A rib reduction fixator

Abstract

The present invention discloses a rib reduction and fixation device, comprising a first clamp rod and a second clamp rod, wherein the middle parts of the first clamp rod and the second clamp rod are rotatably hinged together through a connecting piece, the front ends of the first clamp rod and the second clamp rod have jaw bosses, and the ends thereof have clamp handles, and the fixation device also includes two elastic clamp handles, wherein one elastic clamp handle is clamped on the first clamp rod, and the other elastic clamp handle is clamped on the second clamp rod. The present invention can achieve the distraction of dislocated ribs with a surgical incision of only 4-6 cm, and can conveniently, quickly and accurately reposition the dislocated ribs. In addition, the present invention has multiple functions, and two sets of elastic clamp handles are provided, which have the function of longitudinally clamping the ribs, and at the same time ensure that sufficient bite force is provided for the jaws during the closing process of the dislocated ribs. The first clamp rod and the second clamp rod are provided with the function of transversely distracting the dislocated ribs.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, is applied to "minimally invasive rib fracture reduction and internal fixation", and specifically relates to a rib reduction and fixation device. Background Art

[0002] Rib fractures are extremely common in trauma. Whether it is simple chest trauma or complex injury, most are accompanied by rib fractures. According to WTA statistics, the mortality rate due to rib fractures and associated injuries is as high as 10%-20%. The inability to reposition and fix rib fractures in time is an extremely important factor causing pain in patients with rib fractures. Many elderly patients may suffer from secondary pneumonia, atelectasis, and respiratory failure due to the pain caused by rib fractures. In severe cases, mechanical ventilation or even tracheotomy is required to save them.

[0003] The traditional "open reduction and internal fixation of rib fractures" requires a large surgical incision, usually 20-30cm; multiple incisions, multiple rib fractures often require 2 or more incisions; a lot of muscle is cut, mostly due to longitudinal incisions; the postoperative recovery time is long, usually the hospitalization time is more than 2 weeks; the postoperative pain and numbness are obvious and last for a long time, affecting the patient's postoperative quality of life. Therefore, the traditional "open reduction and internal fixation of rib fractures" is only suitable for patients with severe flail chest, respiratory failure caused by rib fractures alone, and pain that cannot be controlled by non-surgical reduction. In addition, traditional surgical instruments are used during the operation, that is, traditional surgical instruments are difficult to fix, inconvenient to operate, time-consuming and labor-intensive, prolong the operation time, and increase the amount of intraoperative bleeding. Summary of the invention

[0004] The present invention solves the deficiencies of the prior art and provides a more convenient and stable rib reduction and fixation device.

[0005] The technical solution adopted by the present invention is: a rib reduction fixer, including a first clamp rod and a second clamp rod, the middle parts of the first clamp rod and the second clamp rod are rotatably hinged together through a connecting piece, the front ends of the first clamp rod and the second clamp rod have jaw bosses, and the ends thereof have clamp handles, and the fixer also includes two elastic clamp handles, one of which is clamped on the first clamp rod, and the other is clamped on the second clamp rod.

[0006] Preferably, the elastic pliers handle includes a first elastic pliers handle, a first clamping portion, a second elastic pliers handle and a second clamping portion, wherein the end of the first elastic pliers handle is arranged on one side of the first clamping portion, the head end of the second elastic pliers handle is arranged on the other side opposite to the first clamping portion, the head end of the second clamping portion is connected to the end of the second elastic pliers handle, wherein the first clamping portion is hingedly and rotatably connected to the first pliers rod and the second pliers rod near the jaw boss, and the second clamping portion is movably clamped to the first pliers rod and the second pliers rod near the pliers handle.

[0007] Preferably, the first clamping portion is a diamond-shaped structure, and the second clamping portion is a U-shaped structure.

[0008] Preferably, a first threaded through hole is formed on the first clamping portion, and a second threaded through hole corresponding to the first threaded through hole is formed on the first clamp rod and the second clamp rod.

[0009] Preferably, a jaw is formed between the first elastic jaw handle and the jaw boss.

[0010] Preferably, the middle part of the first clamp rod and the second clamp rod is a V-shaped structure, one end of one V-shaped structure has a triangular slot, and the other end of the V-shaped structure has a triangular protrusion that is engaged in the triangular slot, a third threaded through hole is formed on the triangular slot, and a fourth threaded through hole corresponding to the third threaded through hole is formed on the triangular protrusion.

[0011] Preferably, a clamping piece is provided on the inner side of the clamp handle of the first clamp rod, and at least two V-shaped protrusions are obliquely provided on the bottom of the outer end of the clamping piece.

[0012] More preferably, a slot member is provided on the inner side of the clamp handle of the second clamp rod, and V-shaped grooves are evenly distributed and inclined on the upper surface of the slot member.

[0013] Further preferably, the V-shaped protrusion is snap-fitted into any adjacent V-shaped groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The surgical incision is only 4-6cm to achieve the distraction of the dislocated ribs, and the dislocated ribs can be repositioned conveniently, quickly and accurately.

[0016] 2. It has multiple functions. Two sets of elastic clamp handles are set to have the function of longitudinally clamping the ribs and at the same time ensure that the jaws provide sufficient bite force during the closing process of the dislocated ribs. The first clamp rod and the second clamp rod are set to have the function of horizontally pulling apart the dislocated ribs.

[0017] 3. A jaw is formed between the first elastic clamp handle and the jaw boss. The first elastic clamp handle ensures that the rib does not slip during the retraction process, and the jaw boss ensures that the rib stump is clamped during the retraction process.

[0018] 4. A connecting piece is provided to ensure that the jaws are closed when the elastic pliers handle is closed, and a triangular slot and a triangular protrusion are provided to further ensure that the jaws are closed when the elastic pliers handle is closed.

[0019] 5. A clamping piece and a clamping groove are provided, and the clamping distance between the clamping piece and the clamping groove can be adjusted arbitrarily, that is, the reset of the dislocated ribs at any distance is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0021] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0022] Figure 3 It is a schematic diagram of the structure of the present invention in use state;

[0023] Figure 4 yes Figure 3 A magnified image; DETAILED DESCRIPTION

[0024] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] A rib reduction fixator, see Figure 1 , Figure 2 as well as Figure 3 , including a first clamp rod 1 and a second clamp rod 2, the middle parts of the first clamp rod 1 and the second clamp rod 2 are rotatably hinged together by a connecting member 3, the front ends of the first clamp rod 1 and the second clamp rod 2 have jaw bosses 4, and the ends thereof have clamp handles 5, and the connecting member 3 is preferably connected by a pin and a threaded through hole. In order to facilitate the clamping of the dislocated ribs in the longitudinal direction, two elastic clamp handles 6 are added to this embodiment 1, one of which is clamped on the first clamp rod 1, and the other is clamped on the second clamp rod 2. The connecting member 3 ensures that the jaws 8 are closed when the elastic clamp handles 6 are closed. The elastic clamp handles 6 ensure that sufficient bite force is provided for the jaws 8 during the closing process of the dislocated ribs, and at the same time, the elastic clamp handles 6 can be loosened by pushing them inward after the fixing operation is completed. The elastic clamp handles 6 are made accordingly according to the different sizes of the fractured rib distraction.

[0027] Example 2

[0028] Please refer to 2. The specific structure of the elastic clamp handle 6 is as follows: it includes a first elastic clamp handle 61, a first clamping portion 62, a second elastic clamp handle 63 and a second clamping portion 64. The first elastic clamp handle 61 is preferably a diamond-shaped structure, and the second clamping portion 64 is preferably a U-shaped structure. The end of the first elastic clamp handle 61 is arranged on one side of the first clamping portion 62, and the head end of the second elastic clamp handle 63 is arranged on the other side opposite to the first clamping portion 62. The head end of the second clamping portion 64 is connected to the end of the second elastic clamp handle 63, wherein the first clamping portion 62 is hingedly connected to the first clamp rod 1 and the second clamp rod 2 near the inner side of the jaw boss 4. The specific hinged connection method is as follows: a first threaded through hole is provided on the first clamping portion 12, and a second threaded through hole corresponding to the first threaded through hole is provided on the first clamp rod and the second clamp rod. Since the first threaded through hole and the second threaded through hole are conventional designs, Figure 2 The first threaded through hole and the second threaded through hole are not marked, and a pin is preferably used to pass through the first threaded through hole and the second threaded through hole to cooperate and connect the first clamping part 62 and the first clamp rod 1 and the second clamp rod 2 near the inner side of the jaw boss 4 to achieve hinged rotation connection. The second clamping part 64 is movably clamped to the first clamp rod 1 and the second clamp rod 2 near the clamp handle 5. Specifically, the bottom of the U-shaped opening of the second clamping part 64 is connected to the end of the second elastic clamp handle 63, that is, the U-shaped opening of the second clamping part 64 is set toward the inner side of the first clamp rod 1 and the second clamp rod 2, so that the second clamping part 64 can be movably clamped on the first clamp rod 1 and the second clamp rod 2.

[0029] Example 3

[0030] See also Figure 3 A jaw 8 is formed between the first elastic jaw handle 61 and the jaw boss 4, that is, one side of the jaw 8 is the first elastic jaw handle 61. The first elastic jaw handle 61 ensures that the fractured rib does not slip during the distraction process, and the jaw boss 4 ensures that the fractured rib clamps the rib end during the distraction process.

[0031] Example 4

[0032] See also Figure 2 as well as Figure 3 This embodiment is a specific connection structure of the first clamp rod 1 and the second clamp rod 2: the middle part of the first clamp rod 1 and the second clamp rod 2 is a V-shaped structure 7, one end of one V-shaped structure 7 has a triangular slot 71, and the other end of the V-shaped structure 7 has a triangular protrusion 72 that is engaged in the triangular slot 71. The triangular slot 71 is provided with a third threaded through hole, and the triangular protrusion 72 is provided with a fourth threaded through hole corresponding to the third threaded through hole. The third threaded through hole and the fourth threaded through hole are conventional designs, so in Figure 2 as well as Figure 3 The third threaded through hole and the fourth threaded through hole are not marked. A pin is preferably used to pass through the third threaded through hole and to cooperate with the fourth threaded through hole to realize the rotational connection between the first clamp rod 1 and the second clamp rod 2. The triangular slot 71 and the triangular protrusion 72 further ensure that the jaws 8 are closed when the elastic clamp handle 6 is closed.

[0033] Example 5

[0034] See also Figure 3 , Figure 4The inner side of the clamp handle 5 of the first clamp rod 1 is provided with a clamping piece 51, and at least two V-shaped protrusions 511 are obliquely provided at the bottom of the outer end of the clamping piece 51. The inner side of the clamp handle 5 of the second clamp rod 2 is provided with a clamping groove piece 52, and the upper surface of the clamping groove piece 52 is evenly and obliquely provided with V-shaped grooves 521. The V-shaped protrusions 511 are clamped into any adjacent V-shaped grooves 521 to meet various fracture rib distraction dimensions. In this embodiment 5, there are preferably two V-shaped protrusions 511, and the two V-shaped protrusions 511 can be clamped into two adjacent V-shaped grooves 421 according to the distraction distance of the dislocated ribs.

[0035] Example 6

[0036] Please refer to the present invention usage status Figure 3 In rib fracture surgery, the surgical incision is 4-6 cm. After the surgical incision, the rib is repositioned and fixed with a Figure 1 In the state shown, the pliers are inserted into the incision, and then the second clamping parts 64 of the two elastic pliers 6 are manually opened. After the jaws 8 are aligned with the rib stump, the second clamping parts 64 of the two elastic pliers 6 are manually clamped on the first pliers rod 1 and the second pliers rod 2, that is, the jaws 8 clamp the rib stump, and then the pliers 5 are manually clamped to the V-shaped protrusion 511 of the clamping part 51 in the V-shaped groove 521 of the clamping groove part 52 according to the distance of the fractured rib, so that the dislocated rib can be reset. After the reset, the second clamping parts 64 of the two elastic pliers 6 are manually opened again, and after the jaws 8 are separated from the fractured rib stump, the second clamping parts 64 of the two elastic pliers 6 are manually clamped on the first pliers rod 1 and the second pliers rod 2 again, and then the rib reset fixer can be taken out of the incision.

[0037] Existing medical devices or manual reduction cannot meet the needs of thoracoscopy observation during operation, and the ribs are easily displaced again during the placement of the rib embracer after reduction. The present invention perfectly solves the problem of visual field obstruction and reduction stability, shortening the operation time and reducing bleeding during the operation.

[0038] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A rib reduction and fixation device, comprising a first clamp rod (1) and a second clamp rod (2), wherein the first clamp rod (1) and the second clamp rod (2) are rotatably hinged together at their middle parts through a connecting piece (3), the first clamp rod (1) and the second clamp rod (2) have a jaw boss (4) at their front ends, and a clamp handle (5) at their ends, characterized in that: The fixer also includes two elastic clamp handles (6), one of which is clamped on the first clamp rod (1), and the other is clamped on the second clamp rod (2). The elastic clamp handle (6) comprises a first elastic clamp handle (61), a first clamping portion (62), a second elastic clamp handle (63) and a second clamping portion (64), wherein the end of the first elastic clamp handle (61) is arranged on one side of the first clamping portion (62), the head end of the second elastic clamp handle (63) is arranged on the other side opposite to the first clamping portion (62), and the head end of the second clamping portion (64) is connected to the end of the second elastic clamp handle (63), wherein the first clamping portion (62) is hingedly rotatably connected to the first clamp rod (1) and the second clamp rod (2) near the jaw boss (4), and the second clamping portion (64) is movably clamped to the first clamp rod (1) and the second clamp rod (2) near the clamp handle (5); The first clamping portion (62) is a diamond-shaped structure, and the second clamping portion (64) is a U-shaped structure; A jaw (8) is formed between the first elastic jaw handle (61) and the jaw boss (4).

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