CN103976802A - Spinal cord terminal filament pulling device - Google Patents
Spinal cord terminal filament pulling device Download PDFInfo
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- CN103976802A CN103976802A CN201410240497.4A CN201410240497A CN103976802A CN 103976802 A CN103976802 A CN 103976802A CN 201410240497 A CN201410240497 A CN 201410240497A CN 103976802 A CN103976802 A CN 103976802A
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- rising wood
- circle
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Abstract
The invention belongs to the field of medical apparatuses and instruments, and particularly relates to a spinal cord terminal filament pulling device. The problem that an existing device is poor in similarity, repeatability and operability is solved. The spinal cord terminal filament pulling device comprises a sleeve nail, a rotating cap and a clamping pin. The sleeve nail comprises an upper edge part at the upper end and a screw part at the lower end of the sleeve part, a side hole is formed in the lower portion of the sleeve part, and a plurality of small holes are formed in the top end of the upper edge part. The rotating cap comprises a winding part and a fixing part which are arranged in a step mode, an indicator dial part is arranged at the upper end of the fixing part, a side hole is formed in the lower end of the winding part, and a plurality of small holes are formed in the top end of the indicator dial part. The clamping pin comprises a holding part and a pin part. According to the spinal cord terminal filament pulling device, the sleeve nail is planted in a body, the rotating cap is embedded in the sleeve nail, a thread is used for enabling a terminal filament and the spinal cord terminal filament pulling device to be connected, and after an operation, a spinal cord can be pulled by rotating the rotating cap. The spinal cord terminal filament pulling device can simulate the pathophysiologic process of a tethered cord syndrome of people, and when the spinal cord terminal filament pulling device is applied to an animal, an established animal model is good in clinical similarity, repeatability and operability.
Description
Technical field
The invention belongs to medical instruments field, be specifically related to a kind of filum terminale tractor.
Background technology
Tethered cord syndrome is a series of clinical syndromes that cause filum terminale or the long-term tractive of filum terminale surrounding tissue or compressing conus medullaris to cause due to various congenital or posteriority factors.Cause the pathological factor of tethered cord syndrome to mainly contain: the congenital factors such as spinal meninges bulging, Myelomeningocele, lipomyelomeningocele, Canal Fat tumor, diastematomyelia and filum terminale are thick, or the posteriority factor such as operation, inflammation or damage.Its pathomechanism is also not fully aware of, thereby is the clinical difficult problem of puzzlement to its Clinics and Practices always.Therefore, strengthen that the research of its pathomechanism is had to important value.
Carry out the research of tethered cord syndrome, first will set up filum terminale mechanical strain model.The animal model of tethered cord syndrome both domestic and external mainly contains: one, the acute animal model that ties: one end of 2-0 silk thread is tied up on filum terminale, the other end suspend in midair by pulley system 1-5g counterweight tractive cat spinal cord to imitate the mankind's tethered cord syndrome.Two, the chronic animal model that ties: filum terminale is sewn on spinal dura mater to construct chronic mechanical strain model.Three, spinal cord mechanical strain model: clamp spinal dura mater pipe and circular cone with clip, tie up with silk thread, the counterweight that silk thread hangs Different Weight by assembly pulley carrys out tractive spinal cord.Present animal model both domestic and external or be confined to the tractive of short-term, otherwise long-term tractive but differs greatly with people's normal growth process, and similarity, repeatability and the operability of these models are poor.Therefore, the filum terminale mechanical strain model of creating a standard, needing design filum terminale tractor is necessary with the pathophysiological process of simulation people's tethered cord syndrome.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of filum terminale tractor is provided, the clinical similarity of animal model, repeatability and good operability that this device is set up.
In order to achieve the above object, the present invention includes sleeve nail, turncap and card pin; Described sleeve nail comprises the sleeve with inner chamber, and be arranged on the annular rising wood of sleeve upper end and the screw division of lower end, the inner chamber of sleeve part is in communication with the outside, and sleeve part bottom is provided with the sleeve nail side opening vertical with its longitudinal axis, and the top of rising wood offers some rising wood apertures;
Described turncap comprises wound portion and the fixed part that step arranges, fixed part diameter is greater than wound portion, fixed part upper end is provided with dial portion, and the lower end of wound portion offers the turncap side opening vertical with the longitudinal axis of fixed part, and the top of dial portion offers some dial portion apertures;
Described card pin comprises handle part, and is vertically set on the pin portion of handle part both sides.
Described screw division diameter is 2.5mm, and length is 10mm; The intracavity diameter of sleeve part is 4mm, and inner chamber height is 9mm, and the external diameter of rising wood is 10mm, and internal diameter is 4mm; Sleeve part and outer edge wall thickness 1mm, sleeve part side opening is positioned at the 2mm place, lower end of sleeve part, is diameter 0.3-0.4mm circle.
Described wound portion diameter is 2mm, and length is 4mm; Fixed part diameter is 4mm, and length is 5mm; Dial portion, is the patty of diameter 10mm, thick 1mm, and wound portion side opening is opened in the 2mm place, lower end of wound portion, is the circle of diameter 0.3-0.4mm.
Described rising wood aperture is opened in rising wood top, and is opened in the center of circle, top taking rising wood as the center of circle, and on the circle that diameter is 8mm, rising wood aperture is 6 that spacing equates, and rising wood hole diameter is 1mm.
Described dial portion aperture is opened in dial portion top, and is opened in the center of circle, top taking dial portion as the center of circle, and on the circle that diameter is 8mm, dial portion aperture is 6 that spacing equates, and dial portion hole diameter is 1mm.
The diameter of the pin portion of described card pin is 1mm, and length is 2mm, and two pin portions are parallel, and spacing is 7mm.
The rising wood aperture that described card pin arranges by correspondence and dial portion aperture are fixed sleeve nail and turncap.
The fixed part of described turncap is arranged in the inner chamber of sleeve part.
Compared with prior art, current Tethered Spinal Cord technology is suspended counterweight tractive filum terminale in midair by pulley system and is realized, and not only limited the freely movable of animal, and traction strength is subject to the impact of animal position, the less stable of model.The present invention implants sleeve nail, sleeve nail is connected with turncap, postoperative can by rotate turncap make spinal cord stretch, this device not only can be simulated the pathophysiological process of people's tethered cord syndrome, and animal can be freely movable, especially draw strength steady, the present invention is used in animals, the clinical similarity of the animal model of foundation, repeatability and good operability.
Brief description of the drawings
Fig. 1 is the schematic diagram of sleeve nail of the present invention;
Fig. 2 is turncap schematic diagram of the present invention;
Fig. 3 is the schematic diagram of rising wood of the present invention;
Fig. 4 is the schematic diagram of dial portion of the present invention;
Fig. 5 is the schematic diagram that the present invention blocks pin;
Fig. 6 is work schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 5, a kind of filum terminale tractor of the present invention, comprises sleeve nail 13, turncap 14 and card pin 15; Described sleeve nail 13 comprises the sleeve part 2 with inner chamber, and be arranged on the annular rising wood 1 of sleeve part 2 upper ends and the screw division 3 of lower end, the inner chamber of sleeve part 2 is in communication with the outside, sleeve part 2 bottoms are provided with the sleeve nail side opening 4 vertical with its longitudinal axis, screw division 3 diameters are 2.5mm, and length is 10mm; The intracavity diameter of sleeve part 2 is 4mm, and inner chamber height is 9mm, and the external diameter of rising wood is 10mm, and internal diameter is 4mm; Sleeve part 2 and outer edge 1 wall thickness 1mm, sleeve nail side opening 4 is positioned at the 2mm place, lower end of sleeve part 2, for diameter 0.3-0.4mm circle, rising wood aperture 5 is opened in rising wood 1 top, and be opened in the center of circle, top taking rising wood 1 as the center of circle, diameter is on the circle of 8mm, rising wood aperture 5 for spacing equate 6, rising wood aperture 5 diameters are 1mm;
Referring to Fig. 3 and Fig. 4, turncap 14 comprises wound portion 8 and the fixed part 7 that step arranges, fixed part 7 diameters are greater than wound portion 8, fixed part 7 upper ends are provided with dial portion 6, the lower end of wound portion 8 offers the turncap side opening 9 vertical with the longitudinal axis of fixed part 7, wound portion 8 diameters are 2mm, and length is 4mm; Fixed part 7 diameters are 4mm, and length is 5mm; Dial portion 6, for the patty of diameter 10mm, thick 1mm, wound portion side opening 9 is opened in 8 2mm places, lower end of wound portion, and dial portion aperture 10 is opened in dial portion 6 tops, and is opened in the center of circle, top taking dial portion 6 as the center of circle, diameter is on the circle of 8mm, dial portion aperture 10 for spacing equate 6, dial portion aperture 10 diameters are 1mm, the fixed part 7 of turncap 14 is arranged in the inner chamber of sleeve part 2.
Referring to Fig. 5, card pin 15 comprises handle part 11, and be vertically set on the pin portion 12 of handle part 11 both sides, the diameter of the pin portion 8 of card pin 15 is 1mm, length is 2mm, two pin portions 8 are parallel, and spacing is 7mm, and the rising wood aperture 5 that card pin 15 arranges by correspondence and dial portion aperture 10 are by fixing to sleeve nail 13 and turncap 14.
Referring to Fig. 6, when use, after the sacrum vertebral body of location animal, being threaded on the sacrum vertebral body after tapping by self screw division 3 by sleeve nail 13, make sleeve nail side opening 4 relative with filum terminale, the fixed part of turncap 14 7 is placed in the cavity of sleeve part 2, side opening 4 and turncap side opening 9 are followed closely through sleeve in one end of silk thread, and in the 9 places knotting of turncap side opening, one end of silk thread is fixed on turncap, the other end ligation of silk thread is fixed on filum terminale, cuts off filum terminale, sew up wound in ligation point tail side.
Rotate turncap 14, by the labelling on turncap 14, every rotation one hole, elongates 1mm by spinal cord.The rising wood aperture 5 arranging by correspondence with card pin 15 after rotating and dial portion aperture 10 are fixed as one sleeve nail and turncap sleeve nail 13 and turncap 14, take out card pin 15 before again rotating.
Be mainly used in the animal such as cat, dog.
Claims (8)
1. a filum terminale tractor, is characterized in that: comprise sleeve nail (13), turncap (14) and card pin (15); Described sleeve nail (13) comprises the sleeve part (2) with inner chamber, and be arranged on the annular rising wood (1) of sleeve part (2) upper end and the screw division (3) of lower end, the inner chamber of sleeve part (2) is in communication with the outside, sleeve part (2) bottom is provided with the sleeve nail side opening (4) vertical with its longitudinal axis, and the top of rising wood (1) offers some rising wood apertures (5);
Described turncap (14) comprises wound portion (8) and the fixed part (7) that step arranges, fixed part (7) diameter is greater than wound portion (8), fixed part (7) upper end is provided with dial portion (6), the lower end of wound portion (8) offers the turncap side opening (9) vertical with the longitudinal axis of fixed part (7), and the top of dial portion (6) offers some dial portion apertures (10);
Described card pin (15) comprises handle part (11), and is vertically set on the pin portion (12) of handle part (11) both sides.
2. a kind of filum terminale tractor according to claim 1, is characterized in that: described screw division (3) diameter is 2.5mm, and length is 10mm; The intracavity diameter of sleeve part (2) is 4mm, and inner chamber height is 9mm, and the external diameter of rising wood is 10mm, and internal diameter is 4mm; Sleeve part (2) and outer edge (1) wall thickness 1mm, sleeve part side opening (4) is positioned at the 2mm place, lower end of sleeve part (2), is diameter 0.3-0.4mm circle.
3. a kind of filum terminale tractor according to claim 1, is characterized in that: described wound portion (8) diameter is 2mm, and length is 4mm; Fixed part (7) diameter is 4mm, and length is 5mm; Dial portion (6), is the patty of diameter 10mm, thick 1mm, and wound portion side opening (9) is opened in the 2mm place, (8) lower end of wound portion, is the circle of diameter 0.3-0.4mm.
4. a kind of filum terminale tractor according to claim 1, it is characterized in that: described rising wood aperture (5) is opened in rising wood (1) top, and be opened in the center of circle, top taking rising wood (1) as the center of circle, diameter is on the circle of 8mm, rising wood aperture (5) for spacing equate 6, rising wood aperture (5) diameter is 1mm.
5. a kind of filum terminale tractor according to claim 1, it is characterized in that: described dial portion aperture (10) is opened in dial portion (6) top, and be opened in the center of circle, top taking dial portion (6) as the center of circle, diameter is on the circle of 8mm, dial portion aperture (10) for spacing equate 6, dial portion aperture (10) diameter is 1mm.
6. a kind of filum terminale tractor according to claim 1, is characterized in that: the diameter of the pin portion (8) of described card pin (15) is 1mm, and length is 2mm, and two pin portions (8) are parallel, and spacing is 7mm.
7. according to a kind of filum terminale tractor described in claim 4 or 5 or 6, it is characterized in that: the rising wood aperture (5) that described card pin (15) arranges by correspondence and dial portion aperture (10) are by fixing to sleeve nail (13) and turncap (14).
8. a kind of filum terminale tractor according to claim 1, is characterized in that: the fixed part (7) of described turncap (14) is arranged in the inner chamber of sleeve part (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410240497.4A CN103976802B (en) | 2014-05-30 | 2014-05-30 | A kind of filum terminale tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410240497.4A CN103976802B (en) | 2014-05-30 | 2014-05-30 | A kind of filum terminale tractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103976802A true CN103976802A (en) | 2014-08-13 |
| CN103976802B CN103976802B (en) | 2016-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410240497.4A Expired - Fee Related CN103976802B (en) | 2014-05-30 | 2014-05-30 | A kind of filum terminale tractor |
Country Status (1)
| Country | Link |
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| CN (1) | CN103976802B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2907571Y (en) * | 2006-05-17 | 2007-06-06 | 中国人民解放军第三军医大学第一附属医院 | Equipment for experiment of animal spinal cord stretching injury |
| US20110152933A1 (en) * | 2004-12-08 | 2011-06-23 | Interventional Spine, Inc. | Method and apparatus for spinal stabilization |
| CN102626349A (en) * | 2012-04-25 | 2012-08-08 | 中国人民解放军第三军医大学第三附属医院 | Device for exerting stretch stress for peripheral nerves |
| CN202637178U (en) * | 2012-06-15 | 2013-01-02 | 中国人民解放军第四军医大学 | High-repeatability multipurpose injury instrument for animal experiment |
-
2014
- 2014-05-30 CN CN201410240497.4A patent/CN103976802B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110152933A1 (en) * | 2004-12-08 | 2011-06-23 | Interventional Spine, Inc. | Method and apparatus for spinal stabilization |
| CN2907571Y (en) * | 2006-05-17 | 2007-06-06 | 中国人民解放军第三军医大学第一附属医院 | Equipment for experiment of animal spinal cord stretching injury |
| CN102626349A (en) * | 2012-04-25 | 2012-08-08 | 中国人民解放军第三军医大学第三附属医院 | Device for exerting stretch stress for peripheral nerves |
| CN202637178U (en) * | 2012-06-15 | 2013-01-02 | 中国人民解放军第四军医大学 | High-repeatability multipurpose injury instrument for animal experiment |
Non-Patent Citations (1)
| Title |
|---|
| 兰宾尚等: "脊髓拴系综合征脊髓损伤和康复的实验研究", 《中国康复医学杂志》, vol. 24, no. 02, 28 February 2009 (2009-02-28) * |
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| Publication number | Publication date |
|---|---|
| CN103976802B (en) | 2016-06-29 |
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Granted publication date: 20160629 Termination date: 20190530 |
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| CF01 | Termination of patent right due to non-payment of annual fee |