Pipeline connection device, handheld continuous perfusion device and system

Abstract

The utility model discloses a pipeline connection device, a handheld continuous perfusion device and a system. The handheld continuous perfusion device includes a housing, a manual crank, a reciprocating mechanism, a piston injection device, and a one-way valve. Each piston injection device includes an injection water inlet and an injection water outlet. The pipeline connection device is arranged inside the housing. The pipeline connection device includes a mounting base, a water outlet pipeline, a water inlet pipeline, and a water outlet pressure gauge interface. The water outlet pipeline includes a device liquid outlet and a water outlet confluence port. The water outlet confluence port is connected to the device liquid outlet and the water outlet pressure gauge interface, and the water outlet confluence port is connected to the injection water outlet. The water inlet pipeline includes a device liquid inlet and a water inlet shunt port. All water inlet shunt ports are connected by the water inlet pipeline. The water inlet shunt port is connected to the device liquid inlet, and the water inlet shunt port is connected to the injection water inlet. The utility model can simplify the internal structure of the handheld perfusion device, facilitate pipeline routing and installation, and provide conditions for reducing the size of the handheld device.

Description

Technical Field

[0001] The utility model relates to a pipeline connecting device, a handheld continuous perfusion device and a system. Background Art

[0002] Urinary stones are a common and frequently occurring disease in urology, accounting for the largest proportion of inpatients in this department. The incidence of urinary stones in my country is 1% to 5%, with rates as high as 5% to 10% in southern China. The annual incidence rate is approximately 150 to 200 new cases per 100,000 people, with 25% of patients requiring hospitalization.

[0003] With advances in technology and the development of medical devices, urinary stones are currently primarily treated with minimally invasive laser treatment using an endoscopic approach. However, this procedure often requires continuous injection of saline along the endoscopic instrument channel to maintain a clear field of view and dissipate the heat generated by the laser lithotripsy. Despite being a minimally invasive procedure, it still carries numerous risks.

[0004] Because the kidneys are blind, intraoperative perfusion of saline can easily lead to high renal pelvic pressure, which can cause bacteria to enter the bloodstream from the kidneys, leading to bacteremia and, in severe cases, life-threatening urosepsis. Therefore, intraoperative monitoring of perfusion pressure and renal pelvic pressure is urgently needed, but currently there is no effective noninvasive monitoring method.

[0005] Currently, there are two main ways to administer saline during surgery. One is manual injection with a syringe, which has the following disadvantages: 1) After the injection is completed, a 50ml syringe must be used to draw out saline before it can be used again, resulting in a pause in the middle, forcing the operation to be stopped, affecting medical safety; 2) Because it takes a long time, often 1-2 hours, or even 3 hours, to inject saline with a manual syringe, it seriously consumes the doctor's physical strength and affects the successive surgeries. 3) There is no pressure measuring device, and the perfusion pressure and renal pelvic pressure cannot be understood in real time, which poses a risk of urinary tract bacteremia. 4) Manually pushing the syringe for a long time can easily cause fatigue, resulting in inconsistent water injection pressure, which leads to unstable water injection pressure during surgery and affects lithotripsy efficiency.

[0006] The second type is medical perfusion pumps. Their drawbacks are: 1) They are expensive, costing hundreds of thousands of yuan each, making them difficult for some hospitals to purchase, or they can afford only one. Because urinary stones are a common and frequently occurring disease, a hospital often uses multiple endoscopic laser lithotripsy machines daily, which is difficult to meet daily needs. 2) Once the perfusion pump water pressure is set, any intraoperative fine-tuning requires pausing the procedure, making it impossible to dynamically adjust according to actual needs. 3) Without a pressure measuring device, the perfusion pressure and renal pelvic pressure cannot be monitored in real time, posing a risk of urinary bacteremia.

[0007] See the instructions attached Figure 4In the prior art, a handheld continuous perfusion device is provided, with an invention patent application number of 202410275042X. The defects of this handheld continuous perfusion device are that the internal structure of the handheld perfusion device is complex, the wiring and installation of the pipeline are difficult, and the production cost is high. Utility Model Content

[0008] The technical problem to be solved by the present invention is to overcome the defects of the handheld perfusion device in the prior art, such as the complex internal structure, difficult pipeline routing and installation, and high production cost, and to provide a pipeline connection device, a handheld continuous perfusion device and a system that can simplify the internal structure of the handheld perfusion device, facilitate pipeline routing and installation, and provide conditions for reducing the size of the handheld device.

[0009] The utility model solves the above technical problems through the following technical solutions:

[0010] A pipe connection device for a handheld continuous injection device, characterized in that the handheld continuous injection device includes a housing, a manual crank handle, a reciprocating mechanism, at least two piston-type injection devices, and a plurality of one-way valves, each piston-type injection device including an injection water inlet and an injection water outlet;

[0011] The pipe connection device is arranged inside the housing, and the pipe connection device includes a mounting base, a water outlet pipe, a water inlet pipe and a water outlet pressure gauge interface;

[0012] The water outlet pipeline includes a device liquid outlet and a plurality of water outlet confluences, all of which are connected by the mounting base, and the water outlet confluences are connected to the device liquid outlet and the water outlet pressure gauge interface, and each water outlet confluence is connected to a corresponding injection outlet;

[0013] The water inlet pipe is fixed on the mounting base, and includes a device liquid inlet and a water inlet shunt port. All water inlet shunt ports are connected by the water inlet pipe. The number of water inlet shunt ports and water outlet confluence ports is the same as the number of piston-type injection devices. The water inlet shunt port is connected to the device liquid inlet, and each water inlet shunt port is connected to an injection water inlet.

[0014] Preferably, there are two piston-type injection devices, and the pipeline connecting device includes a left branch and a right branch. The left branch is provided with a water outlet confluence and the liquid outlet of the device, and the right branch includes another water outlet confluence. The water inlet pipeline is fixed on the outside of the right branch, and the top of the pipeline connecting device is provided with the water outlet pressure gauge interface connected to the water outlet confluence.

[0015] Preferably, the water outlet confluence ports of the left branch and the right branch are connected in the mounting base.

[0016] Preferably, the water outlet pressure gauge interface is connected to the water outlet confluence port in the mounting base.

[0017] Preferably, the device liquid outlet is provided with a first mounting thread connected to the liquid outlet pipe, the device liquid inlet is provided with a second mounting thread connected to the liquid inlet pipe, and the device liquid outlet and the device liquid inlet extend to the outside of the shell.

[0018] Preferably, a third mounting thread connected to the injection water outlet pipe is provided on the water outlet confluence on the left branch, and a fourth mounting thread connected to the injection water outlet pipe is provided on the water outlet confluence on the right branch.

[0019] Preferably, the water inlets and outlets of the two piston-type injection devices are arranged oppositely, the water inlets and outlets are connected to the injection water inlet and the injection water outlet, each injection cylinder is provided with a piston, and the two pistons are connected to each other through a reciprocating mechanism;

[0020] The two water inlets and outlets are respectively connected to the liquid inlet of the device through a one-way valve, and the one-way valve between the water inlet and outlet and the liquid inlet of the device conducts the fluid from the liquid inlet of the device to the water inlet and outlet. The two water inlets and outlets are respectively connected to the liquid outlet of the device through a one-way valve, and the one-way valve between the water inlet and outlet and the liquid outlet of the device conducts the fluid from the water inlet and outlet to the liquid outlet of the device;

[0021] When the manual crank is rotated, the two pistons are driven to reciprocate in the syringe through the reciprocating mechanism.

[0022] Preferably, the reciprocating mechanism includes a reciprocating screw and a guide crescent pin, and when the manual crank is rotated, the reciprocating screw drives the two pistons to reciprocate in the injection cylinder respectively.

[0023] The present invention also provides a handheld continuous perfusion device, which is characterized in that the handheld continuous perfusion device includes the pipeline connecting device for the handheld continuous perfusion device as described above.

[0024] The present invention also provides a ureteroscope multifunctional sheath system, which is characterized in that the ureteroscope multifunctional sheath system includes the handheld continuous perfusion device and the ureteroscope multifunctional sheath as described above, the ureteroscope multifunctional sheath includes an outer sheath and a sheath core, the outer sheath includes an outer sheath water inlet, and the device liquid outlet of the handheld continuous perfusion device is connected to the outer sheath water inlet.

[0025] On the basis of conforming to the common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0026] The positive progress effect of this utility model is:

[0027] The utility model can simplify the internal structure of the handheld perfusion device, facilitate the routing and installation of pipelines, and provide conditions for reducing the size of the handheld device.

[0028] The utility model can continuously inlet and outlet water, facilitates timely and dynamic adjustment of perfusion volume and perfusion pressure during surgery, monitors perfusion pressure and renal pelvis pressure in real time to improve surgical safety, and has a compact structure and is easy to grasp. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a structural schematic diagram of the handheld continuous perfusion device of Example 1 of the present utility model.

[0030] Figure 2 This is a structural schematic diagram of the pipeline connection device of Example 1 of the present utility model.

[0031] Figure 3 This is another structural schematic diagram of the pipeline connection device of Example 1 of the present utility model.

[0032] Figure 4 It is a structural schematic diagram of a handheld continuous perfusion device in the prior art. DETAILED DESCRIPTION

[0033] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0034] Example 1

[0035] In this embodiment, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating positions or locations, are based on the positions or locations shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] This embodiment provides a multifunctional sheath system for a ureteroscope, which includes a handheld continuous perfusion device and a multifunctional sheath for a ureteroscope.

[0037] The multifunctional sheath of the ureteroscope comprises an outer sheath and a sheath core. The outer sheath comprises an outer sheath water inlet. The device outlet of the handheld continuous perfusion device is connected to the outer sheath water inlet.

[0038] See also Figures 1 to 3This embodiment provides a handheld continuous perfusion device, which includes a housing, a pipe connection device, a manual crank, a reciprocating mechanism, two piston-type injection devices 100, four one-way valves 101, a device liquid inlet 102, and a device liquid outlet 103;

[0039] Each piston-type injection device 100 includes an injection water inlet 1001 , an injection water outlet 1002 , a piston 1003 and a syringe 1004 .

[0040] Each syringe is provided with a piston 1003, and the two pistons 1003 are connected to each other via a reciprocating screw 104 in a reciprocating mechanism;

[0041] The water inlets and outlets 1005 of the two piston-type injection devices 100 are arranged opposite to each other, and the water inlets and outlets 1005 are connected to the injection water inlet 1001 and the injection water outlet 1002 .

[0042] The two water inlets and outlets 1005 are connected to the liquid inlet 102 of the device through a one-way valve 101 respectively.

[0043] The one-way valve between the water inlet and outlet 1005 and the device liquid inlet 102 conducts the fluid from the device liquid inlet 102 to the water inlet and outlet 1005 (the reverse direction is prohibited).

[0044] The two water inlets and outlets 100 are respectively connected to the liquid outlet 103 of the device via a one-way valve.

[0045] The one-way valve between the water inlet and outlet 1005 and the device liquid outlet 103 conducts the fluid from the water inlet and outlet 1005 to the device liquid outlet 103 (the reverse direction is prohibited);

[0046] Specifically, the injection water inlet 1001 communicating with the water inlet and outlet is connected to the device liquid inlet 102 via a one-way valve, and the one-way valve conducts the fluid from the device liquid inlet 102 to the injection water inlet 1001 (the reverse direction is prohibited).

[0047] The injection outlet 1002 communicating with the water inlet and outlet is connected to the device liquid outlet 103 via a one-way valve. The one-way valve conducts the fluid from the injection outlet 1002 to the device liquid outlet 103 (the reverse direction is prohibited).

[0048] When the manual crank is rotated, the two pistons are driven to reciprocate in the syringe through the reciprocating mechanism.

[0049] The reciprocating mechanism includes a reciprocating screw and a guide crescent pin. When the manual crank is rotated, the reciprocating screw drives the two pistons to reciprocate in the injection cylinder respectively.

[0050] The pipeline connecting device is arranged inside the shell.

[0051] The pipe connection device includes a mounting base 106, a water outlet pipe 107, a water inlet pipe 108 and a water outlet pressure gauge interface 109;

[0052] The water outlet pipeline 107 includes a device liquid outlet 103 and a plurality of water outlet confluence ports 1072 . In this embodiment, the number of the water outlet confluence ports is two.

[0053] All the water outlet confluence ports 1072 are connected via the mounting base 106 .

[0054] The water outlet confluence port 1072 is connected to the device liquid outlet 103 and the water outlet pressure gauge interface 109, and each water outlet confluence port 1072 is connected to a corresponding injection water outlet 1002;

[0055] The water outlet pressure gauge interface is used to install a water pressure gauge.

[0056] The water inlet pipe 108 is fixed on the mounting base 106 .

[0057] The water inlet pipeline 108 includes the device liquid inlet 102 and a water inlet diversion port 1081 .

[0058] All water inlet diversion ports 1081 are connected via the water inlet pipeline 108 .

[0059] The number of the water inlet diversion ports 1081 and the water outlet confluence ports 1072 is the same as the number of the piston injection devices.

[0060] The water inlet shunt port 1081 is connected to the device liquid inlet 102 , and each water inlet shunt port 1081 is correspondingly connected to an injection water inlet 1001 .

[0061] The number of the piston-type injection devices is two.

[0062] The pipe connection device includes a left branch 110 and a right branch 111 .

[0063] The left branch 110 is provided with a water outlet confluence port 1072 and the device liquid outlet 103 .

[0064] The right branch 111 includes another water outlet confluence port 1072 . The water inlet pipe 108 is fixed to the outside of the right branch 111 , and there is no conduction between the right branch and the water inlet pipe.

[0065] The top of the pipeline connecting device is provided with the water outlet pressure gauge interface which is connected with the water outlet confluence port.

[0066] The water outlet confluence ports of the left branch and the right branch are connected in the installation base.

[0067] The water outlet pressure gauge interface is connected to the water outlet confluence port in the installation base.

[0068] The liquid outlet of the device is provided with a first mounting thread connected to the liquid outlet pipe.

[0069] The liquid inlet of the device is provided with a second mounting thread connected to the liquid inlet pipe.

[0070] The device liquid outlet and the device liquid inlet extend to the outside of the shell.

[0071] A third mounting thread connected to the injection water outlet pipe is provided on the water outlet confluence on the left branch, and a fourth mounting thread connected to the injection water outlet pipe is provided on the water outlet confluence on the right branch.

[0072] This embodiment can simplify the internal structure of the handheld perfusion device, facilitate pipeline routing and installation, and provide conditions for reducing the size of the handheld device.

[0073] This embodiment can continuously inflow and outflow water, facilitate timely and dynamic adjustment of perfusion volume and perfusion pressure during surgery, and monitor perfusion pressure and renal pelvis pressure in real time to improve surgical safety. The structure is compact and easy to grasp.

[0074] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A pipe connection device for a handheld continuous perfusion device, characterized in that: The handheld continuous injection device comprises a housing, a manual crank, a reciprocating mechanism, at least two piston injection devices, and a plurality of one-way valves, wherein each piston injection device comprises an injection water inlet and an injection water outlet; The pipeline connection device is arranged inside the housing, and the pipeline connection device includes a mounting base, a water outlet pipeline, a water inlet pipeline and a water outlet pressure gauge interface; The water outlet pipeline includes a device liquid outlet and a plurality of water outlet confluence ports, all of which are connected by the mounting base, the water outlet confluence ports are connected with the device liquid outlet and the water outlet pressure gauge interface, and each water outlet confluence port is connected to a corresponding injection water outlet; The water inlet pipeline is fixed on the mounting base, and includes a device liquid inlet and a water inlet branch port. All water inlet branch ports are connected by the water inlet pipeline, and the water inlet branch ports are connected to the device liquid inlet, and each water inlet branch port is correspondingly connected to an injection water inlet.

2. The pipeline connection device for a handheld continuous perfusion device according to claim 1, characterized in that: There are two piston-type injection devices, and the pipeline connecting device includes a left branch and a right branch. The left branch is provided with a water outlet confluence and the liquid outlet of the device, and the right branch includes another water outlet confluence. The water inlet pipeline is fixed on the outside of the right branch, and the top of the pipeline connecting device is provided with the water outlet pressure gauge interface connected to the water outlet confluence.

3. The pipeline connection device for a handheld continuous perfusion device according to claim 2, characterized in that: The water outlet confluence ports of the left branch and the right branch are connected in the installation base.

4. The pipeline connection device for a handheld continuous perfusion device according to claim 3, characterized in that: The water outlet pressure gauge interface is connected to the water outlet confluence port in the mounting base.

5. The pipeline connection device for a handheld continuous perfusion device according to claim 2, characterized in that: The device liquid outlet is provided with a first mounting thread connected to the liquid outlet pipe, the device liquid inlet is provided with a second mounting thread connected to the liquid inlet pipe, and the device liquid outlet and the device liquid inlet extend to the outside of the shell.

6. The pipeline connection device for a handheld continuous perfusion device according to claim 2, characterized in that: A third mounting thread connected to the injection water outlet pipe is provided on the water outlet confluence on the left branch, and a fourth mounting thread connected to the injection water outlet pipe is provided on the water outlet confluence on the right branch.

7. The pipeline connection device for a handheld continuous perfusion device according to claim 2, characterized in that: The water inlets and outlets of the two piston-type injection devices are arranged oppositely, the water inlets and outlets are connected to the injection water inlet and the injection water outlet, each injection cylinder is provided with a piston, and the two pistons are connected to each other through a reciprocating mechanism; The two water inlets and outlets are respectively connected to the liquid inlet of the device through a one-way valve, and the one-way valve between the water inlet and outlet and the liquid inlet of the device conducts the fluid from the liquid inlet of the device to the water inlet and outlet. The two water inlets and outlets are respectively connected to the liquid outlet of the device through a one-way valve, and the one-way valve between the water inlet and outlet and the liquid outlet of the device conducts the fluid from the water inlet and outlet to the liquid outlet of the device. When the manual crank is rotated, the two pistons are driven to reciprocate in the injection cylinder through the reciprocating mechanism.

8. The pipeline connection device for a handheld continuous perfusion device according to claim 7, characterized in that: The reciprocating mechanism comprises a reciprocating screw and a guide crescent pin. When the manual crank is rotated, the reciprocating screw drives the two pistons to reciprocate in the injection cylinder respectively.

9. A handheld continuous infusion device, characterized in that: The handheld continuous perfusion device comprises a pipeline connection device for a handheld continuous perfusion device as claimed in any one of claims 1 to 8.

10. A multifunctional sheath system for ureteroscope, characterized in that: The ureteroscope multifunctional sheath system includes the handheld continuous perfusion device as described in claim 9 and the ureteroscope multifunctional sheath, wherein the ureteroscope multifunctional sheath includes an outer sheath and a sheath core, wherein the outer sheath includes an outer sheath water inlet, and the device outlet of the handheld continuous perfusion device is connected to the outer sheath water inlet.

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