CN113558828B - Detachable implantation instrument and operation method thereof - Google Patents
Detachable implantation instrument and operation method thereof Download PDFInfo
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- CN113558828B CN113558828B CN202111116815.2A CN202111116815A CN113558828B CN 113558828 B CN113558828 B CN 113558828B CN 202111116815 A CN202111116815 A CN 202111116815A CN 113558828 B CN113558828 B CN 113558828B
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- connecting element
- clamping
- implantation instrument
- anchoring
- hook
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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
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2409—Support rings therefor, e.g. for connecting valves to tissue
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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
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2421—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with non-pivoting rigid closure members
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- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Transplantation (AREA)
- Oral & Maxillofacial 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)
- Surgical Instruments (AREA)
Abstract
The invention discloses a detachable implantation instrument and an operation method thereof, wherein the detachable implantation instrument comprises: a first connecting member having an anchoring portion at one end thereof and at least one first connecting portion extending in an axial direction at the other end thereof; a second connecting member provided with at least one second connecting portion extending in a radial direction at a sidewall thereof adjacent to an end portion of the first connecting member; after the anchoring part anchors human tissues, the first connecting element is pulled to the second connecting element, and then the first connecting element is rotated along the axis of the first connecting element, so that the first connecting part and the second connecting part are clamped. The invention can realize the effect of locking the two connecting pieces at any angle; in addition, after clamping, the clamping angle of the clamping part of the implantation instrument can be adjusted, so that the safety and the operation convenience of the operation are improved; after the two connecting elements are locked, the two connecting elements can be unlocked at any time, so that an operator can reposition the target point; the stability of locking is improved by adopting a double connection mode; the invention has simple structure and low production cost.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a detachable implantation instrument and an operation method thereof.
Background
The human body implantation instrument has small size and high precision. In particular, for anchoring and clamping devices used for treating heart valve diseases, the requirements on the design of the structure, the reliability of connection and the like are particularly strict. The current clamping instrument is provided with a clamping arm and a rotating arm, and is responsible for clamping tissues so as to achieve the purpose of reducing the valve annulus. The anchoring member and the clamping instrument need to be locked together to prevent the instrument from being dislodged from the tissue. Due to the limited length of the locking mechanism of the clamping instrument, the anchoring member and the clamping instrument can only be locked if the clamping arms are clamped to a small angle. However, when a large amount of tissues are clamped, the two tissues cannot be effectively locked, so that huge surgical risks are caused; when the length of the locking mechanism is lengthened, the problem that the locking mechanism exceeds the maximum outer diameter of the clamping instrument when the clamping angle is zero occurs, and the operation effect is influenced. If an operator fails to engage the anchor member and the grasping apparatus, such as if the grasping arm has not been clamped within the design angle, the anchor member and the grasping apparatus are disengaged from the delivery system, and there is a problem in that the anchor member and the grasping apparatus cannot be locked. Therefore, there is a need to provide a new implantation instrument to solve at least one of the above problems of the prior art.
Disclosure of Invention
To overcome the above problems, the present invention provides a detachable implantation instrument and a method of operating the same. It can realize the effect of two connecting pieces of locking under the arbitrary angle. In addition, after clamping, the clamping angle of the clamping part of the implantation instrument can be adjusted, so that the safety and the operation convenience of the operation are improved; after the two connecting elements are locked, the two connecting elements can be unlocked at any time, so that an operator can reposition the target point. The double-connection mode is adopted to improve the locking stability, and meanwhile, the first heavy-duty truck connection has the effect of solving the problem that two connecting elements are connected when the clamping angle of the clamping component is too large. The invention has simple structure and reduces the production cost.
To achieve the above object, according to an aspect of an embodiment of the present invention, there is provided a detachable implantation apparatus including:
a first connecting member having an anchoring portion at one end thereof and at least one first connecting portion extending in an axial direction at the other end thereof;
a second connecting member provided with at least one second connecting portion extending in a radial direction at a sidewall thereof adjacent to an end portion of the first connecting member;
after the anchoring part anchors human tissues, the first connecting element is pulled to the second connecting element, and then the first connecting element is rotated along the axis of the first connecting element, so that the first connecting part and the second connecting part are clamped.
Optionally, the other end of the first connecting element is detachably connected with a rod piece, and the rod piece extends along the axial direction of the first connecting element and penetrates through the inner hole of the second connecting element; the rod is used for pulling the first connecting element to move towards the second connecting element and controlling the first connecting element to rotate along the axis of the first connecting element.
Optionally, the first connecting portion is a hook, the hook is arranged on one side of a limiting disc of the first connecting element, and the anchoring portion is arranged on the other side of the limiting disc;
the second connecting part is a protruding part which is arranged on the outer peripheral side of a boss of a clamping arm base of the second connecting element;
when the implantation instrument is connected, the hook hooks the protruding part, and the protruding part is clamped into the groove of the hook, so that the first connecting part and the second connecting part are clamped.
Optionally, the first connecting portions are uniformly distributed along the peripheral side of the limiting disc; the second connecting parts are uniformly distributed along the outer periphery of the clamping arm base.
Optionally, an outer contour of the first connection portion, which is close to the second connection portion, is any one of an inclined plane shape, a planar shape, a triangular shape, an arc shape, or an oval shape.
Optionally, the first connecting element is an anchoring part, a part facing the human tissue is a screw structure, and the first connecting element rotates along with the rotation of the rod to anchor the screw structure into the human tissue.
Optionally, the second connecting element is a clamping component, and the clamping component includes a rotating arm base and at least two rotating arms; one end of the rotating arm is pivoted on the rotating arm base; the side of the swivel arm facing the anchor part is provided with at least one barb which can be inserted into the screw structure of the anchor part to lock the first and second connection elements.
Optionally, the clamping part further comprises at least two clamping arms, the middle parts of the clamping arms are pivoted with the other ends of the rotating arms, and one ends of the clamping arms are pivoted with the clamping arm base.
According to a second aspect of the embodiments of the present invention, there is provided a method of operating a detachable implantation instrument, wherein the method of operating is for operating any of the implantation instruments described in the first aspect without barbs; the method comprises the following steps:
after the first connecting element is rotated to enable the anchoring part to anchor human tissues, the first connecting element is pulled towards the second connecting element;
then the first connecting element is rotated along the axis of the first connecting element, so that the first connecting part abuts against the second connecting part;
and the restoring force of the human tissue is utilized to reversely pull the first connecting element to enable the first connecting part and the second connecting part to be clamped.
Optionally, the first connecting element is pulled towards the second connecting element, so that the snap connection is disengaged;
rotating the first connecting element along the axis of the first connecting element in the opposite direction to separate the first connecting part from the second connecting part;
and after the first connecting element is rotated reversely to separate the anchoring part from the human tissue, the anchoring position of the anchoring part is readjusted.
According to a third aspect of embodiments of the present invention, there is provided a method of operating a detachable implantation instrument, wherein the method of operating any of the implantation instruments described in the first aspect with barbs; the method comprises the following steps:
after the first connecting element is rotated to enable the anchoring part to anchor human tissues, the first connecting element is pulled towards the second connecting element;
then the first connecting element is rotated along the axis of the first connecting element, so that the first connecting part abuts against the second connecting part;
reversely pulling the first connecting element by utilizing the restoring force of the human tissue to clamp and connect the first connecting part and the second connecting part;
and driving the at least two rotating arms to move towards each other, so that the barbs are inserted into the screw structures of the anchoring part to lock the first connecting element and the second connecting element.
The technical scheme of the invention has the following advantages or beneficial effects:
(1) after the anchoring part anchors human tissues, the first connecting element is pulled to the second connecting element, and then the first connecting element is rotated along the axis of the first connecting element so as to enable the first connecting part and the second connecting part to be clamped; the problem of prior art centre gripping arm just can lock two connecting pieces when setting for the angle within can be solved, under having realized arbitrary angle, the effect that can all lock two connecting pieces. And the clamping part of the implantation instrument can be adjusted after clamping, so that the safety and the operation convenience of the operation are improved.
(2) The setting of spacing dish not only provides mounting platform for first connecting portion, and it also can restrict the displacement volume of operating personnel pulling first connecting element, and in addition, spacing dish can also restrict the degree of depth that the anchor portion anchor was gone into the tissue, has improved the accuracy of operation, security and the convenience of operation on the whole.
(3) After the two connecting elements are locked, the two connecting elements can be unlocked at any time, so that an operator can reposition the target point.
(4) The stability of locking is improved by adopting a double connection mode. The first locking mode is a clamping mode, and the second locking mode is a barb locking mode.
(5) The invention has simple structure, does not need to modify the design scheme of the existing conveying system, can complete the connection function only by arranging the connecting part described by the invention on the corresponding connecting element to be connected, and reduces the production cost.
Drawings
The drawings are included to provide a better understanding of the invention and are not to be construed as unduly limiting the invention. Wherein:
FIG. 1 is a schematic view of an unconnected state of a connection element according to an embodiment of the invention;
fig. 2 to 4 are schematic views of a two-connection process according to an embodiment of the present invention;
FIGS. 5-6 are schematic diagrams of alternative joint end profiles according to embodiments of the invention;
FIG. 7 is a schematic view of an anchor member according to an embodiment of the present invention;
fig. 8 is a schematic view of a connection state of a connection part according to an embodiment of the present invention;
FIG. 9 is a schematic view of a swivel arm base according to an embodiment of the present invention;
FIG. 10 is a schematic view of a rotating arm according to an embodiment of the present invention;
FIG. 11 is a schematic diagram of a double lock configuration according to an embodiment of the present invention;
FIG. 12 is a schematic view of a clamp arm base according to an embodiment of the present invention;
FIG. 13 is a schematic view of a clamp arm according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
According to one aspect of an embodiment of the present invention, a detachable implantation instrument is provided.
The detachable implantation instrument related to the embodiment of the invention is mainly used in implantation instruments, in particular to implantation instruments for treating heart valve diseases. The detachable implantation instrument comprises a first coupling member having an anchoring portion at one end, the anchoring portion being adapted to be adjacent to and secured to body tissue in use. The other end of the first connecting element has at least one first connecting portion extending in the axial direction. The connecting device also comprises a second connecting element, and the side wall of the second connecting element, which is close to the end part of the first connecting element, is provided with at least one second connecting part which extends along the radial direction. In practical use, after the anchoring part anchors the human tissue, the first connecting element is pulled towards the second connecting element, namely towards the direction of the operator, so as to reduce the distance between the first connecting element and the second connecting element. After the distance is adjusted in place, the first connecting element is rotated along the axis of the first connecting element, so that the first connecting part and the second connecting part are clamped. This connection effectively avoids the prior art need can only lock the clamping instrument and the anchor component when the clamping instrument clamping arm presss from both sides to the low-angle (such as the contained angle between two clamping arms is within 30). The locking of the two connecting elements at any time is realized, and the problem of clamping angle of a clamping instrument is not required to be considered.
Optionally, the other end of the first connecting element is detachably connected with a rod piece, and the rod piece extends along the axial direction of the first connecting element and penetrates through the inner hole of the second connecting element; the rod is used for pulling the first connecting element to move towards the second connecting element and controlling the first connecting element to rotate along the axis of the first connecting element.
Referring to the insertion instrument in one embodiment shown in fig. 1, a rod member 102 is detachably connected to the first connecting member 101 near the second connecting member 103, and the rod member 102 may be a hollow tube or a solid tube, but may have other structures. When hollow, the interior may be used to fit other components of the implantation instrument. The rod member 102 extends in the axial direction of the first connecting member 101 and passes through the inner bore of the second connecting member 103. In practice, the operator can control the position and angle of the rod by means of the transport system, such as by pulling the first connecting element towards the second connecting element, and then controlling the first connecting element to rotate along its own axis after pulling the rod into position, so as to connect the two connecting elements.
Optionally, the first connecting portion is a hook, the hook is arranged on one side of a limiting disc of the first connecting element, and the anchoring portion is arranged on the other side of the limiting disc; the second connecting part is a protruding part which is arranged on the outer peripheral side of a boss of a clamping arm base of the second connecting element; when the implantation instrument is connected, the hook hooks the protruding part, and the protruding part is clamped into the groove of the hook, so that the first connecting part and the second connecting part are clamped.
Referring to fig. 2 and 3, in one embodiment, the first connecting portion 201 is a hook, the hook is disposed on one side of the first connecting element, which is close to the second connecting element, of the limiting plate 202, and the anchoring portion is disposed on the other side of the limiting plate 202, which is far from the second connecting element or close to human tissue. The second connection portion 203 is a projection, such as a cylinder, which is provided on the outer peripheral side of a boss 205 of a clamp arm base 204 of the second connection member. As shown in fig. 3, when the implantation instrument is connected, the hook is pulled to the boss, then the hook is rotated to hook the cylinder, and finally the cylinder is clamped into the groove of the hook, so that the first connecting part and the second connecting part are clamped. In practice, as shown in fig. 4, after the hook is rotated to abut against the cylinder, the hook can rebound along the direction opposite to the pulling direction described above by using the restoring force of human tissue, so that the cylinder is clamped into the groove of the hook. Of course, in order to improve the safety of use and ensure that the operation is error-free, the operator can also manually push the hook in the reverse direction to clamp the cylinder into the groove of the hook. It should be noted that the first connecting element used in the embodiments of the present invention may be designed in a modular structure so that it can be used with a variety of existing clamping devices. Specifically, the structure of the clamping arm base of the clamping instrument in the prior art is slightly adjusted, so that the production cost is reduced, and the production efficiency is improved. In addition, the setting of spacing dish 202 not only provides mounting platform for first connecting portion, and it also can restrict the displacement volume that operating personnel pulled first connecting element, has improved the security of operation and the convenience of operation.
Optionally, the first connecting portions are uniformly distributed along the peripheral side of the limiting disc; the second connecting parts are uniformly distributed along the outer periphery of the clamping arm base. The arrangement of both connections in an even distribution is only an alternative arrangement here, but it can also take other forms of distribution. And the number of the two connecting parts can also be flexibly adjusted, such as three as shown in fig. 3.
Optionally, an outer contour of the first connection portion, which is close to the second connection portion, is any one of an inclined plane shape, a planar shape, a triangular shape, an arc shape, or an oval shape. As shown in fig. 3, after the first connecting element is pulled toward the second connecting element, in order to enable the first connecting element to rotate smoothly around its own axis, the outer profile of the first connecting portion near the second connecting portion may be any one of a bevel shape (see fig. 5), a flat shape (see fig. 6), a triangular shape (see fig. 3), a circular arc shape, or an elliptical shape. When there is a machining error, which causes the first connecting portion to be pulled against the clamp arm base, smooth rotation of the first connecting member can be ensured by the above-described contour shape.
Optionally, the first connecting element is an anchoring part, a part facing the human tissue is a screw structure, and the first connecting element rotates along with the rotation of the rod to anchor the screw structure into the human tissue. In order to facilitate a quick mounting of the body implant device, the first connection element is provided in the embodiment shown in fig. 7 as an anchor member, the part of which facing the body tissue is in the form of a screw structure. Optionally, the screw structure is needle-shaped at its end, such that in use, the first connecting element can be rotated by the rod as described above, thereby rotating the screw structure, and the needle-shaped structure can rapidly anchor the screw structure into the body tissue when the first connecting element is pressed against the body tissue.
Optionally, the second connecting element is a clamping component, and the clamping component includes a rotating arm base and at least two rotating arms; one end of the rotating arm is pivoted on the rotating arm base; the side of the swivel arm facing the anchor part is provided with at least one barb which can be inserted into the screw structure of the anchor part to lock the first and second connection elements. In one embodiment as shown in fig. 8-10, the second connecting element 801 is a clamping member, such as for clamping human tissue to reduce the annulus. The clamping member includes a rotating arm base (see fig. 9) and at least two rotating arms (see fig. 10); one end of the rotating arm is pivoted on the rotating arm base; the side of the swivel arm facing the anchor member is provided with at least one barb 802. In use, as shown in fig. 11, the barbs may be inserted into the screw structure of the anchor member to lock the first and second connecting elements.
Optionally, the clamping part further comprises at least two clamping arms, the middle parts of the clamping arms are pivoted with the other ends of the rotating arms, and one ends of the clamping arms are pivoted with the clamping arm base. As shown in fig. 11 to 13, the clamping member further includes at least two clamping arms (see fig. 13), and the middle portions of the clamping arms are pivotally connected to one end of the rotating arm. The clamping arm base shown in fig. 12 is provided with a raised connecting portion, and one end of the clamping arm is pivotally connected with the clamping arm base through the connecting portion, so that the clamping arm rotates around the connecting portion to adjust the distance between the clamping arms, further realize the clamping of human tissues, and adjust the clamping amount by adjusting the angle between the clamping arms.
According to one aspect of an embodiment of the present invention, a method of operating a detachable implantation instrument is provided.
Optionally, the method of operation is used to operate any of the implantation instruments described in the first aspect without a barb. In practice, the first connecting element is first rotated to anchor the anchoring portion to the body tissue, and then the first connecting element is pulled towards the second connecting element. Then the first connecting element is rotated along the axis of the first connecting element, so that the first connecting part abuts against the second connecting part; and the restoring force of the human tissue is utilized to reversely pull the first connecting element to enable the first connecting part and the second connecting part to be clamped. Taking the embodiment shown in fig. 1 to 4 and 11 as an example, in practice, the anchoring portion is anchored to the human tissue by first rotating the anchoring member via the rod, and then pulling the rod in the direction of the operator to pull the first connecting element towards the second connecting element. Then the anchoring part is rotated along the axis of the anchoring part, so that the first connecting part abuts against the second connecting part; and the restoring force of the human tissue is utilized to reversely pull the first connecting element to enable the first connecting part and the second connecting part to be clamped. Of course, in order to ensure the safety of the operation, the operator can also push the rod in the reverse direction to verify whether the first connecting part and the second connecting part are successfully clamped. If the clamping is not successful, the steps can be repeated until the operation is successful. This mode of operation does not require the grasping of the tissue by the grasping arms and then the controlled locking of the two connecting members. On the contrary, according to one embodiment of the invention, the two connecting parts can be clamped (namely locked) firstly, and then the clamping angle of the clamping mechanism is adjusted, so that the convenience and the safety of operation are improved.
Optionally, during the operation, if the operator is not satisfied with the anchoring portion, he can pull the first connecting element towards the second connecting element, so as to disengage said snap-connection; and then the first connecting element is rotated reversely along the axis of the first connecting element to separate the first connecting part from the second connecting part. Then, the first connecting element is rotated reversely to separate the anchoring part from human tissues, and then the anchoring position of the anchoring part is readjusted. This process may be repeated multiple times until the desired anchoring position is obtained.
According to one aspect of an embodiment of the present invention, a method of operating a detachable implantation instrument is provided. Optionally, the method of operation is for operating any of the implantation instruments described in the first aspect with a barb. In practice, first, after rotating the first connecting element to anchor the anchoring portion to the human tissue, the first connecting element is pulled toward the second connecting element; then the first connecting element is rotated along the axis of the first connecting element, so that the first connecting part abuts against the second connecting part; reversely pulling the first connecting element by utilizing the restoring force of the human tissue to clamp and connect the first connecting part and the second connecting part; the at least two pivot arms are actuated to move towards each other to cause the barbs to be inserted into the screw structure of the anchor member to lock the first and second connecting elements (see fig. 11). The double connection mode is adopted to improve the stability of locking. The first locking mode is a clamping mode, and the second locking mode is a barb locking mode.
The above-described embodiments should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A detachable implantation instrument, comprising:
a first connecting member having an anchoring portion at one end thereof and at least one first connecting portion extending in an axial direction at the other end thereof;
a second connecting member provided with at least one second connecting portion extending in a radial direction at a sidewall thereof adjacent to an end portion of the first connecting member;
the method is characterized in that:
the first connecting part is a hook, and the second connecting part is a protruding part; after the anchoring part anchors human tissues, the first connecting element is pulled to the second connecting element, and then the first connecting element is rotated along the axis of the first connecting element, so that the first connecting part and the second connecting part are clamped;
the second connecting element is a clamping component, and the clamping component comprises a rotating arm base and at least two rotating arms; one end of the rotating arm is pivoted on the rotating arm base.
2. The implantation instrument of claim 1,
the other end of the first connecting element is detachably connected with a rod piece, and the rod piece extends along the axial direction of the first connecting element and penetrates through the inner hole of the second connecting element; the rod is used for pulling the first connecting element to move towards the second connecting element and controlling the first connecting element to rotate along the axis of the first connecting element.
3. The implantation instrument of claim 1,
the hook is arranged on one side of a limiting disc of the first connecting element, and the anchoring part is arranged on the other side of the limiting disc;
the protruding portion is provided on an outer peripheral side of a boss of a clamp arm base of the second connecting element;
when the hook is connected, the convex part is hooked by the hook, and the convex part is clamped into the groove of the hook, so that the first connecting part and the second connecting part are clamped.
4. The implantation instrument of claim 3,
the first connecting parts are uniformly distributed along the peripheral side of the limiting disc; the second connecting parts are uniformly distributed along the outer periphery of the clamping arm base.
5. The implanting instrument of any of claims 1-4,
the outer contour of the first connecting part close to the second connecting part is any one of an inclined plane shape, a triangle shape, an arc shape or an oval shape.
6. The implantation instrument of claim 2,
the first connecting element is an anchoring part, the part of the first connecting element facing the human body tissue is of a screw structure, and the first connecting element rotates along with the rotation of the rod piece so as to anchor the screw structure into the human body tissue.
7. The implantation instrument of claim 6,
the side of the swivel arm facing the anchor part is provided with at least one barb which can be inserted into the screw structure of the anchor part to lock the first and second connection elements.
8. The implantation instrument of claim 7,
the clamping part further comprises at least two clamping arms, the middle parts of the clamping arms are pivoted with the other ends of the rotating arms, and one ends of the clamping arms are pivoted with the clamping arm base.
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| CN202111116815.2A CN113558828B (en) | 2021-09-24 | 2021-09-24 | Detachable implantation instrument and operation method thereof |
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| CN202111116815.2A CN113558828B (en) | 2021-09-24 | 2021-09-24 | Detachable implantation instrument and operation method thereof |
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| CN114795593B (en) * | 2022-06-28 | 2022-09-16 | 上海汇禾医疗器械有限公司 | Repeatedly-operable implantation clamping instrument |
| CN115844595B (en) * | 2023-03-03 | 2023-05-16 | 上海汇禾医疗器械有限公司 | Anchor clamps device of repeatable operation |
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| CN101754725A (en) * | 2007-07-20 | 2010-06-23 | 新特斯有限责任公司 | Polyaxial bone fixation element |
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| WO2016065033A1 (en) * | 2014-10-21 | 2016-04-28 | Jackson Roger P | Snap-on multi-planar and mono-planar receiver assemblies having integral and multi-part multipurpose positioners for pivoting and non-pivoting retainers |
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| CN110403670A (en) * | 2019-08-28 | 2019-11-05 | 上海汇禾医疗科技有限公司 | Instrument and clamp assemblies |
| CN113116429A (en) * | 2019-12-31 | 2021-07-16 | 杭州德晋医疗科技有限公司 | Integrated anchor |
| CN212490254U (en) * | 2020-02-18 | 2021-02-09 | 杭州德晋医疗科技有限公司 | Anchor with locking function, anchor component and ring-retracting system |
| CN111419475A (en) * | 2020-04-16 | 2020-07-17 | 上海汇禾医疗科技有限公司 | Assembling method of detachable connecting assembly and connecting assembly |
| CN112891024A (en) * | 2021-01-14 | 2021-06-04 | 上海汇禾医疗科技有限公司 | Anchoring device |
| CN113208778A (en) * | 2021-05-08 | 2021-08-06 | 上海汇禾医疗科技有限公司 | Anchoring device |
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2021
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| CN101754725A (en) * | 2007-07-20 | 2010-06-23 | 新特斯有限责任公司 | Polyaxial bone fixation element |
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Address after: 201207 Shanghai Pudong New Area free trade trial area, 1 spring 3, 400 Fang Chun road. Patentee after: Shanghai Huihe Medical Instrument Co.,Ltd. Patentee after: Shanghai Huihe Medical Technology Co.,Ltd. Address before: 201207 Shanghai Pudong New Area free trade trial area, 1 spring 3, 400 Fang Chun road. Patentee before: Shanghai Huihe Medical Instrument Co.,Ltd. Patentee before: Shanghai Huihe Medical Technology Co.,Ltd. |