CN204839681U - Peritoneoscope puncture sheath - Google Patents
Peritoneoscope puncture sheath Download PDFInfo
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- CN204839681U CN204839681U CN201520651057.8U CN201520651057U CN204839681U CN 204839681 U CN204839681 U CN 204839681U CN 201520651057 U CN201520651057 U CN 201520651057U CN 204839681 U CN204839681 U CN 204839681U
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- outer tube
- peritoneoscope
- sheath
- casing
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Abstract
The utility model discloses a peritoneoscope puncture sheath, include the puncture cannula who has hollow structure and be divided into two sections tubular constructions, the puncture cannula overcoat has an outer pipe that is divided into two sections tubular constructions, and puncture cannula corresponding and adopt elastic element to connect with the junction of two sections tubular constructions of outer pipe, and the puncture cannula and the outer pipe part that are located elastic element one side all are the cylinder jacket tubular constructions that are enclosed by a plurality of side wall constructions, be equipped with a slider along the space round trip movement between puncture cannula and the outer pipe between puncture cannula and the outer pipe, the pull rod is connected to slider one end. The utility model discloses enlarge the operation technique scope, avoided the outer apparatus in abdominal cavity to crowd the operation technique of being convenient for.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly relates to a kind of peritoneoscope puncture sheath.
Background technology
Along with the development of medical skill, the application of laparoscopic surgical procedure surgical diseases is more and more general.Laparoscopic surgery wound is little, go out insufficiency of blood, recover to have become soon one of important surgical operation.
Perforator comprises puncture sheath and puncture needle, it is an important basic apparatus in laparoscopic surgery, wherein puncture sheath be for surgeon puncture in laparoscopic surgery abdominal cavity, to intraperitoneal conveying gas, and set up endoscope and operating theater instruments and use from during the passage in turnover abdominal cavity, the external world, its performance quality directly can react the smoothness of operation.
At present, conventional puncture sheath is made up of puncture casing, air valve, block set and sealing cap etc., and the wherein as a whole structure of puncture casing, puncture casing enters in human abdominal cavity, for the various operating theater instruments in the external world provides passage to complete the object of operation.But when laparoscopic surgery, because puncture casing has certain length and diameter is less, operating theater instruments can only be performed the operation to part abdominal tissue through puncture sheath passage.Due to the restriction of puncture casing, the abdominal tissue near puncture sheath can not be performed the operation, very big like this limit the scope that surgeon operates abdominal cavity apparatus, need if desired to carry out puncture next time, increase the misery of patient, work efficiency is reduced, operating time extends.
Utility model content
The purpose of this utility model is for overcoming the deficiencies in the prior art, provides a kind of peritoneoscope puncture sheath, to expand operation technique scope.
This utility model is by the following technical solutions:
A kind of peritoneoscope puncture sheath, comprise and there is hollow-core construction and the puncture casing being divided into two sections of tubular constructions, the outer tube that described puncture casing overcoat has one to be divided into two sections of tubular constructions, puncture casing is corresponding with the junction of two sections of tubular constructions of outer tube and adopt flexible member to be connected, the puncture casing and the outer tube part that are positioned at flexible member side are all the cylindrical sleeves structures surrounded by multiple side wall construction, a slide block moved around along the space between puncture casing and outer tube is provided with, one end of slide block one end cylinder lever connecting rod between described puncture casing and outer tube.
One end of described puncture casing connect a diameter be greater than puncture casing diameter annular base, in described annular base, obturator is installed.When laparoscopic surgery, puncture needle penetrates human abdominal cavity by the obturator in annular base, and when extracting, obturator closes automatically, and obturator makes to be in air-tight state between puncture casing and outside, thus sets up airtight passage for operating theater instruments enters abdominal cavity.
The side of described annular base connects gas valve.Inflated to intraperitoneal by this gas valve, be conducive to the carrying out of laparoscopic surgery.
Preferably, described pull bar is telescopic lever, due to the limited space between puncture casing and annular base, so pull bar can be designed to telescopic lever, thus saves space.
Preferably, the puncture casing of described flexible member side and outer tube part are all the cylindrical sleeves structures surrounded by four partial sidewall structures.The sidewall of puncture casing and outer tube not only can be divided into four parts, can be two parts or three parts etc., set according to practical situation.By flexible member, side wall construction is flicked, present " umbrella " shape structure at intraperitoneal, expose more abdominal tissue, be convenient to doctor's operation.
Preferably, one end of described outer tube is provided with boss.When the sheath that punctures enters human abdominal cavity, boss just in time blocks abdominal wall, makes it no longer further deeply.
Preferably, the base of described outer tube side wall construction is smooth edge.When inserting abdominal cavity, the base of the outer tube side wall construction opened is smooth edge, can not damage abdominal tissue.
Preferably, the described pull bar other end is between outer tube and annular base.When the length of outer tube is shorter, the pull bar other end can be arranged between outer tube and annular base, namely can satisfies the demand.
Preferably, the other end of described pull bar, through annular base, is positioned at outside one end of annular base.When the length of outer tube is longer, can by the other end of pull bar through annular base.
Preferably, described flexible member is torque spring.Torque spring is undertaken storing power by the distortion of oppose side wall junction part, utilizes, makes to be launched thing (puncture casing and outer tube) and have certain mechanical energy.
Preferably, the diameter 2 ~ 3mm less of the diameter of outer tube of described puncture casing, outer tube has certain diameter, can not cause secondary injury to patient.
Utility model works principle: when slide block is when inserting direction, abdominal cavity and in flexible member side, now, slide block is given and puncture casing side wall construction active force, makes multiple side wall constructions of puncture casing surround a cylindrical sleeves structure.Because puncture casing is corresponding with the junction of two sections of tubular constructions of outer tube and adopt flexible member to be connected, so multiple side wall construction of outer tube and puncture casing can surround a cylindrical sleeves structure simultaneously, now this puncture sheath can be entered human abdominal cavity.
After puncture sheath enters abdominal cavity, pull bar is adopted slide block to be shifted to the opposite side (inserting the rightabout in direction, abdominal cavity) of flexible member, now, flexible member plays a role and the side wall construction of puncture casing and outer tube to be flicked simultaneously, form a umbrella-shaped structure, according to the elasticity size of flexible member, the centrage of the length direction of side wall construction and the vertical line of abdominal wall are 45 ~ 90 degree.
When laparoscopic surgery is complete, slide block is moved to the side of flexible member, make puncture casing and the closed tubular structure that formed of outer tube extract abdominal cavity.
The beneficial effects of the utility model are:
Existing laparoscope puncture casing is complete cannula-like structure, and this utility model has outer tube at puncture casing overcoat, and puncture casing and outer tube are all made up of several side wall constructions, when entering abdominal cavity, several side wall constructions are opened simultaneously, expand operation technique scope, avoid apparatus outside abdominal cavity crowded, be convenient to operation technique.
Accompanying drawing explanation
Fig. 1 and Fig. 3 is this utility model structural representation.
Fig. 2 is the part-structure schematic top plan view after this utility model enters abdominal cavity.
Fig. 4 is the structural representation after this utility model enters abdominal cavity.
Wherein, 1, puncture casing, 2, base, 3, obturator, 4, outer tube, 5, torque spring, 6, slide block, 7, pull bar, 8, gas valve, 9, smooth edge, 10, boss, 11, abdominal wall.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Embodiment 1
As shown in Figure 1, a kind of peritoneoscope puncture sheath, comprise the puncture casing 1 of a hollow-core construction, one end of described puncture casing 1 connects the annular base 2 that a diameter is greater than puncture casing 1 diameter, be provided with obturator 3 in described annular base 2, the side of described annular base 2 connects gas valve 8.
As shown in Figure 2, described puncture casing 1 overcoat has outer tube 4, puncture casing 1 and outer tube 4 are all made up of two sections of tubular constructions, puncture casing 1 is corresponding with the junction of two sections of tubular constructions of outer tube 4, and adopt torque spring 5 to connect, puncture casing 1 and outer tube 4 part of torque spring 5 side (in Fig. 1 left side) are all the cylindrical tubular shape surrounded by four side wall constructions, because puncture casing 1 and outer tube 4 are all surrounded by four side wall constructions, so at least need employing 4 torque springs it to be connected with another section of corresponding pipe, the base of outer tube 4 side wall construction is smooth edge 9.
The length of the outer tube 4 shown in Fig. 2 is shorter, is less than the half of puncture casing 1 length; The length of outer tube 4 also can be longer, as shown in Figure 3, but when the length of outer tube 4 is longer, and need by the other end of pull bar 7 through annular base 2.To meet the needs of practical situation.
Diameter 2 ~ the 3mm less of the diameter of outer tube 4 of described puncture casing 1.
Space between described puncture casing 1 and outer tube 4 is provided with slide block 6, one end of slide block 6 connects one end of telescopic lever 7, the other end of described pull bar 7 is between outer tube 4 and annular base 2, and pull bar 7 hauls slide block 6 and can move around in the space between puncture casing 1 and outer tube 4..
One end of described outer tube 4 is provided with boss 10, and when the sheath that punctures enters human abdominal cavity, boss 10 just in time blocks abdominal wall 11, makes it no longer further deeply.
The present embodiment operation principle: when slide block 6 is when inserting direction, abdominal cavity and on the left of torque spring 5, now, slide block 6 is given and puncture casing 1 side wall construction active force, makes multiple side wall constructions of puncture casing 1 surround a cylindrical sleeves structure.Because puncture casing 1 is connected by torque spring 5 with outer tube 4, so multiple side wall construction of outer tube 4 surrounds a cylindrical sleeves structure together with puncture casing 1, now this puncture sheath can be entered human abdominal cavity.
As shown in Figure 4, after puncture sheath enters abdominal cavity, boss 10 just in time blocks abdominal wall 11, make it no longer further deeply, now adopt pull bar 7 slide block 6 to be shifted to the right side (inserting the rightabout in direction, abdominal cavity) of torque spring 5, now, torque spring plays a role and the side wall construction of puncture casing 1 and outer tube 4 to be flicked simultaneously, form a umbrella-shaped structure, according to torque spring 5 elasticity size, the centrage of the length direction of side wall construction and the vertical line of abdominal wall 11 are 45 ~ 90 degree.
When laparoscopic surgery is complete, slide block 6 is moved to the left side of torque spring 5, make puncture casing 1 and the closed tubular structure that formed of outer tube 4 extract abdominal cavity.
After just having started to enter abdominal cavity in Fig. 4, puncture casing 1 and outer tube 4 do not open type (solid line) in a tubular form, and by the slip of slide block 6, puncture casing 1 and outer tube 4 are opened in umbrella (dotted line), and puncture casing 1 and all the other two sidewall sections of outer tube 4 do not draw.
Left side in the present embodiment, right side illustrate relative to the left side of structure in figure, right side.
By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the restriction not to this utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (10)
1. a peritoneoscope puncture sheath, it is characterized in that: comprise and there is hollow-core construction and the puncture casing being divided into two sections of tubular constructions, the outer tube that described puncture casing overcoat has one to be divided into two sections of tubular constructions, puncture casing is corresponding with the junction of two sections of tubular constructions of outer tube and adopt flexible member to be connected, the puncture casing and the outer tube part that are positioned at flexible member side are all the cylindrical sleeves structures surrounded by multiple side wall construction, a slide block moved around along the space between puncture casing and outer tube is provided with between described puncture casing and outer tube, one end of slide block one end cylinder lever connecting rod.
2. peritoneoscope puncture sheath as claimed in claim 1, is characterized in that: one end of described puncture casing connect a diameter be greater than puncture casing diameter annular base, in described annular base, obturator is installed.
3. peritoneoscope puncture sheath as claimed in claim 2, is characterized in that: the side of described annular base connects gas valve.
4. peritoneoscope puncture sheath as claimed in claim 1, is characterized in that: the puncture casing of described flexible member side and outer tube part are all the cylindrical sleeves structures surrounded by four partial sidewall structures.
5. peritoneoscope puncture sheath as claimed in claim 1, is characterized in that: one end of described outer tube is provided with boss.
6. peritoneoscope puncture sheath as claimed in claim 1, is characterized in that: the base of described outer tube side wall construction is smooth edge.
7. peritoneoscope puncture sheath as claimed in claim 1, is characterized in that: the other end of described pull bar is between outer tube and annular base.
8. peritoneoscope puncture sheath as claimed in claim 1, is characterized in that: the other end of described pull bar, through annular base, is positioned at outside one end of annular base.
9. peritoneoscope puncture sheath as claimed in claim 1, is characterized in that: described flexible member is torque spring.
10. the peritoneoscope puncture sheath according to any one of claim 1 ~ 9, is characterized in that: described pull bar is telescopic lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520651057.8U CN204839681U (en) | 2015-08-26 | 2015-08-26 | Peritoneoscope puncture sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520651057.8U CN204839681U (en) | 2015-08-26 | 2015-08-26 | Peritoneoscope puncture sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204839681U true CN204839681U (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520651057.8U Active CN204839681U (en) | 2015-08-26 | 2015-08-26 | Peritoneoscope puncture sheath |
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| Country | Link |
|---|---|
| CN (1) | CN204839681U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106963457A (en) * | 2017-04-06 | 2017-07-21 | 山东省肿瘤防治研究院 | A kind of laparoscope punctures sheath |
| CN108309369A (en) * | 2018-01-24 | 2018-07-24 | 湖州市中医院 | Multifunction surgical operator under ultra micro laparoscope |
-
2015
- 2015-08-26 CN CN201520651057.8U patent/CN204839681U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106963457A (en) * | 2017-04-06 | 2017-07-21 | 山东省肿瘤防治研究院 | A kind of laparoscope punctures sheath |
| CN106963457B (en) * | 2017-04-06 | 2023-08-22 | 山东省肿瘤防治研究院 | Laparoscope puncture sheath |
| CN108309369A (en) * | 2018-01-24 | 2018-07-24 | 湖州市中医院 | Multifunction surgical operator under ultra micro laparoscope |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |