Plugging mechanism and medical equipment

Abstract

The utility model relates to a plugging mechanism and medical equipment. The insertion tube is provided with at least one opening; one end of the stretching-in piece is located in the insertion pipe, the other end of the stretching-in piece is located outside the insertion pipe, the stretching-in piece can rotate relative to the insertion pipe and / or move in the axial direction of the insertion pipe, and a guide groove is formed in the part, located in the insertion pipe, of the stretching-in piece; one end of the plugging piece is located in the guide groove, and the plugging piece can move along the guide groove when the stretching piece rotates and / or moves in the axial direction, so that the other end of the plugging piece can stretch out to a plugging position or retract to a retracting position through the opening; the notch of the guide groove is smaller than the inside of the groove to prevent the end of the plugging piece from separating from the guide groove. According to the utility model, the insertion tube can extend into the human body, and the plugging piece can stretch out and draw back to press and plug the branch tube or plug the through hole in the end part, so that other branch tubes or through holes except for a controlled position can work normally, and the flow resistance of air guide or drainage during flow change is reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to a blocking mechanism and medical equipment. Background Art

[0002] During tracheal intubation and drainage surgery, medical devices such as tracheal tubes or drainage tubes are used. When intubation or drainage is required at multiple locations, a main tube with several branches is set up. However, a certain branch cannot be controlled at this time, and it cannot adapt well to changes in the patient's condition. In addition, multiple through holes are usually set at the end of the tracheal tube or drainage tube to facilitate air guidance or drainage. At this time, when flow control is required, a control valve is usually set on the main tube to reduce the flow area of the main tube for flow control. However, this method will increase flow resistance and affect air guidance or drainage. The above problems need to be solved urgently. Utility Model Content

[0003] The utility model discloses a blocking mechanism and medical equipment, aiming to solve the technical problems existing in the prior art.

[0004] The utility model adopts the following technical solutions:

[0005] In a first aspect, the utility model provides a blocking mechanism, comprising: an insertion tube having at least one opening; an insertion member, one end of which is located inside the insertion tube and the other end of which is located outside the insertion tube, the insertion member being capable of rotating relative to the insertion tube and / or moving axially along the insertion tube, a guide groove being provided on the portion of the insertion member located inside the insertion tube; at least one blocking member, one end of which is located in the guide groove and capable of moving along the guide groove when the insertion member rotates and / or moves axially, so that the other end can extend through the opening to a blocking position or retract to a contracted position; the notch of the guide groove is smaller than the groove interior to prevent the end of the blocking member from escaping from the guide groove.

[0006] In the blocking mechanism of the present invention, the cross section of the guide groove is in the shape of a "convex" character; the cross section of the end portion of the blocking member is in the shape of a "convex" character that matches the guide groove.

[0007] In the sealing mechanism of the present invention, the sealing member includes a guide head, a connecting member and a sealing head; the guide head is located in the guide groove; one end of the connecting member is connected to the guide head, and the other end is connected to the sealing head, and the connecting member is gap-fitted with the opening.

[0008] In the blocking mechanism of the present invention, the side of the connecting member connected to the guide head is in contact with the surface of the extending member.

[0009] In the blocking mechanism of the present invention, the blocking member has an arc-shaped surface for blocking.

[0010] In the blocking mechanism of the present invention, the insertion member is screwed to the insertion tube; the surface of the insertion member on which the guide groove is provided is a tapered structure; and the guide groove is a spiral structure provided along the surface of the insertion member.

[0011] In the blocking mechanism of the present invention, the surface of the extending member on which the guide groove is arranged is a conical structure; and the guide groove is a conical spiral structure.

[0012] The blocking mechanism of the present invention further comprises an identification structure, which is used to indicate the moving direction of the inserting member when the blocking member is extended or retracted.

[0013] In the blocking mechanism of the present invention, the telescopic direction of the blocking member is perpendicular to the axial direction of the insertion tube.

[0014] In the blocking mechanism of the present invention, the blocking member is a bent structure, with one end portion located in the guide groove and the other end extending in a direction perpendicular to the axial direction of the insertion tube.

[0015] In a second aspect, the present invention further provides a medical device comprising any of the above-mentioned blocking mechanisms and a flexible fluid tube;

[0016] The blocking member is used to squeeze and block the flexible fluid tube.

[0017] The technical solution adopted by the utility model can achieve the following beneficial effects:

[0018] The utility model mainly provides a blocking mechanism, based on the fact that the insertion tube can be inserted into the human body so that the blocking piece reaches the position that needs to be blocked, such as the branch pipe or the through hole at the end. By operating the exposed end of the insertion piece, the blocking piece is extended and retracted to compress and block the branch pipe or block the through hole at the end, thereby controlling the branch pipe or drainage volume to keep the other branch pipes or through holes except the controlled position working normally, reducing the flow resistance of the air guide or drainage when the flow changes, and better adapting to changes in the patient's condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments, which constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 This is a structural diagram of a blocking mechanism of the utility model;

[0021] Figure 2 This is a schematic diagram of the main structure of the blocking member of the present invention;

[0022] Figure 3 This is a schematic diagram of the top view of the blocking member of the present invention;

[0023] Figure 4 For the utility model Figure 1 Schematic diagram of the left view structure;

[0024] Figure 5 For the utility model Figure 1 A partial enlarged view of point A in the middle.

[0025] Description of reference numerals:

[0026] 1. Insertion tube; 11. Opening; 2. Insertion piece; 21. Guide groove; 3. Blocking piece; 31. Guide head; 32. Connecting piece; 33. Blocking head. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. In the description of the present invention, it should be noted that the term "or" is generally used in the sense of including "and / or" unless the content clearly indicates otherwise.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a magnetic connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three or more, etc., unless otherwise clearly specified and limited.

[0029] In the field of interventional medical device technology, the direction closest to the operator is generally defined as the proximal end, and the direction away from the operator is defined as the distal end. The direction of the central axis of objects such as cylinders and tubes is defined as the axial direction. The radial direction refers to the direction passing through the central axis in a radial plane, for example, along a straight line of diameter or radius, or perpendicular to the central axis.

[0030] Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. 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.

[0031] To solve the problems existing in the prior art, the embodiments of the present application provide a blocking mechanism and a medical device.

[0032] like Figure 1 As shown, a blocking mechanism includes: an insertion tube 1, the insertion tube 1 is provided with at least one opening 11, one end of the insertion tube 1 is used to be inserted into the human body, and the other end is exposed; an insertion member 2, one end of which is located in the insertion tube 1 and the other end of which is located outside the insertion tube 1, and the insertion member 2 can rotate relative to the insertion tube 1 and / or move along the axial direction of the insertion tube 1, and a guide groove 21 is provided on the portion of the insertion member 2 located in the insertion tube 1; at least one blocking member 3, one end of the blocking member 3 is located in the guide groove 21, and can rotate and / or move along the axial direction of the insertion member 2 When moving axially, it moves along the guide groove 21 so that the other end can extend to the blocking position or retract to the contracted position through the opening 11. Specifically, the insertion member 2 moves forward to extend or retract the blocking member 3, and moves backward to retract or extend the blocking member 3. Preferably, the opening 11 and the blocking member 3 are arranged in a one-to-one correspondence, and the specific number and position of the arrangements are determined according to needs. The notch of the guide groove 21 is smaller than the groove to prevent the end of the blocking member 3 from escaping from the guide groove 21, that is, the guide groove 21 forms a limiting structure based on the small notch to restrict the blocking member 3 inside.

[0033] A blocking mechanism of the present invention is based on the fact that an insertion tube 1 can be inserted into the human body so that the blocking member 3 reaches the position that needs to be blocked, such as a branch pipe or a through hole at the end. By operating the exposed end of the insertion member 2, the blocking member 3 is extended and retracted to compress and block the branch pipe or block the through hole at the end, such as blocking the through hole, and then controlling the branch pipe or drainage flow to keep other branch pipes or through holes except the controlled position working normally, reduce the flow resistance of air guide or drainage when the flow changes, and better adapt to changes in the patient's condition.

[0034] In some preferred embodiments, the guide groove 21 is arc-shaped, such as a spiral line. At this time, the insertion member 2 rotates to make the blocking member 3 move along the guide groove 21, and along the extension direction of the guide groove 21, the radial distance between the guide groove 21 and the inner wall of the insertion tube 1 gradually changes, so that when the blocking member 3 moves along the guide groove 21, it performs telescopic movement relative to the opening 11. Alternatively, the guide groove 21 is arranged along the axial direction of the insertion member 2, such as a straight groove or an arc-shaped groove, and along the extension direction of the guide groove 21, the radial distance between the guide groove 21 and the inner wall of the insertion tube 1 gradually changes, and the insertion member 2 telescopically moves relative to the insertion tube 1, so that when the blocking member 3 moves along the guide groove 21, it performs telescopic movement relative to the opening 11.

[0035] In some preferred embodiments, Figure 2 and Figure 5 As shown, the cross section of the guide groove 21 is in the shape of a “convex”; the cross section of the end portion of the blocking member 3 is in the shape of a “convex” that matches the guide groove 21 .

[0036] In some preferred embodiments, Figure 2 and Figure 3 As shown, the blocking member 3 includes a guide head 31, a connecting member 32 and a blocking head 33; the guide head 31 is located in the guide groove 21; one end of the connecting member 32 is connected to the guide head 31, and the other end is connected to the blocking head 33, and the connecting member 32 is clearance-matched with the opening 11; based on the clearance-matched between the connecting member 32 and the opening 11, the moving direction of the connecting member 32 is restricted, so that the telescopic direction of the connecting member 32 is along the direction of the opening 11, which is conducive to controlling the telescopic amount, and helps to keep the position of the blocking member 3 stable, and avoid shaking of the blocking member 3 affecting the sealing effect.

[0037] In some preferred embodiments, Figure 1 As shown, the connecting member 32 is connected to one side of the guide head 31 and is fitted to the surface of the inserting member 2, that is, the end face of the connecting member 32 on the side connected to the guide head 31 is fitted to the surface of the inserting member 2, specifically the surface of the inserting member 2 at the edge of the notch of the guide groove 21; based on the end face of the connecting member 32 being fitted to the surface of the inserting member 2, the stability of the blocking member 3 when moving along the guide groove 21 is further improved, thereby avoiding the shaking of the blocking member 3 affecting the control of the extension and contraction amount of the blocking member 3.

[0038] In some preferred embodiments, Figure 3 As shown, the sealing member 3 has an arcuate surface for sealing; specifically, the shape of the arcuate surface is determined according to the shape of the branch pipe or drainage tube to be sealed. When the branch pipe or drainage tube needs to be squeezed to control the flow, the arcuate surface should be able to completely press the branch pipe or drainage tube after extrusion and deformation to achieve complete flow cutoff, or, when the through hole at the end needs to be sealed, the surface of the sealing member 3 used for sealing is set to be consistent with the shape of the pipe section where the through hole is located; when the sealing member 3 includes a sealing head 33, the surface of the sealing head 33 used for sealing is an arcuate surface; the sealing head 33 can also be set to be larger than the opening 11 to maintain the restriction of the opening 11 on the guiding and telescopic direction of the connecting member 32.

[0039] In some preferred embodiments, Figure 1 As shown, the insertion member 2 is screwed to the insertion tube 1; the surface of the insertion member 2 on which the guide groove 21 is provided is a tapered structure, such as a sphere, an ellipsoid or a cone; the guide groove 21 is a spiral structure provided along the surface of the insertion member 2; the connection based on the screw connection is conducive to maintaining a stable position and not easily causing axial movement, and is conducive to gradually adjusting the expansion and contraction amount of the blocking member 3.

[0040] In some preferred embodiments, Figure 1 and Figure 4 As shown, the surface of the guide groove 21 of the insertion member 2 is a conical structure; the guide groove 21 is a conical spiral structure; the guide groove 21 is a conical spiral structure, specifically a conical spiral structure, then when the insertion member 2 rotates, it rotates at the same angle, and the expansion and contraction amount of the sealing member 3 is consistent, which is more conducive to controlling the expansion and contraction amount.

[0041] In some preferred embodiments, an identification structure (not shown) is further included, which is used to indicate the moving direction of the insertion member 2 when the blocking member 3 is extended or retracted; specifically, the identification structure can be an arrow, and when the insertion member 2 is rotated in the corresponding direction according to the direction indicated by the arrow, the movement of the blocking member 3 is extension or retraction.

[0042] In some preferred embodiments, Figure 1 As shown, the telescopic direction of the blocking member 3 is perpendicular to the axial direction of the insertion tube 1; that is, the extending direction of the blocking member 3 is perpendicular to the axial direction of the insertion tube 1, such as the extending direction of the connecting member 32; based on this, the blocking member 3 can be quickly telescoped.

[0043] In some preferred embodiments, the sealing member 3 is a bent structure, with an end on one side located in the guide groove 21 and the other side extending in an axial direction perpendicular to the insertion tube 1. Preferably, the side connected to the guide groove 21 is perpendicular to the extension direction of the guide groove 21. For example, when the surface of the guide groove 21 is set as an arc surface, the guide groove 21 also extends along the arc surface. At this time, the side connected to the guide groove 21 is perpendicular to the extension direction of the guide groove 21; specifically, when the sealing member 3 includes a guide head 31, a connecting member 32 and a blocking head 33, the connecting member 32 is a bent structure, such as a bent rod, connected to the guide head 31, and the other side extends in an axial direction perpendicular to the insertion tube 1, and the end is connected to the blocking head 33.

[0044] In some preferred embodiments, the insertion tube 1 and the projection 2 are clearance-fitted.

[0045] A medical device comprises the above-mentioned blocking mechanism and a flexible fluid tube; the blocking member 3 is used for squeezing and blocking the flexible fluid tube.

[0046] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A blocking mechanism, characterized in that: include; an insertion tube, wherein at least one opening is formed on the insertion tube; an inserting member, one end of which is located inside the insertion tube and the other end of which is located outside the insertion tube, the inserting member being capable of rotating relative to the insertion tube and / or moving along the axial direction of the insertion tube, and a guide groove being provided on a portion of the inserting member located inside the insertion tube; at least one blocking member, one end of which is located in the guide groove and is capable of moving along the guide groove when the insertion member rotates and / or moves axially, so that the other end can extend through the opening to a blocking position or retract to a retracted position; The notch opening of the guide groove is smaller than the inner portion of the groove, so as to prevent the end portion of the blocking member from falling out of the guide groove.

2. The blocking mechanism according to claim 1, characterized in that: The cross section of the guide groove is in the shape of a "convex" character; the cross section of the end portion of the blocking member is in the shape of a "convex" character adapted to the guide groove.

3. The blocking mechanism according to claim 1, characterized in that: The blocking piece includes a guide head, a connecting piece and a blocking head; The guide head is located in the guide groove; One end of the connecting piece is connected to the guide head, and the other end is connected to the blocking head, and the connecting piece is loosely matched with the opening.

4. The blocking mechanism according to claim 3, characterized in that: The side of the connecting piece connected to the guide head is attached to the surface of the inserting piece.

5. The blocking mechanism according to claim 1, characterized in that: The blocking piece has a curved surface for blocking.

6. The blocking mechanism according to any one of claims 1 to 5, characterized in that: The insertion piece is screwed to the insertion tube; the surface of the insertion piece where the guide groove is arranged is a tapered structure; the guide groove is a spiral structure arranged along the surface of the insertion piece.

7. The blocking mechanism according to any one of claims 1 to 5, characterized in that: The surface of the extending member setting the guide groove is a conical structure; the guide groove is a conical spiral structure.

8. The blocking mechanism according to any one of claims 1 to 5, characterized in that: The expansion and contraction direction of the blocking member is perpendicular to the axial direction of the insertion tube.

9. The blocking mechanism according to claim 8, characterized in that: The blocking member is a bent structure, with an end portion on one side located in the guide groove and the other side extending in a direction perpendicular to the axial direction of the insertion tube.

10. A medical device, characterized in that: comprising the blocking mechanism and the flexible fluid tube according to any one of claims 1 to 9; The blocking member is used to squeeze and block the flexible fluid tube.

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