阅读说明：本技术 一种具有可吸收式肋骨接骨板的固定设备 (Fixing equipment with absorbable rib bone fracture 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接骨板的固定设备,包括固定钳和肋骨接骨板；所述肋骨接骨板包括板体、两抱紧装置和调距组件；抱紧装置滑动安装在板体上；调距组件的相对两端分别与两抱紧装置连接；固定钳包括本体和安装在本体上的动作组件。本发明在板体上滑动设置了两抱紧装置,并且对固定钳进行结构上的改进,辅以医学窥镜等,通过固定钳操作置于板体上的抱紧装置来实现肋骨的加紧,能够将抱紧装置的两夹臂调整至最佳夹持位置；并且通过可以提前通过调距组件调整两个抱紧装置之间的距离,以适应不同的肋骨结构；整体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 bone fracture plate, which comprises fixing clamps and a rib bone fracture plate; the rib bone fracture plate comprises a plate body, two clasping devices and a distance adjusting component; the clasping device is slidably arranged on the plate body; the two opposite ends of the distance adjusting assembly are respectively connected with the two clasping devices; the fixed clamp comprises a body and an action assembly mounted on the body. The two holding devices are arranged on the plate body in a sliding mode, the structure of the fixing clamp is improved, a medical speculum is used for assisting, the rib is clamped by operating the holding devices arranged on the plate body through the fixing clamp, and the two clamping arms of the holding devices can be adjusted to the optimal clamping positions; the distance between the two clasping devices can be adjusted in advance through the distance adjusting assembly so as to adapt to different rib structures; the whole adaptability is wide, secondary adjustment is not needed, and the operation efficiency is improved.)

1. A fixing device with an absorbable rib bone fracture plate is characterized by comprising fixing clamps and the rib bone fracture plate made of biodegradable materials; the rib bone fracture plate comprises a plate body, two clasping devices and a distance adjusting component;

the two clasping devices are slidably arranged on the plate body; the two opposite ends of the distance adjusting assembly are respectively connected with the two clasping devices, and the length of the distance adjusting assembly can be changed between a first length and a second length so as to adjust the distance between the two clasping devices;

the fixed clamp comprises a body and an action assembly arranged on the body;

the clasping device comprises a sliding piece, a transmission assembly, a first clamping arm and a second clamping arm; the sliding piece is slidably mounted on the plate body, and the transmission assembly is mounted on the sliding piece; the first clamping arm and the second clamping arm are oppositely arranged and are respectively connected with the transmission assembly, and a plurality of clamping jaws are arranged on two opposite sides of the first clamping arm and two opposite sides of the second clamping arm; the transmission assembly is connected with the action assembly and drives the first clamping arm and the second clamping 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 fixation device with an absorbable rib bone plate of claim 1, wherein the distance adjustment assembly comprises a connector and a strap; the connecting piece is provided with a connecting hole, a clamping part which can deform along a preset direction is arranged in the connecting hole, and a deformation space for the clamping part to deform is arranged on the side wall of the connecting hole;

the band body is inserted into the connecting hole, a plurality of protrusions are arranged on the band body along the length direction of the band body, a guide surface is arranged on one side of each protrusion, and the guide surface can enable the clamping portion to deform towards the inside of a deformation space when the band body is inserted into the connecting hole; the other side of the bulge part is provided with a supporting surface which is clamped with the clamping part when the belt body is pulled out of the connecting hole.

3. The fixation device with an absorbable rib plate of claim 1, wherein the bottom of the plate body is provided with a friction surface.

4. The fixation device with an absorbable rib plate of any of claims 1-3, wherein the action member comprises 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 sliding piece;

the second elastic piece is positioned below the second gear and is respectively connected with the second gear and the sliding piece; 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 sliding 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 clamping 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 clamping arm;

the first rack presses down the second gear, so that the second tooth part is disconnected with the sliding part, and the second gear is driven to rotate, so that the first clamping arm and the second clamping arm can be driven to be close to or far away from each other by the rotation of the second gear.

5. The fixation device with the resorbable rib bone plate of claim 4, wherein the sliding member has a blind hole, and wherein the lower portion of the blind hole is flared on opposite sides 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.

6. The fixation device with an absorbable rib plate 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.

7. The fixation device with an absorbable rib bone plate of claim 6, wherein the clamping mechanism comprises a second knob, a second transmission structure, a forceps rod, a rotary joint and a forceps 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 bone fracture plate.

Background

The human rib has 12 pairs in total, is positioned at both sides of the chest, and is connected with the sternum in front of the rib and the thoracic vertebra in back to form a complete foot outline. Rib fracture is the most common one of thoracic fractures, fracture parts are mostly generated on 4 th to 7 th ribs, and at present, the common method for treating rib fracture is to implant a bone fracture plate to fixedly connect the fractured ribs.

The existing rib bone-knitting operation adopts a fixing clamp and a memory alloy fixing plate, wherein two sides of the memory alloy fixing plate are connected with a plurality of pairs of holding claws, and in the implantation process, the holding claws are required to be held tightly to ribs by temperature change, so that the operation is complex; moreover, the deformation stroke of the encircling arm with the structure is determined, the encircling arm cannot be matched with ribs of all patients, the encircling claw is required to be unfolded through structures such as a fixing clamp, the operation is very inconvenient, and the operation time is prolonged.

In addition, most of the bone fracture plate, the holding claws and other structures are integrated and made of metal materials, so that the bone fracture plate, the holding claws and other structures need to be taken out after the ribs are fixed well, and secondary damage is caused to a patient.

Disclosure of Invention

The invention aims to provide a fixing device with an absorbable rib bone fracture plate, which aims to solve the problems that the existing bone fracture device is poor in adaptability, needs to be adjusted through structures such as fixing clamps and the like, is low in operation efficiency, needs to take out the bone fracture plate and grasp the bone fracture plate again, and causes secondary injury to a patient.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

a fixing device with an absorbable rib bone fracture plate comprises a fixing clamp and the rib bone fracture plate made of biodegradable materials; the rib bone fracture plate comprises a plate body, two clasping devices and a distance adjusting component;

the two clasping devices are slidably arranged on the plate body; the two opposite ends of the distance adjusting assembly are respectively connected with the two clasping devices, and the length of the distance adjusting assembly can be changed between a first length and a second length so as to adjust the distance between the two clasping devices;

the fixed clamp comprises a body and an action assembly arranged on the body;

the clasping device comprises a sliding piece, a transmission assembly, a first clamping arm and a second clamping arm; the sliding piece is slidably mounted on the plate body, and the transmission assembly is mounted on the sliding piece; the first clamping arm and the second clamping arm are oppositely arranged and are respectively connected with the transmission assembly, and a plurality of clamping jaws are arranged on two opposite sides of the first clamping arm and two opposite sides of the second clamping arm; the transmission assembly is connected with the action assembly and drives the first clamping arm and the second clamping 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 equipment with the absorbable rib bone fracture plate, which is different from a memory alloy holding structure of the existing bone fracture device, two holding devices are arranged on a plate body in a sliding mode, the fixing clamp is structurally improved, a medical speculum is used for assisting, the holding device arranged on the plate body is operated by the fixing clamp to clamp ribs, and two clamping arms of the holding device can be adjusted to the optimal clamping position; the distance between the two clasping devices can be adjusted in advance through the distance adjusting assembly so as to adapt to different rib structures; the whole adaptability is wide, secondary adjustment is not needed, and the operation efficiency is improved.

In addition, the fixing device with the absorbable rib bone plate according to the above embodiment of the invention may also have the following additional technical features:

according to one example of the present invention, the roll adjustment assembly includes a connector and a band; the connecting piece is provided with a connecting hole, a clamping part which can deform along a preset direction is arranged in the connecting hole, and a deformation space for the clamping part to deform is arranged on the side wall of the connecting hole;

the band body is inserted into the connecting hole, a plurality of protrusions are arranged on the band body along the length direction of the band body, a guide surface is arranged on one side of each protrusion, and the guide surface can enable the clamping portion to deform towards the inside of a deformation space when the band body is inserted into the connecting hole; the other side of the bulge part is provided with a supporting surface which is clamped with the clamping part when the belt body is pulled out of the connecting hole.

According to one example of the invention, the bottom of the plate body is provided with a friction surface.

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 sliding piece;

the second elastic piece is positioned below the second gear and is respectively connected with the second gear and the sliding piece; 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 sliding 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 clamping 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 clamping arm;

the first rack presses down the second gear, so that the second tooth part is disconnected with the sliding part, and the second gear is driven to rotate, so that the first clamping arm and the second clamping arm can be driven to be close to or far away from each other by the rotation of the second gear.

According to one example of the invention, the sliding part is provided with a blind hole, and the lower part of the blind hole is outwards 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.

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 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 view of a fixation device with an absorbable rib plate 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; 3. a clasping device; 31. a slider; 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; 322. a third rack; 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 clamp arm; 34. a second clamp arm; 35. a clamping jaw;

4. a pitch assembly; 41. a connecting member; 411. connecting holes; 412. a clamping part; 413. a deformation space; 42. a belt body; 43. a boss portion; 431. a guide surface; 432. a propping surface.

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 bone plate, including a fixing clamp 1 and a rib bone plate, the rib bone plate of the present embodiment is made of biodegradable material, and is directly degraded and ablated in a human body after use, without removal, and thus, the patient is less injured.

Based on the problems in the background art, the present embodiment improves the fixing clamp 1 and the rib bone plate, and the rib bone plate includes a plate body 2 and two clasping devices 3 installed on the plate body 2; based on the rib bone plate structure, the fixing device of the embodiment also improves the structure of the fixing clamp 1, and the action component 11 is added on the body of the original fixing clamp 1, so that the fixing clamp 1 can be matched with the clasping device 3 besides the clamping function, and the first clamping arm 33 and the second clamping arm 34 of the clasping device 3 can be actuated through the action of the fixing clamp 1.

Furthermore, the clasping device 3 of the present embodiment is in sliding fit with the plate body 2, and a sliding rail or a sliding chute and other structures can be arranged on the plate body to realize the sliding fit between the two clasping devices 3, so that the distance between the two clamping jaws can be adjusted by the sliding fit of the two clasping devices 3 to adapt to different patient ribs; the clasping device 3 of the present embodiment comprises a slide 31, and a transmission assembly 32, a first clamping arm 33 and a second clamping arm 34 which are mounted on the slide 31, and the slide 31 of the present embodiment may be a strip plate structure with a certain length.

Preferably, in order to realize the distance adjustment of the two clasping devices 3, the clasping device of the embodiment further comprises a distance adjusting component, wherein two opposite ends of the distance adjusting component are respectively connected with the two clasping devices, and the length of the distance adjusting component can be changed between a first length and a second length so as to adjust the distance between the two clasping devices.

The first clamping arm 33 and the second clamping arm 34 of the present embodiment are oppositely disposed and respectively connected to the transmission assembly 32; the first clamping arm 33 and the second clamping arm 34 are both provided with a plurality of clamping jaws 35, so that an improvement on adaptability of the plate body 2 is needed, the plate body 2 is provided with a plurality of structures such as slots or holes for the reciprocating motion of the clamping jaws 35, and the structures of the first clamping arm 33 and the second clamping arm 34 of the embodiment are shown in the attached drawings, so that the structures of the slots or the holes and the like on the plate body 2 are easy to think of the structural forms, and the embodiment does not describe the structures in the attached drawings.

The transmission assembly 32 of the present embodiment is connected to the action assembly 11, and drives the first clamping arm 33 and the second clamping arm 34 to move closer to or away from each other under the driving of the action assembly 11, so as to implement the clasping of the clamping jaws 35 on both sides, and the specific connection manner and action manner are given below.

As can be seen from the above description, the fixing device with the absorbable rib bone fracture plate of the present embodiment is different from the memory alloy clasping structure of the existing bone fracture device, two clasping devices 3 are added, the fixing forceps 1 is structurally improved, and a medical endoscope is used as an aid, the clasping devices 3 arranged on the plate body 2 are operated by the fixing forceps 1 to clasp the ribs, so that the two clamping arms of the clasping devices 3 can be adjusted to the optimal clamping position, and the distance between the two clasping devices 3 can be adjusted in advance by the distance adjusting assembly 4 to adapt to different rib structures; the whole adaptability is wide, secondary adjustment is not needed, and the operation efficiency is improved.

In order to make the plate body 2 fit with the rib, the plate body 2 of the present embodiment is arc-shaped on the cross section perpendicular to the length direction thereof, and in order to make the binding property between the plate body 2 and the rib better, the bottom surface of the plate body 2 is further provided with a friction surface (not shown) to increase the friction force between the plate body 2 and the rib.

Referring to fig. 1 and 2, the distance adjusting assembly 4 of the present embodiment includes a connecting member 41 and a belt body 42, one end of the belt body 42 is connected to one of the clasping devices 3, and the other end is connected to the connecting member 41; similarly, one end of the connecting piece 41 is connected with the belt body 42, and the other end is connected with the other holding device 3; the connecting member 41 is provided with a connecting hole 411, a clamping portion 412 capable of deforming along a preset direction is arranged in the connecting hole 411, and a deformation space 413 for deforming the clamping portion 412 is arranged on the side wall of the connecting hole 411;

specifically, the belt body 42 of the present embodiment is inserted into the connection hole 411, the belt body 42 is provided with a plurality of protrusions 43 along the length direction thereof, the cross section of each protrusion 43 is similar to a right triangle, one side of each protrusion 43 is provided with a guide surface 431 (which can be understood as the hypotenuse of the right triangle), and the guide surface 431 can make the clamping portion 412 deform into the deformation space 413 when the belt body 42 is inserted into the connection hole 411; the other side of the protrusion 43 is provided with a holding surface 432 (which can be understood as a right-angle side of a right triangle), and the holding surface 432 is engaged with the engaging portion 412 when the belt 42 is pulled out of the connecting hole 411.

As shown in fig. 5 and 6, the actuating member of the present embodiment includes a first knob 111, a first gear 112, a first rack 113, and a first elastic member 114; wherein, the first knob 111 of the embodiment is installed on the body and can slide on the body back and forth along a preset direction; the first gear 112 of the present embodiment is installed in the body and connected with the first knob 111 to realize the synchronous rotation of the first knob 111 and the first gear 112; the first rack 113 of this embodiment is partially installed in the body, and the other part is located outside the body and engaged with the first gear 112; the first elastic member 114 of this embodiment is installed in the body and located between the first rack 113 and the body, and drives the first gear 112 and the first rack 113 to descend by pressing down the first knob 111, so as to drive the subsequent second gear 323 to descend, and after the second gear 323 finishes acting, the first elastic member 114 is used for the first rack 113, the first gear 112 and the first knob 111 to recover to the initial state. The specific actions performed by the second gear 323 described herein will be described below.

Referring to fig. 1 and 2 again, in order to realize the cooperation with the above-mentioned actuating assembly 11 and the clamping of the rib, the transmission assembly 32 of the present embodiment specifically includes a second rack 321, a third rack 322, a second gear 323, a second elastic member 324, and the like, which are mounted on the sliding member 31.

The second elastic member 324 of the present embodiment is located below the second gear 323 and is respectively connected to the second gear 323 and the sliding member 31, so that when the first rack 113 presses the second gear 323, the second gear 323 can return to the initial position through the second elastic member 324; in the length direction of the plate body 2 or the sliding member 31, the first rack 113 and the second rack 321 are respectively located on two opposite sides of the second gear 323, that is, the length direction of the first rack 113 and the second rack 321 is perpendicular to the length direction of the sliding member 31 and the plate body 2.

Specifically, the second gear 323 of the present embodiment includes a first tooth portion 3231, a second tooth portion 3232, and a third tooth portion 3233 connected in sequence; the first tooth portion 3231 is connected to the first rack 113, and the first tooth portion 3231 is provided with a limiting portion that enables the first rack 113 to press down the second gear 323, that is, the limiting portion is located below the first rack 113; the second tooth portion 3232 is connected to the slider 31.

In this embodiment, one end of the second rack 321 is connected to one side of the third tooth portion 3233, and the other end is connected to the first clamping arm 33; in this embodiment, one end of the third rack 322 is connected to the other side of the third tooth portion 3233, and the other end is connected to the second clamping arm 34.

When the ribs need to be held tightly, the first rack 113 is slid to press down the second gear 323, so that the second tooth portion 3232 is disengaged from the sliding part 31, and the second gear 323 is driven to rotate, and since the second rack 321 and the third rack 322 are respectively located at two opposite sides of the second gear 323 and are engaged with the second gear 323, the second gear 323 can be driven to rotate to drive the second rack 321 and the third rack 322 to move on the sliding part 31, and further drive the first clamping arm 33 and the second clamping arm 34 to approach or depart from each other.

Specifically, as shown in fig. 1 and 2, in order to ensure the stability of the overall structure, the sliding member 31 of the present embodiment is provided with a blind hole 311, and a first through hole 312 and a second through hole 313 are formed on two opposite sides of the lower portion of the blind hole 311; in the embodiment, the axial direction of the first through hole 312 and the axial direction of the second through hole 313 are both perpendicular to the axial direction of the blind hole 311, and the first through hole 312 and the second through hole 313 are both communicated with the blind hole 311. The second rack 321 of the present embodiment is inserted into the first through hole 312, and the second rack 321 is inserted into the second through hole 313.

The second gear 323 and the second elastic member 324 of the present embodiment are installed in the blind hole 311, and a fourth tooth portion 3111 is provided on a sidewall of the blind hole 311, that is, the second tooth portion 3232 of the second gear 323 meshes with the fourth tooth portion 3111 of the slider 31; the second elastic member 324 of this embodiment is installed at the bottom of the blind hole 311, so that the second gear 323 can be conveniently restored to the initial position after being pressed down, the second tooth portion 3232 is kept engaged with the fourth tooth portion 3111, the second rack 321 and the third rack 322 are locked, the first clamping arm 33 and the second clamping arm 34 are locked, and the positions of the two opposite clamping jaws 35 are fixed.

The body of the present embodiment comprises a housing 12, a handle 13, a connecting cylinder 14, a first transmission structure (not shown in the figure) and a clamping mechanism 15; wherein, the handle 13 is connected with the shell 12; the connecting cylinder 14 of the present embodiment is connected to the housing 12 and communicates with the inside of the housing, and the connecting cylinder 14 is rotatable on the housing 12 about its axis.

In this embodiment, the first knob 111 is also installed on the connecting cylinder 14, in order to realize that the first knob 111 can slide on the body in a reciprocating manner, a guide hole is formed in the connecting cylinder 14 in this embodiment, and the first knob 111 is in sliding fit with the guide hole, so that the knob drives the first gear 112 and the first rack 113 to slide along a preset direction.

The first transmission structure of the embodiment is installed in the housing 12 and the connecting cylinder 14, and is in transmission connection with the handle 13 and the clamping mechanism 15, respectively, so that the handle 13 can drive the clamping mechanism 15 to perform a clamping action. The first transmission structure may be any structure capable of transmitting the motion of the handle 13 to the clamping mechanism 15 for clamping in the prior art, such as a pull rope or a pull rod, which are commonly used in the prior art, and the embodiment does not describe the first transmission structure because the conventional technical means can be known by those skilled in the art.

In addition, in order to facilitate the installation of the plate body 2, the present embodiment further modifies the clamping mechanism 15, and as shown in fig. 3 and 4, the clamping mechanism 15 of the present embodiment includes a second knob 151, a second transmission structure, a clamping rod 152, a rotary joint 153, and a clamping head 154; wherein the binding clip 154 is connected with the first transmission structure, the second knob 151 is inserted on the connecting cylinder 14 and can rotate around the axis of the connecting cylinder 14; the second transmission structure is installed in the connecting cylinder 14 and is respectively in transmission connection with the second knob 151 and the forceps rod 152, so that the second knob 151 drives the forceps rod 152 to rotate through the second transmission structure; the clamp lever 152 is mounted on the connecting cylinder 14, and the rotary joint 153 is connected to the clamp head 154 and the clamp lever 152, respectively. The clamping mechanism 15 can rotate freely and perform a small-range bending action, so that the plate body 2 is convenient to mount, and the operation efficiency is improved.

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 clasping device 3 and the plate body 2 as biodegradable material, such as the existing biodegradable ceramics and biodegradable plastics, and for the second elastic member 324 with certain elasticity, the biodegradable high elastic fiber material can be selected. In addition, since the usage scenario of the clasping device 3 of the present application is rib surgery, the clasping device 3 is generally processed by micromachining technology.

In order to facilitate the understanding of the fixing device with the absorbable rib bone plate of the present embodiment by those skilled in the art, the following is a brief description of the operation process thereof:

firstly, the distance between the two clasping devices is adjusted through the distance adjusting assembly 4, and then the plate body 2 is clamped and adjusted through the clamping mechanism 15 of the fixing clamp 1, so that the plate body 2 can cover the fracture part of the rib.

Then, one of the clasping devices 3 is operated by using the fixing clamp 1, so that the clasping device 3 clasps the rib, specifically, the exposed end of the first rack 113 is connected with the first toothed portion 3231 of one of the clasping devices 3, and the first rack 113 is matched with the limiting portion, the first knob 111 is slid, the second gear 323 is pressed down by the limiting portion, so that the second toothed portion 3232 of the second gear 323 is disengaged from the fourth toothed portion 3111 of the sliding member 31, and the first knob 111 is rotated to drive the second gear 323 to rotate, so that the second rack 321 and the third rack 322 are moved, and the first clamping arm 33 and the second clamping arm 34 are driven to approach or separate from each other, so as to finish accurate clamping and clamping of the rib.

Then the clamping of the fixed clamp 1 is released, the first rack 113 is adjusted to be connected with the other clamping device 3, the plate body 2 is clamped by the fixed clamp 1, the other clamping device 3 is operated, and the steps are repeated.

In the operation process, the fastening force of the clamping jaw 35 to the ribs can be adjusted conveniently through the transmission structures such as the first knob 111, the first rack 113 and the second gear 323, fine adjustment can be realized on the fastening force, and the fine adjustment stage number is determined through the tooth numbers of the first gear 112, the second gear 323, the second rack 321 and the third rack 322.

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 plate body 2 etc. is greater than current memory alloy fixed plate structure far away to patient's suitability.

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.