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Hemostasis vacuum device and hemostasis vacuum scalpel

A vacuum device and scalpel technology, applied in the field of medical devices, can solve the problems of loose scabs, human body irritation, secondary bleeding, etc., and achieve the effects of reducing the risk of secondary bleeding, convenient operation and use, and stable coagulation.

Inactive Publication Date: 2014-12-24
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing hemostatic agents come from biological sources, such as collagen (gelatin or collagen), cellulose, chitosan, starch, fibrin, etc., which may have the potential risk of causing irritation, allergy and inflammation in the human body
Suture blood vessel hemostasis is usually used to deal with relatively large blood vessels, which is difficult to apply to capillary hemostasis
Surgical electric knife hemostasis is usually used to sinter the tissue at the bleeding site, but the sintered tissue may have potential risks of infirm scabbing and unstable coagulation, which may cause secondary bleeding after surgery

Method used

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  • Hemostasis vacuum device and hemostasis vacuum scalpel
  • Hemostasis vacuum device and hemostasis vacuum scalpel
  • Hemostasis vacuum device and hemostasis vacuum scalpel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] In this experiment, the thromboelastography test in vitro of rabbits was mainly carried out using a thromboelastography instrument and rabbit whole blood. The thromboelastography instrument can be a TEG5000 thromboelastography instrument produced by American Blood Technology Company.

[0068] In this test, the hemostatic vacuum device provided by the present invention includes a vacuum generating device, a connecting device and a semipermeable membrane. The vacuum generating device is a portable sputum suction device (model 7E-A / B) purchased from Jiangsu Yuyue Medical Equipment Co., Ltd. The vacuum generating device can provide a negative pressure with a vacuum degree of 0.01Mpa. The connecting device is a suction tube of the portable sputum suction device, and the semipermeable membrane is coated on the tip of the suction tube. The semi-permeable membrane can adopt the semi-permeable membrane produced by Sefar Company, the material of the semi-permeable membrane is nyl...

Embodiment 2

[0084] A rabbit weighing approximately 2 kg was placed on its back on the operating table and the two hind legs were separated; the skin of the rabbit was excised and the muscles were incised to expose and isolate the femoral artery; using surgical scissors, the femoral artery was cut to generate bleeding (The cutting wound is about one-third of the thickness of the femoral artery). The semipermeable tip of the hemostatic vacuum scalpel provided by the present invention is placed on the wound site, and a force of 50 g of weight (about 0.49 N) is applied. The semipermeable tip is made of a semipermeable membrane, and the semipermeable membrane is a nylon semipermeable membrane purchased from Sefar Company. The holes of the semipermeable membrane are regularly arranged. The diameter of the pores is 1 μm. The hemostatic vacuum scalpel includes a suction tube, one end of which is connected to a vacuum generating device, and the other end of which is connected to the semipermeable...

Embodiment 3

[0089] The femoral artery incision test in living rabbits was carried out by the same method as in Example 2, except that the diameter of the pores of the semipermeable membrane was 5 μm.

[0090] The test results are listed in Table 2 and Figure 7 , each test result is the mean value of the hemostasis time of six tests.

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Abstract

The invention provides a hemostasis vacuum device and a hemostasis vacuum scalpel. The hemostasis vacuum device comprises a vacuum generating device, a connecting device with one end connected to the vacuum generating device, and a semi-permeable membrane which is provided with holes for blocking blood platelets and / or blood cells and allowing water molecules to pass through. The other end of the connecting device is connected to the semi-permeable membrane. Thus, the hemostasis vacuum device can absorb moisture in blood at a bleeding part through the holes of the semi-permeable membrane so that the effect of accelerating the hemostasis can be achieved.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a hemostatic vacuum device and a hemostatic vacuum scalpel used to stop bleeding during operations. Background technique [0002] Typically, hemostasis is the first step in wound management. Especially in surgery, hemostasis is a particularly important step. [0003] At present, there are mainly the following hemostasis methods in surgery, namely hemostatic agent hemostasis, blood vessel suture hemostasis and surgical electric knife hemostasis. Most of the existing hemostatic agents come from biological sources, such as collagen (gelatin or collagen), cellulose, chitosan, starch, fibrin, etc., which may cause potential risks of irritation, allergy and inflammation in the human body. Suture blood vessel hemostasis is usually used to deal with relatively large blood vessels, which is difficult to apply to capillary hemostasis. Surgical electrotome hemostasis is usually used to...

Claims

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Application Information

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IPC IPC(8): A61B17/12A61M1/00
CPCA61B17/12A61B2017/12004A61M1/0023
Inventor 刘恺鹏龚祖光范婷刘军钪刘杰白峰吴平凡
Owner 3M INNOVATIVE PROPERTIES CO
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