CN215023821U - Disposable venous transfusion device for central venous pressure measurement by double-head water column method - Google Patents
Disposable venous transfusion device for central venous pressure measurement by double-head water column method Download PDFInfo
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- CN215023821U CN215023821U CN202120551855.9U CN202120551855U CN215023821U CN 215023821 U CN215023821 U CN 215023821U CN 202120551855 U CN202120551855 U CN 202120551855U CN 215023821 U CN215023821 U CN 215023821U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 62
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Abstract
The utility model discloses a disposable double-head water column method central venous pressure measuring venous transfusion system, which comprises a transfusion tube, a measuring tube and a patient connecting tube, and is characterized in that the transfusion tube, the measuring tube and the patient connecting tube are communicated through a connecting structure, and the measuring tube comprises a measuring scale mark; the upper end of the infusion tube is connected with intravenous drip liquid, and the upper end of the measuring tube is connected with physiological saline; the infusion tube, the measuring tube and the patient connecting tube all comprise switch structures for controlling the opening and closing of the pipelines. The utility model can save the use of a plurality of transfusion devices and a tee joint during each measurement, and reduce the risk of catheter-related infection caused by repeated connection; meanwhile, the preparation of a CVP measuring scale is omitted, and the time is saved; when the device is used, the measurement can be started only by lowering the bed head and finding out the 0-degree scale, so that the time can be saved, the cost is reduced, the workload is reduced, and meanwhile, the risk of catheter-related blood flow infection caused by repeated replacement of infusion sets, connection of infusion connectors and the like is avoided.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to is disposable double-end water column method central venous pressure measuring's venous transfusion system.
Background
Central Venous Pressure (CVP) is the pressure at which the superior and inferior vena cava enter the right atrium, and can be measured directly by placement of a central venous catheter. In 1959, Hughes and Magover found that blood loss caused a decrease in CVP in a study in which patients were monitored for right atrial pressure after thoracotomy, the relationship between CVP and volume was first described. The importance of CVP monitoring in cardiovascular surgery, hypovolemic shock, heart failure and sudden cardiac arrest was fully elucidated by English et al for the first time in 1968. The normal value range of CVP reaches consensus at the end of the 60's in the 20 th century, is 5-10 cmH2O, is mainly used as an index for evaluating cardiac preload and is commonly used for clinically guiding fluid infusion speed and fluid infusion amount of fluid therapy, and CVP <5cmH2O represents insufficient blood volume; >15cmH2O suggesting cardiac insufficiency, excessive venous vascular bed contraction or increased pulmonary circulatory resistance; if CVP exceeds 20cmH2O, it is indicative of congestive heart failure. CVP is one of the most common hemodynamic monitoring indexes in fluid resuscitation of critical patients at present, and the CVP not only has theoretical basic support, but also can be related to the characteristics of simplicity, convenient operation, low price and the like of a water column method CVP monitoring device, and the like.
At present, the traditional zero-point positioning water column method CVP measurement method is a three-division method zero-point positioning CVP measurement method of a 'thoracic ruler': during measurement, 2 pairs of transfusion leather strips, 1 tee joint, 1 bag of 100ML physiological saline, 1 CVP measuring scale and 1 transfusion stand are prepared. Under the premise of ensuring that the deep venipuncture is unobstructed, the first auxiliary transfusion leather strip is connected with the normal saline and exhausted, then connected with the side interface of the tee joint and exhausted again, one end of the tee joint is connected with the main path of the deep venipuncture, and the other end of the tee joint is connected with the second auxiliary transfusion leather strip. The CVP measuring scale is fixed on the infusion support, and the second auxiliary infusion leather strip is embedded in the clamping groove of the CVP measuring scale and fixed well. The patient is in a 0-degree lying position by adjusting the height of the bed head, the heart is kept parallel to the bed and the ground, the chest ruler is inserted into the chest wall from the side of the human body (namely, the fourth thoracic vertebra is flat), the upper end of the ruler is positioned on the surface of the chest wall (equivalent to the position of a sternum), the lower end of the ruler is positioned below the back, after the chest ruler is pressed, the length of the chest side wall is divided into 3 equal parts, the intersection point of the upper 1/3 and the lower 2/3 is a zero point, the zero point positioning pointer of the central venous pressure measuring scale is pointed to the zero point position determined by the chest ruler, the switch of the tee joint is rotated to communicate the two ways of infusion leather strips, the switch of the first auxiliary leather strip is opened, saline enters the second auxiliary leather strip, when the saline rises to about 30 degrees, the switch of the tee joint is rotated to communicate the second auxiliary leather strip with the deep vein, and when the liquid freely falls to a certain scale and does not fall, the central venous pressure at the moment is obtained. The patient is allowed to rest for 5min and record between two measurements, and in order to ensure the accuracy and the safety of the measurement, the measurement personnel are trained before the measurement and measured by a specially-assigned person, and the measurement is tried to achieve the effect of quickness and accuracy. In addition, when the patient who is ventilated mechanically is measured, the patient is accompanied by a doctor, and the safety of the patient is ensured. It should also be noted that maintaining the patency of the central venous catheter during the measurement is critical to ensure that the CVP monitoring value is accurate, and secondly to exclude the effects of patient disturbances in the intrathoracic pressure, such as coughing, holding breath, agitation, for the patient to measure in a calm state. The structure can increase the complexity and the occupied space of the infusion tube, increase the material consumption, and still need to keep the verticality of the measurement delay long tube, so that the infusion tube is not convenient to use.
The utility model discloses weak point to current clinical water column method CVP measures provides a disposable double-end water column method central venous pressure measuring's of simple structure, scientific and reasonable vein transfusion system.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problem that proposes among the background art, the utility model provides a disposable double-end water column method central venous pressure measuring's vein transfusion system.
The disposable venous transfusion device for measuring the central venous pressure by the double-head water column method comprises a transfusion pipe, a measuring pipe and a patient connecting pipe, and is characterized in that the transfusion pipe, the measuring pipe and the patient connecting pipe are communicated through a connecting structure, and the measuring pipe comprises measuring scale marks; the upper end of the infusion tube is connected with intravenous drip liquid, and the upper end of the measuring tube is connected with physiological saline; the infusion tube, the measuring tube and the patient connecting tube all comprise switch structures for controlling the opening and closing of the pipelines. The utility model can save the use of a plurality of transfusion devices and a tee joint during each measurement, and reduce the risk of catheter-related infection caused by repeated connection; meanwhile, the preparation of a CVP measuring scale is omitted, and the time is saved; when the device is used, the measurement can be started only by lowering the bed head and finding out the 0-degree scale, so that the time can be saved, the cost is reduced, the workload is reduced, and meanwhile, the risk of catheter-related blood flow infection caused by repeated replacement of infusion sets, connection of infusion connectors and the like is avoided.
Furthermore, the upper ends of the infusion tube and the measuring tube are respectively provided with a fixedly connected puncture needle, the puncture needle of the infusion tube is spliced with the intravenous drip liquid, and the puncture needle of the measuring tube is spliced with the physiological saline.
Further, the puncture needle comprises an exhaust hole.
Furthermore, the exhaust hole is positioned at the bottom of the puncture needle.
Further, a hole plug for plugging the exhaust hole is arranged. The vent holes can be opened or closed according to requirements.
Further, the hole plug is connected with the bottom of the puncture needle through a connecting band. This arrangement prevents the plug from being lost.
Further, the connecting band is an elastic band. This arrangement is convenient to use.
Further, a protective cap used for wrapping the puncture needle is arranged and is connected with the puncture needle in a combined mode. This arrangement ensures that the needle is sterile.
Furthermore, the switch structures of the infusion tube and the measuring tube are water stop clamps. The water stop clamp respectively controls the opening and closing of the infusion tube and the measuring tube.
Furthermore, a water stop clip is respectively arranged below the puncture needles of the infusion tube and the measuring tube.
Further, the infusion tube and the measuring tube both comprise Murphy's drip cups. The Murphy's drip cup can play a role in buffering.
Furthermore, a Murphy's drip cup is respectively arranged below the water stopping clips of the infusion tube and the measuring tube, and the Murphy's drip cups are respectively communicated with the infusion tube and the measuring tube.
Further, the Murphy's drip cup includes a puncture injection port for injecting the medicine, and the puncture injection port includes a stopper. When in use, the injector is punctured into the Murphy's dropper from the puncture injection port, so as to inject the medicine.
Further, the blocking plug is a silica gel plug. The silica gel stopper leakproofness is good, and is convenient for puncture.
Further, the puncture injection port is arranged on the upper end face of the Murphy's dropper. This arrangement facilitates operation.
Further, the puncture injection opening is higher than the upper end face of the Murphy's drip cup, and a silica gel cap used for covering the puncture injection opening is arranged. This arrangement prevents contamination of the puncture injection port.
Further, the outer side wall of the measuring tube comprises measuring scale values corresponding to the measuring scale lines. This arrangement facilitates the reading of the measurement by the nurse.
Further, the measurement scale value is not less than 30 cm. The setting can meet the requirements of clinical measurement.
Further, connection structure includes main part, transfer line connector, surveys buret connector and patient connecting pipe connector, transfer line connector, survey buret connector and patient connecting pipe connector and main part body coupling, transfer line connector and transfer line zonulae occludens, survey buret connector and survey buret zonulae occludens, patient connecting pipe connector and patient connecting pipe zonulae occludens.
Further, the inside of main part includes liquid channel, liquid channel and transfer line connector, survey buret connector and patient connecting pipe connector intercommunication.
Further, the length of the patient connecting pipe is larger than the length of the infusion pipe and the measuring pipe.
Further, the connection is located at 2/3 of the overall length of the iv set.
Further, the patient connection tube includes an air filter. This arrangement allows for the filtering of gases within the pipeline.
Further, the air filter is an air filter disc.
Further, the switch structure of the patient connecting pipe is a slidable water stop. The position of the sliding water stop can be flexibly adjusted by the arrangement.
Further, the slidable water stopper is disposed below the air filter.
Furthermore, a connecting interface communicated with a central venous catheter of a patient is arranged at the tail end of the patient connecting tube, and the connecting interface and the patient connecting tube are integrally connected.
Further, the connection interface is a spiral interface. This arrangement is just as connectable to a central venous catheter.
The utility model has the advantages that: the operation preparation objects are few, the required time is short, a nurse only needs to find 0 scale, the transfusion tube with the scale end is held by one hand, and the operation can be completed when the eye stares at the liquid level and descends, so that the workload of the nurse is greatly reduced. Meanwhile, deep veins are usually used for measuring the central venous pressure, and by using the infusion apparatus, a nurse is prevented from repeatedly connecting a three-way infusion connector and repeatedly plugging and unplugging liquid, so that pollution can be reduced, and catheter-related blood flow infection is reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the puncture needle of the present invention;
FIG. 3 is a schematic structural view of the puncture needle and the plug of the present invention;
FIG. 4 is a schematic structural view of the puncture needle and the exhaust hole of the present invention;
FIG. 5 is an enlarged schematic view of the puncture needle with vent holes of the present invention;
FIG. 6 is an enlarged schematic view of the structure of the Murphy drip cup of the present invention with a hole plug on the upper end surface;
FIG. 7 is an enlarged schematic view of the structure of the Murphy drip cup of the present invention with a silica gel cap on the upper end;
FIG. 8 is a partially enlarged view of the measuring tube with graduation marks according to the present invention;
FIG. 9 is a schematic view of a partially enlarged structure of a measuring tube with graduation lines and graduation values according to the present invention;
fig. 10 is a schematic structural view of the puncture needle with a protective cap according to the present invention;
fig. 11 is a schematic sectional view of the connection structure of the present invention;
in the figure, 1, an infusion tube; 2. a measurement tube; 21. measuring scale marks; 22. measuring a scale value; 3. a patient connection tube; 31. an air filter; 32. the water can stop sliding; 33. a screw interface; 4. puncturing needle; 41. an exhaust port; 42. a hole plug; 421. puncturing the injection port; 43. a connecting belt; 44. stopping clamping by water; 45. murphy drip chambers; 451. a silica gel plug; 452. a silica gel cap; 46. a protective cap; 5. a connecting structure; 51. a transfusion tube connector; 52. a measuring pipe connector; 53. a patient connecting tube connector; 54. a liquid passage.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail below with reference to specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the disclosure in the specification. The utility model discloses can also implement or use through other different concrete implementation manners, under the condition of conflict-free, the characteristics in following embodiment and the embodiment can make up each other, based on the embodiment in the utility model, all other embodiments that the ordinary skilled in the art obtained under the prerequisite of not making creative work all belong to the scope of protection of the utility model.
Example 1
The disposable venous transfusion device for measuring the central venous pressure by the double-head water column method comprises a transfusion tube 1, a measuring tube 2 and a patient connecting tube 3, and is characterized in that the transfusion tube 1, the measuring tube 2 and the patient connecting tube 3 are communicated through a connecting structure 5, and the measuring tube 2 comprises measuring scale marks 21; the upper end of the infusion tube 1 is connected with intravenous drip liquid, and the upper end of the measuring tube 2 is connected with physiological saline; the infusion tube 1, the measuring tube 2 and the patient connecting tube 3 all comprise switch structures for controlling the opening and closing of pipelines. The utility model can save the use of a plurality of transfusion devices and a tee joint during each measurement, and reduce the risk of catheter-related infection caused by repeated connection; meanwhile, the preparation of a CVP measuring scale is omitted, and the time is saved; when the device is used, the measurement can be started only by lowering the bed head and finding out the 0-degree scale, so that the time can be saved, the cost is reduced, the workload is reduced, and meanwhile, the risk of catheter-related blood flow infection caused by repeated replacement of infusion sets, connection of infusion connectors and the like is avoided.
The upper ends of the infusion tube 1 and the measuring tube 2 are respectively provided with a puncture needle 4 which is fixedly connected, the puncture needle 4 of the infusion tube 1 is spliced with intravenous drip liquid, and the puncture needle 4 of the measuring tube 2 is spliced with normal saline.
A protective cap 46 is provided for covering the puncture needle 4, the protective cap 46 being connected to the puncture needle 4 in combination. This arrangement ensures that the needle 4 is sterile.
The switch structures of the infusion tube 1 and the measuring tube 2 are both water stop clips 44. The water stop clamp 44 controls the opening and closing of the infusion tube 1 and the measuring tube 2 respectively.
A water stop clip 44 is respectively arranged below the infusion tube 1 and the puncture needle 4 of the measuring tube 2.
The infusion tube 1 and the measuring tube 2 both comprise Murphy's drip cups. The Murphy's drip cup can play a role in buffering.
A Murphy's drip cup is respectively arranged below the water stop clips 44 of the infusion tube 1 and the measuring tube 2 and is respectively communicated with the infusion tube 1 and the measuring tube 2.
The outer side wall of the measuring tube 2 comprises measuring scale values 22 corresponding to the measuring scale 21. This arrangement facilitates the reading of the measurement by the nurse.
The interior of the main body includes a fluid passage 54, the fluid passage 54 communicating with the infusion tube connector 51, the measurement tube connector 52 and the patient connection tube connector 53.
The patient connection tube 3 comprises an air filter 31. This arrangement allows for the filtering of gases within the pipeline.
The air filter 31 is an air filter tray.
The switch structure of the patient connection tube 3 is a slidable water stopper 32. This arrangement allows for flexible adjustment of the position of the slidable water stop 32.
A slidable water stopper 32 is provided below the air filter 31.
The tail end of the patient connecting pipe 3 is provided with a connecting interface which is communicated with a central venous catheter of a patient, and the connecting interface is integrally connected with the patient connecting pipe 3.
The connection interface is a screw interface 33. This arrangement is just as connectable to a central venous catheter.
Example 2
The disposable venous transfusion device for measuring the central venous pressure by the double-head water column method comprises a transfusion tube 1, a measuring tube 2 and a patient connecting tube 3, and is characterized in that the transfusion tube 1, the measuring tube 2 and the patient connecting tube 3 are communicated through a connecting structure 5, and the measuring tube 2 comprises measuring scale marks 21; the upper end of the infusion tube 1 is connected with intravenous drip liquid, and the upper end of the measuring tube 2 is connected with physiological saline; the infusion tube 1, the measuring tube 2 and the patient connecting tube 3 all comprise switch structures for controlling the opening and closing of pipelines. The utility model can save the use of a plurality of transfusion devices and a tee joint during each measurement, and reduce the risk of catheter-related infection caused by repeated connection; meanwhile, the preparation of a CVP measuring scale is omitted, and the time is saved; when the device is used, the measurement can be started only by lowering the bed head and finding out the 0-degree scale, so that the time can be saved, the cost is reduced, the workload is reduced, and meanwhile, the risk of catheter-related blood flow infection caused by repeated replacement of infusion sets, connection of infusion connectors and the like is avoided.
The upper ends of the infusion tube 1 and the measuring tube 2 are respectively provided with a puncture needle 4 which is fixedly connected, the puncture needle 4 of the infusion tube 1 is spliced with intravenous drip liquid, and the puncture needle 4 of the measuring tube 2 is spliced with normal saline.
The puncture needle 4 includes an exhaust hole.
The exhaust hole is positioned at the bottom of the puncture needle 4.
A hole plug 42 for plugging the vent hole is provided. The vent holes can be opened or closed according to requirements.
The hole plug 42 is connected to the bottom of the puncture needle 4 by a connecting band 43. This arrangement prevents the plug 42 from being lost.
The connecting band 43 is an elastic band. This arrangement is convenient to use.
A protective cap 46 is provided for covering the puncture needle 4, the protective cap 46 being connected to the puncture needle 4 in combination. This arrangement ensures that the needle 4 is sterile.
The switch structures of the infusion tube 1 and the measuring tube 2 are both water stop clips 44. The water stop clamp 44 controls the opening and closing of the infusion tube 1 and the measuring tube 2 respectively.
A water stop clip 44 is respectively arranged below the infusion tube 1 and the puncture needle 4 of the measuring tube 2.
The infusion tube 1 and the measuring tube 2 both comprise Murphy's drip cups. The Murphy's drip cup can play a role in buffering.
A Murphy's drip cup is respectively arranged below the water stop clips 44 of the infusion tube 1 and the measuring tube 2 and is respectively communicated with the infusion tube 1 and the measuring tube 2.
The outer side wall of the measuring tube 2 comprises measuring scale values 22 corresponding to the measuring scale 21. This arrangement facilitates the reading of the measurement by the nurse.
The interior of the main body includes a fluid passage 54, the fluid passage 54 communicating with the infusion tube connector 51, the measurement tube connector 52 and the patient connection tube connector 53.
The patient connection tube 3 comprises an air filter 31. This arrangement allows for the filtering of gases within the pipeline.
The air filter 31 is an air filter tray.
The switch structure of the patient connection tube 3 is a slidable water stopper 32. This arrangement allows for flexible adjustment of the position of the slidable water stop 32.
A slidable water stopper 32 is provided below the air filter 31.
The tail end of the patient connecting pipe 3 is provided with a connecting interface which is communicated with a central venous catheter of a patient, and the connecting interface is integrally connected with the patient connecting pipe 3.
The connection interface is a screw interface 33. This arrangement is just as connectable to a central venous catheter.
Example 3
The disposable venous transfusion device for measuring the central venous pressure by the double-head water column method comprises a transfusion tube 1, a measuring tube 2 and a patient connecting tube 3, and is characterized in that the transfusion tube 1, the measuring tube 2 and the patient connecting tube 3 are communicated through a connecting structure 5, and the measuring tube 2 comprises measuring scale marks 21; the upper end of the infusion tube 1 is connected with intravenous drip liquid, and the upper end of the measuring tube 2 is connected with physiological saline; the infusion tube 1, the measuring tube 2 and the patient connecting tube 3 all comprise switch structures for controlling the opening and closing of pipelines. The utility model can save the use of a plurality of transfusion devices and a tee joint during each measurement, and reduce the risk of catheter-related infection caused by repeated connection; meanwhile, the preparation of a CVP measuring scale is omitted, and the time is saved; when the device is used, the measurement can be started only by lowering the bed head and finding out the 0-degree scale, so that the time can be saved, the cost is reduced, the workload is reduced, and meanwhile, the risk of catheter-related blood flow infection caused by repeated replacement of infusion sets, connection of infusion connectors and the like is avoided.
The upper ends of the infusion tube 1 and the measuring tube 2 are respectively provided with a puncture needle 4 which is fixedly connected, the puncture needle 4 of the infusion tube 1 is spliced with intravenous drip liquid, and the puncture needle 4 of the measuring tube 2 is spliced with normal saline.
The puncture needle 4 includes an exhaust hole.
The exhaust hole is positioned at the bottom of the puncture needle 4.
A hole plug 42 for plugging the vent hole is provided. The vent holes can be opened or closed according to requirements.
The hole plug 42 is connected to the bottom of the puncture needle 4 by a connecting band 43. This arrangement prevents the plug 42 from being lost.
The connecting band 43 is an elastic band. This arrangement is convenient to use.
A protective cap 46 is provided for covering the puncture needle 4, the protective cap 46 being connected to the puncture needle 4 in combination. This arrangement ensures that the needle 4 is sterile.
The switch structures of the infusion tube 1 and the measuring tube 2 are both water stop clips 44. The water stop clamp 44 controls the opening and closing of the infusion tube 1 and the measuring tube 2 respectively.
A water stop clip 44 is respectively arranged below the infusion tube 1 and the puncture needle 4 of the measuring tube 2.
The infusion tube 1 and the measuring tube 2 both comprise Murphy's drip cups. The Murphy's drip cup can play a role in buffering.
A Murphy's drip cup is respectively arranged below the water stop clips 44 of the infusion tube 1 and the measuring tube 2 and is respectively communicated with the infusion tube 1 and the measuring tube 2.
The murphy's drip chamber includes a piercing injection port 421 for injecting the medicine, and the piercing injection port 421 includes a stopper. In use, the syringe is inserted into the Murphy's dropper from the insertion port 421, thereby injecting the medicine.
The sealing plug is a silicone plug 451. The silica gel plug 451 has good sealing performance and is convenient for puncture.
The puncture injection port 421 is provided on the upper end surface of the Murphy's dropper. This arrangement facilitates operation.
The puncture injection port 421 is higher than the upper end surface of the Murphy's dropper, and a silica gel cap 452 for covering the puncture injection port 421 is provided. This arrangement prevents the puncture inlet 421 from being contaminated.
The outer side wall of the measuring tube 2 comprises measuring scale values 22 corresponding to the measuring scale 21. This arrangement facilitates the reading of the measurement by the nurse.
The interior of the main body includes a fluid passage 54, the fluid passage 54 communicating with the infusion tube connector 51, the measurement tube connector 52 and the patient connection tube connector 53.
The patient connection tube 3 comprises an air filter 31. This arrangement allows for the filtering of gases within the pipeline.
The air filter 31 is an air filter tray.
The switch structure of the patient connection tube 3 is a slidable water stopper 32. This arrangement allows for flexible adjustment of the position of the slidable water stop 32.
A slidable water stopper 32 is provided below the air filter 31.
The tail end of the patient connecting pipe 3 is provided with a connecting interface which is communicated with a central venous catheter of a patient, and the connecting interface is integrally connected with the patient connecting pipe 3.
The connection interface is a screw interface 33. This arrangement is just as connectable to a central venous catheter.
Example 4
The disposable venous transfusion device for measuring the central venous pressure by the double-head water column method comprises a transfusion tube 1, a measuring tube 2 and a patient connecting tube 3, and is characterized in that the transfusion tube 1, the measuring tube 2 and the patient connecting tube 3 are communicated through a connecting structure 5, and the measuring tube 2 comprises measuring scale marks 21; the upper end of the infusion tube 1 is connected with intravenous drip liquid, and the upper end of the measuring tube 2 is connected with physiological saline; the infusion tube 1, the measuring tube 2 and the patient connecting tube 3 all comprise switch structures for controlling the opening and closing of pipelines. The utility model can save the use of a plurality of transfusion devices and a tee joint during each measurement, and reduce the risk of catheter-related infection caused by repeated connection; meanwhile, the preparation of a CVP measuring scale is omitted, and the time is saved; when the device is used, the measurement can be started only by lowering the bed head and finding out the 0-degree scale, so that the time can be saved, the cost is reduced, the workload is reduced, and meanwhile, the risk of catheter-related blood flow infection caused by repeated replacement of infusion sets, connection of infusion connectors and the like is avoided.
The upper ends of the infusion tube 1 and the measuring tube 2 are respectively provided with a puncture needle 4 which is fixedly connected, the puncture needle 4 of the infusion tube 1 is spliced with intravenous drip liquid, and the puncture needle 4 of the measuring tube 2 is spliced with normal saline.
The puncture needle 4 includes an exhaust hole.
The exhaust hole is positioned at the bottom of the puncture needle 4.
A hole plug 42 for plugging the vent hole is provided. The vent holes can be opened or closed according to requirements.
The hole plug 42 is connected to the bottom of the puncture needle 4 by a connecting band 43. This arrangement prevents the plug 42 from being lost.
The connecting band 43 is an elastic band. This arrangement is convenient to use.
A protective cap 46 is provided for covering the puncture needle 4, the protective cap 46 being connected to the puncture needle 4 in combination. This arrangement ensures that the needle 4 is sterile.
The switch structures of the infusion tube 1 and the measuring tube 2 are both water stop clips 44. The water stop clamp 44 controls the opening and closing of the infusion tube 1 and the measuring tube 2 respectively.
A water stop clip 44 is respectively arranged below the infusion tube 1 and the puncture needle 4 of the measuring tube 2.
The infusion tube 1 and the measuring tube 2 both comprise Murphy's drip cups. The Murphy's drip cup can play a role in buffering.
A Murphy's drip cup is respectively arranged below the water stop clips 44 of the infusion tube 1 and the measuring tube 2 and is respectively communicated with the infusion tube 1 and the measuring tube 2.
The murphy's drip chamber includes a piercing injection port 421 for injecting the medicine, and the piercing injection port 421 includes a stopper. In use, the syringe is inserted into the Murphy's dropper from the insertion port 421, thereby injecting the medicine.
The sealing plug is a silicone plug 451. The silica gel plug 451 has good sealing performance and is convenient for puncture.
The puncture injection port 421 is provided on the upper end surface of the Murphy's dropper. This arrangement facilitates operation.
The puncture injection port 421 is higher than the upper end surface of the Murphy's dropper, and a silica gel cap 452 for covering the puncture injection port 421 is provided. This arrangement prevents the puncture inlet 421 from being contaminated.
The outer side wall of the measuring tube 2 comprises measuring scale values 22 corresponding to the measuring scale 21. This arrangement facilitates the reading of the measurement by the nurse.
The measurement scale value 22 is not less than 30 cm. The setting can meet the requirements of clinical measurement.
The interior of the main body includes a fluid passage 54, the fluid passage 54 communicating with the infusion tube connector 51, the measurement tube connector 52 and the patient connection tube connector 53.
The length of the patient connecting tube 3 is longer than the length of the infusion tube 1 and the measuring tube 2.
The connection 5 is located at 2/3 of the overall length of the iv set.
The patient connection tube 3 comprises an air filter 31. This arrangement allows for the filtering of gases within the pipeline.
The air filter 31 is an air filter tray.
The switch structure of the patient connection tube 3 is a slidable water stopper 32. This arrangement allows for flexible adjustment of the position of the slidable water stop 32.
A slidable water stopper 32 is provided below the air filter 31.
The tail end of the patient connecting pipe 3 is provided with a connecting interface which is communicated with a central venous catheter of a patient, and the connecting interface is integrally connected with the patient connecting pipe 3.
The connection interface is a screw interface 33. This arrangement is just as connectable to a central venous catheter.
The utility model discloses a use method: when measuring CVP, with the transfer line clip closed, open the water that has graduated survey buret and end the clamp, straighten the vertical portion of survey buret, the patient lies flat, adjusts the position of survey buret, and the scale initial point of survey buret flushes with right atrium position between patient's armpit central line fourth rib promptly, reads the numerical value after surveying buret is stable, and this numerical value is exactly patient's CVP.
The above description of the embodiments is only intended to illustrate the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several modifications can be made to the present invention, and these modifications will fall within the protection scope of the claims of the present invention.
Claims (10)
1. The disposable venous transfusion device for measuring the central venous pressure by the double-head water column method comprises a transfusion pipe, a measuring pipe and a patient connecting pipe, and is characterized in that the transfusion pipe, the measuring pipe and the patient connecting pipe are communicated through a connecting structure, and the measuring pipe comprises measuring scale marks; the upper end of the infusion tube is connected with intravenous drip liquid, and the upper end of the measuring tube is connected with physiological saline; the infusion tube, the measuring tube and the patient connecting tube all comprise switch structures for controlling the opening and closing of the pipelines.
2. The disposable venous transfusion system for central venous pressure measurement by the double-headed water column method according to claim 1, wherein the upper ends of the transfusion tube and the measuring tube are respectively provided with a fixedly connected puncture needle, the puncture needle of the transfusion tube is spliced with the intravenous drip liquid, and the puncture needle of the measuring tube is spliced with the normal saline.
3. The disposable venous infusion set for double-headed water column based central venous pressure measurement of claim 2, wherein the puncture needle comprises a vent hole.
4. A disposable venous transfusion system for central venous pressure measurement of double-headed water column method according to claim 3, characterized in that a hole plug for plugging the vent hole is provided.
5. A disposable double-ended water column method central venous pressure measuring venous infusion set as in claim 4, wherein the infusion tube and the measurement tube each comprise a Murphy's dropper.
6. The disposable intravenous infusion set for central venous pressure measurement by the double-headed water column method according to claim 5, wherein said Murphy's dropper comprises a puncture inlet for injecting medication, the puncture inlet comprising a stopper.
7. The disposable double-head water column method central venous pressure measuring venous transfusion system according to any one of claims 1-6, wherein the connecting structure comprises a main body, a transfusion tube connector, a measuring tube connector and a patient connecting tube connector, the transfusion tube connector, the measuring tube connector and the patient connecting tube connector are integrally connected with the main body, the transfusion tube connector is tightly connected with the transfusion tube, the measuring tube connector is tightly connected with the measuring tube, and the patient connecting tube connector is tightly connected with the patient connecting tube.
8. The disposable double-headed water column method central venous pressure measuring venous transfusion system according to claim 7, wherein the interior of the main body comprises a liquid passage which communicates with the transfusion tube connector, the measuring tube connector and the patient connecting tube connector.
9. A disposable dual-headed water column based central venous pressure measuring iv set according to claim 8 wherein the patient connection tubing includes an air filter.
10. The disposable venous transfusion system for central venous pressure measurement by the double-headed water column method according to claim 9, wherein a connection interface for communicating with a central venous indwelling catheter of a patient is provided at the end of the patient connection catheter, and the connection interface is integrally connected with the patient connection catheter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120551855.9U CN215023821U (en) | 2021-03-17 | 2021-03-17 | Disposable venous transfusion device for central venous pressure measurement by double-head water column method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120551855.9U CN215023821U (en) | 2021-03-17 | 2021-03-17 | Disposable venous transfusion device for central venous pressure measurement by double-head water column method |
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| Publication Number | Publication Date |
|---|---|
| CN215023821U true CN215023821U (en) | 2021-12-07 |
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|---|---|---|---|
| CN202120551855.9U Expired - Fee Related CN215023821U (en) | 2021-03-17 | 2021-03-17 | Disposable venous transfusion device for central venous pressure measurement by double-head water column method |
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| Country | Link |
|---|---|
| CN (1) | CN215023821U (en) |
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2021
- 2021-03-17 CN CN202120551855.9U patent/CN215023821U/en not_active Expired - Fee Related
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Granted publication date: 20211207 |