阅读说明：本技术 弹性引入件套管 (Elastic lead-through casing ) 是由 M·安德森 于 2018-04-10 设计创作，主要内容包括：公开了一种包括外层(54)、内层(52)和扩张器(14)的引入件套管系统(10)。外层在第一纵向边缘(56)与第二纵向边缘(58)之间周向延伸。在第一纵向边缘与第二纵向边缘之间限定可扩张间隙(60)。内层设置在外层内。内层构造成可连续地周向扩张。内层包括未延伸状态,其具有在外层内部周向延伸的周向部分以及延伸到内层的内部空腔中的折叠部分(64)。内层包括延伸状态,在延伸状态下,折叠部分在第一纵向边缘与第二纵向边缘之间至少部分地周向延伸。扩张器可在内层内纵向延伸。扩张器包括构造成容纳内层的折叠部分的凹部(28)。(Disclose a kind of lead-through cannula system (10) including outer layer (54), internal layer (52) and expander (14).Outer layer circumferentially extends between first longitudinal direction edge (56) and second longitudinal direction edge (58).Expansible gap (60) are limited between first longitudinal direction edge and second longitudinal direction edge.Internal layer is arranged in outer layer.Internal layer is configured to can continuously adjacent circumferential expansion.Internal layer includes non-extension state, has the folded portion (64) in the circumferential portion that outer layer internal circumferential extends and the internal cavities for extending to internal layer.Internal layer includes extension state, and in an extended condition, folded portion at least partially circumferentially extends between first longitudinal direction edge and second longitudinal direction edge.Expander can longitudinally extend in internal layer.Expander includes the recess portion (28) for being configured to accommodate the folded portion of internal layer.)

1. a kind of lead-through cannula system, the lead-through casing include:

The outer layer circumferentially extended between first longitudinal direction edge and second longitudinal direction edge, and in the first longitudinal direction edge and institute State the expansible gap limited between second longitudinal direction edge；

Internal layer, the internal layer are arranged in the outer layer, and the internal layer is constructed to be permeable to continuously adjacent circumferential expansion, the internal layer packet Non-extended state is included, the non-extended state has in the circumferential portion that the outer layer inner circumferential extends and extends in described Folded portion in the internal cavities of layer, and the internal layer includes extension state, wherein and the folded portion is described first At least partially circumferentially extend between longitudinal edge and the second longitudinal direction edge；And

Expander, the expander can longitudinally extend in the internal layer, and the expander includes being configured to accommodate in described The recess portion of the folded portion of layer.

2. lead-through cannula system as described in claim 1, which is characterized in that the expansible gap is in the unexpanded state There is the second arc length with the first arc length and under expansion state, wherein first arc length is less than second arc length.

3. lead-through cannula system as described in claim 1, which is characterized in that the outer layer includes elastic frame.

4. lead-through cannula system as claimed in claim 3, which is characterized in that the elastic frame is biased so that described One longitudinal edge and the second longitudinal direction edge are close.

5. lead-through cannula system as claimed in claim 3, which is characterized in that the elastic frame is vertical along described first The wire rod formed to edge and the second longitudinal direction edge with alternate C-shaped.

6. lead-through cannula system as described in claim 1, which is characterized in that the material thickness of the outer layer is greater than in described The material thickness of layer.

7. lead-through cannula system as described in claim 1, which is characterized in that the internal layer and the outer layer are by bio-compatible Material layer composition.

8. lead-through cannula system as described in claim 1, which is characterized in that the outer layer is symmetrical in the unexpanded state 's.

9. lead-through cannula system as described in claim 1, which is characterized in that indulge at the first longitudinal direction edge and described second It is not overlapped in the unexpanded state to edge.

10. a kind of elasticity surgery enters system, the elasticity surgery enters system and includes:

Outer tube, the outer tube include the circumferential discontinuity layer extended between first longitudinal direction edge and second longitudinal direction edge, Wherein, the first longitudinal direction edge and the second longitudinal direction edge are not overlapped；

Inner sleeve, the inner sleeve are attached in the outer layer, the internal layer be it is circumferentially continuous, the inner sleeve is included in Outer layer inner circumferential extend circumferential portion and can in the inner sleeve intracavitary extension folded portion, the folding part Divide longitudinally aligned between the first longitudinal direction edge and the second longitudinal direction edge；And

Expander, the expander are inserted into the inner cavity of the inner sleeve, and the expander includes being configured to hold Receive the recess channel of the folded portion.

11. elasticity surgery as claimed in claim 10 enters system, which is characterized in that the first longitudinal direction edge with it is described Expansible gap is limited between second longitudinal direction edge.

12. elasticity surgery as claimed in claim 10 enters system, which is characterized in that the inner sleeve is at least along described the One longitudinal edge and the second longitudinal direction edge are connected in the outer tube.

13. elasticity surgery as claimed in claim 10 enters system, which is characterized in that the circumferential portion of the inner sleeve It is adhered to the outer tube completely, and the folded portion is nonadherent.

14. elasticity surgery as claimed in claim 10 enters system, which is characterized in that the outer tube includes with duplicate The wire rod structure of longitudinal pattern.

15. a kind of lead-through cannula system, the lead-through casing include:

Outer tube, the outer tube include circumferential discontinuity layer and elastic frame, wherein the outer tube is at first longitudinal direction edge It is discontinuous between second longitudinal direction edge, wherein in the unexpanded state, the first longitudinal direction edge and described second is indulged It is adjacent to edge, and wherein, under expansion state, at the first longitudinal direction edge between the second longitudinal direction edge shape At there is gap；

Inner sleeve, the inner sleeve are arranged in the outer tube, and the inner sleeve includes circumferentially continuous diaphragm, the diaphragm Circumferential portion and folded portion including being attached to the outer tube, the folded portion are free in an unexpanded condition Extend in the inner cavity of the inner sleeve and in an extended condition with the circumferential portion circumferential alignment；And

Expander, the expander extend with being inserted into the inner sleeve, and the expander includes being configured to accommodate institute The recess channel of folded portion is stated, the expander is configured to make the outer tube and the inner sleeve from the unexpanded mode It is transitioned into the expansion state.

16. lead-through cannula system as claimed in claim 15, which is characterized in that the elastic frame makes the outer tube court It is biased to the unexpanded mode.

17. lead-through cannula system as claimed in claim 15, which is characterized in that the first longitudinal direction edge and described second Longitudinal edge is nonoverlapping.

18. lead-through cannula system as claimed in claim 15, which is characterized in that the elastic frame was formed as in the week Fully extended longitudinal repeating pattern into discontinuity layer.

19. lead-through cannula system as claimed in claim 15, which is characterized in that the recess channel is from the expander Radially towards central longitudinal axis, and the folded portion radially protrudes under the unexpanded mode for outer surface Into the recess channel.

20. lead-through cannula system as claimed in claim 15, which is characterized in that the folded portion and the first longitudinal direction Edge and second longitudinal direction edge alignment.