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Operation positioning method from sphernoidal sinus to saddle ragion and simple positioning instrument

A positioning method and a positioning instrument technology, which are applied in the fields of surgery, stereotaxic surgical instruments, medical science, etc., can solve problems such as difficult promotion, large radiation dose of surgical operators, and high usage fees for patients.

Inactive Publication Date: 2002-02-27
FOURTH MILITARY MEDICAL UNIVERSITY
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Problems solved by technology

This operation is routinely used in the world by TV X-ray fluoroscopy machine or intraoperative X-ray positioning. It has the advantages of accuracy and reliability, but it is time-consuming and labor-intensive, and the radiation dose of the operator is too large.
In the past two years, three-dimensional surgical navigation systems such as the ACUSTAR I system have been used internationally to avoid the problem of radiation doses for surgical operators. ACUSTAR I system once positioned about 20,000 yuan
It is not easy to promote in the world at present

Method used

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  • Operation positioning method from sphernoidal sinus to saddle ragion and simple positioning instrument
  • Operation positioning method from sphernoidal sinus to saddle ragion and simple positioning instrument
  • Operation positioning method from sphernoidal sinus to saddle ragion and simple positioning instrument

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Embodiment Construction

[0024] see Figure 1-8 .

[0025] figure 1 The illustrations of the midpoint of the brow arch, the nasal spine-saddle, and the angle between the nasal spine, the length of the line connecting the midpoint of the saddle base (A) to the anterior nasal spine (B), and the midpoint of the brow arch (C) to the anterior nasal spine are given. The included angle of the spine (B) is shown in the illustration.

[0026] The continuous length between the midpoint of the saddle floor and the anterior nasal spine and the angle between the midpoint of the brow arch and the anterior nasal spine were measured on the CT midline sagittal slice before operation. The length was 5-8 cm, with an average of 6.8 cm. 56°~64°, with an average of 60°. During the operation, the angle and depth of the surgical approach can be guided according to the angle and length of the midpoint of the sellar floor-anterior nasal spine-brow arch midpoint;

[0027] figure 2 The legend of the upper incisor cusp, nasa...

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Abstract

The present invention discloses an included angle measurement method using anterior nasal spina as centre to implement positining method for making transsphenoidal surgery of sella turcica region andits simple position finder. Said method includes midpoint of superciliary arch, nasal spina-saddle and nasal spina included angle positioing method and premaxillary dental cusp, nasal spina-saddle and nasal spina included angle positioing method. Said invented simple position finder is formed from cross bar with fixing screw, U-shaped frame, spherical coordinatometer, connecting bar, indication screw of midpoint of superciliary arch, measurement probe, indication screw of anterior nasal spina and international stanard adult system nasal retractor. Said invention can make accurate positioing, can prevent radiation damage, shorten operation time and raise rate of success of operation.

Description

1. Technical field [0001] The invention relates to a positioning method for medical operation and a medical auxiliary device, in particular to a positioning method and a simple positioning device for transsphenoidal approach saddle area operation by using an angle measurement method centered on the anterior nasal spine. 2. Background technology [0002] The sublabial-septal-sphenoidal approach is the most commonly used type of transsphenoidal sellar tumor resection. Since Cushing adopted this method in 1907, it has become a mature method for pituitary tumor resection. Compared with other craniotomy operations, this operation has the advantages of less trauma, convenient tumor removal, faster recovery, and lower mortality. , especially suitable for the resection of pituitary microadenomas. Because the operation is limited by the bony structure of the surgical approach, the surgical field of view is small and the site is deep and narrow, especially when the approach passes th...

Claims

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Application Information

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IPC IPC(8): A61B90/11
Inventor 顾建文章翔费舟付洛安屈延李侠高大宽曹卫东甄海宁粱景文
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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