CN204106810U - A kind of veress needle of air bag instruction location - Google Patents
A kind of veress needle of air bag instruction location Download PDFInfo
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- CN204106810U CN204106810U CN201420578713.1U CN201420578713U CN204106810U CN 204106810 U CN204106810 U CN 204106810U CN 201420578713 U CN201420578713 U CN 201420578713U CN 204106810 U CN204106810 U CN 204106810U
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- stylophore
- inner chamber
- veress needle
- air bag
- valve body
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Abstract
The utility model discloses the veress needle of a kind of air bag instruction location, comprise outer pin, inner core, and the stylophore of fixing outer pin, stylophore open rearward end, rear end is provided with an elastic bag, stylophore is provided with rotary valve between opening and inner chamber, inner chamber is communicated to through rotary valve, rotary valve comprises the cylindrical shell with stylophore one, and the valve body closely cooperated in cylindrical shell, valve body one end is provided with revolves handle, the other end stretches out cylindrical shell and forms joint, the corresponding stylophore opening of valve body is provided with first passage, and one end open is positioned at the second channel being communicated to inner chamber that joint other end opening formed when first passage is in closed condition.This utility model improves based on existing veress needle, changes the method whether entering abdominal cavity into the mode of carbon dioxide and existing inspection veress needle.Without the need to preparing injector to inject normal saline to judge, only air need be utilized.Puncture needle makes it conveniently connect carbon dioxide to the improvement that rotary valve carries out, and valve transfer is very convenient.
Description
Technical field
This utility model relates to medical instruments field, relates in particular to the veress needle for laparoscopic surgery of a kind of air bag instruction location.
Background technology
Veress needle is used in laparoscopic surgery judging that whether inserting needle position is correct and be filled with the operating theater instruments that carbon dioxide forms pneumoperitoneum.Existing pin comprises needle body and is positioned at the inlet channel of needle rear end, and operation is in use such:
First, veress needle vertical webs is thrust abdominal cavity from umbilicus is other, breakthrough sense during experience and inserting needle according to operative doctor judges whether veress needle enters abdominal cavity.Whether if the former can not clearly judge, and then judge by sessile drop method, namely take out normal saline with 5ml syringe, the inlet channel of access veress needle rear end, extracts syringe tube core, reduced judge whether veress needle enters abdominal cavity by observation normal saline.The defect of this design is: judge whether veress needle enters abdominal cavity and do not have objective clear and definite index, be difficult to grasp concerning abecedarian, inserting needle is easily caused to be crossed dark or excessively shallow, cross and deeply can stab abdominal viscera and even enter retroperitoneal space, cross shallow, carbon dioxide can be injected subcutaneous, form subcutaneous emphysema.And sessile drop method neither goldstandard, if the normal saline that veress needle enters in hollow organ syringe also can reduce, and the method is loaded down with trivial details, wastes time and energy.
Utility model content
Goal of the invention: the purpose of this utility model is to provide a kind of veress needle utilizing air bag negative pressure deformation principle to detect inserting needle position.
Technical scheme: for achieving the above object, the veress needle of a kind of air bag instruction location of the present utility model, comprise outer pin, inner core, and the stylophore of fixing outer pin, described stylophore open rearward end, rear end is provided with an elastic bag, described stylophore is provided with rotary valve between opening and inner chamber, inner chamber is communicated to through rotary valve, described rotary valve comprises the cylindrical shell with stylophore one, and the valve body closely cooperated in cylindrical shell, valve body one end is provided with revolves handle, the other end stretches out cylindrical shell and forms joint, the corresponding stylophore opening of valve body is provided with first passage, and one end open is positioned at the second channel being communicated to inner chamber that joint other end opening formed when first passage is in closed condition.
The shape of first passage of the present utility model and second channel can have a variety of, and first passage and second channel will ensure to communicate, and as wherein a kind of preferred mode, described first passage is vertical cylindrical passageway; Described valve body surface is provided with one and half arc flutings, the horizontal cylindricality channel connection that half arc fluting one end and the nearly tip side of second channel are formed, the corresponding inner chamber of other end opening.This design is beneficial to modeling and manufacture, first passage is parallel with second channel and do not communicate, the switching that half-twist can be realized valve two states will be revolved: when first passage and stylophore opening, inner space time, second channel opening is stopped by the cylindrical shell of rotary valve, judge whether inserting needle puts in place, find after mentioning patient's skin of abdomen that elastic bag becomes flat because of negative pressure, namely illustrate that veress needle arrives abdominal cavity; When revolving after half-twist, first passage is stopped by rotary valve cylindrical shell, and second channel opening points to stylophore inner chamber, connects carbon dioxide airway, be injected in abdominal cavity of patients through second channel, inner chamber, inner core in the joint of valve body.
Valve body and cylindrical shell closely cooperate, and is therefore not easy to loosen.In order to the stability of both reinforcements cooperation further, described valve body closely revolves and place is provided with cannelure, and cylinder inner surface is provided with the raised line corresponding with described cannelure.
Described inner core to be placed in outer pin and to enter inner chamber from stylophore front end and is connected with the elastic mechanism being contained in inner chamber; Inner core front end is closed obtuse body, and obtuse body side surface is provided with the side mouth identical with outer pin needle point opening direction.Carbon dioxide enters abdominal cavity from side mouth, and obtuse body can not cause peritoneum and internal organs after ensureing puncture and stab in abdominal cavity.
As further optimization of the present utility model, described inner core is positioned at inner chamber end and is provided with horizontal baffle, and horizontal baffle one end is connected with elastic mechanism, and the other end is provided with the block being placed on inner core.Block and baffle plate make inner core end be limited to interior intracavity, can not be ejected inner chamber by elastic mechanism.
Under conventional sense, the obtuse body of described inner core front end just surmounts outer pin needle point.Thus ensureing when puncturing, resistance props up the inside cavity direction motion of inner core, and in time spiking through skin and abdominal wall tissue enters abdominal cavity, lose resistance inner core under the effect of elastic mechanism and reset, pause toroidal in formation front end.
Stylophore of the present utility model and rotary valve are made with the plastics of transparent material, to facilitate the opening and trend of seeing first passage and second channel clearly.Described elastic bag is that rubber or silica gel material are made.Described elastic mechanism includes but not limited to spring.
Beneficial effect: this utility model improves based on existing veress needle, changes and whether enters abdominal cavity method into the mode of carbon dioxide and existing inspection veress needle.Without the need to preparing injector to inject normal saline to judge, only air need be utilized.This puncture needle makes it conveniently connect carbon dioxide to the improvement that rotary valve carries out, and valve transfer is very convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the generalized section of Fig. 1 stylophore and elastic bag;
Fig. 3 is the structural representation of rotary valve, and now elastic bag becomes flat because of negative pressure;
Fig. 4 is the structural representation of outer pin and inner core end;
Fig. 5 is the left view of Fig. 4;
The generalized section of valve body when Fig. 6 is second channel conducting;
The generalized section of valve body when Fig. 7 is first passage conducting is also the schematic cross-section of A-A in Fig. 6.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is further described.
As Fig. 1, Fig. 2, shown in Fig. 3, the veress needle of a kind of air bag instruction location of the present utility model, comprise outer pin 1, inner core 2, and the transparent stylophore 3 of fixing outer pin 1, stylophore 3 rear end is provided with the elastic bag 4 that a silica gel or elastomeric material are made, opening 5 is established in stylophore 3 rear end, inner chamber 7 is communicated to through rotary valve 6, stylophore 3 is provided with rotary valve 6 between opening 5 and inner chamber 7, rotary valve 6 comprises the cylindrical shell 61 with stylophore 3 one, and the valve body 62 closely cooperated in cylindrical shell 61, valve body 62 one end is provided with revolves 63, the other end stretches out cylindrical shell 61 and forms joint 64, valve body 62 corresponding stylophore 3 opening is provided with first passage 65, and one end open is positioned at the second channel 66 being communicated to inner chamber 7 that joint 64 other end opening formed when first passage 65 is in closed condition.Valve body 62 closely revolves and 63 places is provided with cannelure 67, and cylindrical shell 61 inner surface is provided with the raised line 68 corresponding with cannelure 67.
As shown in Figure 6, Figure 7, first passage 65 is vertical cylindrical passageway to wherein a kind of embodiment of first passage 65, second channel 66; Valve body 62 surface is provided with one and half arc fluting 661, half arc fluting 661 one end and is communicated with the horizontal cylindrical passageway 662 that nearly joint 64 end of second channel 66 is formed, the corresponding inner chamber 7 of other end opening.
Again shown in composition graphs 2, Fig. 4, Fig. 5, inner core 2 to be placed in outer pin 1 and to enter inner chamber 7 from stylophore 3 front end and is connected with the elastic mechanism 8 being contained in inner chamber 7; Inner core 2 front end is closed obtuse body 21, and obtuse body 21 side is provided with the side mouth 22 identical with outer pin 1 needle point 11 opening direction.Inner core 2 is positioned at inner chamber 7 end and is provided with horizontal baffle 23, and horizontal baffle one end is connected with elastic mechanism 8, and the other end is provided with the block 9 being placed on inner core 2.Under conventional sense, the obtuse body 21 of inner core 2 front end just surmounts outer pin 1 needle point 11, thus ensure when puncturing, resistance props up the inside cavity direction motion of inner core, in time spiking through skin and abdominal wall tissue enters abdominal cavity, lose resistance inner core under the effect of elastic mechanism to reset, pause toroidal in formation front end.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from this utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. the veress needle of an air bag instruction location, comprise outer pin, inner core, and the stylophore of fixing outer pin, it is characterized in that: described stylophore rear end is provided with an elastic bag, stylophore open rearward end, inner chamber is communicated to through rotary valve, described stylophore is provided with rotary valve between opening and inner chamber, described rotary valve comprises the cylindrical shell with stylophore one, and the valve body closely cooperated in cylindrical shell, valve body one end is provided with revolves handle, the other end stretches out cylindrical shell and forms joint, the corresponding stylophore opening of valve body is provided with first passage, and one end open is positioned at the second channel being communicated to inner chamber that joint other end opening formed when first passage is in closed condition.
2. the veress needle of a kind of air bag instruction location according to claim 1, is characterized in that: described first passage is vertical cylindrical passageway; Described valve body surface is provided with one and half arc flutings, the horizontal cylindricality channel connection that half arc fluting one end and the nearly tip side of second channel are formed, the corresponding inner chamber of other end opening.
3. the veress needle of a kind of air bag instruction location according to claim 2, is characterized in that: described valve body closely revolves and place is provided with cannelure, and cylinder inner surface is provided with the raised line corresponding with described cannelure.
4. the veress needle of a kind of air bag instruction location according to claim 1, is characterized in that: described inner core to be placed in outer pin and to enter inner chamber from stylophore front end and is connected with the elastic mechanism being contained in inner chamber; Inner core front end is closed obtuse body, and obtuse body side surface is provided with the side mouth identical with outer pin needle point opening direction.
5. the veress needle of a kind of air bag instruction location according to claim 4, is characterized in that: described inner core is positioned at inner chamber end and is provided with horizontal baffle, and horizontal baffle one end is connected with elastic mechanism, and the other end is provided with the block being placed on inner core.
6. the veress needle of a kind of air bag instruction location according to claim 4 or 5, is characterized in that: under conventional sense, the obtuse body of described inner core front end just surmounts outer pin needle point.
7. the veress needle of a kind of air bag instruction location according to claim 1, is characterized in that: described elastic bag is that silica gel or elastomeric material are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420578713.1U CN204106810U (en) | 2014-10-08 | 2014-10-08 | A kind of veress needle of air bag instruction location |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420578713.1U CN204106810U (en) | 2014-10-08 | 2014-10-08 | A kind of veress needle of air bag instruction location |
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| Publication Number | Publication Date |
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| CN204106810U true CN204106810U (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420578713.1U Active CN204106810U (en) | 2014-10-08 | 2014-10-08 | A kind of veress needle of air bag instruction location |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104287812A (en) * | 2014-10-08 | 2015-01-21 | 南京市妇幼保健院 | Airbag indicating and locating pneumoperitoneum needle |
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2014
- 2014-10-08 CN CN201420578713.1U patent/CN204106810U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104287812A (en) * | 2014-10-08 | 2015-01-21 | 南京市妇幼保健院 | Airbag indicating and locating pneumoperitoneum needle |
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| GR01 | Patent grant |