Double-layer drainage tube capable of ultrasonic exploration

Abstract

The double-layer drainage tube comprises an inner-outer double-tube drainage device and an ultrasonic detector, the inner-outer double-tube drainage device comprises an outer drainage tube and an inner dosing tube, the inner dosing tube is coaxially arranged in the outer drainage tube in the extending direction of the outer drainage tube, the head end of the outer drainage tube is in a cone frustum shape, and the outer drainage tube is provided with an ultrasonic probe. The head end of the outer drainage tube is connected with the head end of the inner dosing tube; the ultrasonic detector comprises a miniature ultrasonic probe and an ultrasonic imager, a probe groove is formed in the outer side of the head end of the outer drainage tube, the miniature ultrasonic probe is connected into the probe groove, a through hole is formed in the bottom of the probe groove, the bottom of the miniature ultrasonic probe is connected with one end of a wire, and the wire penetrates through the through hole. The wire is arranged on the outer wall of the inner dosing tube in the extending direction of the inner dosing tube, and the other end of the wire is connected with an ultrasonic imager. The thoroughness and reliability of drainage can be improved, and the drainage condition can be monitored in real time.

Description

Technical Field

[0001] The utility model relates to the field of human daily necessities, in particular to medical equipment, in particular to a double-layer drainage tube capable of ultrasonic detection. Background Art

[0002] Subdural hematoma or effusion refers to the accumulation of blood in the subdural space due to intracranial hemorrhage. Subdural hematoma or effusion has the highest incidence among intracranial hematomas. The usual treatment method is skull drilling and flushing closed drainage, that is, drilling a hole in the skull on the side of the subdural hematoma or effusion, inserting a drainage tube after cutting the dura mater to flush and drain the hematoma or effusion. After the drainage of subdural hematoma or effusion, the drainage volume and CT imaging are routinely used to determine whether the drainage of subdural hematoma or effusion is sufficient and whether the drainage tube can be removed. However, it is often the case that the drainage of subdural hematoma or effusion is not thorough due to poor drainage, untimely CT examination or difficult examination, which prolongs the treatment cycle. The patent with publication number CN217489503U discloses a real-time ultrasound detection drainage catheter. The real-time ultrasound detection drainage catheter comprises: a drainage tube, a drainage port and an ultrasound detection module, wherein the drainage tube comprises an insertion section inserted into the patient's brain and a reserved section reserved outside the patient's brain; the drainage port is opened at the head of the insertion section; the ultrasound detection module is inserted into the drainage tube to detect the position of the drainage tube in the patient's brain. However, the real-time ultrasound detection drainage catheter only allows hematoma or effusion to flow out passively through the drainage hole, and there is still a risk of incomplete drainage. Summary of the invention

[0003] The utility model aims to provide a double-layer drainage tube capable of ultrasonic detection, which can solve the technical problem of incomplete drainage in the drainage device in the prior art.

[0004] A double-layer drainage tube capable of ultrasonic detection comprises an inner-outer double-tube drainage device and an ultrasonic detector, characterized in that: the inner-outer double-tube drainage device comprises an outer drainage tube and an inner drug delivery tube, the inner drug delivery tube is coaxially arranged inside the outer drainage tube along the extension direction of the outer drainage tube, the head end of the outer drainage tube is in a truncated cone shape, the head end of the outer drainage tube is connected to the head end of the inner drug delivery tube, a section of the outer drainage tube close to the head end thereof is provided with a plurality of drainage holes, and the head end of the inner drug delivery tube is coaxially provided with at least one circular one-way valve along the inner wall of the tube; the ultrasonic detector comprises a miniature ultrasonic probe and an ultrasonic imager, a probe groove (not shown) is provided outside the head end of the outer drainage tube, the miniature ultrasonic probe is welded or clamped in the probe groove, a through hole (not shown) is provided at the bottom of the probe groove, the bottom of the miniature ultrasonic probe is connected to one end of a wire, the wire passes through the through hole, the wire is arranged on the outer wall of the inner drug delivery tube along the extension direction of the inner drug delivery tube, and the other end of the wire is connected to the ultrasonic imager.

[0005] Furthermore, the inner diameter of the external drainage tube is 6-7 mm, the wall thickness is 1 mm, and the length is 10 cm.

[0006] Furthermore, the inner diameter of the internal drug delivery tube is 2 mm, the wall thickness is 1 mm, and the length is 15 cm.

[0007] Furthermore, the drainage holes are rounded rectangular holes, and are evenly staggeredly arranged on a circumference of the external drainage tube close to its head end.

[0008] Compared with the prior art, the utility model has positive and obvious effects: the external drainage tube is used to drain out the hematoma or effusion, and the internal drug delivery tube is used to deliver the medicine to the affected part. The design of the internal and external double-tube drainage device can achieve the delivery of the medicine while draining the blood. The medicine forces the hematoma or effusion out, which can improve the thoroughness and reliability of drainage; the one-way valve arranged at the head end of the internal drug delivery tube controls the internal drug delivery tube to only deliver the medicine; the several rounded rectangular drainage holes opened on the external drainage tube can prevent the drainage tube from being blocked; the head end of the external drainage tube is in the shape of a truncated cone, which is more convenient for its entry; the ultrasonic detector can monitor the amount of postoperative subdural hematoma or effusion in real time, observe whether there are complications such as poor drainage and rebleeding, and reduce the number of postoperative head CT examinations. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is an overall diagram of the utility model.

[0010] Figure 2 It is a perspective view of the utility model.

[0011] Figure 3 yes Figure 2 A partial enlarged view of .

[0012] In the figure: 1. Internal and external double-tube drainage device; 11. External drainage tube; 12. Internal medication tube; 13. One-way valve; 2. Ultrasonic detector; 21. Miniature ultrasonic probe; 22. Guide wire; 23. Ultrasonic imager; 3. Drainage hole. DETAILED DESCRIPTION

[0013] The following embodiments will further illustrate the present invention, but are not intended to limit the present invention.

[0014] Embodiment 1, as Figures 1 to 3As shown, a double-layer drainage tube capable of ultrasonic detection comprises an inner-outer double-tube drainage device 1 and an ultrasonic detector 2, characterized in that: the inner-outer double-tube drainage device 1 comprises an outer drainage tube 11 and an inner drug delivery tube 12, the inner drug delivery tube 12 is coaxially arranged inside the outer drainage tube 11 along the extension direction of the outer drainage tube 11, the head end of the outer drainage tube 11 is in a truncated cone shape, the head end of the outer drainage tube 11 is connected to the head end of the inner drug delivery tube 12, a section of the outer drainage tube 11 near its head end is provided with a plurality of drainage holes 3, and at least one circular hole 3 is arranged in the tube cavity of the head end of the inner drug delivery tube 12 shaped one-way valve 13; the ultrasonic detector 2 includes a miniature ultrasonic probe 21 and an ultrasonic imager 23. A probe slot (not shown in the figure) is provided on the outer side of the head end of the external drainage tube 11. The miniature ultrasonic probe 21 is welded or clamped in the probe slot. A through hole (not shown in the figure) is provided at the bottom of the probe slot. The bottom of the miniature ultrasonic probe 21 is connected to one end of a wire 22. The wire 22 passes through the through hole. The wire 22 is arranged on the outer wall of the inner drug delivery tube 12 along the extension direction of the inner drug delivery tube 12. The other end of the wire 22 is connected to the ultrasonic imager 23.

[0015] Furthermore, the inner diameter of the external drainage tube 11 is 6-7 mm, the wall thickness is 1 mm, and the length is 10 cm.

[0016] Furthermore, the inner drug delivery tube 12 has an inner diameter of 2 mm, a wall thickness of 1 mm, and a length of 15 cm.

[0017] Furthermore, the drainage holes 3 are rounded rectangular holes, and are evenly staggeredly arranged on a section of the circumference of the external drainage tube 11 near its head end.

[0018] This embodiment needs to be cleaned and disinfected before and after use to meet medical standards.

[0019] The working process of this embodiment: Based on anatomical positioning, multiple locations are often punctured, such as the anterior horn puncture point, the posterior horn puncture point, the lower horn puncture point of the lateral ventricle, and the triangular part puncture point. A local skull hole is drilled, and the dura mater is cut after electrocoagulation of the dura mater to stop bleeding. The internal and external double-tube drainage device 1 is punctured into the ventricle using a hard puncture needle core. When cerebrospinal fluid is seen flowing out of the external drainage tube 11, the needle core is removed, and the internal and external double-tube drainage device 1 is fixed subcutaneously. The external drainage tube 11 can monitor intracranial pressure, drain cerebrospinal fluid externally, and observe the properties of cerebrospinal fluid. It can also be used to inject proteases and antibacterial drugs through the internal drug delivery tube 12 to achieve the purpose of treatment. The ultrasonic detector 2 can monitor the drainage status in real time to ensure the drainage effect.

[0020] Specifically, the miniature ultrasonic probe 21, the guide wire 22, and the ultrasonic imager 23 described in this embodiment all adopt well-known technical solutions in the prior art, which will not be described in detail here.

[0021] Embodiment 2, as Figures 1 to 3 As shown, unlike the first embodiment, the double-layer drainage tube capable of ultrasonic detection can also be used for drainage surgery of subdural hematoma or effusion. A hole is drilled in the skull on the side of the subdural hematoma or effusion, and after the dura mater is cut, the head end of the inner and outer double-tube drainage device 1 (that is, the head end of the inner drug delivery tube 12 or the head end of the outer drainage tube 11) is inserted to flush and drain the hematoma or effusion. The outer drainage tube 11 is used to drain the hematoma or effusion, and the inner drug delivery tube 12 is used to infuse liquid medicine into the affected area. The design of the inner and outer double-tube drainage device can achieve the infusion of liquid medicine while draining blood. The liquid medicine forces the hematoma or effusion out. Specifically, after the liquid medicine enters the dura mater from the inner drug delivery tube 12 through its head end, the subdural hematoma or effusion is drained through the outer drainage tube 11. The hole 3 is pressed into the external drainage tube 11, and then the liquid is led out by the external drainage tube 11, which can drain thoroughly; the one-way valve arranged at the head end of the internal drug delivery tube 12 controls the internal drug delivery tube 12 to only perform the input operation of the liquid medicine; the several rounded rectangular drainage holes 3 opened in the external drainage tube 11 can prevent the external drainage tube 11 from being blocked; the head end of the external drainage tube 11 is in the shape of a truncated cone, which is more convenient for its entry; the ultrasonic detector 2 can monitor the amount of postoperative subdural hematoma or effusion in real time, observe whether there are complications such as poor drainage and rebleeding, and reduce the number of postoperative head CT examinations.

[0022] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double-layer drainage tube capable of ultrasonic detection, comprising an inner and outer double-tube drainage device and an ultrasonic detector, characterized in that: The inner and outer double-tube drainage device comprises an outer drainage tube and an inner drug delivery tube, the inner drug delivery tube is coaxially arranged inside the outer drainage tube along the extension direction of the outer drainage tube, the head end of the outer drainage tube is in a truncated cone shape, the head end of the outer drainage tube is connected to the head end of the inner drug delivery tube, a section of the outer drainage tube close to its head end is provided with a plurality of drainage holes, and the head end of the inner drug delivery tube is coaxially provided with at least one circular one-way valve along the inner wall of the tube; the ultrasonic detector comprises a miniature ultrasonic probe and an ultrasonic imager, a probe groove is provided on the outer side of the head end of the outer drainage tube, the miniature ultrasonic probe is welded or clamped in the probe groove, a through hole is provided at the bottom of the probe groove, the bottom of the miniature ultrasonic probe is connected to one end of the wire, the wire passes through the through hole, the wire is arranged on the outer wall of the inner drug delivery tube along the extension direction of the inner drug delivery tube, and the other end of the wire is connected to the ultrasonic imager.

2. The double-layer drainage tube capable of ultrasonic detection according to claim 1, characterized in that: The inner diameter of the external drainage tube is 6-7mm, the wall thickness is 1mm, and the length is 10cm.

3. The double-layer drainage tube capable of ultrasonic detection according to claim 1, characterized in that: The inner diameter of the internal medication tube is 2 mm, the wall thickness is 1 mm, and the length is 15 cm.

4. The double-layer drainage tube capable of ultrasonic detection according to claim 1, characterized in that: The drainage holes are rounded rectangular holes, which are evenly staggered and arranged on a circumference of the external drainage tube close to the head end thereof.

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