C-shaped pelvis fixing frame
The design of the detachable extension rod and adjustable fixation pin of the pelvic C-type fixator solves the problems of poor adaptability and complication risk of existing pelvic fracture fixation methods, and achieves the effects of flexible adjustment and reduced bleeding.
Patent Information
- Application Number
- CN202422628195.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Existing methods for fixing pelvic fractures cannot easily adjust the pressure between the instrument and the pelvis, have poor adaptability, and pose a risk of complications due to improper force applied to the iliac bone.
A C-shaped pelvic fixation frame was designed, which uses a detachable extension rod and an adjustable threaded sleeve for the fixation pin. The length can be adjusted by the detachable extension rod, and the width and position of the fixation pin can be adjusted by moving the C-shaped arm, thereby improving adaptability and avoiding complications caused by improper force when striking the iliac bone.
It achieves sensitive adjustment of the pelvic fixation frame, is highly adaptable, reduces pelvic volume, effectively reduces bleeding, is simple to operate, and lowers the risk of complications.
Smart Images
Figure CN223586023U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical auxiliary instrument technical field, specifically point to a kind of pelvic C type fixing frame. BACKGROUND
[0002] Pelvic fracture is caused by high-energy injury, complex and serious, more than half of the complications or multiple injuries, the most serious is traumatic hemorrhagic shock and pelvic organ combined injury, clinical processing is difficult, improper treatment has very high mortality, early reduction and stabilization of pelvic fracture is the key principle of treating massive hemorrhage.
[0003] Pelvic fracture displacement 3cm can make volume increase 2 times. Therefore, when pelvic fracture, external fixation can temporarily fix pelvis, reduce pelvic volume, effectively reduce the amount of bleeding.
[0004] Common surgical fixation fracture mode includes pelvic anterior ring fixation, pelvic posterior ring fixation and channel screw fixation. Pelvic anterior ring fixation mode mainly has external fixation support, steel plate screw fixation, percutaneous nail rod system fixation and simple screw fixation;Pelvic posterior fixation has transiliac bone plate fixation, iliac bone rod fixation, transiliac bone nail rod and adjustable bone plate;Channel screw fixation mainly spine pelvic nail rod system fixation, which is suitable for the case of pelvic and lumbar fixation together.
[0005] But the existing fracture fixation mode cannot conveniently adjust the pressure between instrument and pelvis, and the adjustability is poor.
[0006] Therefore, in view of the above-described technical problems, the applicant combines the existing fracture fixation mode and designs a new pelvic C type fixing frame. CONTENT OF UTILITY MODEL
[0007] The utility model wants to overcome the technical defects of the above-mentioned technology, provide a kind of pelvic C type fixing frame, the purpose is to increase adaptability by the detachable extension rod increased in the one end of fixed rod, facilitate the operation patient;Fixed needle threaded sleeve and fixed needle tail cap are detachable design, adjustment is more sensitive, avoid hammering iliac bone strength improper complication such as penetration iliac bone inner plate.
[0008] To solve the above technical problems, the technical scheme provided by the utility model is as follows: a kind of pelvic C type fixing frame, including fixed rod, C arm, fixed needle;
[0009] Two C arms are symmetrically provided on the fixed rod, the lower end of the C arm is connected with the fixed needle threaded sleeve, the fixed needle threaded sleeve is provided with the fixed needle, the fixed needle is symmetrically provided with two, and the front end of the opposite setting is provided with needle head, and the needle head of the two fixed needles is used to penetrate the skin and nail on the outer cortex of pelvis;
[0010] The fixed needle rear end is provided with a fixed needle tail cap, and the fixed needle tail cap is used for locking the fixed needle on the fixed needle threaded sleeve.
[0011] Further, the fixed rod is connected with an extension rod at one end along the length direction of the fixed rod, the fixed rod is provided with a groove at one end of the extension rod, a threaded hole one is arranged at the bottom of the groove, a through hole one is arranged in the extension rod along the length direction of the extension rod, a connecting pipe is arranged in the through hole one, one end of the connecting pipe is threadedly connected with the threaded hole one, and the other end of the connecting pipe is provided with a connecting pipe nut, the extension rod is inserted into the groove, and the other end of the extension rod is fixedly connected with the fixed rod through the connecting pipe and the connecting pipe nut.
[0012] Further, the C-shaped arm is provided with a through hole matched with the fixed rod at one end and a threaded hole two at the other end, the threaded hole two is provided with a fixed needle threaded sleeve matched with the threaded hole two, the outer circle of the fixed needle threaded sleeve is provided with an external thread, a through hole two is arranged in the fixed needle threaded sleeve along the length direction of the fixed needle threaded sleeve, a fixed needle is arranged in the through hole two, and the tail end of the fixed needle threaded sleeve is provided with a hexagonal column.
[0013] Further, the fixed needle is provided with a needle head at one end and a fixed needle tail cap at the other end after penetrating through the through hole two, a threaded hole three is arranged at the end of the fixed needle away from the needle head, a threaded rod matched with the threaded hole three is arranged on the fixed needle tail cap, and the fixed needle is fixedly connected with the fixed needle threaded sleeve through the fixed needle tail cap.
[0014] Compared with the prior art, the utility model has the advantages that the utility model discloses a detachable extension rod is designed at one end of the fixed rod, the length can be adjusted according to requirements, the adaptability is improved, and the patient is conveniently transferred, through the movable C-shaped arm, the adjustable fixed needle threaded sleeve and the detachable fixed needle arranged at the lower end of the C-shaped arm, the width of the C-shaped arm and the position of the fixed needle are more sensitive to adjust, and the occurrence of complications such as penetration of the iliac internal plate due to improper force on the iliac bone is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 It is a structure schematic view of a pelvis C type fixed frame.
[0016] Fig. 2 It is a structure schematic view of a fixed rod and an extension rod of a pelvis C type fixed frame.
[0017] Fig. 3 It is a structure schematic view of a fixed rod of a pelvis C type fixed frame.
[0018] Fig. 4It is the structure schematic view of the C-shaped arm of the pelvis C-shaped fixing frame.
[0019] Fig. 5 It is the structure schematic view of the fixed needle threaded sleeve of the pelvis C-shaped fixing frame.
[0020] Fig. 6 It is the structure schematic view of the fixed needle of the pelvis C-shaped fixing frame.
[0021] As shown in the figure: 1, fixed rod, 101, groove, 102, threaded hole one, 2, C-shaped arm, 201, through hole, 202, threaded hole two, 203, fixed locking screw, 3, fixed needle, 301, needle head, 302, threaded hole three, 4, fixed needle threaded sleeve, 401, external thread, 402, through hole two, 5, fixed needle tail cap, 501, threaded rod, 6, extension rod, 601, through hole one, 7, connecting pipe, 701, connecting pipe nut. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.
[0023] In the description of the embodiments of the utility model, it should be pointed out that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, structure and operation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.
[0024] In addition, if the terms "horizontal", "vertical", "overhanging" and the like appear, they do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0025] In the description of the embodiments of the utility model, "a plurality of" represents at least 2.
[0026] In the description of the embodiments of the utility model, still need explaining, unless another explicit provision and limitation, if appearing term " set ", " install ", " link ", " connect " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through intermediate medium, can be two elements inside the intercommunication. For ordinary skilled in the art, can understand the concrete meaning of the above-mentioned term in the utility model according to specific circumstances.
[0027] Embodiment 1:
[0028] Combine the attached Figs. 1-6 A pelvic C-shaped fixing frame, comprising a fixing rod 1, a C-shaped arm 2, a fixing needle 3;
[0029] Two C-shaped arms 2 are symmetrically arranged on the fixing rod 1, a fixing needle threaded sleeve 4 is connected to the lower end of the C-shaped arm 2, a fixing needle 3 is arranged in the fixing needle threaded sleeve 4, the fixing needle 3 is symmetrically arranged, a needle head 301 is arranged at the opposite end of the fixing needle 3, and the needle heads 301 of the two fixing needles 3 are used to pierce the skin and be nailed on the lateral cortex of the pelvis.
[0030] A fixing needle tail cap 5 is arranged at the rear end of the fixing needle 3, and the fixing needle tail cap 5 is used for locking the fixing needle 3 on the fixing needle threaded sleeve 4.
[0031] The preferred embodiment of the embodiment is that one end of the fixing rod 1 is connected with an extension rod 6 along the length direction of the fixing rod 1, one end of the fixing rod 1 provided with the extension rod 6 is provided with a groove 101, a threaded hole one 102 is arranged at the bottom of the groove 101, a through hole one 601 is arranged in the extension rod 6 along the length direction of the extension rod 6, a connecting pipe 7 is arranged in the through hole one 601, one end of the connecting pipe 7 is screwed with the threaded hole one 102, the other end of the connecting pipe 7 is provided with a connecting pipe nut 701, one end of the extension rod 6 is inserted into the groove 101, and the other end of the extension rod 6 is fixedly connected with the fixing rod 1 through the connecting pipe 7 and the connecting pipe nut 701.
[0032] When the extension rod is needed, one end of the extension rod is inserted into the groove, then the connecting pipe is lifted and passed through the through hole one and screwed into the threaded hole one, so that the connecting pipe is fixedly connected with the fixing rod, the other end of the connecting pipe is screwed into the connecting pipe nut, so that the extension rod and the fixing rod are fixedly connected into an integral whole.
[0033] The preferred embodiment of the present embodiment is that the C-shaped arm 2 is provided with a through hole 201 at one end which is in sliding fit with the fixed rod 1, the top end of the C-shaped arm 2 provided with the through hole 201 is provided with a fixed locking screw 203, the fixed locking screw 203 is two, the other end of the C-shaped arm 2 is provided with a threaded hole two 202, the threaded hole two 202 is provided with a fixed needle threaded sleeve 4 which is in threaded fit with the threaded hole two 202, the outer circle of the fixed needle threaded sleeve 4 is provided with an outer thread 401, and a through hole two 402 is provided in the length direction of the fixed needle threaded sleeve 4, the fixed needle 3 is arranged in the through hole two 402, and the tail end of the fixed needle threaded sleeve 4 is provided with a hexagonal column.
[0034] In specific implementation, the C-shaped arm is adjusted in position as required, and after being adjusted to a proper position, the fixed locking screw is used for locking and fixing. The fixed needle threaded sleeve provided at the other end of the C-shaped arm is adjusted in position by rotating, so that the fixed needle in the fixed needle threaded sleeve can be properly moved in position.
[0035] The preferred embodiment of the present embodiment is that the fixed needle 3 is provided with a needle head 301 at one end, and a fixed needle tail cap 5 is arranged after the fixed needle 3 passes through the through hole two 402, the end of the fixed needle 3 away from the needle head 301 is provided with a threaded hole three 302, the fixed needle tail cap 5 is provided with a threaded rod 501 which is in fit with the threaded hole three 302, and the fixed needle 3 is fixedly connected with the fixed needle threaded sleeve 4 through the fixed needle tail cap 5.
[0036] In specific implementation, the end of the fixed needle away from the needle head is inserted into the through hole two, and then the fixed needle tail cap is screwed from one end outside the through hole, the threaded rod on the fixed needle tail cap is screwed and tightened with the threaded hole three, so that the fixed needle is fixed on the fixed needle threaded sleeve.
[0037] In specific implementation of the present utility model, the fixed rod and the installation extension rod are connected through the connecting pipe, the two C-shaped arms are suspended on the fixed rod along the left and right relative vertical, the fixed needle and the fixed needle tail cap are connected together through the fixed needle threaded sleeve, the needle tips of the fixed needle threaded sleeve are respectively passed through the lower edges of the two C-shaped arms, and there is a sufficient width. The patient lies flat, the intersection point of the line connecting the anterior superior iliac spine and the posterior superior iliac spine with the vertical of the femur is marked, the left and right C-shaped arms are moved, the pelvic C-shaped fixing forceps are attached to the outside of the patient's pelvis, the fixed needle penetrates the skin through the intersection point, the fixed needle is nailed on the cortex outside the pelvis by hammering the left and right fixed needle tail caps, the fixed rod nut is tightened, the lower limbs are pulled to reset the fracture, the fixed needle threaded sleeve is rotated and pressed to the pelvis to achieve the effect of fixing the pelvis. When the patient needs to be moved, the fixed rod nut can be loosened, the length of the fixed rod is adjusted, the fixed rod nut is tightened after the installation extension rod is disassembled, and the fixed rod is placed above the patient's pelvis.
[0038] The above has described the utility model and its implementation mode, which is not restrictive, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.
Claims
1. A C-type pelvis fixture, characterized in that, Including fixed rod, C-shaped arm, fixed needle; Two C-shaped arms are symmetrically arranged on the fixed rod, and a fixed needle threaded sleeve is connected to the lower end of the C-shaped arm, a fixed needle is arranged in the fixed needle threaded sleeve, the fixed needle is symmetrically arranged, a needle head is arranged at the opposite end of the fixed needle, and the needle heads of the two fixed needles are used for penetrating the skin and being nailed on the lateral cortex of the pelvis; A fixed needle tail cap is arranged at the rear end of the fixed needle, and the fixed needle tail cap is used for locking the fixed needle on the fixed needle threaded sleeve.
2. A pelvis C-type fixing frame according to claim 1, characterized in that One end of the fixed rod is connected with an extension rod along the length direction of the fixed rod, one end of the fixed rod provided with the extension rod is provided with a groove, a threaded hole one is arranged at the bottom of the groove, a through hole one is arranged in the extension rod along the length direction of the extension rod, a connecting pipe is arranged in the through hole one, one end of the connecting pipe is threadedly connected with the threaded hole one, and the other end of the connecting pipe is provided with a connecting pipe nut, one end of the extension rod is inserted into the groove, and the other end of the extension rod is fixedly connected with the fixed rod through the connecting pipe and the connecting pipe nut.
3. The C-type pelvis according to claim 1, wherein One end of the C-shaped arm is provided with a through hole which is in sliding fit with the fixed rod, the other end is provided with a threaded hole two, the threaded hole two is provided with a fixed needle threaded sleeve which is in threaded fit with the threaded hole two, an outer thread is arranged on the outer circle of the fixed needle threaded sleeve, a through hole two is arranged in the length direction of the fixed needle threaded sleeve, a fixed needle is arranged in the through hole two, and a hexagonal column is arranged at the tail end of the fixed needle threaded sleeve.
4. A pelvis C-type fixing frame according to claim 3, characterized in that One end of the fixed needle is provided with a needle head, the other end is provided with a fixed needle tail cap after penetrating through the through hole two, a threaded hole three is arranged at the end of the fixed needle away from the needle head, a threaded rod which is in fit with the threaded hole three is arranged on the fixed needle tail cap, and the fixed needle is fixedly connected with the fixed needle threaded sleeve through the fixed needle tail cap.
5. A pelvis C-type fixation bracket according to claim 4, characterized in that The top end of the C-shaped arm is provided with a fixed locking screw, and the fixed locking screw is two.