Fixing device with absorbable rib embracing plate
阅读说明:本技术 一种具有可吸收式肋骨环抱板的固定装置 (Fixing device with absorbable rib embracing plate ) 是由 高武龙 于 2019-12-04 设计创作,主要内容包括:本发明公开了一种具有可吸收式肋骨环抱板的固定装置,包括肋骨环抱板和固定钳;肋骨环抱板包括板体、紧固机构和多个连接于板体两侧的夹爪;固定钳包括动作组件;紧固机构包括设置安装部、传动组件、第一传动臂和第二传动臂,第一传动臂和第二传动臂相对设置并分别与传动组件连接;传动组件与动作组件连接,并在动作组件的带动下驱动第一传动臂和第二传动臂相对靠近。本发明采用可生物降解的肋骨环抱板,无需术后取出,避免二次伤害患者;且在板体上新增了紧固机构,并且对固定钳进行结构上的改进,通过固定钳操作置于板体上的紧固机构来实现肋骨的加紧,以使夹爪处于最佳夹持状态,适应性广且无需二次调整,提高手术效率。(The invention discloses a fixing device with an absorbable rib embracing plate, which comprises a rib embracing plate and a fixing clamp, wherein the rib embracing plate is provided with a plurality of fixing clamps; the rib encircling plate comprises a plate body, a fastening mechanism and a plurality of clamping jaws connected to two sides of the plate body; the fixed clamp comprises an action component; the fastening mechanism comprises a mounting part, a transmission assembly, a first transmission arm and a second transmission arm, wherein the first transmission arm and the second transmission arm are oppositely arranged and are respectively connected with the transmission assembly; the transmission assembly is connected with the action assembly and drives the first transmission arm and the second transmission arm to be relatively close under the driving of the action assembly. The invention adopts the biodegradable rib surrounding plate, does not need to be taken out after operation, and avoids secondary injury to patients; and the plate body is additionally provided with a fastening mechanism, the fixing clamp is structurally improved, and the rib is fastened by operating the fastening mechanism arranged on the plate body through the fixing clamp, so that the clamping jaw is in the optimal clamping state, the adaptability is wide, secondary adjustment is not needed, and the operation efficiency is improved.)
1. A fixing device with an absorbable rib embracing plate is characterized by comprising a rib embracing plate and fixing clamps; wherein the rib surrounding plate is made of biodegradable materials;
the rib encircling plate comprises a plate body, a fastening mechanism arranged on the plate body and a plurality of clamping jaws connected to two sides of the plate body in a sliding manner;
the fixed clamp comprises a body and an action assembly arranged on the body;
the fastening mechanism comprises an installation part arranged on the top surface of the plate body, and a transmission assembly, a first transmission arm and a second transmission arm which are arranged on the installation part, wherein the first transmission arm and the second transmission arm are oppositely arranged and are respectively connected with the transmission assembly; the transmission assembly is connected with the action assembly and drives the first transmission arm and the second transmission arm to be relatively close under the driving of the action assembly, so that clamping jaws on two sides of the plate body clamp the ribs.
2. The device of claim 1, wherein the plate is circular in cross-section perpendicular to the length of the plate; the mounting part is connected with the clamping groove.
3. The fixing device with the absorbable rib embracing plate according to claim 2, wherein the bottom surface of the plate body is provided with a plurality of protrusions uniformly spaced, and a gap between two adjacent protrusions is filled with a healing accelerating coating and/or a broken bone adhesion coating.
4. The device of any of claims 1-3, wherein the actuation member comprises a first knob, a first gear, a first rack, and a first spring;
the first knob is arranged on the body and can slide on the body in a reciprocating manner along a preset direction;
the first gear is arranged in the body and is connected with the first knob;
one part of the first rack is arranged in the body, and the other part of the first rack is positioned outside the body and is meshed with the first gear;
the first elastic piece is arranged in the body and is positioned between the first rack and the body;
the transmission assembly comprises a second rack, a third rack, a second gear and a second elastic piece which are arranged on the mounting part;
the second elastic piece is positioned below the second gear and is respectively connected with the second gear and the mounting part; the first rack and the second rack are respectively positioned at two opposite sides of the second gear;
the second gear comprises a first tooth part, a second tooth part and a third tooth part which are connected in sequence; the first tooth part is connected with the first rack, and the first tooth part is provided with a limiting part which can enable the first rack to press the second gear downwards; the second tooth part is connected with the mounting part;
one end of the second rack is connected with one side of the third tooth part, and the other end of the second rack is connected with the first transmission arm; one end of the third rack is connected with the other side of the third tooth part, and the other end of the third rack is connected with the second transmission arm;
the first rack presses down the second gear to enable the second tooth part to be disconnected with the installation part and drive the second gear to rotate, so that the first transmission arm and the second transmission arm can be driven to be close to or far away from by rotation of the second gear.
5. The device of claim 4, wherein an end of the second rack away from the third tooth portion is provided with a first bending portion extending downward, and the first bending portion is connected to the first transmission arm;
one end of the third rack, which is far away from the third tooth part, is provided with a second bent part which extends downwards, and the second bent part is connected with the second transmission arm;
the plate body is provided with a first notch for the first bending part to move and a second notch for the second bending part to move.
6. The device of claim 4, wherein the mounting portion has a blind hole, and the lower portion of the blind hole is outwardly expanded to form a first through hole and a second through hole;
the axial direction of the first through hole and the axial direction of the second through hole are both vertical to the axial direction of the blind hole, and the first through hole and the second through hole are respectively positioned at two sides of the blind hole and are communicated with the blind hole;
the second gear and the second elastic piece are arranged in the blind hole, the blind hole is provided with a fourth tooth part, and the second gear is meshed with the fourth tooth part;
the second elastic piece is arranged at the bottom of the blind hole;
the second rack is inserted in the first through hole, and the second rack is inserted in the second through hole.
7. The device of claim 4, wherein the body comprises a housing, a handle, a connector barrel, a first transmission structure, and a clamping mechanism;
the handle is connected with the shell;
the connecting cylinder is connected with the shell and can rotate on the shell around the axis of the connecting cylinder; the connecting cylinder is provided with a guide hole, and the first knob is in sliding fit with the guide hole so as to drive the first gear and the first rack to slide along a preset direction
The clamping mechanism is connected with the connecting cylinder;
the first transmission structure is installed in the shell and is in transmission connection with the handle and the clamping mechanism respectively, so that the handle can drive the clamping mechanism to perform clamping action.
8. The device of claim 7, wherein the clamping mechanism comprises a second knob, a second transmission structure, a clamping bar, a rotary joint, and a clamping head;
the second knob is inserted into the connecting cylinder and can rotate around the axis of the second knob on the connecting cylinder;
the second transmission structure is arranged in the connecting cylinder and is respectively in transmission connection with the second knob and the clamp rod, so that the second knob drives the clamp rod to rotate through the second transmission structure;
the clamp rod is installed on the connecting cylinder, and the rotary joint is connected with the clamp head and the clamp rod respectively.
Technical Field
The invention relates to the technical field of surgical instruments, in particular to a fixing device with an absorbable rib encircling plate.
Background
In the operation of rib fracture connection or rib-cut thoracic reconstruction, a rib bone fracture plate is usually adopted, the bone fracture plate is fixed at the rib fracture position through a memory alloy holding claw in an operation implantation mode, and after the fracture position is healed, the bone fracture plate is taken out in an operation.
In the mode, the bone fracture plate and the holding claws need to be taken out, so that secondary body and psychological trauma of a patient is caused; in addition, the memory alloy holding claw needs to change the temperature to hold the rib tightly by the holding arm in the implantation process, so that the operation is complex; and the deformation stroke of the holding claw is determined, the holding claw can not be matched with the ribs of all patients, the two holding claws need to be unfolded through structures such as a fixing clamp and the like, the operation is very inconvenient, the operation time is prolonged, and great harm is brought to the patients.
Disclosure of Invention
The invention aims to provide a fixing device with an absorbable rib embracing plate, which aims to solve the problems that a embracing claw and a bone fracture plate need to be taken out in the existing bone fracture operation, and the bone fracture plate and the embracing claw cannot be adapted to various types of ribs.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a fixing device with an absorbable rib embracing plate comprises the rib embracing plate and a fixing clamp; wherein the rib surrounding plate is made of biodegradable materials;
the rib encircling plate comprises a plate body, a fastening mechanism arranged on the plate body and a plurality of clamping jaws connected to two sides of the plate body in a sliding manner;
the fixed clamp comprises a body and an action assembly arranged on the body;
the fastening mechanism comprises an installation part arranged on the top surface of the plate body, and a transmission assembly, a first transmission arm and a second transmission arm which are arranged on the installation part, wherein the first transmission arm and the second transmission arm are oppositely arranged and are respectively connected with the transmission assembly; the transmission assembly is connected with the action assembly and drives the first transmission arm and the second transmission arm to be relatively close under the driving of the action assembly, so that clamping jaws on two sides of the plate body clamp the ribs.
According to the fixing device with the absorbable rib embracing plate, which is provided by the invention, the biodegradable rib embracing plate is adopted, so that the rib embracing plate does not need to be taken out after operation, and secondary injury to a patient is avoided; the clamping mechanism is additionally arranged on the plate body, the fixing forceps are structurally improved, the medical speculum is used for assisting, the rib is clamped by operating the clamping mechanism arranged on the plate body through the fixing forceps, the two clamping arms of the clamping mechanism can be adjusted to the optimal clamping position, so that the clamping jaw is in the optimal clamping state, the adaptability is wide, secondary adjustment is not needed, and the operation efficiency is improved.
In addition, the fixing device with the absorbable rib embracing plate according to the above embodiment of the present invention may further have the following additional technical features:
according to an example of the present invention, the plate body has a circular arc shape in a cross section perpendicular to a length direction of the plate body; the mounting part is connected with the clamping groove.
According to one example of the invention, the bottom surface of the plate body is provided with a plurality of bulges which are uniformly arranged at intervals, and the gap between every two adjacent bulges is filled with a healing accelerating coating and/or a broken bone adhesion coating.
According to an example of the present invention, the action part includes a first knob, a first gear, a first rack, and a first elastic member;
the first knob is arranged on the body and can slide on the body in a reciprocating manner along a preset direction;
the first gear is arranged in the body and is connected with the first knob;
one part of the first rack is arranged in the body, and the other part of the first rack is positioned outside the body and is meshed with the first gear;
the first elastic piece is arranged in the body and is positioned between the first rack and the body;
the transmission assembly comprises a second rack, a third rack, a second gear and a second elastic piece which are arranged on the mounting part;
the second elastic piece is positioned below the second gear and is respectively connected with the second gear and the mounting part; the first rack and the second rack are respectively positioned at two opposite sides of the second gear;
the second gear comprises a first tooth part, a second tooth part and a third tooth part which are connected in sequence; the first tooth part is connected with the first rack, and the first tooth part is provided with a limiting part which can enable the first rack to press the second gear downwards; the second tooth part is connected with the mounting part;
one end of the second rack is connected with one side of the third tooth part, and the other end of the second rack is connected with the first transmission arm; one end of the third rack is connected with the other side of the third tooth part, and the other end of the third rack is connected with the second transmission arm;
the first rack presses down the second gear to enable the second tooth part to be disconnected with the installation part and drive the second gear to rotate, so that the first transmission arm and the second transmission arm can be driven to be close to or far away from by rotation of the second gear.
According to an example of the present invention, one end of the second rack away from the third tooth portion is provided with a first bent portion extending downward, and the first bent portion is connected to the first transmission arm;
one end of the third rack, which is far away from the third tooth part, is provided with a second bent part which extends downwards, and the second bent part is connected with the second transmission arm;
the plate body is provided with a first notch for the first bending part to move and a second notch for the second bending part to move.
According to one example of the invention, the mounting part is provided with a blind hole, and a first through hole and a second through hole are formed on two opposite sides of the lower part of the blind hole in an outward expanding mode;
the axial direction of the first through hole and the axial direction of the second through hole are both vertical to the axial direction of the blind hole, and the first through hole and the second through hole are respectively positioned at two sides of the blind hole and are communicated with the blind hole;
the second gear and the second elastic piece are arranged in the blind hole, the blind hole is provided with a fourth tooth part, and the second gear is meshed with the fourth tooth part;
the second elastic piece is arranged at the bottom of the blind hole;
the second rack is inserted in the first through hole, and the second rack is inserted in the second through hole.
According to one example of the invention, the body comprises a housing, a handle, a connecting cylinder, a first transmission structure and a clamping mechanism;
the handle is connected with the shell;
the connecting cylinder is connected with the shell and can rotate on the shell around the axis of the connecting cylinder; the connecting cylinder is provided with a guide hole, and the first knob is in sliding fit with the guide hole so as to drive the first gear and the first rack to slide along a preset direction
The clamping mechanism is connected with the connecting cylinder;
the first transmission structure is installed in the shell and is in transmission connection with the handle and the clamping mechanism respectively, so that the handle can drive the clamping mechanism to perform clamping action.
According to one example of the invention, the clamping mechanism comprises a second knob, a second transmission structure, a clamp rod, a rotary joint and a clamp head;
the second knob is inserted into the connecting cylinder and can rotate around the axis of the second knob on the connecting cylinder;
the second transmission structure is arranged in the connecting cylinder and is respectively in transmission connection with the second knob and the clamp rod, so that the second knob drives the clamp rod to rotate through the second transmission structure;
the clamp rod is installed on the connecting cylinder, and the rotary joint is connected with the clamp head and the clamp rod respectively.
Advantages of the above additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural view of a rib embracing plate according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic structural view of a fixing device with an absorbable rib embracing plate according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a fixing clamp according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an actuator assembly according to an embodiment of the present invention;
fig. 6 is a schematic view of a part of the internal structure of the housing according to the embodiment of the invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. fixing the pliers; 11. an action component; 111. a first knob; 112. a first gear; 113. a first rack; 114. a first elastic member; 12. a housing; 13. a handle; 14. a connecting cylinder; 15. a clamping mechanism; 151. a second knob; 152. a clamp lever; 153. a rotary joint; 154. a binding clip;
2. a plate body; 21. a first notch; 3. a fastening mechanism; 31. an installation part; 311. blind holes; 3111. a fourth tooth portion; 312. a first through hole; 313. a second through hole; 32. a transmission assembly; 321. a second rack; 3211. a first bent portion; 322. a third rack; 3221. a second bent portion; 323. a second gear; 3231. a first tooth portion; 3232. a second tooth portion; 3233. a third tooth portion; 324. a second elastic member; 33. a first transmission arm; 34. a second drive arm; 4. a clamping jaw.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 6, the present embodiment provides a fixing device with an absorbable rib surrounding plate, including a fixing clamp 1 and a rib surrounding plate, where the rib surrounding plate of the present embodiment is made of a biodegradable material, and is directly degraded and ablated in a human body after use, without removal, and thus causing little injury to a patient.
Based on the problems in the background art, the present embodiment improves the fixing clamp 1 and the rib embracing plate, and the rib embracing plate includes a
The fastening mechanism 3 of this embodiment is connected with
The first transmission arm 33 and the
It can be known from the above description that, the fixing device with the absorbable rib embracing plate of the present embodiment is different from the memory alloy clasping structure of the existing bone-knitting device, the fastening mechanism 3 is added, the fixing clamp 1 is structurally improved, and the medical speculum is used as an auxiliary, the fastening mechanism 3 arranged on the
In order to make the
As shown in fig. 5 and 6, the actuating member of the present embodiment includes a
As shown in fig. 1 and 2, in order to realize the cooperation with the actuating assembly 11 and the clamping of the rib, the
The second
Specifically, the
One end of the
When ribs need to be clasped, the
In order to facilitate the movement of the
Specifically, as shown in fig. 1 and 2, in order to ensure the stability of the overall structure, the mounting
The
The body of the present embodiment comprises a
In this embodiment, the
The first transmission structure of the embodiment is installed in the
In addition, in order to facilitate the installation of the
Specifically, the second transmission structure of the present embodiment may be a miniature worm and gear structure, or a rack and pinion transmission structure, and since the above structure has been shown in the accompanying drawings to provide a rack and pinion transmission structure, the present embodiment does not describe the rack and pinion transmission here, and those skilled in the art can refer to other drawings of the present application to obtain the present invention.
Based on the above structure, the present embodiment also selects the material of the fastening mechanism 3 and the
In order to facilitate the understanding of the fixing device with the absorbable rib embracing plate of the present embodiment by those skilled in the art, the following is a brief description of the operation process thereof:
first, the whole body formed by the fastening mechanism 3 and the
Then, the exposed end of the
Whole process needs to be assisted by visual devices such as medical lens and realizes, convenient operation, and pure mechanical structure realizes the fastening of rib and the fine setting of fastening force, need not to heat
In the description of the present invention, it is to be understood that the terms "inside", "outside", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
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