CN204352360U - The Intracranial hematoma drain tube of cranium pressure can be surveyed - Google Patents

Abstract

The utility model discloses an intracranial hematoma drainage tube capable of measuring cranial pressure, which comprises a circular tube body with a closed front end and an open rear end. Several lumens with different diameters are arranged inside the tube body. A miniature pressure sensor is placed on the front end or the side wall close to the lumen, and at least one of the lumens is pierced with a wire connecting the miniature pressure sensor and an external signal processor. The utility model has simple structure and better drainage effect. By adding a miniature pressure sensor at the front end of the drainage tube, the intracranial pressure can be monitored timely and accurately while the hematoma is removed, and complications such as intracranial hypertension can be prevented in advance during the drainage operation, and It can reduce the pain of ventricle puncture for patients and is suitable for popularization and application.

Description

Intracranial hematoma drainage tube with intracranial pressure measurement

technical field

The utility model relates to the field of medical equipment, in particular to an intracranial hematoma drainage tube capable of measuring cranial pressure.

Background technique

In modern medical treatment, intracranial hematoma drainage will be used in time when there is a hematoma in the brain. Open the drainage tube. The drainage tube is made of elastic solid silicone rubber, which has good biocompatibility, is non-irritating to human tissue, non-toxic, has no allergic reaction, and has very little rejection of the body; it has good physical and chemical properties, and is compatible with body fluids and It can maintain its original elasticity and softness during tissue contact without being degraded, and is a fairly stable inert substance. When using the drainage tube, the puncture is achieved with the help of the guide needle. When puncturing or extubating the tube, the guide needle is inserted into the tube body of the drainage tube and contacts the front end of the tube body. The material of the guide needle is generally titanium alloy or stainless steel.

In the process of intracranial hematoma drainage, if it is not handled properly, it may cause complications such as hydrocephalus, which will cause intracranial hypertension and bring more troubles and pains to patients. Therefore, real-time monitoring of patients' intracranial pressure is important necessary. Clinically, intracranial pressure monitors are mostly used to monitor intracranial pressure, and optical fiber probes are used to monitor brain tissue, ventricle, and subdural pressure. Intracranial pressure monitoring includes invasive intracranial pressure monitoring and non-invasive intracranial pressure monitoring. It is an indirect estimate of intracranial pressure by electrophysiological methods, which has poor accuracy and is not currently used clinically. Invasive intracranial pressure monitoring includes intraventricular pressure measurement, subdural pressure measurement, epidural pressure measurement, and lumbar puncture pressure measurement. The most commonly used method is lumbar puncture pressure measurement, but lumbar puncture pressure measurement can only reflect the pressure at that time. Continuous monitoring is not possible; the most accurate method of manometry is intraventricular manometry, by drilling a skull hole at the intersection of the suture and pupil midline followed by ventriculocentesis, or by placing a thin silicone tube, catheter, and manometry device intraoperatively connected to achieve. Therefore, the intracranial pressure monitoring still needs to be punctured separately. If the intracranial pressure monitoring can be performed at the same time as the intracranial hematoma drainage, the patient can be saved from one pain and suffering, and the patient's condition can be observed in time for early diagnosis.

Utility model content

The technical problem to be solved by the utility model is to provide an intracranial hematoma drainage tube capable of measuring intracranial pressure, which can monitor the intracranial pressure in time while removing the hematoma.

In order to solve the above technical problems, a technical solution adopted by the utility model is to provide a drainage tube for intracranial hematoma that can measure intracranial pressure, which includes a circular tube body with a closed front end and an open rear end. There are three lumens with different diameters, the front end of the tube body or the side wall close to the lumen is provided with a miniature pressure sensor, and at least one of the lumens is threaded with a wire connecting the miniature pressure sensor and an external signal processor.

In a preferred embodiment of the present utility model, the front side of the pipe body has several outwardly convex arc-shaped strips arranged at intervals in the circumferential direction, and there is a gap between every two adjacent arc-shaped strips, and the arc-shaped strips The length direction of the corresponding chord is consistent with the axial direction of the pipe body, and each gap is connected with the lumen of the largest pipe diameter in the pipe body, and the ratio of the maximum pipe diameter of the pipe chamber to the length of the chord is 1:( 3-6). The drainage tube with this structure has a better drainage effect, and the length of the chord corresponding to the arc-shaped strip is the axial projection length of the arc-shaped strip, so the axial projection length of the arc-shaped strip is much larger than the maximum diameter of the lumen, so that each The axial length of the gap between two adjacent curved strips is also much larger than the maximum diameter of the lumen. Because of this, during the drainage process, the intracranial blood clots are difficult to block the opening, and the blood clots generated in the cranium can be discharged as they arrive, and the timeliness of blood clot discharge is better, so that the drainage tube with this structure can drain smoothly and achieve drainage effect. better.

In a preferred embodiment of the utility model, the number of said arc bars is three or four. In this way, the drainage tube with the above-mentioned structure is simple and reasonable, and its corresponding strength in the axial direction is better.

In a preferred embodiment of the present invention, a number of small holes arranged at intervals are arranged on the front side of the pipe body, and the ratio of the maximum diameter of the pipe body to the diameter of the small holes is (2-4):1. The drainage tube with this structure is simple in structure, easy to process and low in cost.

In a preferred embodiment of the utility model, the material of the tube body is medical grade elastic solid silicone rubber or medical grade PVC. The material has good biocompatibility and physical and chemical properties, and can maintain its original elasticity and softness when in contact with body fluids and tissues, and has good elastic recovery.

The beneficial effects of the utility model are: the utility model has a simple structure and better drainage effect. By adding a miniature pressure sensor at the front end of the drainage tube, the intracranial pressure can be monitored timely and accurately while the hematoma is removed, and the drainage effect can be prevented in advance. Complications such as intracranial hypertension occur, and the pain of ventricle puncture is reduced, so it is suitable for popularization and application.

Description of drawings

Fig. 1 is a perspective view of Embodiment 1 of an intracranial hematoma drainage tube capable of measuring intracranial pressure of the present invention (the drainage tube is in a normal shape or a drainage state after puncture).

Fig. 2 is another perspective view of Embodiment 1 of the drainage tube (the drainage tube is in the state of use during puncture or the state of use during extubation).

Fig. 3 is a schematic structural view of Embodiment 1 of the drainage tube (the drainage tube is in use when it is punctured or when it is extubated).

Fig. 4 is a cross-sectional view along line A-A of Fig. 3 .

Fig. 5 is a perspective view of Embodiment 2 of the drainage tube (the drainage tube is in a normal shape or a drainage state after puncture).

Fig. 6 is a front view of Fig. 5 (the drainage tube is in a normal shape or a drainage state after puncture).

Fig. 7 is an enlarged sectional view taken along line B-B of Fig. 6 .

Fig. 8 is a perspective view of Embodiment 3 of the drainage tube (the drainage tube is in a normal state or a drainage state after puncture).

Fig. 9 is a diagram of the use state of the drainage tube connected to an external signal processor.

The marks of each part in the accompanying drawings are as follows: 1. Tube body, 11. Curved strip, 12. Notch, 13. Strip groove, 14. Small hole, 2. Lumen, 3. Miniature pressure sensor, 4. Signal processing Device, 5, wire, 6, guide needle.

Detailed ways

The preferred embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings, so that the advantages and characteristics of the utility model can be more easily understood by those skilled in the art, so that the protection scope of the utility model can be defined more clearly .

Example 1:

Please refer to Figures 1 to 4. The drainage tube includes a circular tube body 1 with a closed front end and an open rear end. A miniature pressure sensor 3 is placed at the front end of the tube body 1. The material of the tube body 1 is medical grade elastic solid silicon. Rubber or medical grade PVC. The front side of the pipe body 1 has three outwardly convex arc-shaped strips 11 arranged at intervals in the circumferential direction, and there is a gap 12 between every two adjacent arc-shaped strips 11, and the length direction of the chord corresponding to the arc-shaped strips 11 corresponds The axial direction of the pipe body 1 is consistent, and each gap 12 is connected with the lumen 2 of the largest diameter in the pipe body 1, and the ratio of the largest diameter of the lumen 2 to the length of the chord is 1:6 ( In order to illustrate the problem more clearly, in Fig. 1 to Fig. 4, the pipe body 1 and the arc bar 11 are not actually shown according to the above scale).

When puncturing or pulling out the tube, the guide needle 6 is inserted into the tube body 1 and contacts the front end of the tube body 1, forcing the arc bar 11 to elongate and fall back, so that the cross-sectional shape of the front side of the tube body 1 is circular, and every two An axially extending bar-shaped groove 13 is formed between adjacent arc-shaped bars 11 .

The specifications of the curved strips 11 are the same, so that the specifications of the notches 12 are the same, and the specifications of the bar-shaped grooves 13 are also the same.

Example 2:

Please refer to Figures 5 to 7, the drainage tube includes a circular tube body 1 with a closed front end and an open rear end, and a miniature pressure sensor 3 is placed on the front end of the tube body 1 near the side wall of the lumen 2, and the tube body 1 The material is medical grade elastic solid silicone rubber or medical grade PVC. The front side of the pipe body 1 has four outwardly convex arc-shaped strips 11 arranged at intervals in the circumferential direction, and there is a gap 12 between every two adjacent arc-shaped strips 11. The length direction of the chord corresponding to the arc-shaped strips 11 is the The axial direction of the pipe body 1 is consistent, and each gap 12 is connected with the lumen 2 of the largest diameter in the pipe body 1, and the ratio of the largest diameter of the lumen 2 to the length of the chord is 1:3 ( In order to illustrate the problem more clearly, in Fig. 5 to Fig. 7, the pipe body 1 and the arc bar 11 are not actually shown according to the above scale).

When puncturing or pulling out the tube, the guide needle 6 is inserted into the tube body 1 and contacts the front end of the tube body 1, forcing the arc bar 11 to elongate and fall back, so that the cross-sectional shape of the front side of the tube body 1 is circular, and every two An axially extending bar-shaped groove 13 is formed between adjacent arc-shaped bars 11 .

The specifications of the curved strips 11 are the same, so that the specifications of the notches 12 are the same, and the specifications of the bar-shaped grooves 13 are also the same.

Example 3:

Please refer to Figure 8, the drainage tube includes a circular tube body 1 with a closed front end and an open rear end, and a miniature pressure sensor 3 is arranged at the front end of the tube body 1, and the material of the tube body 1 is medical grade elastic solid silicone rubber or medical grade Grade PVC. The front side of the pipe body 1 is provided with several small holes 14 arranged at intervals in the circumferential direction, and the ratio of the maximum pipe diameter of the pipe body 1 to the diameter of the small holes 14 is 3:1.

In the above-mentioned embodiments, the structure of the front end of the drainage tube is different, but the tube body 1 is the same, and the inside of the tube body 1 is provided with several lumens 2 with different diameters, and at least one of the lumens 2 penetrates There are wires connecting the miniature pressure sensor 3 and the external signal processor 4 . Please refer to Fig. 9, when puncturing, the rear end of the drainage tube is connected to the external signal processor 4, and enters the cranium by means of the guide needle 6 (at this time, the cross-sectional shape of the front side of the tube body 1 is circular), when the After the guide needle 6 is pulled out from the tube body 1, the tube body 1 has a number of convex arc-shaped strips 11 arranged at intervals in the circumferential direction on the front side of the tube body 1 through the elastic restoring force of the tube body 1. Under the enclosing action of the arc strip 11, several notches 12 arranged at intervals in the circumferential direction are formed (at this time, the drainage tube is in the drainage state after puncture); or the front side of the tube body 1 itself has several small holes 14 . The intracranial hematoma is discharged through the gap 12 or the small hole 14. At the same time, a miniature pressure sensor 3 is placed on the front end of the drainage tube or the side wall near the lumen 2, which can monitor the intracranial pressure in real time. It can prevent intracranial hypertension and other complications in the drainage operation in advance, and reduce the pain of ventricle puncture in patients, and is suitable for popularization and application.

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure or equivalent process conversion made by using the utility model specification and accompanying drawings, or directly or indirectly used in other Related technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (5)

1. can survey the Intracranial hematoma drain tube of cranium pressure for one kind, comprise that front end is closed, the circular body of rear end opening, it is characterized in that, tubular body is provided with the different tube chamber of several pipe diameter sizes, the front end of body or front end are equipped with micro pressure sensor on the sidewall of tube chamber, are wherein installed with the wire connecting micro pressure sensor and external signal processor at least one tube chamber.

2. the Intracranial hematoma drain tube surveying cranium pressure according to claim 1, it is characterized in that, there are the spaced apart some evagination arc strips of circumference the front side of body, a gap is all had between every two adjacent arc strips, the length trend of string corresponding to arc strip moves towards consistent with the axis of body, each gap is all communicated with the tube chamber of caliber maximum in body, and the ratio of the maximum caliber of described tube chamber and the length of described string is 1:(3-6).

3. the Intracranial hematoma drain tube surveying cranium pressure according to claim 2, is characterized in that, the quantity of described arc strip is three or four.

4. the Intracranial hematoma drain tube surveying cranium pressure according to claim 1, is characterized in that, the front side circumference of body arranges some spaced apart apertures, and the maximum caliber of body and the ratio of hole diameter are (2-4): 1.

5., according to the Intracranial hematoma drain tube of the arbitrary described cranium the surveyed pressure of Claims 1-4, it is characterized in that, the material of described body is medical grade elastic solid (Hookean body) silicone rubber or medical grade PVC.