First-aid fixator for pelvis and hip joint trauma

Abstract

The invention discloses a pelvis and hip joint trauma first-aid fixator, which relates to the field of medical instruments, specifically comprises two pelvis supporting plates, a hip bone outer fixing rod, a hip bone inner fixing rod and an expansion air bag, and is characterized in that an upper butt-joint block and a lower butt-joint block are respectively fixed at the upper end and the lower end of each pelvis supporting plate; the two lower butt joint blocks are installed through cooperation of fixing bolts and hinges, and sleeve blocks and fixing strips are fixed to the upper ends of the two upper butt joint blocks correspondingly. Velcro hook faces used for being attached to Velcro loop faces are fixedly installed on the inner sides of the two pelvis supporting plates, an expansion air bag is fixedly installed on one side of each Velcro loop face, and a plurality of ventilation holes used for ventilation of the skin of a patient are formed in the middle of each expansion air bag and the middle of each pelvis supporting plate. The pressure sensor is used for detecting the pressure between the expansion air bag and the skin of the patient, and therefore the situation that after pressurization and fixation are conducted through the expansion air bag, the pressure is too large, and consequently the patient pains or secondary injuries are caused is prevented.

Description

Technical Field

[0001] The invention relates to a field, in particular to an emergency fixer for pelvic and hip joint trauma. Background Art

[0002] The pelvis and hip joints can be damaged when impacted by external forces, usually in motor vehicle injuries, especially traffic injuries caused by vehicle collisions and crushing of pedestrians, mine car injuries in tunnel operations, and those whose pelvic area is subjected to high-energy external forces. Pelvic and hip joint trauma is a common clinical disease and is difficult to treat. When the pelvis and hip joints are traumatized, it is generally necessary to use an emergency fixator to fix the injured part of the patient with a certain degree of force.

[0003] When using the existing emergency fixator for pelvic and hip trauma, it is usually necessary to fix the patient's waist in time. However, since the patient has basically lost the ability to move, it is easy to use excessive force during the fixation process to cause secondary injury to the patient. In addition, an airbag is generally installed inside the instrument to support the patient. However, due to the good sealing of the airbag, the patient's injured part is not airtight and easily causes infection symptoms. In addition, the gas filling process is prone to uneven pressure, and the injured part is easily squeezed, causing the wound to worsen. Summary of the invention

[0004] The purpose of the present invention is to provide an emergency fixator for pelvic and hip joint trauma to solve the problem that the original emergency fixator for pelvic and hip joint trauma proposed in the above background technology usually needs to fix the patient's waist in time when in use, but because the patient has basically lost the ability to move, it is easy to use excessive force during the fixation process to cause secondary injury to the patient, and an airbag is generally installed inside the instrument to support the patient, but the airbag has good sealing properties, which makes the patient's injured part airtight and easy to cause infection symptoms, and the gas filling process is prone to uneven pressure, and the injured part is easily squeezed, causing the wound to worsen.

[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0006] The present invention provides a pelvic and hip joint trauma emergency fixer, comprising two pelvic support plates, a hip external fixation rod, a hip internal fixation rod and an inflatable airbag, wherein the upper and lower ends of the two pelvic support plates are respectively fixed with an upper docking block and a lower docking block, the two lower docking blocks are installed by means of a fixing bolt and a hinge, and the upper ends of the two upper docking blocks are respectively fixed with a sleeve block and a fixing strip:

[0007] The inner sides of the two pelvic support plates are fixedly installed with Velcro hooks for fitting with Velcro fleece surfaces, and an inflatable airbag is fixedly installed on one side of the Velcro fleece surface. The inflatable airbag and the middle of the pelvic support plate are provided with a plurality of ventilation holes for the patient's skin to ventilate;

[0008] The upper ends of the two lower docking blocks are fixedly mounted with a clamping strip for clamping the T-shaped clamping block, and the upper ends of the T-shaped clamping blocks are integrally formed with a support sheet, and the front ends of the support sheets are evenly spaced with hip internal fixation rods;

[0009] The front ends of the two pelvic support plates are each provided with a reserved hole for inserting a plurality of hip bone external fixation rods.

[0010] Preferably, an exhaust pipe and an air injection pipe are respectively provided inside one of the vent holes (11) opened on the expansion airbag, the end of the exhaust pipe is connected to an exhaust valve via a telescopic tube, and the upper end of the air injection pipe is connected to a three-way pipe, the end of the three-way pipe passes through the shell through a pipeline and is connected to the air injection end of the micro air injection pump.

[0011] Preferably, the air outlet of the micro air injection pump passes through a pipeline to the side end of the shell and is located inside the filter screen tube, and the filter screen tube is threadedly connected to the side end of the shell, and through holes for air circulation are evenly spaced on the wall of the filter screen tube.

[0012] Preferably, the interior of the shell is provided with placement cavities for the processing chip module, the battery seat and the micro gas injection pump in sequence. The processing chip module is connected to the control panel circuit at the upper end of the shell through a wire, one side of the processing chip module is connected to the battery seat circuit through a wire, a backup battery is provided inside the battery seat, and the control panel is also connected to the micro gas injection pump circuit through a wire.

[0013] Preferably, a cavity for placing a pressure sensor is reserved inside the wall of one of the inflatable airbags at the contact surface with the patient's skin, and the pressure sensor is connected to the control panel circuit via a telescopic wire.

[0014] Preferably, a groove is penetrated through the middle of the sleeve block for the fixing strip to pass through, a serrated contact plate is fixed at the lower end of the inner part of the groove, and the serrated contact plate and the serrated protrusion at the lower end of the fixing strip fit together, a stud is threadedly connected to the upper end of the sleeve block, a fastening cap is fixed to the top of the stud, and the bottom of the stud passes through the interior of the groove and is rotatably connected to the pressure plate through a bearing, and anti-slip rings are fixed to the lower surfaces of the pressure plate and the fastening cap.

[0015] Preferably, the plurality of hip external fixation rods are fixed by connecting belts, and Velcro straps are fixed to the outer edges of both sides of the connecting belts, and positioning holes for pins to pass through are formed at the upper and lower ends of the plurality of hip external fixation rods, and the two pelvic support plates are also formed with positioning holes for pins to pass through, and the positioning holes extend to the interior of the reserved holes.

[0016] Preferably, multiple support blocks are fixed to the outer walls of the two pelvic support plates, and the number of support blocks is arranged in a one-to-one correspondence with the number of reserved holes. A mounting hole for a pin to pass through is opened in the middle of each support block, and a pull ring is integrally formed on the top of the pin. A support ring is fixedly installed on the rod-shaped outer part of each pin, and a return spring is provided between the support ring and the support block.

[0017] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0018] The present invention uses a pressure sensor to detect the pressure between the inflatable airbag and the patient's skin, thereby preventing the patient from experiencing pain or secondary injury due to excessive pressure after the inflatable airbag is pressurized and fixed. The pressure data received is collected by the pressure sensor, and then the data is processed by the processing chip module and displayed on the display screen of the control panel itself, so that medical staff can know whether the air injected by the inflatable airbag at this time will cause pain or secondary injury to the patient. At the same time, in order to avoid secondary injury to the patient's hip bone when using the fixator, the present invention uses a detachable structure for the two pelvic support plates and the external hip bone fixation rod and the internal hip bone fixation rod. Therefore, when fixing, the hip bone or pelvis can be fixed first, and then the docking can be completed, thereby improving the fixation effect. Secondly, considering that the airbag has good sealing performance, the patient's injured part is not breathable and easily causes infection symptoms, and the gas filling process is prone to uneven pressure, and the injured part is easily squeezed to cause the wound to worsen, the present invention uses the reserved vents to allow the skin tissue to contact with the outside air, and because the vents are evenly spaced on the inflatable airbag, the pressure difference is avoided to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] Figure 1 It is a schematic diagram of the main cross-sectional parts structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the combined parts of the pelvic support plate, the hip bone external fixation rod and the pin in the present invention;

[0022] Figure 3 It is a schematic diagram of the parts structure of the hip external fixation rod, the connecting belt and the positioning hole in another perspective of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the combined parts of the expansion airbag and the vent hole in the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the combined parts of the T-shaped clamp block, the support bar and the hip internal fixation rod in the present invention;

[0025] Figure 6 yes Figure 1 A part structure enlarged schematic diagram;

[0026] Figure 7 yes Figure 1 The enlarged schematic diagram of the structure of the part B in FIG.

[0027] Figure 8 yes Figure 1 The enlarged schematic diagram of the C part structure;

[0028] Fig. 9 yes Figure 2 The enlarged schematic diagram of the D part structure;

[0029] Fig.10 yes Figure 2 The enlarged schematic diagram of the structure of the E part parts;

[0030] In the figure:

[0031] 1. Pelvic support plate; 2. Upper docking block; 3. Lower docking block; 4. Fixing bolt; 5. Hinge; 6. Sleeve block; 7. Fixing strip; 8. Velcro fleece surface; 9. Velcro hook surface; 10. Inflatable airbag; 11. Ventilation hole; 12. T-shaped block; 13. Card strip; 14. Support sheet; 15. Hip internal fixation rod; 16. Hip external fixation rod; 17. Reserved hole; 18. Support ring; 19. Exhaust pipe; 20. Injection pipe; 21. Exhaust Air valve; 22. Three-way pipe; 23. Shell; 24. Micro air injection pump; 25. Filter screen tube; 26. Processing chip module; 27. Battery holder; 28. Reset spring; 29. ​​Control panel; 30. Pressure sensor; 31. Serrated contact plate; 32. Serrated protrusion; 33. Fastening cap; 34. Pressing plate; 35. Anti-slip ring; 36. Connecting belt; 37. Velcro strap; 38. Pin; 39. Positioning hole; 40. Support block. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solution of the present application, the following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0033] See also Figure 1 - Fig.10A first aid fixer for pelvic and hip joint trauma, comprising two pelvic support plates 1, a hip external fixation rod 16, a hip internal fixation rod 15 and an inflatable airbag 10, an upper docking block 2 and a lower docking block 3 are respectively fixed at the upper and lower ends of the two pelvic support plates 1, the two lower docking blocks 3 are installed by a fixing bolt 4 and a hinge 5, and a sleeve block 6 and a fixing strip 7 are respectively fixed at the upper ends of the two upper docking blocks 2:

[0034] The inner sides of the two pelvic support plates 1 are fixedly mounted with Velcro hook surfaces 9 for fitting with Velcro fleece surfaces 8, and an inflatable airbag 10 is fixedly mounted on one side of the Velcro fleece surfaces 8. The inflatable airbag 10 and the middle of the pelvic support plate 1 are provided with a plurality of ventilation holes 11 for ventilation of the patient's skin;

[0035] The upper ends of the two lower docking blocks 3 are fixedly mounted with a clamping strip 13 for clamping the T-shaped clamping block 12, and the upper ends of the T-shaped clamping blocks 12 are integrally formed with a support sheet 14, and the front ends of the support sheets 14 are evenly spaced with hip internal fixation rods 15;

[0036] The front ends of the two pelvic support plates 1 are each provided with a reserved hole 17 for inserting a plurality of hip external fixation rods 16. Considering that the existing pelvic and hip joint trauma emergency fixators usually need to fix the patient's waist in time when in use, but since the patient has basically lost the ability to move, it is easy to cause secondary injury to the patient due to excessive force during the fixation process, and an air bag is generally installed inside the instrument to support the patient, but the air bag has good sealing performance, resulting in airtightness of the patient's injured part, which is easy to cause infection symptoms, and the gas filling process is prone to uneven pressure, and the injured part is easily squeezed, causing the wound to worsen. The present invention uses a pressure sensor 30 to detect the pressure between the inflatable air bag 10 and the patient's skin, thereby preventing the patient from experiencing pain or secondary injury due to excessive pressure after the inflated air bag 10 is pressurized and fixed. The pressure data collected by the pressure sensor 30 is then processed by a chip module After the data is processed by block 26, it is displayed on the display screen of the control panel 29 itself, so that the medical staff can know whether the air injected by the inflatable airbag at this time will cause pain or secondary injury to the patient. At the same time, in order to avoid secondary injury to the patient's hip bone when using the fixator, the two pelvic support plates 1 and the external hip fixation rod and the internal hip fixation rod of the present invention are all detachable structures. Therefore, when fixation is performed, the fixation of the hip bone or pelvis can be completed first, and then the docking can be completed, thereby improving the fixation effect. Secondly, considering that the airbag has good sealing performance, the patient's injured part is not breathable and easy to cause infection symptoms, and the gas filling process is prone to uneven pressure, and the injured part is easily squeezed, causing the wound to worsen. The present invention will use the reserved ventilation holes 11 to allow the skin tissue to contact with the outside air, and because the ventilation holes 11 are evenly spaced on the inflatable airbag 10, the pressure difference is avoided to the greatest extent.

[0037] Please refer to Figure 1 , Figure 2 , Figure 4 and Fig.10 As shown, an exhaust pipe 19 and an air injection pipe 20 are respectively provided inside one of the air vents 18 opened on the inflatable airbag 10. The end of the exhaust pipe 19 is connected to an exhaust valve 21 through a telescopic tube, and the upper end of the air injection pipe 20 is connected to a three-way pipe 22. The end of the three-way pipe 22 passes through the shell 23 through a pipeline and is connected to the air injection end of a micro air injection pump 24. The micro air injection pump 24 is arranged to cooperate with the air injection pipe 20 to inject gas into the interior of the telescopic airbag. When in use, the switch of the micro air injection pump 24 will be started. At this time, the negative pressure end of the micro air injection pump 24 will pump external air into the air injection pipe 20 to complete the air injection process.

[0038] Please refer to Figure 1 , Figure 2 and Figure 7 As shown, the air outlet end of the micro air injection pump 24 passes through a pipe to the side end of the shell 23 and is located inside the filter screen tube 25, and the filter screen tube 25 is threadedly connected to the side end of the shell 23, and the wall of the filter screen tube 25 is provided with holes for air circulation at equal intervals. By setting the filter screen tube 25, the gas pumped into the micro air injection pump 24 is filtered, thereby preventing the air injection pipe 20 from being blocked due to excessive dust in the external environment.

[0039] Please refer to Figure 1 and Figure 2 As shown, the interior of the shell 23 is provided with placement cavities for the processing chip module 26, the battery holder 27 and the micro-injection pump 24 in sequence. The processing chip module 26 is connected to the control panel 29 circuit at the upper end of the shell 23 through a wire, and one side of the processing chip module 26 is connected to the battery holder 27 circuit through a wire. A backup battery is provided inside the battery holder 27, and the control panel 29 is also connected to the micro-injection pump 24 circuit through a wire. The processing chip module 26 is provided to process the pressure data collected by the pressure sensor 30. The data is mainly processed by the AD converter and DA converter of the processing chip module 26 itself and displayed on the display screen of the control panel 29, so that medical staff can intuitively understand the pressure applied by the inflated airbag 10 at this time.

[0040] Please pay special attention to the figure, in which a cavity for placing a pressure sensor 30 is reserved inside the wall of the contact surface of one of the inflatable airbags 10 and the patient's skin, and the pressure sensor 30 is connected to the control panel 29 circuit through a telescopic wire. By setting up the pressure sensor 30, the pressure applied to the patient's skin by the inflatable airbag 10 can be detected.

[0041] Please refer to Figure 1 , Figure 2 and Fig. 9 As shown, a groove is provided in the middle of the sleeve block 6 for the fixing strip 7 to pass through, a serrated contact plate 31 is fixed at the lower end of the inner part of the groove, and the serrated contact plate 31 and the serrated protrusion 32 at the lower end of the fixing strip 7 fit each other, a stud is threadedly connected to the upper end of the sleeve block 6, a fastening cap 33 is fixed to the top of the stud, and the bottom of the stud passes through the interior of the groove and is rotatably connected to the pressure plate 34 through a bearing, and the lower surfaces of the pressure plate 34 and the fastening cap 33 are fixed with anti-slip rings 35, and the fixing strip 7 is provided in conjunction with the sleeve block 6 to fix the two upper docking blocks 2. When fixing, the fixing strip 7 is passed through the sleeve block 6 and then the fixing cap is tightened to make the stud drop, and when the bottom of the stud will contact the pressure plate 34 to drop and contact with the upper surface of the fixing strip 7, the serrated protrusion 32 will fit with the serrated contact plate 31, and the fixing will be completed at this time.

[0042] Please refer to Figure 1 , Figure 2 , Figure 3 and Fig. 9 As shown, multiple hip external fixation rods 16 are fixed by connecting belts 36, and Velcro straps 37 are fixed to the outer edges of both sides of the connecting belts 36. Positioning holes 39 for pins 38 to pass through are provided at the upper and lower ends of the multiple hip external fixation rods 16. The two pelvic support plates 1 also have positioning holes 39 for pins 38 to pass through, and the positioning holes 39 pass through the inside of the reserved holes 17. The Velcro straps 37 are provided to fix the hip external fixation rods 16 and the hip internal fixation rods 15. When the hip external fixation rods 16 are plugged into the pelvic side fixing plates, the hip external fixation rods 16 and the hip internal fixation rods 15 are wrapped and bound by the Velcro straps 37.

[0043] Please refer to Figure 1 , Figure 2 and Fig. 9 As shown, multiple support blocks 40 are fixed to the outer walls of the two pelvic support plates 1, and the number of support blocks 40 is set in a one-to-one correspondence with the number of reserved holes 17. A mounting hole for the pin 38 to pass through is opened in the middle of each support block 40, and a pull ring is integrally formed on the top of the pin 38. A supporting ring 18 is fixedly installed on the rod-shaped outer part of each pin 38, and a reset spring 28 is abutted between the supporting ring 18 and the support block 40. The reset spring 28 is provided to reset the pin 38. When the hip external fixation rod 16 is inserted into the reserved hole 17, the pull ring is released at this time, and the pin 38 will be reset by the reset spring 28 so that the supporting ring 18 drives the pin 38 to pass through the reserved hole 17 and the positioning hole 39 of the hip external fixation rod 16, thereby completing the fixation process.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A first aid fixator for pelvic and hip joint trauma, comprising two pelvic support plates (1), a hip external fixation rod (16), a hip internal fixation rod (15) and an inflatable airbag (10), characterized in that: An upper docking block (2) and a lower docking block (3) are fixed to the upper and lower ends of the two pelvic support plates (1), respectively; the two lower docking blocks (3) are installed via a fixing bolt (4) in conjunction with a hinge (5); and a sleeve block (6) and a fixing strip (7) are fixed to the upper ends of the two upper docking blocks (2); The inner sides of the two pelvic support plates (1) are fixedly mounted with Velcro hook surfaces (9) for fitting with Velcro fleece surfaces (8), an expansion airbag (10) is fixedly mounted on one side of the Velcro fleece surfaces (8), and a plurality of ventilation holes (11) for ventilation of the patient's skin are provided in the middle of the expansion airbag (10) and the pelvic support plates (1); A clamping strip (13) for clamping the T-shaped clamping block (12) is fixedly mounted on the upper ends of the two lower docking blocks (3); a support sheet (14) is integrally formed on the upper ends of the T-shaped clamping blocks (12); and hip internal fixation rods (15) are evenly spaced at the front ends of the support sheets (14); The front ends of the two pelvic support plates (1) are each provided with a reserved hole (17) for inserting a plurality of hip bone external fixation rods (16).

2. The first aid fixator for pelvic and hip joint trauma according to claim 1, characterized in that: An exhaust pipe (19) and an air injection pipe (20) are respectively provided inside one of the vent holes (11) (18) opened on the expansion airbag (10); the end of the exhaust pipe (19) is connected to an exhaust valve (21) via a telescopic tube, and the upper end of the air injection pipe (20) is connected to a three-way pipe (22); the end of the three-way pipe (22) passes through the shell (23) through a pipeline and is connected to the air injection end of the micro air injection pump (24).

3. The first aid fixator for pelvic and hip joint trauma according to claim 2, characterized in that: The air outlet end of the micro air injection pump (24) penetrates through a pipeline to the side end of the housing (23) and is located inside the filter screen tube (25), and the filter screen tube (25) is threadedly connected to the side end of the housing (23), and through holes for air circulation are opened at equal intervals on the wall of the filter screen tube (25).

4. The first aid fixator for pelvic and hip joint trauma according to claim 2, characterized in that: The housing (23) is provided with placement cavities for placing a processing chip module (26), a battery holder (27) and a micro-gas injection pump (24) in sequence. The processing chip module (26) is connected to a control panel (29) circuit at the upper end of the housing (23) via a wire. One side of the processing chip module (26) is connected to a battery holder (27) circuit via a wire. A backup battery is provided inside the battery holder (27). The control panel (29) is also connected to a micro-gas injection pump (24) circuit via a wire.

5. The first aid fixator for pelvic and hip joint trauma according to claim 1, characterized in that: A cavity for placing a pressure sensor (30) is reserved inside the wall of one of the inflatable airbags (10) at the contact surface with the patient's skin, and the pressure sensor (30) is connected to the control panel (29) circuit via a telescopic wire.

6. The first aid fixator for pelvic and hip joint trauma according to claim 1, characterized in that: A slot body for the fixing strip (7) to pass through is formed in the middle of the sleeve block (6), a sawtooth contact plate (31) is fixed at the lower end of the interior of the slot body, and the sawtooth contact plate (31) and the sawtooth protrusion (32) at the lower end of the fixing strip (7) fit each other, a stud is threadedly connected to the upper end of the sleeve block (6), a fastening cap (33) is fixed to the top of the stud, and the bottom of the stud passes through the interior of the slot body and is rotatably connected to the pressure plate (34) through a bearing, and anti-slip rings (35) are fixed to the lower surfaces of the pressure plate (34) and the fastening cap (33).

7. The first aid fixator for pelvic and hip joint trauma according to claim 1, characterized in that: The plurality of hip external fixation rods (16) are fixed to each other via a connecting belt (36), and Velcro straps (37) are fixed to the outer edges of both sides of the connecting belt (36). Positioning holes (39) for pins (38) to pass through are provided at the upper and lower ends of the plurality of hip external fixation rods (16), and the two pelvic support plates (1) are also provided with positioning holes (39) for pins (38) to pass through, and the positioning holes (39) pass through the interior of the reserved holes (17).

8. The first aid fixator for pelvic and hip joint trauma according to claim 1, characterized in that: A plurality of support blocks (40) are fixed to the outer side walls of the two pelvic support plates (1), and the number of the support blocks (40) is arranged in a one-to-one correspondence with the number of the reserved holes (17). A mounting hole for the pin (38) to pass through is provided in the middle of each support block (40), and a pull ring is integrally formed on the top of the pin (38). A support ring (18) is fixedly installed on the rod-shaped outer part of each pin (38), and a return spring (28) is provided between the support ring (18) and the support block (40).

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