CN211357355U - Disposable aseptic guide apparatus suit - Google Patents

Abstract

The utility model discloses a disposable sterile guiding instrument set, which comprises a catheter sheath, an expander, a puncture needle, a guiding wire, a sterile injector and a skin breaking knife, wherein the puncture needle comprises a needle seat and a needle tube, a connecting tube is integrally arranged on the needle seat, and one end of the needle tube is provided with a connector; the side of the connecting pipe, which is far away from one end of the needle seat, is provided with an external thread end, and one end of the connecting pipe, which is close to the needle seat, is a first positioning end; an internal thread end is arranged in the connector, one end of the connector, which is far away from the needle tube, is a second positioning end, and the inner diameter of the joint of the connecting tube and the needle tube is equal. The utility model has the advantages of it is following and effect: the internal thread end of the connector on the needle tube is in threaded connection with the external thread end of the connecting pipe on the needle seat, and after the external thread end is in threaded connection with the internal thread end, the first positioning end and the second positioning end are abutted and tightly positioned, the coaxiality of the connector and the connecting pipe in the threaded connection process is ensured, and the needle has the effect of enabling the guide wire to smoothly enter the puncture needle.

Description

Disposable aseptic guide apparatus suit

Technical Field

The utility model relates to the technical field of medical equipment, in particular to aseptic guide apparatus suit of disposable.

Background

The disposable sterile guiding apparatus set consists of a catheter sheath, an expander, a puncture needle, a guiding wire, a sterile injector and a skin-breaking knife, belongs to medical apparatuses for interventional operations, is mainly used for interventional operations of introducing a catheter into a blood vessel, such as cardioangiography, percutaneous coronary angioplasty and the like, and is used for enlarging a percutaneous incision and assisting the catheter to enter an artery or a vein.

When the catheter sheath kit is used, the dilator is sleeved into the catheter sheath in advance, and an incision is made on a blood vessel of a patient through the skin-breaking knife; then puncture on the blood vessel through the puncture needle; then leading the guide wire to penetrate into the puncture needle and enter into the blood vessel; then the puncture needle is pulled out, so that the catheter sheath provided with the dilator is sleeved on the guide wire, the catheter sheath is sent into the blood vessel, and the catheter sheath is sent into the inner vessel shell of the blood vessel and is expanded by the dilator so as to be sent conveniently; finally, the guide wire is taken out and the catheter sheath is connected through a sterile syringe so as to realize the injection of the medicine into the blood vessel.

However, in the conventional puncture needle, the needle tube (made of metal material) and the needle base (made of plastic material) are directly combined together, but the inner surface of the joint of the needle tube and the needle base is provided with steps, so that the guide wire is not smooth enough when penetrating into the puncture needle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a disposable aseptic guide apparatus suit, has the effect that makes the smooth and easy entering into the pjncture needle of guide wire.

The above technical purpose of the present invention can be achieved by the following technical solutions: a disposable sterile guide instrument set comprises a catheter sheath, an expander, a puncture needle, a guide wire, a sterile injector and a dermatome, wherein the puncture needle comprises a needle base and a needle tube, a connecting tube is integrally arranged on the needle base, and one end of the needle tube is provided with a connector; the side of the connecting pipe, which is far away from one end of the needle seat, is provided with an external thread end, and one end of the connecting pipe, which is close to the needle seat, is a first positioning end, the diameter of which is gradually increased towards the direction close to the needle seat; be provided with the internal thread end with external screw thread end threaded connection in the connector, the one end that the needle tubing was kept away from to the connector is the direction crescent second location end that the needle tubing was kept away from to the internal diameter orientation, works as after external screw thread end and internal thread end threaded connection, first location end with second location end offsets tightly, the connecting pipe equals with the internal diameter of needle tubing handing-over department.

Through adopting above-mentioned technical scheme, the needle file in the pjncture needle, the needle tubing is when connecting, the internal thread end of the connector on the needle tubing and the external screw thread end threaded connection of the connecting pipe on the needle file, and after external screw thread end and internal thread end threaded connection, first location end and the tight location of second location end counterbalance, the axiality when guaranteeing connector and connecting pipe threaded connection finally makes connecting pipe and needle tubing handing-over department steadily pass through, in use has the effect that makes smooth and easy the entering into the pjncture needle of guide seal wire.

The utility model discloses a further set up to: one end of the connecting pipe close to the needle base is sleeved with a rubber sealing ring, and the rubber sealing ring is tightly clamped between the needle base and the connector.

Through adopting above-mentioned technical scheme, be close to the pot head at the connecting pipe and be equipped with rubber seal, rubber seal is tightened between needle file and connector, and the leakproofness when multiplicable connecting pipe and connector are connected this moment to prevent that needle file and needle tubing from giving birth to the condition of sepage.

The utility model discloses a further set up to: the connecting pipe is provided with the annular in the week of the one end that is close to the needle file, the transversal personally submitting semicircle of rubber seal's inner circle just imbeds in the annular.

Through adopting above-mentioned technical scheme, be provided with the annular on the connecting pipe and supply rubber seal embedding to can prevent that rubber seal from droing from the connecting pipe.

The utility model discloses a further set up to: the inner diameter of the connecting pipe is gradually reduced towards the direction close to the needle tube.

Through adopting above-mentioned technical scheme, the internal diameter of connecting pipe diminishes towards the direction that is close to the needle tubing gradually, and the internal diameter of connecting pipe and needle tubing handing-over department equals to be convenient for guide wire more smooth and easy entering into in the pjncture needle.

The utility model discloses a further set up to: the catheter sheath comprises a sheath tube, a sheath handle, a manifold and a three-way tube, wherein the sheath tube is sequentially communicated with the sheath handle, the sheath handle is internally provided with a hemostatic valve, and the outer diameter of one end, far away from the sheath handle, of the sheath tube is gradually reduced towards the direction far away from the sheath handle.

Through adopting above-mentioned technical scheme, the external diameter orientation of the one end that the sheath handle was kept away from to the sheath pipe dwindles gradually towards the direction of keeping away from the sheath handle, and when the sheath pipe of catheter sheath was inserted to the expander this moment, expander and sheath pipe wedge transition can obtain the operation sensation of sheath pipe and expander integration when using.

The utility model discloses a further set up to: the front end of sheath pipe is provided with a plurality of side openings, and is a plurality of the side opening evenly set up with on the pipe wall of sheath pipe anterior segment one-third strong point department.

By adopting the technical scheme, when the catheter sheath is used, when the distance of the side hole reaches a certain length, the injection can complete the radiography of the near end and the far end at one time, the dispersion speed is high, the range is wide, and the lesion area can be accurately and clearly measured.

The utility model has the advantages that: needle file in the pjncture needle, the needle tubing is when connecting, the internal thread end of the connector on the needle tubing and the external screw thread end threaded connection of the connecting pipe on the needle file, and after external screw thread end and internal thread end threaded connection, first location end and the tight location of second location end counterbalance, the axiality when guaranteeing connector and connecting pipe threaded connection, finally make connecting pipe and needle tubing handing-over department steady transition, in use has the effect that makes smooth and easy entering into the pjncture needle of guide seal wire, moreover, the steam generator is simple in structure, and the design is ingenious, and good sales prospect is provided.

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 of a catheter sheath according to the present invention;

FIG. 3 is a partial cross-sectional view of the middle puncture needle of the present invention;

fig. 4 is a partial enlarged view at a in fig. 3.

In the figure, 1, a catheter sheath; 11. a sheath tube; 111. a side hole; 12. a sheath handle; 13. a manifold; 14. a three-way pipe; 2. a dilator; 3. puncturing needle; 31. a needle seat; 311. a connecting pipe; 3111. an externally threaded end; 3112. a first positioning end; 3113. a ring groove; 32. a needle tube; 321. a connector; 3211. an internal threaded end; 3212. a second positioning end; 33. a rubber seal ring; 4. a guide wire; 5. a sterile syringe; 6. a skin breaking knife.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the 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 of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example 1: a disposable sterile guiding instrument set is shown in figure 1 and comprises a catheter sheath 1, a dilator 2, a puncture needle 3, a guiding wire 4, a sterile syringe 5 and a skin-breaking knife 6.

As shown in fig. 1 and 2, the catheter sheath 1 includes a sheath tube 11, a sheath handle 12 with a hemostatic valve therein, a manifold 13, and a three-way tube 14, which are sequentially communicated. The outer diameter of the end of the sheath 11 away from the sheath handle 12 is gradually reduced toward the direction away from the sheath handle 12. The front end of sheath 11 is provided with two side openings 111, two side openings 111 evenly set up with the pipe wall of 11 anterior segments one third strong departments of sheath on.

As shown in fig. 1, 3 and 4, the puncture needle 3 includes a needle holder 31 and a needle tube 32. The needle holder 31 is integrally provided with a connecting tube 311, and one end of the needle tube 32 is integrally provided with a connector 321. An annular groove 3113 is arranged on the periphery of one end of the connecting pipe 311 close to the needle seat 31, a rubber sealing ring 33 is sleeved on the annular groove 3113, and the cross section of the inner ring of the rubber sealing ring 33 is semicircular and is embedded in the annular groove 3113.

As shown in fig. 3 and 4, an external threaded end 3111 is disposed on the peripheral side of one end of the connection tube 311 away from the needle holder 31, one end of the connection tube 311 close to the needle holder 31 is a first positioning end 3112 with a diameter gradually increasing toward the direction close to the needle holder 31, and the rubber sealing ring 33 is located at the junction of the first positioning end 3112 and the needle holder 31. An internal thread end 3211 in threaded connection with the external thread end 3111 is arranged in the connector 321, and one end of the connector 321 away from the needle tube 32 is a second positioning end 3212 with an inner diameter gradually increasing toward a direction away from the needle tube 32. After the external thread end 3111 and the internal thread end 3211 are screwed, the first positioning end 3112 abuts against the second positioning end 3212. Meanwhile, the inner diameter of the connection tube 311 is gradually reduced toward the needle tube 32, and the inner diameter of the connection tube 311 at the connection part with the needle tube 32 is equal.

The implementation effect is as follows: when the hub 31 of the puncture needle 3 and the needle tube 32 are connected to each other, the rubber packing 33 is fitted around the connection tube 311, and then the female screw end 3211 of the connection head 321 of the needle tube 32 is screwed to the male screw end 3111 of the connection tube 311 of the hub 31. After the internal thread end 3211 and the external thread end 3111 are completely screwed, the first positioning end 3112 and the second positioning end 3212 are abutted and positioned tightly to ensure the coaxiality of the connector 321 and the connection pipe 311 during screwing, and finally the connection between the connection pipe 311 and the needle tube 32 is in smooth transition, so that the effect of smoothly guiding the guide wire 4 into the puncture needle 3 is achieved in use; and at this moment, the rubber sealing ring 33 is pressed between the needle seat 31 and the connector 321, and the sealing performance of the connecting pipe 311 and the connector 321 can be increased, so that the condition that the needle seat 31 and the needle tube 32 permeate liquid is prevented, and the use safety performance of the puncture needle 3 is effectively improved.

Claims (6)

1. The utility model provides a sterile guidance apparatus suit of disposable, includes catheter sheath (1), expander (2), pjncture needle (3), guide wire (4), aseptic syringe (5), brokenly skin sword (6), its characterized in that: the puncture needle (3) comprises a needle seat (31) and a needle tube (32), wherein a connecting tube (311) is integrally arranged on the needle seat (31), and one end of the needle tube (32) is provided with a connector (321); an external thread end (3111) is arranged on the peripheral side of one end, far away from the needle seat (31), of the connecting pipe (311), and one end, close to the needle seat (31), of the connecting pipe (311) is a first positioning end (3112) with the diameter gradually increasing towards the direction close to the needle seat (31); be provided with in connector (321) with external screw thread end (3111) threaded connection's internal thread end (3211), the one end that needle tubing (32) were kept away from in connector (321) is internal diameter towards the direction of keeping away from needle tubing (32) second location end (3212) that progressively enlarges, works as external screw thread end (3111) and internal thread end (3211) threaded connection back, first location end (3112) with second location end (3212) counterbalance tightly, connecting pipe (311) equals with the internal diameter of needle tubing (32) handing-over department.

2. A single use sterile guide instrument set according to claim 1 wherein: one pot head that connecting pipe (311) is close to needle file (31) is equipped with rubber seal (33), rubber seal (33) are tightened between needle file (31) and connector (321).

3. A single use sterile guide instrument set according to claim 2 wherein: the connecting pipe (311) is provided with annular groove (3113) near the week of the one end of needle file (31), the transversal personally submitting of the inner circle of rubber seal (33) is semicircular and imbeds in annular groove (3113).

4. A single use sterile guide instrument set according to claim 1 wherein: the inner diameter of the connecting tube (311) is gradually reduced towards the direction close to the needle tube (32).

5. A single use sterile guide instrument set according to claim 1 wherein: the catheter sheath (1) comprises a sheath tube (11), a sheath handle (12) with a hemostatic valve arranged therein, a manifold (13) and a three-way tube (14) which are sequentially communicated, wherein the outer diameter of one end, far away from the sheath handle (12), of the sheath tube (11) is gradually reduced towards the direction far away from the sheath handle (12).

6. A sterile guide instrument set for single use according to claim 5, wherein: the front end of sheath pipe (11) is provided with a plurality of side openings (111), and is a plurality of side opening (111) evenly set up with the pipe wall of sheath pipe (11) anterior segment one third strong point department on.

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