CN216877395U - Puncture trocar with butterfly wings - Google Patents
Puncture trocar with butterfly wings Download PDFInfo
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- CN216877395U CN216877395U CN202220130319.6U CN202220130319U CN216877395U CN 216877395 U CN216877395 U CN 216877395U CN 202220130319 U CN202220130319 U CN 202220130319U CN 216877395 U CN216877395 U CN 216877395U
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- puncture
- steel needle
- trocar
- indwelling hose
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Abstract
The utility model relates to a puncture trocar with butterfly wings, belonging to the field of medical equipment and comprising a hollow puncture steel needle, a trocar and butterfly wings, wherein one end of the hollow puncture steel needle is a hollow steel needle, and the other end of the hollow puncture steel needle is a steel needle joint; the trocar comprises an indwelling hose, a connecting catheter and a sleeve joint, one end of the indwelling hose is connected with one end of the connecting catheter through the indwelling hose joint, the other end of the connecting catheter is connected with a heparin cap through the sleeve joint, and the hollow puncture steel needle penetrates into the heparin cap from one end of the heparin cap and penetrates out of one end of the indwelling hose; the butterfly wing is installed on the connecting conduit through threaded connection so as to realize rotation and displacement of the sleeve, and one side of the butterfly wing close to the skin is provided with a double-sided medical adhesive tape. The utility model can realize the rotation and displacement of the indwelling hose under the condition that the trocar is basically fixed by the threaded connection of the butterfly wings and the connecting conduit.
Description
Technical Field
The utility model belongs to the technical field of medical instruments, and relates to a puncture trocar with butterfly wings.
Background
Hemodialysis treatment is an important treatment means for life maintenance of end-stage renal patients, and the flow and stability of vascular access of hemodialysis patients are important to the dialysis quality and the life quality. Arteriovenous internal fistulas are the accepted best vascular access. Puncture of arteriovenous internal fistula and protection after puncture are core links for maintaining the arteriovenous internal fistula. The damage of the internal fistula in the using process mainly comes from the damage of a puncture needle to the internal fistula blood vessel and the surrounding tissues in the puncturing and indwelling processes. The traditional internal fistula puncture needle mainly comprises a steel needle and a catheter which are connected. Two puncture needles are respectively used for puncturing the proximal section and the distal section of the vein of the outflow tract of the internal fistula at the beginning of each dialysis. After puncture, the puncture needle is fixed, the needle point is kept in the vein in the whole dialysis process until the dialysis is finished, and the needle is pulled out to press for hemostasis.
However, the traditional steel needle puncture needle has many defects, 1, after the steel needle punctures a blood vessel, the situation that the needle end is clung to the blood vessel wall occurs, so that the blood flow is not smooth; 2. because hemodialysis usually takes 4-5 hours, a patient inevitably needs to move an arm in the hemodialysis process, and the patient is easy to puncture a blood vessel by a sharp steel needle to cause local swelling and large-area bleeding; 3. the steel needle cannot be bent, and if the position of a blood vessel is deep, the angle between the needle and the blood vessel is too large, so that the blood vessel is pierced or the needle tip is easy to slip; 4. when the vein of a patient is not sufficiently filled or the inner diameter of the blood vessel of a child is small, the blood vessel is thin, and a thick steel needle is more difficult to fix and is more stable, so that puncture failure is caused; 5. the steel needle tubing bore is big and the front end is very sharp, has the condition of needle point to the vascular wall fish tail during the angle of adjustment pjncture needle during the operation, increases the risk of thrombus.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a puncture trocar with butterfly wings, which solves the drawbacks of the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme:
a puncture trocar with butterfly wings comprises a hollow puncture steel needle, a trocar and butterfly wings, wherein one end of the hollow puncture steel needle is a hollow steel needle, and the other end of the hollow puncture steel needle is a steel needle joint;
the trocar comprises an indwelling hose, a connecting conduit and a sleeve joint, wherein one end of the indwelling hose is connected with one end of the connecting conduit through the indwelling hose joint, the other end of the connecting conduit is connected with a heparin cap through the sleeve joint, the other end of the connecting conduit is connected with the heparin cap through the sleeve joint, and the hollow puncture steel needle penetrates into one end of the heparin cap, which is far away from the indwelling hose, and penetrates out from one end of the indwelling hose, which is far away from the heparin cap.
The butterfly wing is installed on the connecting conduit through threaded connection so as to realize the rotation and displacement of the sleeve.
Furthermore, a double-sided medical adhesive plaster is arranged on one side, close to the skin, of the butterfly wing.
Further, the length of the indwelling hose is 30 mm.
Furthermore, one end of the hollow steel needle, which is far away from the steel needle joint, is provided with a first small hole.
Furthermore, one end of the steel needle joint, which is far away from the hollow steel needle, is connected with the catheter cap.
Furthermore, one end of the indwelling hose, which is far away from the connecting conduit, is provided with a second small hole.
Further, the length of the external thread is at least twice the length of the internal thread.
The utility model has the beneficial effects that:
1. the butterfly wing is arranged on the trocar, so that an operator can conveniently hold the butterfly wing during puncture, the success rate of puncture is greatly increased, the stability of fixing the cannula after puncture is finished is increased, and the side of the butterfly wing close to the skin is provided with the double-sided medical adhesive plaster, the sleeve can be quickly and preliminarily fixed only by tearing off the protective layer of the double-sided adhesive plaster, the sleeve is prevented from falling off, the butterfly wing is connected with the connecting conduit by adopting threaded connection, keep somewhere the hose and when pasting under the effect of negative pressure and leaning on the vascular wall in hemodialysis's in-process appears, only need to locate the medical adhesive tape on the butterfly wing and detach the back and can realize keeping somewhere the rotation and the displacement of hose through rotating the sleeve pipe under the basically fixed circumstances at the assurance sleeve pipe, avoid causing the trocar to drop when the hose is kept somewhere in the removal, cause patient's misery, the very big technical degree of difficulty that has reduced the operation.
2. The puncture needle is of a cannula type, the indwelling hose is sleeved outside the steel needle assembly, the hard needle is a hollow steel needle, the puncture and the introduction of the indwelling hose are facilitated, after the puncture is completed, the hollow steel needle is withdrawn, and the indwelling hose is remained in a patient blood vessel, so that the blood vessel of the patient is protected, and the swelling caused by the hollow steel needle is avoided.
3. The small holes are formed in the ends of the hollow steel needle and the indwelling hose, so that blood return can be seen in the shortest time, whether puncture enters a blood vessel is judged, the puncture success is improved, and due to the adoption of the indwelling hose, the hollow steel needle is timely withdrawn into the indwelling hose after primary puncture is carried out, and then the indwelling hose is continuously fed into the indwelling hose, so that puncture failure caused by over puncture can be avoided.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the utility model, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of the structure of the present invention;
fig. 2 is a structural schematic diagram of a hollow piercing steel needle.
Reference numerals are as follows: 1-a first small hole, 2-a hollow steel needle, 3-a second small hole, 4-an indwelling hose, 5-an indwelling hose connector, 6-a butterfly wing, 7-a connecting conduit, 8-a sleeve connector, 9-a heparin cap, 10-a steel needle connector and 11-a conduit cap.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the utility model only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the utility model thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and the specific meaning of the terms described above will be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1 to 2, a puncture trocar with butterfly wings comprises a hollow puncture steel needle, a trocar and butterfly wings 6, wherein one end of the hollow puncture steel needle is a hollow steel needle 2, and the other end is a steel needle joint 10;
the trocar comprises an indwelling hose 4, a connecting catheter 7 and a casing joint 8, one end of the indwelling hose 4 is connected with one end of the connecting catheter 7 through the indwelling hose joint 5, the other end of the connecting catheter 7 is connected with a heparin cap 9 through the casing joint 8, the hollow puncture steel needle penetrates into the end, far away from the indwelling hose 4, of the heparin cap 9 from one end, far away from the heparin cap 9, of the indwelling hose 4 and penetrates out of the end, far away from the heparin cap 9, of the indwelling hose 4, and the length of the indwelling hose 4 is set to be 30 mm.
Be equipped with the external screw thread on the connecting tube 7, be equipped with on the butterfly wing 6 with external screw thread assorted internal thread on the connecting tube 7, the butterfly wing 6 is installed through threaded connection in order to realize the rotation and the displacement of trocar on the connecting tube 7, external screw thread length is the twice of internal thread length at least, be equipped with two-sided medical adhesive tape on one side that the butterfly wing 7 is close to the skin.
Furthermore, the front face of one end of the hollow steel needle 2, which is far away from the steel needle joint 10, is provided with the first small hole 1, so that blood returns can be seen conveniently in the shortest time, and whether the steel needle is successfully punctured or not can be judged.
Further, the other end of the steel needle joint 10 is connected with a catheter cap 11.
Furthermore, the side face of one end, far away from the connecting catheter 7, of the indwelling hose 4 is provided with the second small hole 3, so that the blood returning condition of the indwelling hose can be seen quickly, and the puncture success rate is improved.
The puncturing steps of the utility model are as follows: before operation, a nurse judges whether to use a sharp needle or a blunt needle for puncture according to the medical history of a patient, the internal fistula and the scar form, and selects the type of the needle core. Washing hands, wearing cleaning gloves, checking the sealing performance and effective date of the outer package before use, taking out the inner package of the product from the package, checking the integrity of the equipment, and pre-flushing the sleeve with normal saline or heparin saline. Judging the blood flow of the internal fistula, selecting a proper puncture point and disinfecting the skin to a proper range, holding a butterfly wing 6 by a thumb and an index finger of a right hand to puncture a target blood vessel of the vein end puncture point of the arteriovenous internal fistula, slightly touching the skin by a middle finger and the index finger of the left hand to judge the trend of the blood vessel and fix the skin, when the blood flow is observed to flow back upwards along a hollow steel needle 2, indicating that the puncture of the hollow steel needle 2 is successful, properly returning the hollow steel needle 2 into an indwelling hose 4 when the blood backflow is observed in the indwelling hose 4, performing the next puncture to prevent over-puncture, tearing off a protective layer of a double-sided medical adhesive tape on the butterfly wing 6 after the puncture is completed, fixing a trocar on the arm of a patient through the butterfly wing 6 by the thumb, the index finger and the index finger of the right hand, then withdrawing the hollow puncture steel needle by holding the joint 10 of the thumb and the index finger of the left hand, and leaving the indwelling hose 4 in the blood vessel, and the trocar is further fixed by sticking a medical adhesive tape to the cannula joint 8, and then arteriovenous dialysis is performed.
Example 2
In 4-5 hours of hemodialysis, the indwelling hose 4 may cause the wall of the vessel to stick to the vessel wall under the action of the negative pressure of blood, and at this time, the position of the indwelling hose 4 needs to be moved to separate from the vessel wall and float in the blood again, and the method for adjusting the indwelling hose of the utility model comprises the following steps: only need break away from patient's skin to paste the medical adhesive tape on sleeve joint 8, and need not take the trocar wholly up, keep the state by the fixed trocar of butterfly wing 6, because adopt threaded connection between butterfly wing 6 and the connecting tube 7, when butterfly wing 6 keeps motionless, through rotating connecting tube 7, can realize keeping somewhere the rotation and the displacement of hose 4, thereby realize that the adjustment keeps somewhere the purpose of hose 4, very big reduction operating personnel's the technical difficulty, the risk that the trocar drops has been avoided, and because the trocar keeps relatively stable state all the time, very big misery that has alleviateed patient.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (7)
1. The utility model provides a take puncture trocar of butterfly wing which characterized in that: the puncture needle comprises a hollow puncture steel needle, a trocar and a butterfly wing, wherein one end of the hollow puncture steel needle is a hollow steel needle (2), and the other end of the hollow puncture steel needle is a steel needle joint (10);
the trocar comprises an indwelling hose (4), an indwelling hose connector (5), a connecting catheter (7) and a sleeve connector (8), one end of the indwelling hose (4) is connected with one end of the connecting catheter (7) through the indwelling hose connector (5), the other end of the connecting catheter (7) is connected with a heparin cap (9) through the sleeve connector (8), and the hollow puncture steel needle penetrates into the end, far away from the indwelling hose (4), of the heparin cap (9) from one end, far away from the indwelling hose (4), of the heparin cap (9) and penetrates out of the end, far away from the heparin cap (9), of the indwelling hose (4);
be equipped with the external screw thread on connecting tube (7), be equipped with on butterfly wing (6) with external screw thread assorted internal thread on connecting tube (7), butterfly wing (6) are installed through threaded connection in order to realize trocar's rotation and displacement on connecting tube (7).
2. The puncture trocar with butterfly wings as claimed in claim 1, wherein: one side of the butterfly wing (6) is provided with a double-sided medical adhesive tape.
3. The puncture trocar with butterfly wings as claimed in claim 1, wherein: the length of the indwelling hose (4) is 30 mm.
4. The puncture trocar with butterfly wings as claimed in claim 1, wherein: one end of the hollow steel needle (2) far away from the steel needle joint is provided with a first small hole (1).
5. The puncture trocar with butterfly wings as claimed in claim 1, wherein: one end of the steel needle joint, which is far away from the hollow steel needle (2), is connected with a catheter cap (11).
6. The puncture trocar with butterfly wings as claimed in claim 1, wherein: one end of the indwelling hose (4) far away from the connecting catheter (7) is provided with a second small hole (3).
7. The puncture trocar with butterfly wings as claimed in claim 1, wherein: the length of the external thread is at least twice the length of the internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220130319.6U CN216877395U (en) | 2022-01-18 | 2022-01-18 | Puncture trocar with butterfly wings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220130319.6U CN216877395U (en) | 2022-01-18 | 2022-01-18 | Puncture trocar with butterfly wings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216877395U true CN216877395U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220130319.6U Active CN216877395U (en) | 2022-01-18 | 2022-01-18 | Puncture trocar with butterfly wings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216877395U (en) |
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2022
- 2022-01-18 CN CN202220130319.6U patent/CN216877395U/en active Active
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