CN211357328U

CN211357328U - Hemodialysis pipe box

Info

Publication number: CN211357328U
Application number: CN201922096690.6U
Authority: CN
Inventors: 刘家兴; 黄佳
Original assignee: Jingzhou Yihai Technology Co ltd
Current assignee: Jingzhou Yihai Technology Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-08-28
Anticipated expiration: 2029-11-29

Abstract

The utility model discloses a hemodialysis catheter box, which comprises a hemodialysis catheter, an expander, a puncture needle, a guide wire, a dermatotome and an injector, wherein the hemodialysis catheter comprises a main pipe body, a three-way joint, two extension pipes, a buckle and a connecting pipe; the connecting mechanism comprises a clamping ring, a pushing ring and a fixing piece, a middle groove is arranged between the inserting groove and the mounting groove, an annular groove is formed in one end of the extension pipe, and a rubber sealing ring is embedded in the annular groove. The utility model has the advantages of it is following and effect: when the extension pipe is inserted into the insertion groove, the rubber sealing ring on the extension pipe is tightly propped between the inner wall of the middle groove and the outer wall of the extension pipe to realize sealing; and make the propelling movement ring compress tightly on the snap ring through the mounting, the snap ring has the breach for the snap ring compresses tightly on the extension pipe after deformation.

Description

Hemodialysis pipe box

Technical Field

The utility model relates to the technical field of medical equipment, in particular to hemodialysis pipe box.

Background

The hemodialysis catheter box mainly comprises a hemodialysis catheter, an expander, a puncture needle, a guide wire and a dermatome. Hemodialysis catheters are primarily used to create a short-term venous access for hemodialysis, blood sampling, manometry, and fluid infusion.

At present, chinese patent with an authorization notice number of CN209378132U and an authorization notice date of 2019, 9 and 13 discloses a hemodialysis catheter, which includes a main tube, a first extension tube, and a first connector connected to and connected to the main tube and the first extension tube, and further includes a first sealing member, the first sealing member includes a first connecting portion connected to the first connector in a sealing manner, and a second connecting portion connected to one end of the first extension tube in a sealing manner, the first connecting portion is connected to the second connecting portion, and the first connecting portion and the second connecting portion have a thermal shrinkage property. This hemodialysis pipe is through the setting of first sealing member for first joint is connected closely with first extension pipe, thereby has reduced hemodialysis pipe and has leaked the liquid and the risk that drops clinically.

However, in the hemodialysis catheter, after the sealing member is heated, the first connecting portion and the second connecting portion can be connected and sealed through thermal shrinkage, which is inconvenient in the practical process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hemodialysis pipe box has the effect of the leakproofness between the main pipe body and the extension pipe in guaranteeing the dialysis pipe.

The above technical purpose of the present invention can be achieved by the following technical solutions: a hemodialysis catheter box comprises a hemodialysis catheter, an expander, a puncture needle, a guide wire and a dermatotome, wherein the hemodialysis catheter comprises a main pipe body, a three-way joint arranged at one end of the main pipe body, two extension pipes arranged on the other joints of the three-way joint, a buckle arranged on the extension pipe and a connecting pipe arranged at one end of the extension pipe far away from the three-way joint; the connecting mechanism comprises a clamping ring, a pushing ring and a fixing piece, the clamping ring is provided with a notch, the inner wall of the clamping ring is tightly propped against the periphery of the extension pipe, the pushing ring is sleeved on the clamping ring, the inner wall of the pushing ring is tightly propped against the outer wall of the clamping ring, the outer diameter of the clamping ring is gradually reduced along the direction away from the three-way joint, the inner diameter of the pushing ring is gradually reduced along the direction away from the three-way joint, and the fixing piece is arranged between the three-way joint and the pushing ring and is used for tightly pressing the pushing ring on the clamping ring; the rubber sealing ring is characterized in that a middle groove with the inner diameter between the inserting groove and the mounting groove is arranged between the inserting groove and the mounting groove, an annular groove is formed in one end of the extension pipe, and a rubber sealing ring which is tightly abutted to the inner wall of the middle groove is embedded into the annular groove.

By adopting the technical scheme, when the extension pipe is inserted into the insertion groove, the rubber sealing ring on the extension pipe is tightly propped between the inner wall of the middle groove and the outer wall of the extension pipe to realize sealing; and make the propelling movement ring compress tightly on the snap ring through the mounting, because of the external diameter of snap ring reduces along the direction of keeping away from three way connection gradually, the internal diameter of propelling movement ring reduces along the direction of keeping away from three way connection gradually, the snap ring has the breach to compress tightly and realize the fastening on the extension pipe after ordering about the snap ring deformation, and make the extension pipe tighten because of its inside pressure that exists in the hemodialysis pipe use, further improve the fastening effect between snap ring and the extension pipe.

The utility model discloses a further set up to: the notch of mounting groove is provided with the internal thread end, the mounting is threaded connection and holds the screw cap that just compresses tightly the terminal surface of propelling movement ring for the internal thread.

Through adopting above-mentioned technical scheme, screw cap threaded connection is served to the screw thread and is realized fixing, and the terminal surface that pushes away the rotating ring is pressed to the in-process of screw cap threaded connection to the realization is ordered about and is pushed away the rotating ring and compress tightly on the snap ring, realizes fixing the extension pipe.

The utility model discloses a further set up to: be provided with the rotating part in the mounting groove of outstanding on the screw cap, the external diameter of rotating part is greater than three way connection's joint external diameter, the week side of rotating part is provided with anti-skidding stripe.

By adopting the technical scheme, the anti-skid stripes are arranged on the peripheral side of the rotating part on the threaded cover, so that the friction coefficient when the rotating part is held can be increased, and the threaded cover is convenient to rotate; and the external diameter of rotating part is greater than three way connection's joint external diameter, is convenient for grip the rotating part this moment.

The utility model discloses a further set up to: the outer diameter of one end of the extension pipe, which is inserted into the insertion groove, is gradually reduced towards the direction close to the three-way joint.

Through adopting above-mentioned technical scheme, the external diameter orientation that the one end of inserting groove was pegged graft to the extension pipe reduces gradually near three way connection's direction to be convenient for peg graft the extension pipe in the inserting groove.

The utility model discloses a further set up to: connecting pieces are arranged on two sides of the three-way joint, one connecting piece is provided with a first waist-shaped hole extending along the vertical direction, and the other connecting piece is provided with a second waist-shaped hole extending along the horizontal direction.

Through adopting above-mentioned technical scheme, be provided with first waist type hole, second waist type hole on two connection pieces respectively, and first waist type hole and second waist type hole mutually perpendicular to adaptation scope during installation can be increased.

The utility model has the advantages that: when the extension pipe is inserted into the insertion groove, the rubber sealing ring on the extension pipe is tightly propped between the inner wall of the middle groove and the outer wall of the extension pipe to realize sealing; and make the propelling movement ring compress tightly on the snap ring through the mounting, because of the external diameter of snap ring reduces along the direction of keeping away from three way connection gradually, the internal diameter of propelling movement ring reduces along the direction of keeping away from three way connection gradually, the snap ring has the breach to compress tightly and realize the fastening on the extension pipe after ordering about the snap ring deformation, and make the extension pipe tighten because of its inside pressure that exists in the hemodialysis pipe use, further improve the fastening effect between snap ring and the extension pipe.

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 view of the hemodialysis catheter of the present invention;

fig. 3 is a schematic view of a connection structure between a joint and an extension pipe of the middle three-way joint of the present invention.

In the figure, 1, a hemodialysis catheter; 11. a primary tube; 12. a three-way joint; 121. inserting grooves; 122. mounting grooves; 123. an intermediate tank; 124. an internal threaded end; 125. connecting sheets; 1251. a first kidney-shaped hole; 1252. a second kidney-shaped hole; 13. an extension tube; 131. a ring groove; 132. a rubber seal ring; 14. buckling; 15. a connecting pipe; 2. a dilator; 3. puncturing needle; 4. a guide wire; 5. a skin breaking knife; 6. an injector; 71. a snap ring; 711. a notch; 72. a push ring; 73. a fixing member; 731. a threaded cap; 7311. a rotating part; 7312. and (4) anti-skid stripes.

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 hemodialysis catheter kit, as shown in FIG. 1, includes a hemodialysis catheter 1, a dilator 2, a puncture needle 3, a guide wire 4, a skin-breaking knife 5, and an injector 6.

As shown in fig. 1 and 2, the hemodialysis catheter 1 includes a main tube 11, a three-way joint 12 disposed at one end of the main tube 11, two extension tubes 13 disposed at the other joints of the three-way joint 12, a buckle 14 disposed on the extension tubes 13, and a connection tube 15 disposed at one end of the extension tubes 13 far from the three-way joint 12.

As shown in fig. 2 and 3, an insertion groove 121 surrounding the internal pipeline and used for inserting the extension pipe 13 is formed on the joint of the three-way joint 12 used for connecting the extension pipe 13, and the outer diameter of one end of the extension pipe 13 inserted into the insertion groove 121 is gradually reduced toward the direction close to the three-way joint 12. And a mounting groove 122 communicated with the inserting groove 121 is formed on the joint of the three-way joint 12 for connecting the extension pipe 13, and a connecting mechanism positioned in the mounting groove 122 is arranged at the joint of the three-way joint 12 and the extension pipe 13.

As shown in fig. 2 and 3, the connection mechanism includes a snap ring 71, a push ring 72, and a fixing member 73. The snap ring 71 has a notch 711, the inner wall of the snap ring abuts against the periphery of the extension pipe 13, and one end of the snap ring 71 abuts against the bottom of the mounting groove 122. The pushing ring 72 is sleeved on the snap ring 71, the inner wall of the pushing ring 72 is abutted against the outer wall of the snap ring 71, the outer diameter of the snap ring 71 is gradually reduced along the direction away from the three-way joint 12, and the inner diameter of the pushing ring 72 is gradually reduced along the direction away from the three-way joint 12. The notch of the mounting groove 122 is provided with an internal threaded end 124, and the fixing piece 73 is a threaded cover 731 which is in threaded connection with the internal threaded end 124 and presses the end surface of the push ring 72 so as to press the push ring 72 on the snap ring 71; meanwhile, the screw cap 731 is provided with a rotation portion 7311 protruding from the mounting groove 122, the outer diameter of the rotation portion 7311 is larger than the joint outer diameter of the three-way joint 12, and an anti-slip stripe 7312 is provided on the circumferential side of the rotation portion 7311.

As shown in fig. 2 and 3, an intermediate groove 123 having an inner diameter between the insertion groove 121 and the installation groove 122 is disposed between the insertion groove 121 and the installation groove 122, an annular groove 131 is disposed at one end of the extension pipe 13, and a rubber sealing ring 132 for abutting against an inner wall of the intermediate groove 123 is embedded in the annular groove 131.

As shown in fig. 2, connecting pieces 125 are provided on both sides of the three-way joint 12, one connecting piece 125 is provided with a first kidney-shaped hole 1251 extending in the vertical direction, and the other connecting piece 125 is provided with a second kidney-shaped hole 1252 extending in the horizontal direction.

The implementation effect is as follows: when the extension pipe 13 is inserted into the three-way plug 121, a threaded cap 731, a push ring 72 and a snap ring 71 are sequentially sleeved on one end of the extension pipe 13, and a rubber sealing ring 132 is embedded into the annular groove 131 of the extension pipe 13; then, one end of the extension pipe 13 is inserted into the insertion groove 121, and the rubber sealing ring 132 is abutted between the inner wall of the middle groove 123 and the outer wall of the extension pipe 13; then, the push ring 72 and the snap ring 71 are fed into the mounting groove 122, finally, the threaded cap 731 is screwed on the internal thread end 124 of the mounting groove 122, the threaded cap 731 presses the push ring 71, at this time, the push ring 71 presses the snap ring 71, so that the snap ring 71 deforms at the notch 711, and thus the inner diameter of the snap ring 711 is reduced, and the snap ring 71 is pressed on the peripheral side of the extension pipe 13 to be fixed. Meanwhile, the extension tube 13 is tightened due to the pressure in the hemodialysis catheter 1 during use, and the fastening effect between the snap ring 71 and the extension tube 13 is further improved.

Claims

1. The utility model provides a hemodialysis pipe box, includes hemodialysis pipe (1), expander (2), pjncture needle (3), guide wire (4), skin breaking sword (5), syringe (6), hemodialysis pipe (1) is including main pipe body (11), set up at tee bend (12) of main pipe body (11) one end, two extension pipes (13) that set up on all the other joints of tee bend (12), buckle (14) of setting on extension pipe (13), set up connecting pipe (15) of keeping away from tee bend (12) one end in extension pipe (13), its characterized in that: the joint of the three-way joint (12) for connecting the extension pipe (13) is provided with an insertion groove (121) which surrounds the internal pipeline and is used for inserting the extension pipe (13), the joint of the three-way joint (12) for connecting the extension pipe (13) is provided with a mounting groove (122) communicated with the insertion groove (121), and the joint of the three-way joint (12) and the extension pipe (13) is provided with a connecting mechanism positioned in the mounting groove (122); the connecting mechanism comprises a clamping ring (71), a pushing ring (72) and a fixing piece (73), the clamping ring (71) is provided with a notch (711), the inner wall of the clamping ring (71) abuts against the peripheral side of the extension pipe (13), the pushing ring (72) is sleeved on the clamping ring (71), the inner wall of the pushing ring (72) abuts against the outer wall of the clamping ring (71), the outer diameter of the clamping ring (71) is gradually reduced along the direction far away from the three-way joint (12), the inner diameter of the pushing ring (72) is gradually reduced along the direction far away from the three-way joint (12), and the fixing piece (73) is arranged between the three-way joint (12) and the pushing ring (72) and is used for pressing the pushing ring (72) on the clamping ring (71); a middle groove (123) with the inner diameter between the inserting groove (121) and the mounting groove (122) is arranged between the inserting groove (121) and the mounting groove (122), an annular groove (131) is arranged at one end of the extension pipe (13), and a rubber sealing ring (132) which is tightly abutted to the inner wall of the middle groove (123) is embedded into the annular groove (131).

2. A hemodialysis catheter cartridge in accordance with claim 1, wherein: the notch of mounting groove (122) is provided with internal thread end (124), mounting (73) be threaded connection on internal thread end (124) and compress tightly screw cap (731) of the terminal surface of propelling movement ring (72).

3. A hemodialysis catheter cartridge in accordance with claim 2, wherein: the threaded cover (731) is provided with a rotating part (7311) protruding out of the mounting groove (122), the outer diameter of the rotating part (7311) is larger than the joint outer diameter of the three-way joint (12), and anti-skid stripes (7312) are arranged on the peripheral side of the rotating part (7311).

4. A hemodialysis catheter cartridge according to claim 3, wherein: the outer diameter of one end, inserted into the insertion groove (121), of the extension pipe (13) is gradually reduced towards the direction close to the three-way joint (12).

5. A hemodialysis catheter cartridge in accordance with claim 1, wherein: connecting pieces (125) are arranged on two sides of the three-way connector (12), one connecting piece (125) is provided with a first waist-shaped hole (1251) extending along the vertical direction, and the other connecting piece (125) is provided with a second waist-shaped hole (1252) extending along the horizontal direction.