CN219126593U - Subcutaneous tunnel construction device for ventricular and abdominal cavity shunt operation - Google Patents

Abstract

The utility model discloses a subcutaneous tunnel construction device for ventriculo-abdominal shunt, which comprises a pass-through strip and a dilator, wherein the pass-through strip is provided with a first end close to an abdominal incision and a second end close to a head incision, the pass-through strip comprises an inner core and an outer tube, the outer tube is sleeved outside the inner core, and the outer tube and the inner core can be separated; the dilator is detachably connected with the second end of the pass-through strip, and the diameter of the dilator is larger than that of the pass-through strip. The percutaneous tunnel is constructed by using a through strip to enter from an abdomen incision and be led out from the head incision through subcutaneous puncture of the chest and the neck subcutaneous puncture. The expander is connected to the second end that the opening strip is close to the head incision, and the operator pulls the opening strip to the belly direction and can accomplish the expansion of head subcutaneous tunnel, easy operation has guaranteed the uniformity of subcutaneous tunnel, the installation of the later stage pressure limiting valve of being convenient for.

Description

Subcutaneous tunnel construction device for ventricular and abdominal cavity shunt operation

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a subcutaneous tunnel construction device for ventricular and abdominal cavity shunt operation.

Background

Ventricular and peritoneal shunt is a common hydrocephalus treatment procedure by which shunt tubes are implanted subcutaneously in the ventricle and in the abdominal cavity. The ventricular and abdominal shunt operation needs to implant the drainage tube into the subcutaneous tunnel by using a drift tube firstly, wherein the drift tube comprises a hard sleeve and a guide core used for connecting the drainage tube in the hard sleeve, the drainage tube is connected with the guide core after the subcutaneous tunnel is constructed by the hard sleeve, and the drainage tube is placed into the subcutaneous tunnel for subsequent shunt operation in the process of pulling out the guide core from the hard sleeve.

In the prior art, various through strips only can form a subcutaneous tunnel from the head to the abdomen, but after the subcutaneous tunnel is constructed, the local subcutaneous tunnel needs to be expanded at a position close to the head incision to accommodate the pressure limiting valve of the shunt tube. In clinic, hemostats are mostly adopted to expand the subcutaneous tunnel of the head, which is easy to cause the problems of excessive bleeding, blood entering the shunt tube and the like. The prior art provides an expander, improves on traditional hemostat's basis, including expansion portion, connecting portion and the portion of gripping that links to each other in proper order, realizes the expansion of opening the strip after entangling the opening strip through expansion portion, but its operation still has the shortcoming such as subcutaneous tunnel uniformity low, still has soft tissue separation to cause the reposition of redundant personnel to hang down in the tunnel.

Disclosure of Invention

In order to solve at least one of the technical problems, the utility model provides a subcutaneous tunnel construction device for ventricular and abdominal bypass surgery, which adopts the following technical scheme.

The utility model provides a subcutaneous tunnel construction device for ventriculo-abdominal shunt operation, which comprises a pass-through strip and an expander, wherein the pass-through strip is provided with a first end close to an abdominal incision and a second end close to a head incision, the pass-through strip comprises an inner core and an outer tube, the outer tube is sleeved outside the inner core, and the outer tube and the inner core can be separated; the dilator is detachably connected with the second end of the pass-through strip, and the diameter of the dilator is larger than that of the pass-through strip.

In certain embodiments of the utility model, a transition structure is provided between the dilator and the passbar.

In certain embodiments of the utility model, the transition structure comprises a frustoconical surface having a first end adjacent the pass-bar and a second end adjacent the dilator, the second end having a diameter greater than the diameter of the first end.

In certain embodiments of the utility model, the outer wall of the outer tube is provided with graduations to facilitate viewing of the depth of insertion.

In certain embodiments of the utility model, the dilator is threadably coupled to the second end of the outer tube.

In some embodiments of the utility model, the expander is provided with external threads at the end connected to the outer tube and internal threads at the second end of the outer tube.

In certain embodiments of the present utility model, the subcutaneous tunnel construction device includes a gripping structure coupled to the first end of the passbar.

In certain embodiments of the present utility model, the pass-bar includes a piercing structure configured as a blunted streamline.

In some embodiments of the present utility model, the piercing structure is integrally connected to the second end of the inner core, and the piercing structure is disposed to extend beyond the second end of the outer tube.

In certain embodiments of the utility model, the subcutaneous tunnel construction device comprises a drainage tube removably connected to the second end of the inner core.

The embodiment of the utility model has at least the following beneficial effects: the percutaneous tunnel is constructed by using a through strip to enter from an abdomen incision and be led out from the head incision through subcutaneous puncture of the chest and the neck subcutaneous puncture. The expander is connected to the second end that the opening strip is close to the head incision, and the operator pulls the opening strip to the belly direction and can accomplish the expansion of head subcutaneous tunnel, easy operation has guaranteed the uniformity of subcutaneous tunnel, the installation of the later stage pressure limiting valve of being convenient for.

Drawings

The foregoing and/or additional aspects and advantages of the present utility model will be apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings.

FIG. 1 is a schematic diagram of a subcutaneous tunnel construction device for ventricular and abdominal bypass;

fig. 2 is a schematic structural view of an inner core of the subcutaneous tunnel construction device provided in fig. 1.

Reference numerals: 100. a pass strip; 110. an outer tube; 120. an inner core; 121. a piercing structure; 1211. a connection hole; 122. a grip structure; 200. a dilator; 210. a transition structure.

Detailed Description

Embodiments of the present utility model are described in detail below with reference to fig. 1-2, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that, if the terms "center", "middle", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are used as directions or positional relationships based on the directions shown in the drawings, the directions are merely for convenience of description and for simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Features defining "first", "second" are used to distinguish feature names from special meanings, and furthermore, features defining "first", "second" may explicitly or implicitly include one or more such features. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Ventricular and peritoneal shunt is a common hydrocephalus treatment procedure by which shunt tubes are implanted subcutaneously in the ventricle and in the abdominal cavity. The ventricular and abdominal shunt operation needs to implant the drainage tube into the subcutaneous tunnel by using a drift tube firstly, wherein the drift tube comprises a hard sleeve and a guide core used for connecting the drainage tube in the hard sleeve, the drainage tube is connected with the guide core after the subcutaneous tunnel is constructed by the hard sleeve, and the drainage tube is placed into the subcutaneous tunnel for subsequent shunt operation in the process of pulling out the guide core from the hard sleeve.

In the prior art, various through strips only can form a subcutaneous tunnel from the head to the abdomen, but after the subcutaneous tunnel is constructed, the local subcutaneous tunnel needs to be expanded at a position close to the head incision to accommodate the pressure limiting valve of the shunt tube. In clinic, hemostats are mostly adopted to expand the subcutaneous tunnel of the head, which is easy to cause the problems of excessive bleeding, blood entering the shunt tube and the like. In addition, the operation of expanding the subcutaneous tunnel at the head by using hemostats and the like still has the defects of low consistency of the subcutaneous tunnel, unsmooth shunt caused by separation of soft tissues in the tunnel and the like.

The utility model relates to a subcutaneous tunnel construction device for ventriculo-abdominal shunt, which comprises a pass-through strip 100 and a dilator 200, wherein the pass-through strip 100 is provided with a first end close to an abdominal incision and a second end close to a head incision, the pass-through strip 100 comprises an inner core 120 and an outer tube 110, the outer tube 110 is sleeved outside the inner core 120, and the outer tube 110 and the inner core 120 can be separated; the dilator 200 is detachably coupled to the second end of the pass-bar 100, and the diameter of the dilator 200 is larger than the diameter of the pass-bar 100. The tunnel is constructed using a vent strip 100 from an abdominal incision, through subcutaneous penetration of the chest, subcutaneous penetration of the neck, and extraction of the head incision. The expander 200 is connected to the second end that the opening strip 100 is close to the head incision, and the operator pulls the opening strip 100 to the belly direction and can accomplish the expansion of head subcutaneous tunnel, easy operation has guaranteed the uniformity of subcutaneous tunnel, is convenient for the installation of later stage pressure limiting valve.

Further, in connection with the figures, a transition structure 210 is provided between the dilator 200 and the pass-bar 100. It will be appreciated that the provision of the transition structure 210 between the dilator 200 and the pass-through strip 100 provides a smooth transition for the dilator 200 to successfully complete the subcutaneous tunnel dilation operation when the pass-through strip 100 is pulled. Specifically, in this embodiment, the transition structure 210 includes a circular truncated cone having a first end adjacent the pass-through strip 100 and a second end adjacent the dilator 200, the second end having a diameter greater than the diameter of the first end. It will be appreciated that the first end of the boss is the same diameter as the second end of the pass-bar 100 and the second end of the boss is the same diameter as the dilator 200. It will be appreciated that in other embodiments, the transition structure 210 may be configured as a tube body or other form that is sequentially arranged in a stepped manner according to the diameter, so as to achieve the purpose of smoothly transitioning the dilator 200 and the pass-through strip 100, so that the pass-through strip 100 drives the dilator 200 to perform the subcutaneous tunnel expansion operation.

In some embodiments, the dilator 200 is threadably coupled to the second end of the passbar 100. Specifically, the first end of the boss is threadedly coupled to the second end of the outer tube 110. The expander 200 is connected with the outer tube 110 by adopting threads so as to facilitate the disassembly of the expander 200, and the threaded connection has the characteristics of high reliability and difficult failure. After the subcutaneous tunnel is constructed, the expander 200 is rotated to enable the round table to be in threaded connection with the outer tube 110, and then the through strip 100 is pulled towards the direction close to the abdominal incision, so that the expansion of the head subcutaneous tunnel is completed, the consistency of the subcutaneous tunnel is ensured, and the blockage caused by blood and soft tissues entering into the shunt tube is avoided.

It will be appreciated that the end of the expander 200 that is connected to the outer tube 110 is provided with external threads and the second end of the outer tube 110 is provided with internal threads. To ensure the safety during the construction of the subcutaneous tunnel, the internal organs or blood vessels are prevented from being injured by the outer tube 110 during the puncturing process, the screw structure of the connecting end of the outer tube 110 and the expander 200 is set to be an internal screw thread, and correspondingly, the first end of the round table is set to be an external screw thread.

Further, the subcutaneous tunnel-building device includes a gripping structure 122, the gripping structure 122 being connected to the first end of the passbar 100. It will be appreciated that the provision of the gripping structure 122 at the end of the pass-through strip 100 that remains outside the body facilitates the piercing operation and facilitates rapid construction of the subcutaneous tunnel. The gripping structure 122 may be integrally connected with the first end of the pass-bar 100 or may be detachably connected with the first end of the pass-bar 100, in consideration of various usage scenarios.

Further, the pass-through strip 100 includes a piercing structure 121, it being understood that the piercing structure 121 is provided to facilitate the piercing operation of the pass-through strip 100 for insertion from an abdominal incision to a head incision. Specifically, the piercing structure 121 is configured as a bluff line, and in some embodiments, the piercing structure 121 is configured in a bullet-like shape. It will be appreciated that the piercing structure 121 is bluntly streamlined to avoid injury to the viscera or blood vessels during piercing.

Further, a piercing structure 121 is connected to the second end of the inner core 120, and the piercing structure 121 extends out of the second end of the outer tube 110. In this embodiment, the piercing structure 121 is integrally connected to the second end of the core 120. It will be appreciated that the piercing structure 121 is made of a rigid material to facilitate the piercing operation, such as medical grade stainless steel.

Further, the subcutaneous tunnel construction device includes a drainage tube detachably connected to the second end of the inner core 120. Specifically, with reference to the drawings, the puncture structure 121 is provided with a connection hole 1211 for connecting a drainage tube, the drainage tube is threaded through the connection hole 1211 to achieve connection with the inner core 120, after the subcutaneous tunnel is expanded, an operator holds the holding structure 122 to withdraw the inner core 120, and the inner core 120 drives the drainage tube to pass through the outer tube 110, so that the tube placing operation of the drainage tube is completed. In other embodiments, the puncture structure 121 and the drainage tube can be detachably connected by a threaded connection or the like.

In this embodiment, the diameter of the dilator 200 is set to 20mm to meet the pressure limiting valve placement of the subsequent shunt.

In some embodiments, the inner core 120 is made of a hard material, so as to avoid accidents such as tube folding during the puncturing process. In this embodiment, the inner core 120 is made of medical stainless steel.

Further, the outer wall of the outer tube 110 is provided with graduations to facilitate real-time observation by the operator, grasp the insertion depth and adjust in time, and assist in the construction of the subcutaneous tunnel.

Other constructions and operation of the subcutaneous tunnel-constructing device for ventricular and abdominal bypass surgery are well known to those of ordinary skill in the art and will not be described in detail herein.

In the following, the utility model is described in detail with reference to a specific embodiment, it being noted that the following description is merely illustrative and not a specific limitation of the utility model.

Ensuring that the piercing structure 121 extends beyond the second end of the outer tube 110, the second end of the pass-through strip 100 is inserted from the abdominal incision, subcutaneously through the chest, subcutaneously through the neck, and to the head incision. The penetration direction of the pass through strip 100 is controlled by the holding structure 122 during the penetration process, the penetration structure 121 is ensured to extend out of the outer tube 110, and the scale of the outer wall of the outer tube 110 can be observed during the penetration process to acquire the insertion depth in real time. After the subcutaneous tunnel is constructed, the inner core 120 is gently pulled back through the gripping structure 122 to expose the internal threads at the second end of the outer tube 110. The expander 200 is rotated to threadably connect the expander 200 with the outer tube 110. After the connection is successful, the outer tube 110 is pulled towards the direction close to the abdominal incision, so that the expansion of the head subcutaneous tunnel is completed, the consistency of the subcutaneous tunnel is ensured, and the blockage and pollution caused by blood, soft tissues and the like entering the subcutaneous tunnel are avoided. After expansion is completed, the expander 200 is removed by rotating, and the grip structure 122 is pushed to extend the core 120 out of the head incision. Connecting the inner core 120 with the drainage tube, pulling the inner core 120 to drive the drainage tube to pass through the head incision, the neck subcutaneous, the chest subcutaneous and the abdomen incision, and completing the tube placing operation of the drainage tube.

In the description of the present specification, if a description appears that makes reference to the term "one embodiment," "some examples," "some embodiments," "an exemplary embodiment," "an example," "a particular example," or "some examples," etc., it is intended that the particular feature, structure, material, or characteristic described in connection with the embodiment or example be included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

In the description of the present utility model, the terms "and" if used in the singular are intended to mean "and" as opposed to "or". For example, the patent name "a A, B" describes that what is claimed in the present utility model is: a technical scheme with a subject name A and a technical scheme with a subject name B.

Claims (10)

1. A subcutaneous tunnel construction device for ventricular and abdominal bypass surgery, comprising:

the device comprises a through strip (100), wherein the through strip (100) is provided with a first end close to an abdomen incision and a second end close to a head incision, the through strip (100) comprises an inner core (120) and an outer tube (110), the outer tube (110) is sleeved outside the inner core (120), and the outer tube (110) is separable from the inner core (120);

-a dilator (200), the dilator (200) being detachably connected to the second end of the pass-bar (100), the dilator (200) having a diameter larger than the diameter of the pass-bar (100).

2. The subcutaneous tunnel construction device for ventricular peritoneal shunt according to claim 1, wherein: a transition structure (210) is provided between the dilator (200) and the pass-through strip (100).

3. The subcutaneous tunnel construction device for ventricular peritoneal shunt according to claim 2, wherein: the transition structure (210) comprises a circular truncated cone provided with a first end adjacent to the pass-through strip (100) and a second end adjacent to the expander (200), the second end having a diameter greater than the diameter of the first end.

4. The subcutaneous tunnel construction device for ventricular peritoneal shunt according to claim 1, wherein: the outer wall of the outer tube (110) is provided with graduations to facilitate observation of the depth of insertion.

5. The subcutaneous tunnel construction device for ventricular peritoneal shunt according to claim 1, wherein: the expander (200) is threadably coupled to the second end of the outer tube (110).

6. The subcutaneous tunnel construction device for ventricular peritoneal shunt as claimed in claim 5, wherein: the expander (200) is provided with external threads at one end connected with the outer tube (110), and internal threads at the second end of the outer tube (110).

7. The subcutaneous tunnel construction device for ventricular peritoneal shunt according to claim 1, wherein: the subcutaneous tunnel construction device comprises a gripping structure (122), the gripping structure (122) being connected to a first end of the passbar (100).

8. The subcutaneous tunnel construction device for ventricular peritoneal shunt according to claim 1, wherein: the pass-bar (100) comprises a piercing structure (121), the piercing structure (121) being arranged as a blunted streamline.

9. The subcutaneous tunnel construction device for ventricular peritoneal shunt according to claim 8, wherein: the puncture structure (121) is integrally connected with the second end of the inner core (120), and the puncture structure (121) extends out of the second end of the outer tube (110).

10. The subcutaneous tunnel construction device for ventricular peritoneal shunt according to claim 1, wherein: the subcutaneous tunnel construction device includes a drainage tube detachably connected with the second end of the inner core (120).

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