and vertical directions, so that the tensioning state of the sheet-shaped implant 9 can ensure the operation effect.
In some embodiments, two sides of the hand-holding part 2 are provided with arc-shaped bosses 210 in a sword grid shape, and the arc-shaped bosses 210 on two sides are sequentially provided with a first suture fixing clamping seam 2101, a second suture fixing clamping seam 2102, a third suture fixing clamping seam 2103 and a fourth suture fixing clamping seam 2104, so that the suture on the sheet-shaped implant 9 can be clamped into the suture fixing clamping seams to be fixed.
Example 2; as shown in fig. 1 to 12, in order to reduce the damage to the patient caused by the reduction of the diameter of the passage as much as possible, a two-stage telescopic implant transportation apparatus is proposed, which is basically the same as that of the above-mentioned embodiment 1, and in order to reduce the damage to the patient caused by the reduction of the diameter of the passage as much as possible, there is a difference from embodiment 1 in that the bending section of the insertion and expansion rod is elastically telescopic, so that the insertion and expansion rod is ensured to be in a folded state when passing through the passage in cooperation with the linear limit section, so that the size of the passage is ensured to be reduced as much as possible, and the trauma to the patient is reduced.
In this embodiment, insert expansion rod movable mounting on handheld portion, be expansion section, bending section and connection extension section from distal end to proximal end in proper order, the axis of expansion section and connection extension section is parallel to each other, and first tensioning mounting hole has been seted up to the distal end of expansion section, and the proximal end position of expansion section has seted up the second tensioning mounting hole. The insertion and deployment rod is made of a high-elasticity material, and nickel-titanium metal or high-elasticity stainless steel is recommended. When the inserted expansion rod passes through the operation channel, the guiding section is pulled to limit the inserted expansion rod, so that the inserted expansion rod is elastically deformed, and the horizontal distance between the expansion section and the connecting extension section is reduced, so that the purpose of passing through the operation channel is achieved.
Specifically, as shown in fig. 7, the traction guiding section of the embodiment may be provided with a guiding tube 206 at the front end of the hand-holding portion 2, the guiding tube 206 is hollow, the insertion and deployment rod is an elastic insertion rod 6, the whole body is made of nitinol into a tube shape, the elastic insertion rod 6 is disposed in the guiding tube 206, and the deployment section of the elastic insertion rod 6 is elastically deformed inwards by controlling the relative positions of the elastic insertion rod 6 and the guiding tube 206 so that the guiding tube 206 is in contact with the inner wall of the guiding tube 206 when passing through the channel, and the deployment section is located in the guiding tube 206.
When the device is used, firstly, an implant is fixed on an unfolding section through a suture, the relative positions of a guide tube 206 and an elastic insertion rod 6 are changed to enable the unfolding section to be positioned in the guide tube 206, the guide tube 206 is inserted into a working area from a channel, the relative positions of the guide tube 206 and the elastic insertion rod 6 are adjusted to enable the unfolding section to be separated from the guide tube 206 and positioned at the far end position of the guide tube 206, the unfolding section on the elastic insertion rod 6 is released from contact and is reset, the elastic insertion rod 6 comprises a first elastic insertion rod 61 and a second elastic insertion rod 61, at the moment, the first elastic insertion rod 61 and the second elastic insertion rod 61 are arranged in parallel, the implant is opened by rotating the first elastic insertion rod 61 and the second elastic insertion rod 61 in opposite directions, the implant is completely opened after the first elastic insertion rod 61 and the second elastic insertion rod 61 are rotated by 90 degrees, the implant is fixed in an operation mode, and the first elastic insertion rod 61 and the second elastic insertion rod 61 are rotated in opposite directions after the implant is fixed, when the first elastic insertion rod 61 and the second elastic insertion rod 61 are arranged in parallel, the channel 206 is taken out, and the operation is completed by changing the relative positions of the guide tube 206; this arrangement allows a greater tension to be achieved than if the tensioning of the implant was accomplished directly by the spring force while avoiding damage to the implant due to momentary opening.
Further, the relative positions of the guide tube 206 and the elastic insertion rod 6 may be achieved by the movement of the guide tube 206 or the elastic insertion rod 6;
In some embodiments, the elastic insertion rod 6 is controlled to stretch to complete the contradiction and shrinkage of the unfolding section, in the embodiments, the handheld part 2 is formed in a split type, the handheld part 2 comprises an upper shell 220 and a lower shell 230, opening sliding grooves 2301 which are mutually matched to form an adjusting sliding block mounting groove are formed in the inner sides of the upper shell 220 and the lower shell 230, an adjusting sliding block mounting opening groove 2201 is formed in the upper shell 220, an adjusting module comprises a second adjusting sliding block 240 and a fixed adjusting block, the second adjusting sliding block 240 is mounted in the adjusting sliding block mounting groove, the elastic insertion rod 6 is movably mounted on the second adjusting sliding block 240, a bearing with an inner ring matched with the elastic insertion rod 6 is arranged in the second adjusting sliding block 240, so that the elastic insertion rod 6 can freely rotate and can be driven by the second adjusting sliding block 240 to axially move, a fixed adjusting block is arranged in the adjusting sliding block mounting groove, the fixed adjusting block is similar to the adjusting sliding block 4 in a fixed mounting groove, a through hole for the elastic insertion rod 6 to pass through is formed in the fixed adjusting block, and four circumferentially distributed guide bosses are arranged in the through hole;
The elastic insertion rod 6 is sequentially provided with a second connecting extension section 601, a second bending section 602 and a second expanding section 603 from the proximal end to the distal end, the second connecting extension section 601 is provided with four second space cam grooves 6011 distributed circumferentially, and the second space cam grooves 6011 are sequentially provided with a cam first straight line section 6012, a cam first spiral section 6013 and a cam second straight line section 6014 from the proximal end to the distal end; a guide boss in the fixed adjustment block is mounted in the second space cam groove 6011.
When the device is used;
Firstly, fixing the implant on the unfolding section through a suture, wherein a guide boss on a fixed adjusting block is positioned in a first straight line section 6012 of the cam;
The elastic insertion rod 6 is pushed to move backwards through the second adjusting slide block 240, so that the guide boss on the fixed adjusting block moves from the cam first straight line segment 6012 to the cam second straight line segment 6014 through the cam first spiral segment 6013, and at the moment, the first elastic insertion rod 61 and the second elastic insertion rod 61 are guided by the cam first spiral segment 6013 to rotate in opposite positions to enable the first elastic insertion rod 61 and the second elastic insertion rod 61 to be clung to each other in parallel, and the implant is accommodated;
Continuing to push the elastic insertion rod 6 to move backwards through the second adjusting slide block 240, so that the relative positions of the guide tube 206 and the elastic insertion rod 6 are changed, and when the unfolding section enters the guide tube 206, the elastic insertion rod 6 is elastically deformed and stretches in the guide tube 206 under the interference constraint, and the guide boss is positioned in the cam second straight line section 6014;
Inserting the guide tube 206 from the channel into the working area;
continuing to push the elastic insertion rod 6 to move forwards through the second adjusting slide block 240, so that the unfolding section is separated from the guide tube 206 and is positioned at the far end position, the unfolding section on the elastic insertion rod 6 is released from the contact and is reset, and the guide boss is positioned in the cam second straight-line section 6014;
Continuing to push the elastic insertion rod 6 to move forwards through the second adjusting slide block 240, the guide boss moves into the cam first straight line segment 6012 from the cam second straight line segment 6014 through the cam first spiral segment 6013, and the first elastic insertion rod 61 and the second elastic insertion rod 61 rotate reversely to open the implant through the guide interference of the second connecting extension segment 601, so that the operation is started;
after completion of the task, the device is removed from the channel by pushing the elastic insertion rod 6 backwards by means of the second adjustment slider 240, so that a greater tensioning force can be obtained with respect to the tensioning opening of the implant by means of the elastic force directly while avoiding damage to the implant due to momentary opening.
In some embodiments, the end of the guide tube 206 near the hand-held portion 2 is provided with a traction suture threading hole 2202, so that traction sutures on four corners of the implant pass through the guide tube 206 and are fixed in the suture fixing clamping seams after passing through the traction suture threading hole 2202.
In some embodiments, the second adjusting slider 240 includes an upper pushing block 2401 for pushing and a lower pushing block 2402 disposed below the upper pushing block 2401, a bearing mounting through hole 2403 is disposed on the lower pushing block 2402, and a bearing is mounted in the bearing mounting through hole 2403, and the bearing may be fixed by integrally injection molding, glue, a threaded fixing hole 2404 and a collision bolt.
Further, the fixing manner of the elastic insertion rod 6 and the bearing inner ring in the bearing mounting through hole 2403 may be interference, glue, clamping groove, etc., and it is recommended to use interference and set a fixing ring groove at the mounting position of the elastic insertion rod 6 for fixing.
In some embodiments, as shown in fig. 11, two rigid guide rods 9 are disposed in the opening chute 2301, the rigid guide rods 9 are fixedly mounted on the lower housing 230 through guide rod fixing blocks 901, the rigid guide rods 9 can be mounted after the elastic insertion rod 6 is mounted, and the guide rod fixing blocks 901 are fixedly connected with the lower housing 230 through glue or threads;
The elastic insertion rod 6 is of a hollow tubular design, the rigid guide rod 9 is arranged in the elastic insertion rod 6, so that pressure can be applied to the inner wall of the elastic insertion rod 6 through the change of the relative positions of the rigid guide rod 9 and the elastic insertion rod 6 to achieve the same effect as that of the guide tube 206, meanwhile, the fixed traction suture routing of the implant is better in tensioning and fixing effect without passing through the traction suture threading hole 2202, and meanwhile, the diameter of the surgical channel can be further reduced by removing the wall thickness of the guide tube 206, so that the trauma of a patient is reduced.
In some embodiments, the second space cam groove 6011 is provided with a cam first straight line segment 6012, a cam first spiral segment 6013, a cam second straight line segment 6014, a cam second spiral segment 6015, and a cam third straight line segment 6016 in order from the proximal end to the distal end; wherein the helix angle of the cam first helical segment 6013 and the cam third straight segment 6016 is 90 degrees;
Two fixed adjusting blocks, namely a first fixed adjusting block 7 and a second fixed adjusting block 8, are arranged in the adjusting slide block mounting groove, and when a guide boss on the first fixed adjusting block 7 is positioned in a third straight-line section 6016 of the cam, as shown in fig. 10, a guide boss on the second fixed adjusting block 8 is positioned in a second straight-line section 6014 of the cam, and at the moment, the first elastic inserting rod 61 and the second elastic inserting rod 61 are mutually parallel and are gathered;
When the guide boss on the first fixed adjusting block 7 passes through the cam second spiral section 6015, the guide boss on the second fixed adjusting block 8 passes through the cam first spiral section 6013, and at this time, the first elastic insert rod 61 and the second elastic insert rod 61 are rotated outwardly from each other;
When the guide boss on the first fixed adjusting block 7 is located in the second straight-line segment 6014 of the cam, the guide boss on the second fixed adjusting block 8 passes through the first straight-line segment 6012 of the cam, and at this time, the first elastic insertion rod 61 and the second elastic insertion rod 61 are arranged horizontally in a mirror image manner, so that the opening is completed.
Through the design, the stability of regulation can be ensured through a plurality of fixed regulating blocks, and the stress concentration is avoided leading to the card to die.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (13)
1. A two-stage telescoping implant delivery device, the device comprising:
A hand-held part;
Two inserting and expanding rods made of elastic materials and symmetrically arranged;
the handheld part is provided with an adjusting module for adjusting the rotation angle of the inserted unfolding rod;
insert the expansion rod, insert expansion rod movable mounting and be expansion section, crooked section and connection extension section from distal end to proximal end in proper order on handheld portion, the axis of expansion section and connection extension section is parallel to each other, and first tensioning mounting hole has been seted up to the distal end of expansion section, and the second tensioning mounting hole has been seted up to the proximal end position of expansion section.
2. A two-stage telescopic implant carrier according to claim 1, wherein the connecting extension is provided with a spatial cam slot for angle adjustment; the adjusting module is provided with a guide boss matched with the space cam groove.
3. A two-stage telescopic implant carrier according to claim 2, wherein the angle of insertion of the deployment rod is controlled by changing the position of the guide boss within the spatial cam slot by movement of the guide boss.
4. A two-stage telescopic implant carrier according to claim 2, wherein the angle of insertion of the deployment rod is controlled by changing the position of the guide boss within the spatial cam slot by movement of the insertion deployment rod.
5. A two-stage telescopic implant transport device according to claim 3, wherein the adjustment module comprises a slidable adjustment slider, two adjustment through holes are formed in the adjustment slider for inserting the deployment rod therethrough, and guide bosses are provided in the adjustment through holes.
6. The two-stage telescopic implant carrier according to claim 4, wherein the front end of the hand-held portion is provided with a guide tube, and the insertion deployment rod is disposed in the guide tube.
7. The two-stage telescoping implant delivery device of claim 6, wherein said adjustment module comprises an adjustment slide and a fixed adjustment block;
The adjusting slide block is used for driving the reciprocating motion of the inserting and expanding rod;
A guide boss which is in contact with the space cam groove is arranged in the fixed regulating block.
8. The two-stage telescoping implant carrier assembly of claim 7, wherein said adjustment slide comprises an upper push block for pushing and a lower push block disposed below the upper push block;
the lower pushing block is provided with a bearing installation through hole, and a bearing for fixing the inserted unfolding rod is installed in the bearing installation through hole.
9. The two-stage telescopic implant transportation apparatus according to claim 7, wherein a through hole for the insertion of the deployment rod is formed in the fixed adjusting block, and a guide boss is formed in the through hole;
The fixed adjusting block is fixedly arranged in the mounting groove in the handheld part.
10. The two-stage telescopic implant delivery apparatus according to claim 7, wherein the spatial cam slot comprises, in order from the proximal end to the distal end, a cam first straight line segment, a cam first spiral segment, a cam second straight line segment, a cam second spiral segment, and a cam third straight line segment; wherein the spiral angle of the first spiral section of the cam and the third straight line section of the cam is 90 degrees;
Two fixed adjusting blocks are arranged in the hand-held part;
When the guide boss on the first fixed adjusting block is positioned at the third straight-line section of the cam, the guide boss on the second fixed adjusting block is positioned at the second straight-line section of the cam;
When the guide boss on the first fixed adjusting block passes through the cam second spiral section, the guide boss on the second fixed adjusting block passes through the cam first spiral section;
when the guide boss on the first fixed adjusting block is positioned on the second straight line segment of the cam, the guide boss on the second fixed adjusting block passes through the first straight line segment of the cam.
11. The two-stage telescoping implant carrier assembly as in claim 4, wherein two rigid guide rods are disposed within said handle portion, said flexible insertion rod being of hollow tubular design, said rigid guide rods being disposed within said flexible insertion rod.
12. The two-stage telescopic implant transportation apparatus according to claim 1, wherein the two sides of the holding part are provided with arc-shaped bosses, and the arc-shaped bosses on the two sides are provided with a plurality of suture fixing clamping seams.
13. A two-stage telescopic implant carrier according to claim 2, wherein the outer side of the connecting extension is provided with 4 circumferentially distributed spatial cam grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410685850.3A CN118453197A (en) | 2024-05-30 | 2024-05-30 | Two-stage telescopic implant conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410685850.3A CN118453197A (en) | 2024-05-30 | 2024-05-30 | Two-stage telescopic implant conveying device |
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| Publication Number | Publication Date |
|---|---|
| CN118453197A true CN118453197A (en) | 2024-08-09 |
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|---|---|---|---|
| CN202410685850.3A Pending CN118453197A (en) | 2024-05-30 | 2024-05-30 | Two-stage telescopic implant conveying device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105208971A (en) * | 2012-12-27 | 2015-12-30 | 导管技术股份有限公司 | Apparatus and set for folding or unfolding a medical implant comprising a clamping mechanism, and method |
| CN110381860A (en) * | 2017-02-02 | 2019-10-25 | 坎努弗洛公司 | For conveying and the system and method for mapping surgical implantation material |
| CN112512462A (en) * | 2018-05-07 | 2021-03-16 | 阿瑟雷克斯股份有限公司 | Surgical tools and arthrokinematic reconstruction techniques |
| CN116019598A (en) * | 2022-12-22 | 2023-04-28 | 上海埃尔翡生命科技有限公司 | Surgical tool |
-
2024
- 2024-05-30 CN CN202410685850.3A patent/CN118453197A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105208971A (en) * | 2012-12-27 | 2015-12-30 | 导管技术股份有限公司 | Apparatus and set for folding or unfolding a medical implant comprising a clamping mechanism, and method |
| CN110381860A (en) * | 2017-02-02 | 2019-10-25 | 坎努弗洛公司 | For conveying and the system and method for mapping surgical implantation material |
| CN112512462A (en) * | 2018-05-07 | 2021-03-16 | 阿瑟雷克斯股份有限公司 | Surgical tools and arthrokinematic reconstruction techniques |
| CN116019598A (en) * | 2022-12-22 | 2023-04-28 | 上海埃尔翡生命科技有限公司 | Surgical tool |
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