Autologous blood transfusion device

Abstract

The invention discloses an autologous blood transfusion device which comprises a shell mechanism, an autologous blood return mechanism and a binding mechanism, the shell mechanism serves as an accommodating part for protecting internal core components, blood of the autologous blood return mechanism is transfused back into a patient, the binding mechanism serves as an instrument to be bound to the waist of the patient, and the shell mechanism is composed of a shell, a handle, a supporting bottom plate and a control panel. A carrying handle is installed at the top of the shell, bearing vertical rods are installed on the two sides of the plate face of a supporting bottom plate respectively, the supporting bottom plate is transversely installed in the middle of the bottom end of the shell, and a buffering cushion is installed at the bottom of the supporting bottom plate. The negative pressure relief valve is simple in structure, stable in pressure conversion and capable of avoiding damage caused by excessive blood pressure conveying, pressure protection is adopted, the positive pressure relief valve is automatically opened when H2O is 2cm, pneumothorax risks are prevented, the manual negative pressure relief valve can be manually intervened in emergency situations, and operation flexibility is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the medical technical field, specifically to a kind of autologous blood return device. BACKGROUND

[0002] Autologous blood transfusion is to collect the blood or blood components of a patient, store or process, and then return to the patient when needed during or after surgery. It is a relatively safe blood transfusion method. Autologous blood transfusion includes storage autologous blood transfusion, recovery autologous blood transfusion and dilution autologous blood transfusion.

[0003] Among them, the Chinese patent with application number "CN201821096081.X" discloses a "one-time autologous blood return device", which is a mature technology. It is recorded that "the utility model discloses a one-time autologous blood return device, which comprises a blood bag puncture device, a bottle plug puncture device, a first three-way connector, a first infusion tube, a blood collection tube, an infusion filter device, a second three-way connector, a second infusion tube and a venous puncture device. The one-time autologous blood return device has the functions of blood collection, physiological saline delivery and autologous blood return. When used for the same patient, the puncture needle assembly can be detached without replacing the entire autologous blood return device, improving product utilization and reducing use cost.

[0004] In addition, it also has the following shortcomings:

[0005] 1) In the complex outdoor rescue task, the traditional self-blood return device cannot be carried at any time, and cannot be used for autologous blood return in complex environment during war injury operation, which leads to low efficiency and success rate of war injury treatment, and high mortality rate of wounded personnel.

[0006] 2) Wounded personnel usually suffer from multiple injuries in multiple organs, with large and uncontrollable blood loss, requiring rapid and effective blood transfusion support. However, the medical resources in war training field are relatively scarce, with limited blood products, medical equipment and professional medical staff, and open wounds are easily contaminated, with high risk of infection. Traditional allogeneic blood transfusion not only has the problem of blood supply shortage, but also may cause complications, which seriously affects the survival rate and rehabilitation quality of wounded personnel. Therefore, a stable, easy-to-operate, safe and reliable autologous blood return device is needed to meet the special needs of war injury treatment in complex environment. SUMMARY

[0007] The present application aims to provide an autologous blood return device to solve the problems in the background art.

[0008] To achieve the above object, the present application provides the following technical scheme: an autologous blood return device, comprising a shell mechanism, an autologous blood return mechanism and a binding mechanism;

[0009] The shell mechanism serves as a container for protecting the internal core components;

[0010] The autologous blood return mechanism returns blood to the patient's body;

[0011] The binding mechanism serves as a device for binding the patient's waist;

[0012] The shell mechanism is composed of a shell, a hand-held handle, a support bottom plate and a control panel, the top of the shell is provided with a hand-held handle, the both sides of the plate surface of the support bottom plate are respectively provided with a bearing vertical rod, the bottom end of the shell is transversely provided with a support bottom plate, the bottom of the support bottom plate is provided with a buffer pad, the normal surface corner of the buffer pad is provided with a control knob, the surface of the control knob is provided with a mechanical control sleeve, the side wall of the control panel is sequentially provided with a pointer scale line for displaying the scale, the side of the control panel is provided with a cavity for storing an air suction bellows, and the cavity is embedded with a bellows.

[0013] As a preferred scheme of the present application, the autologous blood return mechanism comprises a suction base arranged on the normal surface of the shell, the surface of the suction base is provided with a plurality of fastening screws, the middle part of the fastening screw is provided with an adapter slot, the middle part of the slot of the adapter slot is provided with a needle cylinder connecting port, the end of the needle cylinder connecting port is communicated with a guide needle tube, and the end of the guide needle tube is communicated with a push rod.

[0014] As a preferred scheme of the present application, the normal surface of the support bottom plate is provided with a blood recovery cavity for containing, the side of the blood recovery cavity is hinged with a drive roller shaft, the axial side of the drive roller shaft is provided with an arc-shaped sealing cover, the side of the arc-shaped sealing cover is provided with a protective side plate for adjusting, the inside of the adapter slot is embedded with a storage tank for supporting, the middle part of the top end of the storage tank is provided with an adjusting nut, the top end of the arc-shaped guide pipe is communicated with an arc-shaped guide pipe, and the middle part of the top end of the arc-shaped guide pipe is provided with a blood extraction mechanism.

[0015] As a preferred scheme of the present application, the blood extraction mechanism comprises a blood extraction pump connected to the middle part of the top end of the arc-shaped guide pipe, the bottom of the blood extraction pump is attached with a mutual gasket, the middle part of the top end of the mutual gasket is communicated with a first flexible hose, and the surface of the first flexible hose is sleeved with a folding and shrinking groove for arrangement.

[0016] As a preferred scheme of the present application, one end of the first flexible hose is provided with a clamping sleeve, the sleeved bottom of the clamping sleeve is provided with a connecting piece, the bottom of the connecting piece is provided with a protective cover, and the middle part of the bottom end of the protective cover is provided with a conical cover.

[0017] The end of the first telescopic hose is connected with a connector for pipe connection, the end of the connector is connected with a first leather tube, the end of the first leather tube is connected with a fistula needle, the top end of the shell is sealingly connected with a blood delivery mechanism, the blood delivery mechanism comprises a conical base connected with the top end of the shell, the top end of the conical base is provided with a conical connector, the top end of the conical connector is connected with a second telescopic hose for pipe connection, one end of the second telescopic hose is connected with a blood transfusion puncture leather tube.

[0018] As a preferred scheme of the present application, the back of the conical connector is sealingly connected with a blood transfusion pump for circulation delivery, the side wall of the blood transfusion pump is provided with a blood pressure and flow rate detection plate, the detection surface of the blood pressure and flow rate detection plate is sealingly connected with the outer side wall of the blood transfusion pump, the liquid suction end of the blood transfusion pump is sealingly connected with the pipe opening of the storage tank through the second leather tube, the bottom of the blood suction pump is sealingly connected with the bottom of the storage tank through an extension tube, the binding mechanism comprises a sliding limiting strip installed in the middle of the back of the shell, the surface of the sliding limiting strip is provided with a fixed buffer binding pad, the middle of the buffer binding pad is provided with a waist circumference limiting groove, the groove surface of the waist circumference limiting groove is provided with an adjusting pad, the two sides of the adjusting pad are respectively provided with a tightening clasp, and the middle of the tightening clasp is provided with an elastic waist circumference binding belt.

[0019] As a preferred scheme of the present application, a battery compartment is formed at one corner of the back of the shell, and a lithium battery is embedded in the battery compartment, wherein a protective cover is attached to the surface of the lithium battery, and the four corners of the protective cover are provided with fixed connection screw holes.

[0020] As a preferred scheme of the present application, the top of the shell is provided with a purification slot on both sides, a transparent cover is attached to the middle of the groove surface of the purification slot, a circuit board mounting cavity is formed in the shell, a negative pressure analysis mechanism is arranged on the top of the cavity of the circuit board mounting cavity, the negative pressure analysis mechanism comprises a circuit board A installed in the middle of the top of the circuit board mounting cavity, a data transmission wire is arranged on the middle of the top of the circuit board A, an electronic negative pressure adjusting capacitor is arranged on the middle of the surface of the circuit board A, a plurality of blood return sensors are sequentially arranged on the surface of the electronic negative pressure adjusting capacitor, a blood output sensor is arranged at a position corresponding to the blood return sensors, the blood output sensor is arranged in sensing mode with the blood delivery mechanism, and the blood return sensors are arranged in sensing mode with the blood suction mechanism.

[0021] As a preferred scheme of the present application, a pressure detection mechanism is arranged on the middle of the bottom of the circuit board A, the pressure detection mechanism comprises a circuit board B installed on the bottom of the circuit board A, a plug-in seat is transversely arranged on the middle of the top of the circuit board B, a blood pressure detection base is arranged on the middle of the bottom of the plug-in seat, and a capacitor is arranged on the surface of the blood pressure detection base for connection.

[0022] As a preferred scheme of the present application: the inside of the storage tank is filled with a blood filter.

[0023] Compared with the prior art, the present application has the following beneficial effects:

[0024] 1) By adopting the mutual cooperation of the electronic negative pressure regulating capacitor and the capacitor, stable pressure conversion is ensured when the blood is delivered to the patient, the risk of pneumothorax is prevented by adopting the positive pressure release valve which is automatically opened at 2 cmH2O, the manual negative pressure release valve can be manually intervened in emergency, the operation flexibility is increased, the blood recovery cavity and the tube body of the guide needle tube are in communication state to ensure that the blood in the patient's body is guided and finally replaced;

[0025] 2) The blood pressure flow rate detection plate is adopted to detect the blood pressure flow rate, the tank body structure of the storage tank 292 is realized to be communicated to ensure that the separated blood can be better collected in the cavity, the scale error is ± 5%, which is convenient for accurate observation of the blood recovery amount; the water seal cavity and the collection cavity are physically isolated to prevent backflow pollution, the negative pressure value is adjusted to be appropriate, the blood enters the collection cavity through the drainage tube, and after the impurities are removed through the filtering device, the blood is returned to the body of the wounded person through the blood return system, the pressure and the air tightness are monitored in real time during the blood return process, and safe and stable operation is ensured. When the blood recovery amount reaches the set value, the filtered blood is automatically started to return to the wounded person's body, the blood volume is quickly supplemented, and the vital signs are maintained stable;

[0026] 3) The soft tube and the fistula soft needle are adopted to pierce the chest cavity of the patient for drainage, according to the respective communication of the blood pump and the blood pump, a circulating drainage feature is formed, autologous blood return and bleeding are achieved, and the tube communication structure of the second telescopic soft tube is communicated with the puncture tube to realize stable delivery of the filtered blood under a certain reasonable blood pressure. In complex environments such as highlands, cold regions and tropical regions, and on mobile vehicles or ships, the autologous blood return device of the present application can stably operate to meet the needs of war injury treatment in special environments. Through optimization of the structure design and material selection, the device has good vibration resistance and adaptability, and ensures the reliability and durability in harsh environments. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structural schematic view of the present application;

[0028] Figure 2 It is a structural schematic view of the autologous blood return mechanism of the present application;

[0029] Figure 3 It is a structural schematic view of the protective cover of the present application;

[0030] Figure 4The first soft tube structure of the present application is shown in the schematic diagram.

[0031] Figure 5 The blood transfusion puncture tube structure of the present application is shown in the schematic diagram.

[0032] Figure 6 The binding mechanism structure of the present application is shown in the schematic diagram.

[0033] Figure 7 The pressure detection mechanism structure of the present application is shown in the schematic diagram.

[0034] Figure 8 The storage tank structure of the present application is shown in the schematic diagram.

[0035] Figure 9 The blood extraction mechanism structure of the present application is shown in the schematic diagram.

[0036] Figure 10 The push rod structure of the present application is shown in the schematic diagram.

[0037] Figure 11 The fistula-making soft tube needle structure of the present application is shown in the schematic diagram.

[0038] Figure 12 The side structure of the present application is shown in the schematic diagram.

[0039] In the figure: 1, housing mechanism; 11, housing; 111, bearing vertical rod; 1111, circuit board mounting cavity; 12, hand-held handle; 13, supporting bottom plate; 131, buffer pad; 132, control knob; 133, mechanical control sleeve; 134, pointer scale line; 135, chamber;

[0040] 2, autologous blood return mechanism; 21, suction base; 22, fastening screw; 23, connection slot; 24, needle cylinder connecting port; 25, guide needle tube; 26, push rod; 27, blood recovery cavity; 28, drive roller shaft; 29, arc-shaped sealing cover; 291, protective side plate; 292, storage tank; 293, adjusting nut; 294, arc-shaped guide tube;

[0041] 3, blood extraction mechanism; 31, blood extraction pump; 32, mutual gasket; 33, first telescopic hose; 34, folding and retracting groove; 35, clamping sleeve; 36, connecting piece; 37, protective cover; 38, adapter; 39, first soft tube; 391, fistula-making soft tube needle;

[0042] 4, blood delivery mechanism; 41, conical base; 42, conical connecting tube; 43, second telescopic hose; 45, blood transfusion puncture tube; 46, blood transfusion pump; 47, blood pressure and flow rate detection plate; 48, second soft tube;

[0043] 5, binding mechanism; 51, sliding limiting strip; 52, buffer binding pad; 53, waist circumference limiting groove; 54, adjusting washer; 55, tightening clasp; 56, waist circumference binding belt; 57, protective outer cover; 58, linking screw hole; 59, transparent cover;

[0044] 6, negative pressure analysis mechanism; 61, circuit board A; 62, data transmission wire; 63, electronic negative pressure adjusting capacitor; 64, blood backflow sensor; 65, blood output sensor;

[0045] 7, pressure detection mechanism; 71, circuit board B; 72, plug-in seat; 73, blood pressure detection base; 74, capacitor. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0047] Please refer to Figure 1 - Figure 12 The present application provides a technical solution: a self-blood return device, comprising a shell mechanism 1, a self-blood return mechanism 2 and a binding mechanism 5.

[0048] The shell mechanism 1 serves as the accommodation of the protective internal core component.

[0049] The self-blood return mechanism 2 returns blood to the patient's body.

[0050] The binding mechanism 5 serves as the binding of the instrument to the patient's waist.

[0051] The shell mechanism 1 is composed of a shell 11, a hand-held handle 12, a supporting bottom plate 13 and a control panel. The hand-held handle 12 is installed on the top of the shell 11. The load-bearing vertical rods 111 are respectively installed on both sides of the plate surface of the supporting bottom plate 13. The supporting bottom plate 13 is transversely installed at the bottom end of the shell 11. The buffer pad 131 is installed at the bottom of the supporting bottom plate 13. The control knob 132 is arranged at the edge of the front surface of the buffer pad 131. The mechanical control sleeve 133 is arranged on the surface of the control knob 132. The pointer scale line 134 for displaying the scale is arranged on the side wall of the control panel. The cavity 135 for storing the air suction corrugated pipe is formed on the side of the control panel. The corrugated pipe is embedded in the cavity 135.

[0052] In the embodiment, the autologous blood return mechanism 2 comprises a suction base 21 arranged on the front surface of the housing 11, the surface of the suction base 21 is provided with a plurality of fastening screws 22, the middle part of the fastening screw 22 is provided with an adapter slot 23, the middle part of the slot of the adapter slot 23 is provided with a needle cylinder connecting port 24, the end of the needle cylinder connecting port 24 is communicated with a guide needle tube 25, and the end of the guide needle tube 25 is communicated with a push rod 26.

[0053] The needle cylinder connecting port 24 and the guide needle tube 25 are adopted, so that the pressure relief fine adjustment of the blood delivery stage is facilitated.

[0054] In the embodiment, the front surface of the supporting bottom plate 13 is provided with a blood recovery cavity 27 for containing, the side of the blood recovery cavity 27 is hinged with a drive roller shaft 28, the axial side of the drive roller shaft 28 is provided with an arc-shaped sealing cover 29, the side of the arc-shaped sealing cover 29 is provided with a protective side plate 291 for adjustment, the inside of the adapter slot 23 is inlaid with a storage tank 292 for supporting, the middle part of the top end of the storage tank 292 is provided with an adjusting nut 293, the top end of the arc-shaped conduit 294 is communicated with the adjusting nut 293, and the middle part of the top end of the arc-shaped conduit 294 is provided with a blood extraction mechanism 3.

[0055] The arc-shaped conduit 294 and the storage tank 292 are adopted, so that the blood of the patient is extracted and reaches the arc-shaped conduit 294 to complete the blood extraction.

[0056] In the embodiment, the blood extraction mechanism 3 comprises a blood extraction pump 31 connected to the middle part of the top end of the arc-shaped conduit 294, the bottom of the blood extraction pump 31 is fitted with a mutual gasket 32, the middle part of the top end of the mutual gasket 32 is communicated with a first flexible hose 33, and the surface of the first flexible hose 33 is sleeved with a folding and shrinking groove 34 for arrangement.

[0057] The mutual gasket 32 and the first flexible hose 33 are adopted, the pump body liquid outlet end of the blood extraction pump 31 is guided, the blood extraction pump 31 is inserted into the first flexible hose 33 until the first flexible hose 33 is reached.

[0058] In the embodiment, one end of the first flexible hose 33 is provided with a clamping sleeve 35, the sleeved bottom of the clamping sleeve 35 is provided with a connecting piece 36, the bottom of the connecting piece 36 is provided with a protective cover 37, and the middle part of the bottom end of the protective cover 37 is provided with a conical cover.

[0059] The end of the first telescopic hose 33 is connected with a connector 38 for pipe connection, the end of the connector 38 is connected with a first leather tube 39, the end of the first leather tube 39 is connected with a fistula needle 391, the top end of the shell 11 is sealingly connected with a blood delivery mechanism 4, the blood delivery mechanism 4 comprises a conical base 41 which is connected with the top end of the shell 11, the top end of the conical base 41 is provided with a conical connector 42, the top end of the conical connector 42 is connected with a second telescopic hose 43 for pipe connection, one end of the second telescopic hose 43 is connected with a blood transfusion puncture leather tube 45.

[0060] The end of the second telescopic hose 43 and the blood transfusion puncture leather tube 45 are guided, the end of the fistula needle 391 is connected with the arm of the patient, and the corresponding blood is extracted for purification.

[0061] In the embodiment, the back of the conical connector 42 is sealingly connected with a blood transfusion pump 46 for circulation delivery, the side wall of the blood transfusion pump 46 is provided with a blood pressure and flow rate detection plate 47, the detection surface of the blood pressure and flow rate detection plate 47 is sealingly connected with the outer side wall of the blood transfusion pump 46, the liquid extraction end of the blood transfusion pump 46 is sealingly connected with the pipe opening of the storage tank 292 through a second leather tube 48, the bottom of the blood extraction pump 31 is sealingly connected with the bottom of the storage tank 292 through an extension pipe, and the binding mechanism 5 comprises a sliding limiting strip 51 which is installed on the back of the shell 11, the surface of the sliding limiting strip 51 is provided with a fixed buffer binding pad 52, the middle part of the buffer binding pad 52 is provided with a waist circumference limiting groove 53, the groove surface of the waist circumference limiting groove 53 is provided with an adjusting pad 54, and the two sides of the adjusting pad 54 are respectively provided with a tightening clasp 55, and the middle part of the tightening clasp 55 is provided with an elastic waist circumference binding belt 56.

[0062] In terms of carrying, the sliding limiting strip 51 is used to bind the waist of the patient, the adjusting pad 54 is used to pad the waist of the patient, and the convenience during carrying is improved.

[0063] In the embodiment, a battery compartment is formed at one corner of the back of the shell 11, and a lithium battery is embedded in the battery compartment, wherein a protective outer cover 57 is attached to the surface of the lithium battery, and the four corner positions of the protective outer cover 57 are provided with connector screw holes 58 for fixation.

[0064] The battery compartment is used to store the power required by the device by using chemical lithium batteries, and the protective outer cover 57 is used to seal the surface of the battery.

[0065] In the embodiment, the top of the shell 11 is provided with a purification slot on both sides, and a transparent cover 59 is attached to the middle surface of the slot. The inside of the shell 11 is provided with a circuit board mounting cavity 1111, and the top of the cavity is provided with a negative pressure analysis mechanism 6. The negative pressure analysis mechanism 6 includes a circuit board A61 mounted in the middle of the top of the cavity. The top of the circuit board A61 is provided with a data transmission wire 62, and the middle surface of the circuit board A61 is provided with an electronic negative pressure adjusting capacitor 63. The surface of the electronic negative pressure adjusting capacitor 63 is provided with a plurality of blood return sensors 64, and the position corresponding to the blood return sensors 64 is provided with a blood output sensor 65. The blood output sensor 65 is inductively arranged with the blood delivery mechanism 4, and the blood return sensor 64 is inductively arranged with the blood extraction mechanism 3.

[0066] The blood return sensor 64 and the blood output sensor 65 detect the state information of the blood, and the electronic negative pressure adjusting capacitor 63 detects the replacement in the blood.

[0067] In the embodiment, the bottom of the circuit board A61 is provided with a pressure detection mechanism 7, and the pressure detection mechanism 7 includes a circuit board B71 mounted on the bottom of the circuit board A61. The top of the circuit board B71 is provided with a plug-in seat 72, and the middle of the bottom of the plug-in seat 72 is provided with a blood pressure detection base 73. The surface of the blood pressure detection base 73 is provided with a capacitor 74 for communication.

[0068] The circuit board B71 and the capacitor 74 are used to set the pressure data required to be input into the abdominal blood vessels of the patient.

[0069] In the embodiment, the inside of the storage tank 292 is filled with a blood filter.

[0070] The blood filter is used to guide the blood.

[0071] In specific use, first step one: assemble the device to the patient:

[0072] In the war training injury operation site, one end of the blood transfusion puncture skin tube 45 of the autologous blood transfusion device is realized as a tube, and in the tube stage, the blood transfusion is connected to the chest or postoperative drainage site of the wounded person, and the negative pressure control system is opened,

[0073] Adjust to a suitable negative pressure value. During the setting process, the negative pressure analysis mechanism 6 detects the specific patient's blood pressure through the circuit information in the shell 11. The electronic negative pressure adjustment capacitor 63 is used to automatically detect the blood's own condition when the blood pressure is output. The blood passes through the fistula soft skin needle 391 to the connector 38, and then from the connector 38 to the slot position of the folding contraction slot 34, and gradually circulates until it reaches the position of the mutual gasket 32. It is pressurized by the blood pump and enters the storage tank 292. During the reflux process, the filter device in the tank body is combined to remove impurities and return to the system. During the return process, the device monitors the pressure and air tightness in real time to ensure safe and stable operation. When the blood recovery volume reaches the set value, the return program is automatically started to return the filtered blood to the injured person's body to quickly replenish blood volume and maintain stable vital signs.

[0074] Step 2: Blood transfusion:

[0075] At this time, during the reinfusion phase, one end of the adjusting nut 293 is connected until it reaches the blood recovery chamber 27 and is finally placed in the blood transfusion pump 46. During the delivery phase, the blood output sensor 65 is used to sense the state of the blood. The matching is implemented according to one end of the circuit board B71. At this time, the user senses the blood pressure according to one end of the blood pressure detection base 73.

[0076] The setting program: the negative pressure adjusting device with the negative pressure adjusting range of-10cmH2O to-40cmH2O and the automatic high negative pressure release valve, the water seal and air tightness system including the pre-packaged sterile water volume of the water seal device of more than 50ml and the monitoring device with the air leakage detection sensitivity of triggering alarm when the air leakage amount is more than 50ml / min, the blood recovery system including the transfusion device with the transfusion rate of more than 200ml / min and the filtering device with the filtering precision of less than 40um, the safety feature module including the pressure protection device and the biocompatible material, ensure that the blood delivered to the human body in the filtering stage realizes the liquid leading out formed to one end of the conical connector 42, the rotation speed of the blood transfusion pump 46 is set according to the top end of the conical connector 42, the sensing information is realized on the sensing of the blood pressure flow rate detection plate 47, the one end of the blood transfusion puncture skin tube 45 further reaches the patient's blood vessel, the power of the pump body is controlled, a reasonable range is set: the transfusion rate is more than 200ml / min (continuous mode), the blood is quickly recovered and transfused, the blood volume of the wounded is effectively supplemented, the filtering precision is less than 40um, the purity of the transfused blood is ensured, the setting in the corresponding circuit board B71 is further realized, the setting is realized through the capacitor 74, the clinical identification that the autologous blood transfusion device of the application can stably run in the complex environment of highland, cold region, tropical region and on the mobile vehicles or ships, meet the needs of the war injury treatment in special environment is solved, through the optimization of structure design and material selection, the device has good vibration resistance and adaptability, ensure the reliability and durability in harsh environment.

[0077] The content not described in detail in the description belongs to the prior art known to those skilled in the art, although the application is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. An autologous blood transfusion device, comprising a housing mechanism (1), an autologous blood return mechanism (2) and a binding mechanism (5); The housing mechanism (1) serves as a protective internal core component; The autologous blood return mechanism (2) returns blood to the patient's body; characterized in that The binding mechanism (5) is used to bind the instrument to the patient's waist; The housing mechanism (1) is composed of a housing (11), a hand-held handle (12), a support bottom plate (13) and a control panel, the top of the housing (11) is provided with a hand-held handle (12), the both sides of the plate surface of the support bottom plate (13) are respectively provided with a bearing vertical rod (111), the bottom end of the housing (11) is transversely provided with a support bottom plate (13), the bottom of the support bottom plate (13) is provided with a buffer pad (131), the normal surface corner of the buffer pad (131) is provided with a control knob (132), the surface of the control knob (132) is provided with a mechanical control sleeve (133), the side wall of the control panel is sequentially provided with a pointer scale line (134) for displaying the scale, the side of the control panel is provided with a cavity (135) for storing the inhalation bellows, and the cavity (135) is embedded with the bellows.

2. The autologous blood transfusion device of claim 1, wherein: The autologous blood return mechanism (2) comprises a suction base (21) arranged on the normal surface of the housing (11), the surface of the suction base (21) is provided with a plurality of fastening screws (22), the middle part of the fastening screw (22) is provided with an adapter slot (23), the middle part of the slot of the adapter slot (23) is provided with a needle cylinder connecting port (24), the end of the needle cylinder connecting port (24) is communicated with a guide needle tube (25), and the end of the guide needle tube (25) is communicated with a push rod (26).

3. The autologous blood transfusion device of claim 2, wherein: The normal surface of the support bottom plate (13) is provided with a blood recovery cavity (27) for containing, the side of the blood recovery cavity (27) is hinged with a drive roller shaft (28), the axial side of the drive roller shaft (28) is provided with an arc-shaped sealing cover (29), the side of the arc-shaped sealing cover (29) is provided with a protective side plate (291) for adjusting, the inside of the adapter slot (23) is embedded with a storage tank (292) for supporting, the top end middle part of the storage tank (292) is provided with an adjusting nut (293), the top end tube of the adjusting nut (293) is communicated with an arc-shaped guide pipe (294), and the top end middle part of the arc-shaped guide pipe (294) is provided with a blood drawing mechanism (3).

4. The autologous blood transfusion device of claim 3, wherein: The blood drawing mechanism (3) comprises a blood drawing pump (31) connected to the top end middle part of the arc-shaped guide pipe (294), the bottom of the blood drawing pump (31) is fitted with a mutual gasket (32), the top end middle part of the mutual gasket (32) is communicated with a first flexible hose (33), and the surface of the first flexible hose (33) is sleeved with a folding shrinkage groove (34) for setting.

5. The autotransfusion device of claim 4, wherein: One end of the first flexible hose (33) is provided with a clamping sleeve (35), the sleeved bottom of the clamping sleeve (35) is provided with a connecting piece (36), the bottom of the connecting piece (36) is provided with a protective cover (37), and the bottom end middle part of the protective cover (37) is provided with a conical cover. The end of the first telescopic hose (33) is communicated with a connector (38) for pipe connection, the end of the connector (38) is communicated with a first leather tube (39), the end of the first leather tube (39) is communicated with a fistula needle (391), the top end of the shell (11) is sealingly communicated with a blood delivery mechanism (4), the blood delivery mechanism (4) comprises a conical base (41) which is connected to the middle of the top end of the shell (11), the middle of the top end of the conical base (41) is provided with a conical connector (42), the top end of the conical connector (42) is communicated with a second telescopic hose (43) for pipe connection, one end of the second telescopic hose (43) is connected with a blood transfusion puncture leather tube (45).

6. A device for autotransfusion according to claim 5, characterized in that: The back of the conical connector (42) is sealingly communicated with a blood transfusion pump (46) for circulation delivery, the side wall of the blood transfusion pump (46) is provided with a blood pressure flow rate detection plate (47), the detection surface of the blood pressure flow rate detection plate (47) is sealingly communicated with the outer side wall of the blood transfusion pump (46), the liquid suction end of the blood transfusion pump (46) is sealingly communicated with the pipe opening of the storage tank (292) through a second leather tube (48), the bottom of the blood suction pump (31) is sealingly communicated with the bottom of the storage tank (292) through an extension tube, the binding mechanism (5) comprises a sliding limiting strip (51) which is installed in the middle of the back of the shell (11), the surface of the sliding limiting strip (51) is provided with a fixed buffer binding pad (52), the middle of the buffer binding pad (52) is provided with a waist circumference limiting groove (53), the groove surface of the waist circumference limiting groove (53) is provided with an adjusting gasket (54), the two side edges of the adjusting gasket (54) are respectively provided with a tightening clasp (55), and the middle of the tightening clasp (55) is provided with an elastic waist circumference binding belt (56).

7. The autologous blood transfusion device of claim 1, wherein: A battery compartment is formed at one corner of the back of the shell (11), and a lithium battery is embedded in the battery compartment, wherein a protective cover (57) is attached to the surface of the lithium battery, and the four corner positions of the protective cover (57) are provided with adapter screw holes (58) for fixation.

8. The autologous blood transfusion device of claim 1, wherein: The top of the shell (11) is provided with purification grooves on both sides, and a transparent cover (59) is attached to the middle surface of the groove, the inside of the shell (11) is provided with a circuit board mounting cavity (1111), the top of the cavity of the circuit board mounting cavity (1111) is provided with a negative pressure analysis mechanism (6), the negative pressure analysis mechanism (6) comprises a circuit board A (61) which is installed in the middle of the top end of the circuit board mounting cavity (1111), the middle of the top end of the circuit board A (61) is provided with a data transmission wire (62), the middle surface of the circuit board A (61) is provided with an electronic negative pressure adjusting capacitor (63), and the surface of the electronic negative pressure adjusting capacitor (63) is sequentially provided with a plurality of blood return sensors (64), a blood output sensor (65) is arranged at a position corresponding to the blood return sensor (64), the blood output sensor (65) is arranged in sensing mode with the blood delivery mechanism (4), and the blood return sensor (64) is arranged in sensing mode with the blood suction mechanism (3).

9. The autotransfusion device of claim 8, wherein: The middle part of the bottom end of the circuit board A (61) is provided with a pressure detection mechanism (7), the pressure detection mechanism (7) comprises a circuit board B (71) installed on the bottom of the circuit board A (61), the middle part of the top end of the circuit board B (71) is transversely provided with a plug-in seat (72), the middle part of the bottom end of the plug-in seat (72) is provided with a blood pressure detection base (73), and the surface of the blood pressure detection base (73) is provided with a capacitor (74) for communication.

10. The autologous blood transfusion device of claim 3, wherein: The inside of the storage tank (292) is filled with a blood filter.

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