A multi-lumen puncture sheath

Abstract

The present invention relates to a multi-lumen puncture sheath, comprising a sheath body and a dilator installed in the sheath body, wherein a tail plug is provided at one end of the sheath body, and a plurality of tail plug branches are provided at one end of the tail plug, wherein the tail plug branches are each provided with a tail plug branch cavity for inserting a puncture instrument, and the tail plug branch cavity is connected to the inner cavity of the dilator. When the multi-lumen puncture sheath of the present invention is in use, surgical instruments pass through the tail plug, and since there are a plurality of tail plug branches, different instruments can enter the body at the same time without interfering with or colliding with each other, thereby avoiding entanglement or tearing of the puncture tube at the fixed incision during the surgical operation, thereby ensuring the safety of the operation. In addition, different instruments can enter at the same time without interfering with or colliding with each other, thereby improving the convenience of the surgical operation and reducing the difficulty of the surgical operation.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to a multi-lumen puncture sheath. Background Art

[0002] Since intracavitary repair surgery causes less damage to the human body and has fewer complications, it has been widely used and promoted in the field of cardiovascular diseases. As an auxiliary device for this type of surgery, the puncture sheath cooperates with the guide catheter or guidewire to establish a channel so that the guidewire can reach the exact position and release the stent. Finally, the stent system is moved along the guidewire to the lesion site or target site and released, thereby achieving the purpose of repairing the diseased blood vessel. In this process, the puncture sheath can be used to fix on the patient's incision. The outer wall of the sheath fits tightly with the incision to achieve sealing, and at the same time provides a channel for the instrument to enter the human body. During the puncture process, multiple instruments are usually required to enter the body at the same time, and interference and collision between instruments are likely to occur, making it easy for the surgical operation to involve or tear the puncture cannula fixed at the incision, thereby causing blood loss to the patient. Summary of the invention

[0003] The object of the present invention is to provide a multi-lumen puncture sheath to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A multi-lumen puncture sheath comprises a sheath body and a dilator installed in the sheath body, one end of the sheath body is provided with a tail plug, the tail plug comprises a tail plug body, one end of the tail plug body is provided with a plurality of tail plug branches, each of the tail plug branches is provided with a tail plug branch cavity for inserting a puncture instrument, and the tail plug branch cavity is connected to the inner cavity of the dilator.

[0006] As a further solution of the present invention: the sheath tube body includes a sheath tube, a hose, a right shell and a left shell, the right shell and the left shell are enclosed inside to form an installation cavity, the hose is arranged in the installation cavity, one end of the hose is provided with a sheath tube joint, the sheath tube is fixed on the sheath tube joint, the other end of the hose is provided with a hose joint, the dilator passes through the sheath tube, the sheath tube joint, the hose and the hose joint, the right shell and the left shell are provided with guide grooves inclined relative to the hose, the guide grooves are symmetrically arranged relative to the hose, rollers that can slide along the guide grooves are installed between the guide grooves, when the roller slides close to the hose, the roller squeezes the hose, and the hose is in a closed state, when the roller slides away from the hose, the hose is in an open state.

[0007] As a further solution of the present invention: a shell collar is sleeved between the right shell and the left shell.

[0008] As a further solution of the present invention: the inner bottoms of the right outer shell and the left outer shell are both provided with support surfaces, and the hose is arranged on the upper end surface of the support surface.

[0009] As a further solution of the present invention: a stress relief tube is sleeved on the outer periphery of the sheath tube joint and the sheath tube connection point.

[0010] As a further solution of the present invention: the inner walls of the right outer shell and the left outer shell are provided with a limiting inner ring formed by enclosing, the inner diameter of the limiting inner ring is d1, the outer diameter of the hose connector is d2, and d1<d2.

[0011] As a further solution of the present invention: the size of the expander is 18F, 20F or 22F.

[0012] As a further solution of the present invention: the number of the tail plug branch pipes is two, three or four.

[0013] As a further solution of the present invention: a sealing sleeve wrapped around the outer circumference of the hose connector is provided on one side of the tail plug body close to the hose connector.

[0014] As a further solution of the present invention: a plug which is inserted into the hose connector is provided on one side of the tail plug body close to the hose connector, and the plug is provided with a plurality of jacks which are connected to the tail plug branch cavities in a one-to-one correspondence.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The surgical instruments used for puncture pass through the tail plug. Since there are multiple tail plug branches, different instruments can enter the body at the same time without interference or collision with each other, avoiding the puncture tube at the fixed incision from being pulled or torn during the operation, thereby ensuring the safety of the operation. In addition, different instruments enter at the same time without interference or collision with each other, which also improves the convenience of the operation and reduces the difficulty of the operation.

[0017] 2. The roller slides along the guide groove. When the roller slides close to the hose, the roller squeezes the hose, and the hose is in a closed state. When the roller slides away from the hose, the hose is in an open state. This facilitates the opening and closing of the hose, reduces the amount of bleeding during use and replacement of instruments, and ensures the air tightness of the puncture site.

[0018] 3. The setting of the support table ensures that when the hose is squeezed by the roller, the force on the side of the hose away from the roller is more even, and the effect of the hose on and off is better.

[0019] Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the multi-lumen puncture sheath of the present invention;

[0021] Figure 2 It is a side view of the multi-lumen puncture sheath of the present invention;

[0022] Figure 3 for Figure 2 Sectional view of the AA plane;

[0023] Figure 4 for Figure 3 A local enlarged schematic diagram of the middle A;

[0024] Figure 5 It is a schematic diagram of the explosion of the sheath tube body in the multi-lumen puncture sheath of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the tail plug in the multi-lumen puncture sheath of the present invention;

[0026] Figure 7 It is a side view of the sheath tube body in the multi-lumen puncture sheath of the present invention.

[0027] In the figure: 1. sheath body; 101. right shell; 102. left shell; 103. hose; 104. hose connector; 105. roller; 106. stress release tube; 107. shell collar; 108. sheath connector; 109. guide groove; 110. support table; 111. limiting protrusion; 112. limiting inner ring; 113. sheath; 2. dilator; 3. tail plug; 301. sealing sleeve; 302. tail plug body; 303. tail plug branch tube; 304. tail plug branch cavity; 305. socket; 306. reinforcing rib. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figures 1 to 7 In an embodiment of the present invention, a multi-lumen puncture sheath includes a sheath body 1 and a dilator 2 installed in the sheath body 1. One end of the sheath body 1 is provided with a tail plug 3, and the tail plug 3 includes a tail plug body 302. One end of the tail plug body 302 is provided with a plurality of tail plug branches 303. The tail plug branch tubes 303 are each provided with a tail plug branch cavity 304 for inserting a puncture instrument, and the tail plug branch cavity 304 is connected to the inner cavity of the dilator 2.

[0030] During a specific operation, the surgical instruments used for puncture pass through the tail plug 3. Since there are multiple tail plug branch tubes 303, different instruments can enter the body at the same time without interfering with or colliding with each other, thus avoiding the puncture tube at the fixed incision from being pulled or torn during the operation, thereby ensuring the safety of the operation. In addition, different instruments can enter at the same time without interfering with or colliding with each other, which also improves the convenience of the operation and reduces the difficulty of the operation.

[0031] In this embodiment, the sheath body 1 includes a sheath 113, a hose 103, a right shell 101 and a left shell 102, the right shell 101 and the left shell 102 are enclosed in the interior to form an installation cavity, the hose 103 is arranged in the installation cavity, one end of the hose 103 is provided with a sheath connector 108, the sheath 113 is fixed on the sheath connector 108, the other end of the hose 103 is provided with a hose connector 104, the dilator 2 passes through the sheath 113, the sheath connector 108, the hose 103 and the hose connector 104 4, the right shell 101 and the left shell 102 are both provided with guide grooves 109 which are inclined relative to the hose 103, and the guide grooves 109 are symmetrically arranged relative to the hose 103. A roller 105 which can slide along the guide grooves 109 is installed between the guide grooves 109. When the roller 105 slides in the direction close to the hose 103, the roller 105 squeezes the hose 103, and the hose 103 is in a closed state at this time. When the roller 105 slides in the direction away from the hose 103, the hose 103 is in an open state. The roller 105 slides along the guide groove 109. When the roller 105 slides in the direction close to the hose 103, the roller 105 squeezes the hose 103, and the hose 103 is in a closed state at this time. When the roller 105 slides in the direction away from the hose 103, the hose 103 is in an open state. This facilitates the opening and closing of the hose, reduces the amount of bleeding when using and replacing the instrument, and ensures the air tightness of the puncture site.

[0032] In this embodiment, a housing collar 107 is sleeved between the right housing 101 and the left housing 102. The provision of the housing collar 107 facilitates the disassembly and installation of the right housing 101 and the left housing 102, and facilitates the disassembly and cleaning of the right housing 101 and the left housing 102.

[0033] In order to make the force on the side of the hose 103 away from the roller 105 more uniform when the hose 103 is squeezed by the roller 105 and to achieve a better on-off effect of the hose 103, the inner bottom of the right shell 101 and the left shell 102 are both provided with a support table 110, and the hose 103 is arranged on the upper end surface of the support table 110.

[0034] In order to release the stress of the sheath tube 113 in time, a stress release tube 106 is sleeved on the outer periphery of the connection between the sheath tube connector 108 and the sheath tube 113 .

[0035] In order to improve the stability of the hose 103 installed in the right shell 101 and the left shell 102, the inner walls of the right shell 101 and the left shell 102 are provided with a limiting inner ring 112, the inner diameter of the limiting inner ring 112 is d1, the outer diameter of the hose connector 104 is d2, d1<d2.

[0036] In this embodiment, the size of the dilator 2 is 18F, 20F or 22F. In actual use, the size of the dilator 2 can be changed according to the actual use scenario, which improves the flexibility of the use of the puncture sheath.

[0037] In this embodiment, the number of the tail plug branch pipes 303 is two, three or four. In actual use, the number of the tail plug branch pipes 303 can be adjusted according to the actual use scenario to meet the needs of use.

[0038] In order to improve the sealing performance of the connection between the hose connector 104 and the tail plug 3 , a sealing sleeve 301 wrapped around the outer circumference of the hose connector 104 is provided on one side of the tail plug body 302 close to the hose connector 104 .

[0039] In order to facilitate the insertion and removal of the puncture instrument, a plug 304 inserted into the hose connector 104 is provided on the side of the tail plug body 302 close to the hose connector 104. The plug 304 is provided with a plurality of jacks 305, which are connected to the tail plug branch cavity 304 in a one-to-one correspondence.

[0040] It can be understood that a plurality of reinforcing ribs 306 are also provided on the outer periphery of the tail plug body 302. The provision of the reinforcing ribs 306 can effectively improve the strength of the tail plug body 302 and ensure the stability of the puncture sheath during operation.

[0041] It can be understood that the sealing sleeve 301 is further provided with a limiting slot 303 , and the left housing 102 is provided with a limiting protrusion 111 inserted into the limiting slot 303 , which facilitates the removal and installation of the tail plug 3 .

[0042] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and range of equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multi-lumen puncture sheath, comprising a sheath body and a dilator installed in the sheath body, characterized in that: A tail plug is provided at one end of the sheath body, and the tail plug includes a tail plug body, and a plurality of tail plug branches are provided at one end of the tail plug body, each of the tail plug branches is provided with a tail plug branch cavity for inserting a puncture instrument, and the tail plug branch cavity is connected to the inner cavity of the dilator; The sheath tube body comprises a sheath tube, a hose, a right shell and a left shell, wherein the right shell and the left shell are enclosed to form an installation cavity therein, the hose is arranged in the installation cavity, a sheath tube joint is arranged at one end of the hose, the sheath tube is fixed on the sheath tube joint, a hose joint is arranged at the other end of the hose, the dilator passes through the sheath tube, the sheath tube joint, the hose and the hose joint, the right shell and the left shell are both provided with guide grooves which are inclined relative to the hose, the guide grooves are symmetrically arranged relative to the hose, rollers which can slide along the guide grooves are installed between the guide grooves, when the rollers slide close to the hose direction, the rollers squeeze the hose, at which time the hose is in a closed state, when the rollers slide away from the hose direction, the hose is in an open state; A shell collar is sleeved between the right shell and the left shell; the inner bottoms of the right shell and the left shell are both provided with a support table, and the hose is arranged on the upper end surface of the support table.

2. A multi-lumen puncture sheath according to claim 1, characterized in that: The outer periphery of the sheath tube joint and the sheath tube connection point is sleeved with a stress release tube.

3. A multi-lumen puncture sheath according to claim 2, characterized in that: The inner walls of the right outer shell and the left outer shell are provided with a limiting inner ring formed by enclosing, the inner diameter of the limiting inner ring is d1, the outer diameter of the hose connector is d2, and d1<d2.

4. A multi-lumen puncture sheath according to claim 1, characterized in that: The size of the dilator is 18F, 20F or 22F.

5. A multi-lumen puncture sheath according to claim 1, characterized in that: The number of the tail plug branch pipes is two, three or four.

6. A multi-lumen puncture sheath according to claim 1, characterized in that: A sealing sleeve wrapped around the outer periphery of the hose connector is provided on one side of the tail plug body close to the hose connector.

7. A multi-lumen puncture sheath according to claim 1, characterized in that: A plug which is plugged into the hose connector is arranged on one side of the tail plug body close to the hose connector. The plug is provided with a plurality of jacks which are connected and arranged in a one-to-one correspondence with the tail plug branch cavities.

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