Intracranial pressure monitoring and drainage integrated equipment

Abstract

The utility model discloses intracranial pressure monitoring and drainage integrated equipment and a preparation method thereof. The equipment comprises a probe catheter, a probe, a pressure sensor, a plug, a Luer taper and a signal receiver, the probe catheter is a strip-shaped annular tube body, and the outer wall surface and the inner wall surface of the annular tube body form an annular cavity; a guide tube I and a guide tube II are arranged in the annular cavity, and a drainage tube is defined by the inner wall surface of the annular tube body; a groove is formed in the top section of the annular tube body, and the catheter I and the drainage tube are communicated at the groove; the drainage tube is provided with drainage holes; a penetrating hole is formed in the tail section of the annular pipe body; the pressure sensor comprises a pressure chip and a wire which are electrically connected; the pressure chip is arranged in the groove, and the wire is arranged in the guide pipe I. The wire penetrates through the penetrating-out hole to be electrically connected with the signal receiver. The probe is arranged in the catheter II; the detection end of the annular tube body is provided with a plug, and the tail end of the annular tube body is provided with a pagoda female Luer taper. According to the monitoring and drainage integrated equipment, real-time drainage can be conducted according to the intracranial pressure monitoring condition, and the treatment risk of a patient is reduced.

Description

Technical Field

[0001] The present application belongs to the field of medical equipment technology, and in particular relates to a device integrating intracranial pressure monitoring and drainage and a preparation method thereof. Background Art

[0002] At present, the treatment for increased intracranial pressure is intracranial drainage and lumbar drainage. However, the detection of increased intracranial pressure often uses invasive pressure detection by implanting intracranial pressure probes, among which intraventricular pressure measurement is the gold standard for intracranial pressure monitoring. Drainage should be performed immediately after the patient's intracranial pressure is found to be increased. Otherwise, continued increase in intracranial pressure may lead to brain herniation or even brain damage and death. Therefore, a second operation, namely craniotomy and drainage or lumbar puncture and drainage, is often required, which increases the patient's pain and reduces the efficiency of treatment. Utility Model Content

[0003] In view of this, the present application provides an integrated intracranial pressure monitoring and drainage device and a preparation method thereof, the main purpose of which is to solve the technical problem that increased intracranial pressure cannot be detected and drained simultaneously.

[0004] On the one hand, the present application provides an intracranial pressure monitoring and drainage integrated device, the device comprising a probe catheter, a probe, a pressure sensor, a plug, a pagoda female Luer connector and a signal receiver;

[0005] The probe catheter is a strip-shaped annular tube body, and an annular cavity is formed between the outer wall surface and the inner wall surface of the annular tube body; the catheter I and the catheter II are respectively arranged in the annular cavity along its axial direction, and the cavity enclosed by the inner wall surface of the annular tube body forms a drainage tube;

[0006] The top section of the annular tube body is provided with a groove, and the catheter I and the drainage tube are connected at the groove; a drainage hole is provided on the tube body of the drainage tube near the groove; and a through hole is provided on the tail section of the annular tube body;

[0007] The pressure sensor includes an electrically connected pressure chip and a wire;

[0008] The pressure chip is fixedly arranged in the groove, the wire is arranged in the conduit I, and the wire passes through the through hole and is electrically connected to the signal receiver;

[0009] The probe is arranged in the catheter II, one end of the catheter II close to the groove is closed, and the probe is used to support the device so as to facilitate implantation into the cerebral ventricle;

[0010] The detection end of the annular tube body is provided with a plug, and the tail end of the annular tube body is provided with a pagoda female Luer connector.

[0011] Optionally, the probe catheter is provided with a silicone fixing piece at the outlet hole to fix the outlet wire.

[0012] Optionally, a scale line is provided on the annular tube body downstream of the drainage hole for judging the implantation depth of the single catheter.

[0013] Optionally, the scale line is 1 to 15 cm.

[0014] Optionally, a developing line is provided on the wall of the catheter II, and a notch is provided on the wall corresponding to the 5-14 cm scale line, preferably a notch is provided above 12 cm; the developing line is used for the operator to judge the depth position of the device implanted into the ventricle.

[0015] Optionally, the pressure chip is encapsulated in a protective cover, and the protective cover is filled with a flexible protective glue; the protective cover is selected from a medical metal protective cover.

[0016] Optionally, the number of the drainage holes is 1-20; the number of the wires is 1-6.

[0017] Optionally, the pressure chip has a length of 1 to 5 mm, a width of 0.7 to 2.7 mm, and a thickness of 0.1 to 1 mm.

[0018] Optionally, the outer diameter of the probe catheter is 1 to 5 mm; the length of the groove is 0.3 to 3 mm;

[0019] The distance between the groove and the top end of the probe catheter is 0.1 to 5 mm.

[0020] Optionally, the annular tube body is a circular annular tube body.

[0021] The probe catheter of the present application is a three-lumen catheter, with both ends of the catheter II sealed and a notch on the tube wall for placing the probe into the catheter II. The probe is a thin strip of metal rod with a certain hardness, while the device is a strip tube with soft properties. With the support of the probe, it is easier to implant the probe catheter into the ventricle.

[0022] In a second aspect, the present application provides a method for preparing the above-mentioned device for integrated intracranial pressure monitoring and drainage, the method comprising the following steps:

[0023] S1: The wire and the pressure chip are welded together using welding technology to form a bougie;

[0024] S2: inserting the wire into the catheter I, and encapsulating the pressure chip in a metal protective sleeve to form a pressure sensor;

[0025] S3: passing the wire through the hole and fixing it with a silicone block, and welding the wire and the signal receiver together;

[0026] S4: Fix the pressure sensor in the groove at the top of the probe catheter.

[0027] Compared with the prior art, this application has the following beneficial effects:

[0028] (1) The probe catheter for intracranial pressure monitoring and drainage provided in the present application can avoid the soft tissue covering the surface of the sensor membrane. Compared with the method of directly exposing the sensor with a single-sided window, the probe catheter of the present application has stable intracranial pressure monitoring data, and the use of far-field ultrasonic welding greatly reduces the production difficulty and cost.

[0029] (2) The probe catheter for integrated intracranial pressure monitoring and drainage provided in the present application can perform drainage while monitoring intracranial pressure, thereby avoiding delayed drainage due to failure to timely detect increased intracranial pressure in patients, avoiding secondary surgery for drainage or lumbar cistern puncture and drainage, and reducing the risk of patient treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of the intracranial pressure probe catheter of an embodiment of the present application;

[0031] Figure 2 A partially exploded schematic diagram of an intracranial pressure probe catheter according to an embodiment of the present application;

[0032] Figure 3 This is a schematic diagram of the structure of the intracranial pressure probe catheter lumen I of the embodiment of the present application;

[0033] Figure 4 This is a schematic diagram of the structure of the intracranial pressure probe catheter of an embodiment of the present application.

[0034] Reference numerals

[0035] 1 probe catheter, 1-1 catheter I, 1-2 catheter II, 1-3 drainage tube, 1-4 pressure catheter sleeve, 1-5 drainage hole, 1-6 perforation hole, 1-7 groove, 1-8 development line;

[0036] 2 probes;

[0037] 3 pressure sensor, 3-1 pressure chip, 3-2 wire, 3-3 chip protection cover;

[0038] 4 plugs;

[0039] 5-pagoda female Luer connector;

[0040] 6 signal receiver;

[0041] 7 silicone blocks. DETAILED DESCRIPTION

[0042] The present application is further described below in conjunction with specific embodiments. The following are only a few embodiments of the present application, and are not intended to limit the present application in any form. Although the present application discloses the following preferred embodiments, they are not intended to limit the present application. Any technician familiar with the profession, without departing from the scope of the technical solution of the present application, using the above disclosed technical content to make some changes or modifications are equivalent to equivalent implementation cases and are within the scope of the technical solution.

[0043] Example 1

[0044] like Figure 1-Figure 4 As shown, an intracranial pressure monitoring and drainage integrated device includes a probe catheter 1, a probe 2, a pressure sensor 3, a plug 4, a pagoda female Luer connector 5 and a signal receiver 6;

[0045] The probe catheter 1 is a long circular tube body, and an annular cavity is formed between the outer wall surface and the inner wall surface of the circular tube body; along the axial direction of the annular cavity, a catheter I1-1 and a catheter II 1-2 are respectively arranged on the left and right sides of the cavity, and the catheter I1-1 has a cavity I, and the catheter II 1-2 has a cavity II, and the cavity III enclosed by the inner wall of the annular tube body forms a drainage tube 1-3; the top section of the annular tube body (a section of the tube body near the top) is provided with a groove 1-7, and the catheter I and the drainage tube are connected at the groove; the tube body of the drainage tube near the groove is provided with a drainage hole 1-5, and the brain tissue fluid passes through the drainage hole and then enters the cavity III of the drainage tube; the tail section of the annular tube body (a section of the tube body near the tail) is provided with a through hole 1-6; the pressure sensor 3 includes an electrically connected pressure chip 3-1 and a wire 3-2, the pressure chip is encapsulated in a chip protective cover 3-3, and the protective cover is filled with flexible protective glue. The encapsulated pressure chip is fixed in the groove, and the wire 3-2 is arranged in the catheter I1-1. After the wire 3-2 passes through the through hole 1-6, it is electrically connected to the signal receiver 6; the probe 2 is arranged in the catheter II 1-2; one end of the catheter II near the groove is closed, and a notch is provided on the wall of the catheter II for placing a probe into the catheter II, the probe being used to support the device for easy implantation into the ventricle; a plug 4 is provided at the detection end (top end, inserted into the brain) of the annular tube body, and a pagoda female Luer connector 5 is provided at the tail end of the annular tube body.

[0046] Example 2

[0047] like Figure 1-Figure 4 As shown, an intracranial pressure monitoring and drainage integrated device includes a probe catheter 1, a probe 2, a pressure sensor 3, a plug 4, a pagoda female Luer connector 5 and a signal receiver 6;

[0048] The probe catheter 1 is a long circular tube with an outer diameter of 1 to 3 mm. An annular cavity is formed between the outer wall and the inner wall of the circular tube. Along the axial direction of the annular cavity, catheters I1-1 and II are respectively arranged on the left and right sides of the cavity. 1-2, the catheter I1-1 has a cavity I, the catheter II has a cavity II, and the cavity III enclosed by the inner wall of the annular tube body forms a drainage tube 1-3; the top section of the annular tube body (a section of the tube body close to the top) is provided with a groove 1-7, the length of which is 0.3-3 mm, and the distance between the groove and the top of the probe catheter is 0.1-5 mm; the catheter I and the drainage tube are connected at the groove; the drainage tube is provided with 1-20 drainage holes 1-5 on the tube body close to the groove, and the brain tissue fluid passes through the drainage holes and then enters the cavity III of the drainage tube; the annular tube body downstream of the drainage hole is provided with scale lines for judging the implantation depth of the pipeline; the scale lines are 1-15 cm; the wall of the cavity II is printed with a developing line 1-8, and a notch is provided on the wall corresponding to the 5-14 cm scale lines; the annular The tail section of the tube body (a section of the tube body near the tail) is provided with a through hole 1-6; the pressure sensor 3 includes an electrically connected pressure chip 3-1 and four wires 3-2, the pressure chip is packaged in a chip protection cover 3-3, and the protective cover is filled with flexible protective glue. The packaged pressure chip is fixed in the groove. The length of the pressure chip after packaging is 1-5mm, the width is 0.7-2.7mm, and the thickness is 0.1-1mm; the wire is arranged in the catheter I, and after the wire passes through the through hole, a silicone block is set near the through hole of the probe catheter to fix the wire that passes through, and the wire is electrically connected to the signal receiver after being fixed; the probe 2 is arranged in the catheter II, and the end of the catheter II close to the groove is closed; the detection end (top end, inserted into the brain) of the annular tube body is provided with a plug, and the tail end of the annular tube body is provided with a pagoda female Luer connector.

[0049] Example 3

[0050] The assembly method of the device for integrated intracranial pressure monitoring and drainage of Example 1 or Example 2 comprises the following steps:

[0051] S1: The wire and the pressure chip are welded together using welding technology to form a bougie;

[0052] S2: inserting the wire into the cavity I, and encapsulating the pressure chip in a metal protective sleeve to form a pressure sensor;

[0053] S3: passing the wire through the hole and fixing it with a silicone block, and welding the wire and the signal receiver together;

[0054] S4: Fix the pressure sensor in the groove at the top of the probe catheter.

[0055] The above are only a few embodiments of the present application and do not constitute any form of limitation to the present application. Although the present application is disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technician familiar with the profession, without departing from the scope of the technical solution of the present application, using the technical content disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. An intracranial pressure monitoring and drainage device, characterized in that: The device includes a probe catheter, a probe, a pressure sensor, a plug, a pagoda female Luer connector and a signal receiver; The probe catheter is a strip-shaped annular tube body, and an annular cavity is formed between the outer wall surface and the inner wall surface of the annular tube body; the catheter I and the catheter II are respectively arranged in the annular cavity along its axial direction, and the cavity enclosed by the inner wall surface of the annular tube body forms a drainage tube; The top section of the annular tube body is provided with a groove, and the catheter I and the drainage tube are connected at the groove; a drainage hole is provided on the tube body of the drainage tube near the groove; and a through hole is provided on the tail section of the annular tube body; The pressure sensor includes an electrically connected pressure chip and a wire; The pressure chip is fixedly arranged in the groove, the wire is arranged in the conduit I, and the wire passes through the through hole and is electrically connected to the signal receiver; The probe is arranged in the catheter II, one end of the catheter II close to the groove is closed, and the probe is used to support the device so as to facilitate implantation into the cerebral ventricle; The detection end of the annular tube body is provided with a plug, and the tail end of the annular tube body is provided with a pagoda female Luer connector.

2. The device for intracranial pressure monitoring and drainage according to claim 1, characterized in that: The probe catheter is sleeved with a silicone fixing piece at the outlet hole to fix the wire that has passed through.

3. The device for integrated intracranial pressure monitoring and drainage according to claim 1, characterized in that: A scale line is arranged on the annular tube body downstream of the drainage hole, which is used to judge the depth of the catheter implanted into the cerebral ventricle.

4. The device for integrated intracranial pressure monitoring and drainage according to claim 3, characterized in that: The scale line is 1 to 15 cm.

5. The device for integrated intracranial pressure monitoring and drainage according to claim 4, characterized in that: A developing line is arranged on the wall surface of the catheter II, and a notch is arranged on the wall surface corresponding to the 5-14 cm scale line.

6. The device for integrated intracranial pressure monitoring and drainage according to claim 1, characterized in that: The pressure chip is encapsulated in a protective cover, and the protective cover is filled with a flexible protective glue; the protective cover is selected from a medical metal protective cover.

7. The device for integrated intracranial pressure monitoring and drainage according to claim 1, characterized in that: The number of the drainage holes is 1-20; the number of the wires is 1-6.

8. The device for integrated intracranial pressure monitoring and drainage according to claim 1, characterized in that: The pressure chip has a length of 1 to 5 mm, a width of 0.7 to 2.7 mm, and a thickness of 0.1 to 1 mm; The outer diameter of the probe catheter is 1 to 5 mm; the length of the groove is 0.3 to 3 mm; The distance between the groove and the top end of the probe catheter is 0.1 to 5 mm.

9. The device for integrated intracranial pressure monitoring and drainage according to claim 1, characterized in that: The annular tube body is a circular annular tube body.

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