CN217772471U

CN217772471U - Puncture sheath capable of displaying interatrial septum position

Info

Publication number: CN217772471U
Application number: CN202221418710.2U
Authority: CN
Inventors: 吴江涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-11-11
Anticipated expiration: 2032-06-06

Abstract

The utility model relates to the field of medical equipment, a can show puncture sheath of room interval position is disclosed, including inner sheath and epitheca, inner sheath and epitheca are the cavity setting, inner sheath length is greater than the epitheca, the inner sheath runs through outside stretching out the epitheca, the epitheca includes sheath pipe body and wraps up in the passageway one in the sheath pipe body outside, a epitheca endpoint department cover is established and is fixed with the location sacculus, passageway one is linked together with the location sacculus, keeps away from the location sacculus the epitheca other endpoint department is connected with hemostatic valve, the inner sheath other end is fixed with the joint, the joint can be dismantled with hemostatic valve and be connected, the utility model has the advantages of it is following and effect: the positioning balloon is arranged at the end part of the outer sheath, the shape of the positioning balloon is observed to determine the depth of the outer sheath extending into the atrium by injecting contrast medium into the positioning balloon, and accidents caused by over puncture are avoided.

Description

Puncture sheath capable of displaying interatrial septum position

Technical Field

The utility model relates to the technical field of medical equipment, in particular to puncture sheath capable of displaying the position of interatrial septum.

Background

Interatrial septum puncture is an operation for treating heart disease, and a puncture sheath is used to penetrate the interatrial septum from the fossa ovalis of the right atrium and to provide a left atrium access for a catheter after entering the left atrium.

However, most of the puncture sheaths on the market at present cannot display the puncture point position of the interatrial septum, so that the depth of the long sheath entering the left atrium cannot be determined clearly, the sheath tube is easy to fall off to the right atrium when operation is easy to occur, re-puncture is needed, or the catheter falls off from the right atrium and is unknown, so that operation risks are caused, and the sheath tube is worried to fall off to the right atrium when operation is performed, so that the sheath is always placed relatively deeply, the control of partial areas of the left atrium is affected, and the puncture sheath capable of displaying the interatrial septum position is needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a puncture sheath that can show interatrial position has for the doctor provides the position reference, reduces the doctor and operates the effect of the degree of difficulty, the high efficiency of operation and safety.

The above technical purpose of the present invention can be achieved by the following technical solutions: including inner sheath and epitheca, inner sheath and epitheca are the cavity setting, inner sheath length is greater than the epitheca, the inner sheath runs through outside stretching out the epitheca, the epitheca includes sheath pipe body and the passageway one of wrapping up in the sheath pipe body outside, an epitheca extreme department cover is established and is fixed with the location sacculus, passageway one is linked together with the location sacculus, keeps away from the location sacculus the epitheca other extreme department is connected with hemostatic valve, the inner sheath other end is fixed with the joint, the joint can be dismantled with hemostatic valve and be connected.

The utility model discloses a further set up to: the hemostatic valve is provided with a first injection port and a second injection port, the first injection port and the second injection port are respectively communicated with the sheath tube body and the first channel, and the first injection port and the second injection port are both connected with a medical three-way valve through hoses.

The utility model discloses a further set up to: the puncture needle is characterized by further comprising a puncture needle, the length of the puncture needle is larger than that of the inner sheath, the puncture needle penetrates out of the inner sheath, an operation portion is arranged at one end, far away from the needle head, of the puncture needle, and a direction indicator is fixed on the puncture needle close to the operation portion.

The utility model discloses a further set up to: and a marking line is arranged on the puncture needle, and the side edge of the direction indicator is close to the needle head.

The utility model discloses a further set up to: one side indent that the hemostasis valve is close to the joint is provided with the draw-in groove, the one side that connects to be close to the hemostasis valve is provided with the kelly, the kelly joint is in the draw-in groove.

The utility model discloses a further set up to: the end points of the needle head of the puncture needle and the end point of the inner sheath, which are far away from the joint, are in matched arc shapes, and the end part of the inner sheath is gradually reduced outwards to form a sharp shape.

The utility model discloses a further set up to: and a pointing plate is vertically fixed on the outer side surface of the joint, and the direction of the pointing plate, which is back to the joint, is the same as the arc direction at the end point of the inner sheath.

The beneficial effects of the utility model are that:

1. when the needle head of the puncture needle punctures the interatrial septum, injecting contrast agent into the second injection port into the positioning saccule, developing under X-rays, if the positioning saccule is clamped at the puncture point, the positioning saccule presents a shape with a thin middle part and two thick ends, which indicates that the outer sheath is clamped at the puncture point and the deep length is safe length, then taking out the puncture needle and the inner sheath in sequence, fixing the outer sheath to perform subsequent operation, simultaneously, pulling the outer sheath to operate, ensuring that the outer sheath is always positioned at the interatrial septum and does not fall off by observing the shape of the positioning saccule at any time, and preventing the over-puncture when preventing the sheath tube from falling off from the interatrial septum; if the positioning saccule does not have a clamped state, the sheath is slowly pushed in, the positioning saccule, namely the sheath is clamped at a puncture point, the puncture point position can be positioned in real time by observing the form of the positioning saccule, the depth of the sheath tube entering the left atrium can be observed, the danger caused by over-puncture is avoided, visual relative position reference is provided for the operation of a doctor by the setting of the positioning saccule, the operation difficulty of the doctor is obviously reduced, the operation risk is also avoided, the proper depth is favorable for subsequent treatment, and the treatment efficiency and the treatment effect are improved.

2. The connector of hemostasis valve and interior sheath passes through the mode of draw-in groove and kelly joint fixed, guarantees that interior sheath is convenient disassembling again simultaneously with the stability of sheath being connected, after the puncture is successful, pulls out the connector from hemostasis valve and can easily separate the two, and easy operation avoids the separation degree of difficulty to lead to the sheath swing to deviate from the puncture point or cause bigger damage to the puncture point greatly.

3. The end point that the joint was kept away from to the inner sheath is the arc and the tip outwards dwindles gradually and is the point form, and the syringe needle of pjncture needle also can be better forms the inclined plane with the most advanced cooperation of inner sheath, and the cooperation is favorable to the puncture on the one hand, and on the other hand can prevent to leak the blood.

4. The joint lateral surface vertical fixation has the directional board, and the directional board direction is the same with the arc orientation of sheath endpoint department, is fixed with the director simultaneously on the pjncture needle, through observing the contained angle between director and the directional board, is favorable to accurate controlling in the operation.

5. The hemostatic valve is connected at the end point of the outer sheath, so that the condition of blood leakage during puncture is avoided, and the life risk is brought to a patient.

6. The inner sheath, the outer sheath and the puncture needle are matched, so that the safety and the high efficiency of the operation are ensured, and the recovery of the illness state of a patient is facilitated.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view after disassembly of the present invention.

FIG. 3 is a schematic cross-sectional view of the sheath.

In the figure, 1, inner sheath; 2. an outer sheath; 21. a sheath body; 22. a first channel; 3. positioning the balloon; 4. a hemostatic valve; 5. a joint; 6. a first injection port; 7. an injection port II; 8. a medical three-way valve; 9. puncturing needles; 10. an operation section; 11. a pointer; 12. marking a line; 13. a card slot; 14. a clamping rod; 15. directed towards the board.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

The embodiment is a puncture sheath capable of displaying interatrial space positions, as shown in fig. 1-3, and comprises an inner sheath 1, an outer sheath 2, a puncture needle 9 and a hemostatic valve 4, wherein the inner sheath 1 and the outer sheath 2 are both hollow, the length of the inner sheath 1 is greater than that of the outer sheath 2 and penetrates and extends out of the outer sheath 2, the length of the puncture needle 9 is greater than that of the inner sheath 1 and penetrates and extends out of the inner sheath 1, the needle head of the puncture needle 9 and the end point of the inner sheath 1, which is far away from a connector 5, are in matched arc shapes, the end part of the inner sheath 1 is outwards gradually reduced to be in a pointed shape, the needle head of the puncture needle 9 can be better matched with the pointed end of the inner sheath 1 to form an inclined plane, on one hand, matching is beneficial to puncture, and on the other hand, blood leakage can be prevented.

As shown in fig. 1-3, the sheath 2 includes a sheath body 21 and a first channel 22 wrapped outside the sheath body 21, a positioning balloon 3 is fixed at one end of the sheath 2, the first channel 22 is communicated with the positioning balloon 3, the tail end of the sheath 2 is connected with a hemostatic valve 4, a first injection port 6 and a second injection port 7 are respectively arranged on the hemostatic valve 4, the first injection port 6 and the second injection port 7 are respectively communicated with the sheath body 21 and the first channel 22, the ports of the second injection port 7 are both connected with a medical three-way valve 8 through hoses, when the needle of the puncture needle 9 punctures the atrial septum, contrast medium is injected into the second injection port 7 into the positioning balloon 3, the medical three-way valve 8 on the second injection port 7 is closed, the medical three-way valve 8 is developed under X-ray, if the positioning balloon 3 is clamped at the puncture site, the positioning balloon 3 presents a shape with two thick middle ends, which indicates that the sheath 2 is clamped at the puncture site and has a safe length, then the puncture needle 9 and the inner 1 are sequentially taken out, the sheath 2 is fixed, and the subsequent operation can be performed, and the atrial septum still needs to be operated, the atrial septum 2 is pushed, and the sheath 2 is ensured to be located at the puncture site, and the interval is prevented from falling off from falling from the puncture space all the time; if the positioning saccule 3 is not clamped, the sheath 2 is slowly pushed, the positioning saccule 3, namely the sheath 2 is clamped at a puncture point, the position of the puncture point can be positioned in real time by observing the form of the positioning saccule 3, the depth of the sheath tube entering the left atrium can be observed, the danger caused by over-puncture is avoided, visual relative position reference is provided for the operation of a doctor by the positioning saccule 3, the operation difficulty of the doctor is obviously reduced, the operation risk is also avoided, meanwhile, the proper depth is favorable for carrying out subsequent treatment, the treatment efficiency and the treatment effect are improved, an injection port I6 is arranged at the same time, and a treatment agent is introduced into the sheath tube body 21 when the subsequent treatment is facilitated.

As shown in fig. 1-3, a connector 5 is fixed at another end of the outer sheath 2 far away from the positioning balloon 3, a clamping groove 13 is concavely arranged on one side of the hemostatic valve 4 close to the connector 5, a clamping rod 14 is arranged on one side of the connector 5 close to the connector 5, the clamping rod 14 is clamped in the clamping groove 13, the connector 5 of the outer sheath 2 and the hemostatic valve 4 are fixed in a clamping manner of the clamping groove 13 and the clamping rod 14, the connection stability of the inner sheath 1 and the outer sheath 2 is ensured, and the inner sheath and the outer sheath are convenient to disassemble simultaneously, when the puncture is successful, the connector 5 can be easily separated by pulling the hemostatic valve 4, the simple operation is realized, and the situation that the outer sheath 2 swings to separate from the puncture point or the puncture point is more damaged due to the difficulty in separation is avoided.

As shown in fig. 1-3, an operation portion 10 is disposed at one end of the puncture needle 9 away from the needle head, so as to stabilize the slotted puncture needle 9 during puncturing, a direction plate 15 is perpendicularly fixed on the outer side surface of the joint 5, the direction of the direction plate 15 is the same as the arc direction of the end point of the inner sheath 1, a direction indicator 11 is fixed on the puncture needle 9 close to the operation portion 10, and accurate operation and control during surgery are facilitated by observing an included angle between the direction indicator 11 and the direction plate 15.

As shown in figures 1-3, a marker line 12 is arranged on the puncture needle 9 at the side of the direction indicator 11 close to the needle head, when the puncture needle 9 is sleeved in the inner sheath 1, when the marker line 12 is flush with the outer end of the hemostatic valve 4, the needle head of the puncture needle 9 is slightly lower than the tip of the inner sheath 1, so as to remind the puncture needle 9 not to excessively penetrate out, and when the puncture is needed, the needle head of the puncture needle 9 extends out of the inner sheath 1, so that the marker line is shielded by the hemostatic valve 4.

The working principle of the puncture sheath capable of displaying the atrial septal position is as follows:

before the positioning balloon 3 is used, the positioning balloon 3 is checked first, a proper amount of contrast medium is injected, the positioning balloon 3 is filled properly, the amount of the injected contrast medium is recorded, then the contrast medium in the positioning balloon 3 is pumped out, and the positioning balloon 3 is completely retracted.

The inner sheath 1, the outer sheath 2 and the puncture needle 9 are assembled in sequence for puncture, when the puncture needle 9 punctures the interatrial septum, contrast agent can be injected, the positioning balloon 3 is filled to the recorded contrast agent amount, and then the shape of the positioning balloon 3 can be observed under X-ray.

If the positioning saccule 3 is clamped at the puncture point, the positioning saccule 3 is in a shape of thin middle and thick two ends, which indicates that the outer sheath 22 is clamped at the puncture point and the depth length is safe, and then the puncture needle 9 and the inner sheath 1 are sequentially taken out, and the outer sheath 2 is fixed, so that subsequent treatment can be carried out; if the positioning saccule 3 is not clamped, the sheath 2 is slowly pushed, the positioning saccule 3, namely the sheath 2 is clamped at a puncture point, the puncture point can be positioned in real time by observing the form of the positioning saccule 3, the depth of the sheath tube entering the left atrium can be observed, the danger caused by over-puncture is avoided, visual relative position reference is provided for the operation of a doctor by the positioning saccule 3, the operation difficulty of the doctor is obviously reduced, the operation risk is also avoided, meanwhile, the proper depth is favorable for carrying out subsequent treatment, and the treatment efficiency and the treatment effect are improved.

The operation of pulling the outer sheath 2 is also needed in the operation, the outer sheath 2 is ensured not to fall off at the puncture point by observing the shape of the positioning saccule 3 at any time, and after the operation is finished, the contrast agent is pumped out to draw out the outer sheath 2.

Claims

1. A puncture sheath capable of displaying the position of interatrial septum is characterized in that: including inner sheath (1) and sheath (2), inner sheath (1) and sheath (2) are the cavity setting, inner sheath (1) length is greater than sheath (2), inner sheath (1) runs through outside stretching out sheath (2), sheath (2) include sheath pipe body (21) and wrap up in passageway (22) in sheath pipe body (21) outside, sheath (2) one end department cover is established and is fixed with location sacculus (3), passageway (22) are linked together with location sacculus (3), keep away from location sacculus (3) sheath (2) another end department is connected with hemostasis valve (4), inner sheath (1) other end is fixed with joint (5), joint (5) can be dismantled with hemostasis valve (4) and be connected.

2. A puncture sheath capable of displaying the interatrial septum location according to claim 1, wherein: the hemostatic valve (4) is provided with a first injection port (6) and a second injection port (7), the first injection port (6) and the second injection port (7) are communicated with the sheath tube body (21) and the first channel (22) respectively, and the first injection port (6) and the second injection port (7) are connected with a medical three-way valve (8) through hoses.

3. The puncture sheath capable of displaying the interatrial septum position according to claim 2, wherein: still include pjncture needle (9), the length of pjncture needle (9) is greater than the length of inner sheath (1), pjncture needle (9) run through and stretch out outside inner sheath (1), the one end that the syringe needle was kept away from to pjncture needle (9) is provided with operating portion (10), is fixed with director (11) on pjncture needle (9) that are close to operating portion (10).

4. A puncture sheath capable of displaying the interatrial septum location according to claim 3, wherein: a marking line (12) is arranged on the puncture needle (9) at the side of the direction indicator (11) close to the needle head.

5. The puncture sheath capable of displaying the interatrial septum position according to claim 4, wherein: one side indent that hemostatic valve (4) are close to joint (5) is provided with draw-in groove (13), one side that joint (5) are close to hemostatic valve (4) is provided with kelly (14), kelly (14) joint is in draw-in groove (13).

6. The puncture sheath capable of displaying the interatrial septum position according to claim 5, wherein: the needle head of the puncture needle (9) and the end point of the inner sheath (1) far away from the joint (5) are in matched arc shapes, and the end part of the inner sheath (1) is outwards gradually reduced to be in a pointed shape.

7. The puncture sheath capable of displaying the interatrial septum position according to claim 6, wherein: the outer side surface of the joint (5) is vertically fixed with a pointing plate (15), and the direction of the pointing plate (15) departing from the joint (5) is the same as the arc direction of the end point of the inner sheath (1).