CN203647401U - Adjustable pull expander for endoscopic surgery of trigeminal nerve at round hole of skull base - Google Patents
Adjustable pull expander for endoscopic surgery of trigeminal nerve at round hole of skull base Download PDFInfo
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- CN203647401U CN203647401U CN201420033168.8U CN201420033168U CN203647401U CN 203647401 U CN203647401 U CN 203647401U CN 201420033168 U CN201420033168 U CN 201420033168U CN 203647401 U CN203647401 U CN 203647401U
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- tractive
- dilator
- upper support
- lower support
- support
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Abstract
The utility model discloses an adjustable pull expander for an endoscopic surgery of a trigeminal nerve at a round hole of a skull base. The adjustable pull expander for the endoscopic surgery comprises an upper support of the pull expander, a middle extender and a lower support of the pull expander, an opening is opened in each of the bottoms of the upper and lower supports of the pull expander, the opening of the upper support of the pull expander is opposite to the opening of the lower support of the pull expander,two side ends of the upper support of the pull expander and two side ends of the lower support of the pull expander are connected through the middle extender, a skin fixing retractor is arranged at one side of the upper end of the upper support of the pull expander, a lower notch edge fixing groove is formed in the lower end of the lower support of the pull expander, and the section of the bottom of the lower notch edge fixing groove is trapezoidal. The adjustable pull expander for the endoscopic surgery of the trigeminal nerve at the round hole of the skull base is mainly used for the selective high level trigeminal neurotomy at the round hole of the skull base, is reasonable and simple in structure, is easy to operate, is convenient to use, is economical and practical, and is capable of precisely and completely exposing the surgical field.
Description
Technical field
This utility model relates to medical instruments field, particularly adjustable tractive dilator for basis cranii circular hole place nervi trigeminus operation under a kind of scope.
Background technology
Trigeminal neuralgia generally has 2 kinds of methods on operative treatment at present, one is intracranial vessel nerve decompression or intracranial nervi trigeminus nerve-selective amputation, one is the outer nervi trigeminus amputation of cranium, 2 kinds of methods respectively have its advantage, also respectively there is its shortcoming: the necessary operation of opening cranium of intracranial vessel nerve decompression or intracranial nervi trigeminus nerve-selective amputation, itself there is certain risk and may occur severe complication (death), nearly all patient can have the feared state of mind to operation of opening cranium, if patient has other serious underlying diseases or the unsuitable operation of opening cranium of elderly patient itself.The expense of operation of opening cranium is simultaneously high; And the outer nervi trigeminus amputation of cranium has not open cranium, there is no the risk of operation of opening cranium, patient is generally easy to accept, and expense is low simultaneously, has obviously alleviated patient's burden.Add that we adopt intranasal videoendoscopic surgery, operation wound is little, and we select the neural high-order amputation in basis cranii circular hole place, its relapse rate is extremely low, suitable with operation of opening cranium effect, therefore intranasal mirror nervi trigeminus basis cranii circular hole amputation has good promotional value, and we have carried out operation for many years, have obtained fabulous curative effect and patient's evaluation.But also do not have at present one reasonable in design, easy to use, surgical field of view exposes good tractive dilator, even if there are now the uses such as some nasal sinuses dilators and maxillary sinus drag hook, but neither one is applicable to nervi trigeminus basis cranii circular hole amputation under scope.Therefore need the tractive dilator of a simply constructed practicality of utility model can in the time carrying out nervi trigeminus nerve-selective amputation, better expose pterygopalatine fossa.
Utility model content
For above problem, this utility model is the adjustable tractive dilator of basis cranii circular hole place nervi trigeminus operation under a kind of scope, this mechanism is mainly used in the high-order selective rhizotomy art of the neural basis cranii of nervi trigeminus, its architecture is simple, reasonable in design, easy operating, and easy to use, economical and practical, can be accurate, expose fully surgical field of view, for reaching this object, this utility model provides the adjustable tractive dilator of basis cranii circular hole place nervi trigeminus operation under a kind of scope, comprise tractive dilator upper support, middle part extender and tractive dilator lower support, described tractive dilator upper support is relative with tractive dilator lower support opening, described tractive dilator upper support is relative with tractive dilator lower support opening, two sides of described tractive dilator upper support and tractive dilator lower support are all connected by middle part extender, one side of described tractive dilator upper support upper end has skin to fix tractive hook, there is otch lower edge holddown groove described tractive dilator lower support lower end, the cross section of described otch lower edge holddown groove bottom grooved is trapezoidal, described skin fixing tractive hook outside and otch lower edge holddown groove inwall have one deck protective pad.
As further improvement of the utility model, described middle part extender is connecting screw rod, all there is screw described tractive dilator upper support and two side ends of tractive dilator lower support, described connecting screw rod is arranged on tractive dilator upper support and tractive dilator lower support side end all to be had in screw tractive dilator upper support is connected with tractive dilator lower support, this utility model can utilize connecting screw rod as middle part extender, when operation, can regulate respective distance by the screw rod that is rotatably connected, which is finely tuned, but operate relatively easy.
As further improvement of the utility model, described middle part extender comprises expansion link and regulating part, described expansion link is connected tractive dilator upper support with tractive dilator lower support, described expansion link comprises shank and fixed bar, described shank is plugged in fixed bar, described fixed bar one side is porose, described regulating part end is fixed shank through fixed bar hole, described regulating part is in fixing tractive hook one side of skin, this utility model can utilize expansion link as middle part extender, regulate more convenient by expansion link, but degree of regulation is not high, because this utility model is for basis cranii circular hole place nervi trigeminus hands art under scope, therefore regulating part need be in fixing tractive hook one side of skin.
As further improvement of the utility model, the fixed bar length of described expansion link is fixed, the shank side of described expansion link has scale, because this utility model is mainly used in nervi trigeminus operation in basis cranii circular hole place under scope, the different Len req of operation crowd can be different, therefore preferably scale is set so that surgical staff carries out length adjustment.
As further improvement of the utility model, described tractive dilator lower support cross section is S type, described otch lower edge holddown groove is below the fixing tractive hook of skin, because this utility model is for nervi trigeminus operation in basis cranii circular hole place under scope, use this design in order to meet human mouth shape, this design otch lower edge holddown groove can better be stuck in the incision of eyetooth nest.
As further improvement of the utility model, end and the side of the otch lower edge holddown groove of skin fixing tractive hook, tractive dilator lower support and the tractive dilator lower support of described tractive dilator upper support, tractive dilator upper support all have chamfering, during for fear of operation, stave patient skin, end and the side of the otch lower edge holddown groove of the skin of tractive dilator upper support, tractive dilator upper support fixing tractive hook, tractive dilator lower support and tractive dilator lower support all can be set to chamfering.
As further improvement of the utility model, the fixing tractive hook hook portion width of described skin is 3cm, the width of described otch lower edge holddown groove is 3cm, and because the otch of nervi trigeminus unit operation only has 3cm, therefore the width of the fixing tractive hook hook portion width of skin and otch lower edge holddown groove is 3cm.
As further improvement of the utility model, described adjustable type tractive dilator material is the martensitic chromium rustless steel 7C27MO2 containing molybdenum, because this utility model is mainly used in nervi trigeminus operation in basis cranii circular hole place under scope, to material corrosion resistance, and sterilization requires high, and have corresponding hardness requirement, therefore need to adopt the above-mentioned martensitic chromium rustless steel 7C27MO2 containing molybdenum as main material.
As further improvement of the utility model, the thick 2-3cm of described protective pad, although can avoid the fixing tractive hook of skin and otch lower edge holddown groove scratch skin after protective pad is set, owing to being subject to operation restriction, thickness can only be 2-3cm.
As further improvement of the utility model, described protective pad material is cotton, considers that operation needs this utility model protective pad material need adopt cotton, adopts this material to be easy on the one hand sterilization, is not easy on the other hand to damage.
This utility model is the adjustable tractive dilator of basis cranii circular hole place nervi trigeminus operation under a kind of scope, this mechanism utilizes adjustable type tractive dilator that Mucosa of lip is separated with eyetooth nest, thereby indirectly expand the surgical field of view of pterygopalatine fossa in nervi trigeminus nerve-selective amputation, thereby make that operation technique is convenient to be had higher success rate, and little to corrective surgery injury, the apparatus that post-operative complication is few, there is one deck protective pad this outer skin fixing tractive hook outside and otch lower edge holddown groove inside, due to this utility model be perform the operation therefore tractive dilator for basis cranii circular hole place nervi trigeminus under scope can not be really up to the mark, therefore need to arrange protective pad to prevent the fixing tractive hook of skin and otch lower edge holddown groove scratch skin, in addition this patent can adopt special material manufacture to form, like this can cleaning and sterilizing, also can High Temperature High Pressure routine disinfection, sterilize very convenient.
Brief description of the drawings
Fig. 1 is a kind of example structure schematic diagram of this utility model;
Fig. 2 is the another kind of example structure schematic diagram of this utility model;
Member in figure is:
1, tractive dilator upper support; 2, the fixing tractive hook of skin; 3, connecting screw rod;
4, tractive dilator lower support; 5, otch lower edge holddown groove; 6, expansion link;
7, regulating part.
Detailed description of the invention
Below in conjunction with drawings and Examples, utility model is described in detail:
This utility model is the adjustable tractive dilator of basis cranii circular hole place nervi trigeminus operation under a kind of scope, and this mechanism is mainly used in nervi trigeminus nerve-selective amputation, and its architecture is simple, easy operating, and easy to use, economical and practical, can expose accurately, fully surgical field of view.
As a kind of embodiment of this utility model, this utility model provides the adjustable tractive dilator of basis cranii circular hole place nervi trigeminus operation under a kind of scope as shown in Figure 1, comprise tractive dilator upper support 1, middle part extender and tractive dilator lower support 4, opening is all arranged at described tractive dilator upper support 1 bottom and tractive dilator lower support 4 tops, described tractive dilator upper support 1 is relative with tractive dilator lower support 4 openings, 4 two sides of described tractive dilator upper support 1 and tractive dilator lower support are all connected by middle part extender, described middle part extender is connecting screw rod 3, all there is screw described tractive dilator upper support 1 and 4 two side ends of tractive dilator lower support, described connecting screw rod 3 is arranged on tractive dilator upper support 1 and tractive dilator lower support 4 side ends all to be had in screw tractive dilator upper support 1 is connected with tractive dilator lower support 4, this utility model can utilize connecting screw rod as middle part extender, when operation, can regulate respective distance by the screw rod that is rotatably connected, which is finely tuned, but operate relatively easy, one side of described tractive dilator upper support 1 upper end has skin to fix tractive hook 2, there is otch lower edge holddown groove 5 described tractive dilator lower support 4 lower ends, described tractive dilator lower support 4 cross sections are S type, described otch lower edge holddown groove is below the fixing tractive hook 2 of skin, because this utility model is for basis cranii circular hole place nervi trigeminus hands art under scope, use this design in order to meet human mouth shape, this design otch lower edge holddown groove can better be stuck in the incision of eyetooth nest, the fixing tractive hook 2 hook portion width of described skin are 3cm, the width of described otch lower edge holddown groove 5 is 3cm, because the otch of nervi trigeminus unit operation only has 3cm, therefore the width of the fixing tractive hook 2 hook portion width of skin and otch lower edge holddown groove 5 is 3cm, the cross section of described otch lower edge holddown groove 5 bottom grooveds is trapezoidal, fixing tractive hook 2 outsides of described skin and otch lower edge holddown groove 5 inwalls have one deck protective pad.
As the another kind of embodiment of this utility model, this utility model provides the adjustable tractive dilator of basis cranii circular hole place nervi trigeminus operation under a kind of scope as shown in Figure 2, comprise tractive dilator upper support 1, middle part extender and tractive dilator lower support 4, opening is all arranged at described tractive dilator upper support 1 bottom and tractive dilator lower support 4 tops, described tractive dilator upper support 1 is relative with tractive dilator lower support 4 openings, 4 two sides of described tractive dilator upper support 1 and tractive dilator lower support are all connected by middle part extender, described middle part extender comprises expansion link 6 and regulating part 7, described expansion link 6 is connected tractive dilator upper support 1 with tractive dilator lower support 4, described expansion link 6 comprises shank and fixed bar, described shank is plugged in fixed bar, described fixed bar one side is porose, described regulating part 7 ends are fixed shank through fixed bar hole, described regulating part (7) is in fixing tractive hook 2 one sides of skin, this utility model can utilize expansion link as middle part extender, regulate more convenient by expansion link, but degree of regulation is not high, because this utility model is for basis cranii circular hole place nervi trigeminus hands art under scope, therefore regulating part need be in fixing tractive hook one side of skin, the fixed bar length of described expansion link 6 is fixed, the shank side of described expansion link 6 has scale, because this utility model is mainly used in basis cranii circular hole place nervi trigeminus hands art under scope, the different Len req of operation crowd can be different, therefore preferably scale is set so that surgical staff carries out length adjustment, one side of described tractive dilator upper support 1 upper end has skin to fix tractive hook 2, there is otch lower edge holddown groove 5 described tractive dilator lower support 4 lower ends, described tractive dilator lower support 4 cross sections are S type, described otch lower edge holddown groove is below the fixing tractive hook 2 of skin, because this utility model is for basis cranii circular hole place nervi trigeminus hands art under scope, use this design in order to meet human mouth shape, this design otch lower edge holddown groove can better be stuck in the incision of eyetooth nest, the fixing tractive hook 2 hook portion width of described skin are 3cm, the width of described otch lower edge holddown groove 5 is 3cm, because the otch of nervi trigeminus unit operation only has 3cm, therefore the width of the fixing tractive hook 2 hook portion width of skin and otch lower edge holddown groove 5 is 3cm, the cross section of described otch lower edge holddown groove 5 bottom grooveds is trapezoidal, fixing tractive hook 2 outsides of described skin and otch lower edge holddown groove 5 inwalls have one deck protective pad.
In addition end and the side of the otch lower edge holddown groove 5 of fixing tractive hook 2, tractive dilator lower support 4 and tractive dilator lower support 4 of the skin of tractive dilator upper support 1 described in the utility model, tractive dilator upper support 1 all have chamfering, during for fear of operation, stave patient skin, end and the side of the otch lower edge holddown groove of the skin of tractive dilator upper support, tractive dilator upper support fixing tractive hook, tractive dilator lower support and tractive dilator lower support all can be set to chamfering.
In addition adjustable type tractive dilator material described in the utility model is the martensitic chromium rustless steel 7C27MO2 containing molybdenum, because this utility model is mainly used in nervi trigeminus operation in basis cranii circular hole place under scope, to material corrosion resistance, and sterilization requires high, and have corresponding hardness requirement, therefore need to adopt the above-mentioned martensitic chromium rustless steel 7C27MO2 containing molybdenum as main material.
In addition the thick 2-3cm of protective pad described in the utility model, although can avoid the fixing tractive hook of skin and otch lower edge holddown groove scratch skin after protective pad is set, but owing to being subject to operation restriction, thickness can only be 2-3cm, described protective pad material is cotton, consider that operation needs this utility model protective pad material need adopt cotton, adopt this material to be easy on the one hand sterilization, be not easy on the other hand to damage.
The above; it is only preferred embodiment of the present utility model; be not the restriction of this utility model being made to any other form, and according to any amendment or equivalent variations that technical spirit of the present utility model is done, still belong to this utility model scope required for protection.
Claims (8)
1. adjustable tractive dilator for basis cranii circular hole place nervi trigeminus operation under a scope, comprise tractive dilator upper support (1), middle part extender and tractive dilator lower support (4), it is characterized in that: opening is all arranged at described tractive dilator upper support (1) bottom and tractive dilator lower support (4) top, described tractive dilator upper support (1) is relative with tractive dilator lower support (4) opening, (4) two sides of described tractive dilator upper support (1) and tractive dilator lower support are all connected by middle part extender, one side of described tractive dilator upper support (1) upper end has skin to fix tractive hook (2), there is otch lower edge holddown groove (5) described tractive dilator lower support (4) lower end, the cross section of described otch lower edge holddown groove (5) bottom grooved is trapezoidal, described skin fixing tractive hook (2) outside and otch lower edge holddown groove (5) inwall have one deck protective pad.
2. adjustable tractive dilator for basis cranii circular hole place nervi trigeminus operation under a kind of scope according to claim 1, it is characterized in that: described middle part extender is connecting screw rod (3), all there is screw (4) two side ends of described tractive dilator upper support (1) and tractive dilator lower support, and described connecting screw rod (3) is arranged in the screw that tractive dilator upper support (1) all has with tractive dilator lower support (4) side end tractive dilator upper support (1) is connected with tractive dilator lower support (4).
3. adjustable tractive dilator for basis cranii circular hole place nervi trigeminus operation under a kind of scope according to claim 1, it is characterized in that: described middle part extender comprises expansion link (6) and regulating part (7), described expansion link (6) is connected tractive dilator upper support (1) with tractive dilator lower support (4), described expansion link (6) comprises shank and fixed bar, described shank is plugged in fixed bar, described fixed bar one side is porose, described regulating part (7) end is fixed shank through fixed bar hole, described regulating part (7) is in fixing tractive hook (2) one sides of skin.
4. under a kind of scope according to claim 3, basis cranii circular hole place nervi trigeminus is performed the operation with adjustable tractive dilator, it is characterized in that: the fixed bar length of described expansion link (6) is fixed, and the shank side of described expansion link (6) has scale.
5. adjustable tractive dilator for basis cranii circular hole place nervi trigeminus operation under a kind of scope according to claim 1, it is characterized in that: described tractive dilator lower support (4) cross section is S type, described otch lower edge holddown groove (5) is in the fixing tractive hook (2) of skin below.
6. adjustable tractive dilator for basis cranii circular hole place nervi trigeminus operation under a kind of scope according to claim 1, is characterized in that: end and side that the skin of described tractive dilator upper support (1), tractive dilator upper support (1) is fixed the otch lower edge holddown groove (5) of tractive hook (2), tractive dilator lower support (4) and tractive dilator lower support (4) all have chamfering.
7. adjustable tractive dilator for basis cranii circular hole place nervi trigeminus operation under a kind of scope according to claim 1, is characterized in that: it is 3cm that described skin is fixed tractive hook (2) hook portion width, and the width of described otch lower edge holddown groove (5) is 3cm.
8. under a kind of scope according to claim 1, basis cranii circular hole place nervi trigeminus is performed the operation with adjustable tractive dilator, it is characterized in that: the thick 2-3cm of described protective pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420033168.8U CN203647401U (en) | 2014-01-20 | 2014-01-20 | Adjustable pull expander for endoscopic surgery of trigeminal nerve at round hole of skull base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420033168.8U CN203647401U (en) | 2014-01-20 | 2014-01-20 | Adjustable pull expander for endoscopic surgery of trigeminal nerve at round hole of skull base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203647401U true CN203647401U (en) | 2014-06-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420033168.8U Withdrawn - After Issue CN203647401U (en) | 2014-01-20 | 2014-01-20 | Adjustable pull expander for endoscopic surgery of trigeminal nerve at round hole of skull base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203647401U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103750870A (en) * | 2014-01-20 | 2014-04-30 | 王中亮 | Adjustable traction expander for endoscopic skull base circular hole trigeminal nerve operation |
| CN113349851A (en) * | 2021-07-16 | 2021-09-07 | 华中科技大学同济医学院附属协和医院 | Duodenum intracavity spreader |
-
2014
- 2014-01-20 CN CN201420033168.8U patent/CN203647401U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103750870A (en) * | 2014-01-20 | 2014-04-30 | 王中亮 | Adjustable traction expander for endoscopic skull base circular hole trigeminal nerve operation |
| CN103750870B (en) * | 2014-01-20 | 2015-07-01 | 王中亮 | Adjustable traction expander for endoscopic skull base circular hole trigeminal nerve operation |
| CN113349851A (en) * | 2021-07-16 | 2021-09-07 | 华中科技大学同济医学院附属协和医院 | Duodenum intracavity spreader |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140618 Effective date of abandoning: 20150701 |
|
| RGAV | Abandon patent right to avoid regrant |