Pen holding type electric washing gun

By designing the detachable irrigation connector and inner sleeve structure of the pen-type electric irrigation gun, the problem of residual irrigation fluid and waste tissue during spinal surgery is solved, achieving a thorough irrigation effect and reducing postoperative complications.

CN223416512UActive Publication Date: 2025-10-10白军军
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Patent Information

Application Number
CN202422247246.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-13
Publication Date
2025-10-10
Estimated Expiration
2034-09-13

AI Technical Summary

Technical Problem

Existing medical electric irrigation guns are difficult to achieve thorough irrigation during spinal surgery, resulting in residual irrigation fluid and waste tissue, increasing the risk of postoperative complications, especially in spinal tumors, spinal infections and spinal revision surgeries.

Method used

A pen-type electric flushing gun is designed, which adopts a detachable flushing connector, an inner sleeve and an outer sleeve structure, combined with a water inlet pump and a negative pressure device to achieve unified operation of flushing and adsorption. The inner sleeve is used to suck out the residual liquid after thorough flushing.

Benefits of technology

A thorough flushing effect is achieved, local residues after surgery are avoided, and the patient's pain and the occurrence of postoperative complications are reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of medical instruments, in particular to a pen holding type electric flushing gun which is provided with a pipe body, a water inlet pipe, a water outlet pipe and a water inlet pump are respectively arranged in the pipe body, and the front ends of the water inlet pipe and the water outlet pipe respectively extend to the closed end face of the front end of the pipe body. The water inlet pipe is connected with a water inlet pump in the pipe body and then extends out of the pipe body to be connected with an external water source, a detachable flushing connector is arranged at the front end of the pipe body and comprises an outer sleeve and an inner sleeve, the front end of the outer sleeve is open and is in supporting connection with the outer wall of the inner sleeve through a connecting rod, and the rear end of the outer sleeve is connected with a sealing plate. A water inlet hole and a water outlet hole are symmetrically formed in the sealing plate, the water outlet hole is communicated with the outer sleeve, the front end of the inner sleeve extends out of the outer sleeve, and the rear end of the inner sleeve extends to the water outlet of the sealing plate of the outer sleeve. The device has the advantages that the structure is simple, the flushing effect is good, local residual flushing fluid and waste tissue residues after an operation are avoided, the pain of a patient is reduced, and postoperative complications are reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a pen-type electric flushing gun with a simple structure and good flushing effect, which can avoid residual flushing fluid and waste tissue after surgery, reduce patient pain, and reduce the occurrence of postoperative complications. Background Art

[0002] With advances in medical diagnostics and treatment, and an increase in spinal tumors, spinal infections, and spinal revision surgeries, there is a need for thorough intraoperative wound irrigation, a requirement currently difficult to achieve with current equipment. Medical electric irrigation guns are currently used in various joint replacement procedures, such as hip and knee replacements, significantly reducing the incidence of postoperative infection. However, both spinal tumor and spinal infection surgeries require postoperative wound irrigation. Due to the unique anatomical structure of the spine, and the risk of secondary spinal cord injury, traditional irrigation methods, such as pouring water, fail to achieve thorough intraoperative irrigation. Existing medical electric irrigation guns typically utilize two separate instruments for irrigation and aspiration, adsorbing residual fluid and tissue while simultaneously flushing. Some instruments combine irrigation and aspiration into a single instrument, but simply place the aspiration and irrigation lines side by side. This results in the aspiration line aspirating the irrigation fluid before it can even begin to flush. This results in poor irrigation effectiveness and residual tissue fluid. Given the inherent risks of spinal tumor, spinal infection, and spinal revision surgeries, thorough intraoperative irrigation can reduce postoperative complications and alleviate patient suffering. Therefore, thorough flushing after spinal surgery is particularly critical. Summary of the Invention

[0003] The purpose of the utility model is to solve the deficiencies of the above-mentioned prior art and to provide a pen-type electric flushing gun with a simple structure, good flushing effect, avoiding local residual flushing fluid and waste tissue residue after surgery, reducing patient pain, and reducing the occurrence of postoperative complications.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A pen-type electric flushing gun is provided with a tube body, wherein a water inlet pipe, a water outlet pipe and a water inlet pump are respectively provided inside the tube body, the front ends of the water inlet pipe and the water outlet pipe respectively extend to the front closed end surface of the tube body, the water inlet pipe is connected to the water inlet pump in the tube body and then extends out of the tube body to be connected to an external water source, the rear end of the water outlet pipe extends out of the tube body and is connected to a negative pressure device, the front end of the tube body is provided with a detachable flushing connector, the flushing connector includes an outer sleeve and an inner sleeve, the front end of the outer sleeve is open and is supported and connected to the outer wall of the inner sleeve through a connecting rod, and the rear end of the outer sleeve is connected to the sealed end surface. The closed plate has water inlet holes and water outlet holes symmetrically arranged on the closed plate corresponding to the water inlet pipe and water outlet pipe at the front closed end face of the tube body. The water outlet hole is connected to the outer sleeve. The front end of the inner sleeve extends out of the outer sleeve, and the rear end of the inner sleeve extends to the water outlet hole position of the closing plate of the outer sleeve and is connected to the water outlet hole. The rear end of the outer sleeve is provided with a disassembly sleeve, one end of the disassembly sleeve is fixedly connected to the rear end of the outer sleeve, and the other end of the disassembly sleeve is sleeved on the front end of the tube body. After the disassembly sleeve is sleeved on the tube body, the water inlet pipe is connected to the water inlet hole, and the water outlet pipe is connected to the water outlet hole to realize the conduction between the water inlet pipe and the inner sleeve, and the water outlet pipe and the outer sleeve.

[0006] The tube body of the utility model is provided with a pump controller, a battery and a switch, the switch is fixed on the outer wall of the tube body, the pump controller and the battery are fixed on the inner wall of the tube body, the pump controller is electrically connected to the water inlet pump, and the pump controller is connected to the switch and the battery via a wire.

[0007] The inner wall of the disassembly sleeve of the utility model is provided with a clamping annular groove, and the outer wall of the tube body is provided with a clamping annular protrusion corresponding to the position of the clamping annular groove. The disassembly sleeve is detachably connected to the tube body through the clamping annular groove and the clamping annular protrusion.

[0008] The front end surface of the pipe body of the utility model is respectively provided with a water inlet pipe and a water outlet pipe, the water inlet pipe is connected to the water inlet pipe, the water outlet pipe is connected to the water outlet pipe, the water inlet pipe is inserted into the water inlet hole, and the water outlet pipe is inserted into the water outlet hole.

[0009] The inner wall of the disassembly sleeve described in the utility model is provided with a conversion annular groove, which is arranged on the rear side of the clamping annular groove. The conversion annular groove is engaged with the clamping annular protrusion. When the conversion annular protrusion is engaged with the conversion annular groove, the water inlet pipe and the water outlet pipe are separated from the water inlet hole and the water outlet hole on the closing plate.

[0010] The inner sleeve of the utility model extends out of the end portion of the outer sleeve to a length of 6 cm and a diameter of 3 mm to 5 mm.

[0011] The front end of the inner sleeve of the utility model is provided with a bending portion, the bending angle is 30 degrees, and the length of the bending portion is 1 cm.

[0012] The outer wall of the tube body described in the utility model is provided with a first mark indicating that the water inlet pipe is connected to the inner sleeve, and the water outlet pipe is connected to the outer sleeve. The outer wall is also provided with a second mark indicating that the water inlet pipe is connected to the outer sleeve, and the water outlet pipe is connected to the inner sleeve. A corresponding mark is provided on the disassembled sleeve. When the corresponding mark on the disassembled sleeve is rotated to the first mark position, it indicates that the water inlet pipe is connected to the inner sleeve, and the water outlet pipe is connected to the outer sleeve. When the corresponding mark on the disassembled sleeve is rotated to the second mark position, it indicates that the water inlet pipe is connected to the outer sleeve, and the water outlet pipe is connected to the inner sleeve.

[0013] Due to the adoption of the above structure, the utility model has the advantages of simple structure, good flushing effect, avoiding local residual flushing fluid and waste tissue after surgery, reducing patient pain, and reducing the occurrence of postoperative complications. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] Figure 2 yes Figure 1 sectional view of .

[0016] Figure 3 yes Figure 2 A partial enlarged view of part A in the middle.

[0017] Figure 4 yes Figure 1 A partial enlarged view of the curved portion at the front end of the inner sleeve. DETAILED DESCRIPTION

[0018] The present invention is further described below with reference to the accompanying drawings:

[0019] As shown in the accompanying drawings, a pen-type electric flushing gun is provided with a tube body 1, and the interior of the tube body 1 is respectively provided with an inlet pipe 2, an outlet pipe 3, and a water inlet pump 4. The front ends of the water inlet pipe 2 and the outlet pipe 3 respectively extend to the front closed end surface of the tube body 1. After the water inlet pipe 2 is connected to the water inlet pump 4 in the tube body 1, it extends out of the tube body 1 and is connected to the external water source 5. The rear end of the outlet pipe 3 extends out of the tube body 1 and is connected to the negative pressure device 6. The front end of the tube body 1 is provided with a detachable flushing connector, and the flushing connector includes an outer sleeve 7 and an inner sleeve 8. The front end of the outer sleeve 7 is open and is supported and connected to the outer wall of the inner sleeve 8 through a connecting rod. The rear end of the outer sleeve 7 is connected to a closing plate 9. The closing plate 9 is symmetrically provided with a water inlet hole 10 and a water outlet hole 11 corresponding to the water inlet pipe 2 and the water outlet pipe 3 at the front closed end face of the tube body 1. The water outlet hole 11 is connected to the outer sleeve 7, and the front end of the inner sleeve 8 extends out of the outer sleeve 7. The rear end of the inner sleeve 8 extends to the water outlet hole 11 position of the closing plate 9 of the outer sleeve 7 and is connected to the water outlet hole 11. The rear end of the outer sleeve 7 is provided with a disassembly sleeve 12, one end of the disassembly sleeve 12 is fixedly connected to the rear end of the outer sleeve 7, and the other end of the disassembly sleeve 12 is sleeved on the front end portion of the tube body 1. After the disassembly sleeve 12 is sleeved on the tube body 1, the water inlet pipe 2 is docked with the water inlet hole 10, and the water outlet pipe 3 is docked with the water outlet hole 11 to realize the conduction between the water inlet pipe 2 and the inner sleeve 8, and the water outlet pipe 3 and the outer sleeve 7.

[0020] Furthermore, a pump controller 13, a battery 14 and a switch 15 are provided in the tube body 1. The switch 15 is fixed on the outer wall of the tube body 1, and the pump controller 13 and the battery 14 are fixed on the inner wall of the tube body 1. The pump controller 13 is electrically connected to the water inlet pump 4, and the pump controller 13 is connected to the switch 15 and the battery 14 via wires.

[0021] Furthermore, a snap-fit ​​annular groove 16 is provided on the inner wall of the disassembly sleeve 12, and a snap-fit ​​annular protrusion 17 corresponding to the position of the snap-fit ​​annular groove 16 is provided on the outer wall of the tube body 1. The disassembly sleeve 12 is detachably connected to the tube body 1 through the snap-fit ​​annular groove 16 and the snap-fit ​​annular protrusion 17.

[0022] Furthermore, a water inlet pipe 18 and a water outlet pipe 19 are respectively provided on the front end face of the tube body 1. The water inlet pipe 18 is connected to the water inlet pipe 2, and the water outlet pipe 19 is connected to the water outlet pipe 3. The water inlet pipe 18 is inserted into the water inlet hole 10, and the water outlet pipe 19 is inserted into the water outlet hole 11.

[0023] Furthermore, a conversion annular groove 20 is provided on the inner wall of the disassembly sleeve 12, and the conversion annular groove 20 is provided on the rear side of the clamping annular groove 16. The conversion annular groove 20 is engaged with the clamping annular protrusion 17. When the conversion annular protrusion is engaged with the conversion annular groove 20, the water inlet pipe 18 and the water outlet pipe 19 are separated from the water inlet hole 10 and the water outlet hole 11 on the closing plate 9.

[0024] Furthermore, the total length of the flushing head is 6 cm, the length of the inner sleeve 8 extending from the end portion of the outer sleeve 7 is 1 cm, and the diameter is 3 mm-5 mm.

[0025] Furthermore, a bending portion 21 is provided at the front end of the inner sleeve 8, the bending angle is 30°, and the length of the bending portion 21 is 0.5 cm.

[0026] The outer wall of the tube body 1 is provided with a first mark 22 for connecting the water inlet pipe 2 with the inner sleeve 8 and the water outlet pipe 3 with the outer sleeve 7, and a second mark ( Figure 1 (not shown in the figure, the second mark is on the back of the tube body), a corresponding mark 23 is provided on the disassembly sleeve 12. When the corresponding mark 23 on the disassembly sleeve 12 is rotated to the position of the first mark 22, it indicates that the water inlet pipe 2 is connected to the inner sleeve 8, and the water outlet pipe 3 is connected to the outer sleeve 7. When the corresponding mark 23 on the disassembly sleeve 12 is rotated to the second mark position, it indicates that the water inlet pipe 2 is connected to the outer sleeve 7, and the water outlet pipe 3 is connected to the inner sleeve 8.

[0027] The positions of the first mark 22 and the second mark are symmetrically arranged, and the corresponding mark 23 is rotated 180 degrees from the first mark 22 to the second mark.

[0028] Since the flushing connector of the present invention is a detachable structure, the flushing connector can be replaced. A straight flushing connector or a flushing connector with a bending angle of 30° at the curved portion 21 can be used. When in use, the disassembly sheath 12 on the flushing connector is sleeved on the front end of the tube body 1. At this time, the corresponding mark 23 on the disassembly sheath 12 corresponds to the position of the first mark 22 on the tube body 1. Then, the disassembly sheath 12 is buckled on the outer wall of the tube body 1, and the snap-fit ​​annular groove 16 on the inner wall of the disassembly sheath 12 is snap-fitted to the snap-fit ​​annular protrusion 17 on the outer wall of the tube body 1. At this time, the water inlet pipe 18 and the water outlet pipe 19 are respectively inserted into the water inlet pipe 18 and the water outlet pipe 19. In the hole 10 and the water outlet hole 11, the water inlet cannula 18 and the water outlet cannula 19 are tapered to ensure the sealing between the water inlet cannula 18 and the water outlet cannula 19 and the water inlet hole 10 and the water outlet hole 11 respectively. Then start the switch 15, the pump controller 13 controls the water inlet pump 4 to work, and water enters from the water source through the water inlet pipe 2, and is then discharged through the inner sleeve 8 for flushing. The outer sleeve 7 is connected to the negative pressure device 6, and the negative pressure device 6 is a negative pressure bag or other existing technology that can achieve a negative pressure function. I will not go into details. While flushing, the negative pressure device 6 generates negative pressure on the outer sleeve 7, and the outer sleeve 7 extracts the flushing liquid and discarded tissue. When the flushing is completed, the inner sleeve 8 extends out of the outer sleeve 7 part, so there is still residual flushing liquid or waste tissue that cannot be extracted. At this time, pull out the disassembly sheath 12 on the flushing connector, and clamp the conversion annular groove 20 on the inner wall of the annular sheath on the clamping annular protrusion 17. At this time, the water inlet pipe 18 and the water outlet pipe 19 are separated from the water inlet hole 10 and the water outlet hole 11 respectively. At this time, rotate the flushing connector. When the corresponding mark 23 of the disassembly sheath 12 corresponds to the second mark of the tube body 1, move the disassembly sheath 12 toward the rear end of the tube body 1 until the clamping annular groove 16 of the disassembly sheath 12 is clamped on the clamping annular protrusion 17 on the outer wall of the tube body 1, and then connect the inner sleeve 8 of the flushing connector with the water outlet pipe. The tube 19 is connected, and the outer sleeve 7 is connected to the water inlet cannula 18. At this time, the water inlet pump 4 is not turned on, and the residual flushing liquid is sucked out through the inner sleeve 8, and then all the flushing liquid and waste tissue are discharged from the body to complete the entire flushing process. The flushing connector is a disposable product and can be replaced. Since the residual flushing liquid is sucked away by the inner sleeve 8, and the inner sleeve 8 can be extended into places that the outer sleeve 7 cannot reach, the waste liquid can be sucked away more thoroughly. Due to the adoption of the above structure, the utility model has the advantages of simple structure, good flushing effect, avoidance of residual local waste tissue after surgery, reduction of patient pain, and reduction of postoperative complications.

Claims

1. A pen-type electric flushing gun, characterized in that: A pipe body is provided, and a water inlet pipe, a water outlet pipe and a water inlet pump are respectively provided inside the pipe body. The front ends of the water inlet pipe and the water outlet pipe are respectively extended to the front closed end surface of the pipe body. After the water inlet pipe is connected to the water inlet pump in the pipe body, it extends out of the pipe body and is connected to the external water source. The rear end of the water outlet pipe extends out of the pipe body and is connected to the negative pressure device. A detachable flushing connector is provided at the front end of the pipe body. The flushing connector includes an outer sleeve and an inner sleeve. The front end of the outer sleeve is open and is supported and connected to the outer wall of the inner sleeve through a connecting rod. The rear end of the outer sleeve is connected to the closing plate. The plate is symmetrically provided with water inlet holes and water outlet holes corresponding to the water inlet pipe and water outlet pipe on the closed end face of the front end of the tube body. The water outlet hole is connected to the outer sleeve. The front end of the inner sleeve extends out of the outer sleeve, and the rear end of the inner sleeve extends to the water outlet hole position of the closing plate of the outer sleeve and is connected to the water outlet hole. The rear end of the outer sleeve is provided with a disassembly sleeve, one end of the disassembly sleeve is fixedly connected to the rear end of the outer sleeve, and the other end of the disassembly sleeve is sleeved on the front end of the tube body. After the disassembly sleeve is sleeved on the tube body, the water inlet pipe is connected to the water inlet hole, and the water outlet pipe is connected to the water outlet hole to realize the conduction between the water inlet pipe and the inner sleeve, and the water outlet pipe and the outer sleeve.

2. A pen-type electric flushing gun according to claim 1, characterized in that The tube body is provided with a pump controller, a battery and a switch. The switch is fixed on the outer wall of the tube body, and the pump controller and the battery are fixed on the inner wall of the tube body. The pump controller is electrically connected to the water inlet pump, and the pump controller is connected to the switch and the battery via a wire.

3. The pen-type electric flushing gun according to claim 1, characterized in that The inner wall of the disassembly sleeve is provided with a clamping annular groove, and the outer wall of the tube body is provided with a clamping annular protrusion corresponding to the position of the clamping annular groove. The disassembly sleeve is detachably connected to the tube body through the clamping annular groove and the clamping annular protrusion.

4. The pen-type electric flushing gun according to claim 1, characterized in that The front end surface of the pipe body is respectively provided with a water inlet pipe and a water outlet pipe, the water inlet pipe is connected to the water inlet pipe, the water outlet pipe is connected to the water outlet pipe, the water inlet pipe is inserted into the water inlet hole, and the water outlet pipe is inserted into the water outlet hole.

5. The pen-type electric flushing gun according to claim 3, characterized in that A conversion annular groove is provided on the inner wall of the disassembly sleeve, and the conversion annular groove is provided on the rear side of the clamping annular groove. The conversion annular groove is engaged with the clamping annular protrusion. When the conversion annular protrusion is engaged with the conversion annular groove, the water inlet pipe and the water outlet pipe are separated from the water inlet hole and the water outlet hole on the closing plate.

6. The pen-type electric flushing gun according to claim 1, characterized in that The inner sleeve extends out of the end portion of the outer sleeve by 6 cm and has a diameter of 3 mm to 5 mm.

7. The pen-type electric flushing gun according to claim 1, characterized in that The front end of the inner sleeve is provided with a bending portion, the bending angle is 30°, and the length of the bending portion is 1 cm.

8. The pen-type electric flushing gun according to claim 1, characterized in that The outer wall of the tube body is provided with a first mark indicating that the water inlet pipe is connected to the inner sleeve and the water outlet pipe is connected to the outer sleeve. The outer wall is also provided with a second mark indicating that the water inlet pipe is connected to the outer sleeve and the water outlet pipe is connected to the inner sleeve. A corresponding mark is provided on the disassembled sleeve. When the corresponding mark on the disassembled sleeve is rotated to the first mark position, it indicates that the water inlet pipe is connected to the inner sleeve and the water outlet pipe is connected to the outer sleeve. When the corresponding mark on the disassembled sleeve is rotated to the second mark position, it indicates that the water inlet pipe is connected to the outer sleeve and the water outlet pipe is connected to the inner sleeve.